Laser probes - RJ Laser

Laser probes 

For every need 

User manual

Contents 

1 The probe product line ..................................................................................... 4 

2 Introduction ......................................................................................................... 5 

3 Safety information .............................................................................................. 6 

General information 

Intended use 

Liability disclaimer 

Safety standards 

4 Safety precautions .............................................................................................. 8 

5 Delivery contents and accessories ...............................................................10 

6 Applications .......................................................................................................12 

7 Types of probes .................................................................................................14 

8 Start up ...............................................................................................................15 

9 Working with probes ......................................................................................17 

Remote functions 

Probe display 

Key functions 

Therapy mode 

10 Mobile use ..........................................................................................................23 

11 Error messages .................................................................................................24 

12 Maintenance .......................................................................................................25 

2

13 Physical principles of laser therapy ...............................................................26 

Continuous wave and pulsed probes 

Energy power output using continuous wave probes 

Energy power output using pulsed probes 

Formular for therapy 

14 Technical data ....................................................................................................36 

Explanation of the icons 

15 Guarantee and disposal ...................................................................................41 

16 Manufacturer information ..............................................................................42 

3

1 

2 

1 

The probe product line 1 

2 

3 

Multi-cluster probes 

For two-dimensional applications, 

Reimers & Janssen offers pulsed 

and continuous wave probes with 

various wavelengths. 

CW multi-cluster probe* 

8x55 mW / 785 nm (infrared) 

+ 4x40 mW / 655 nm (red) 

2 control keys, “Laser On” indicator. 

Pulsed multi-cluster probe 

5x30 W / 904 nm (infrared) 

Display, 2 control keys, “Laser On” 

* This CW multi-cluster probe is also 

required in the use of CW multi-cluster 

probe derma 

4 

5 

6 

Single probes 

All probes for precise spot applications 

are equipped with a display and four 

control keys. 

CW single probe 500mW 

810 nm (infrared) 

Pulsed single probe 

50 W / 904 nm (infrared) 

Additional single probe without 

imaging: 


785 nm (infrared) 

Single probe 150mW 

638 nm (red) 


670 nm (red) 

5 

4 

4

Introduction 2 

Your RJ laser probe 

Thank you for choosing a Reimers & Janssen laser probe. Our extensive probe product line 

provides the optimum laser probe for every therapy and diagnosis need. 

Whether it’s a surface probe, a single probe or laser needles, all our highly specialised laser 

probes are operated with the same control unit: the Physiolaser olympic. With this modular 

design, we can combine technological innovations with a well-designed control concept. 

This has several advantages for you as a therapist. Once you are familiar with the intuitive 

operation of your control unit, you can use other probes in basically the same way. Thus, if 

you wish to purchase a new probe for other applications, there will be little change from 

your usual operation. 

Your Physiolaser olympic automatically detects which probe is attached and “identifi es” your 

preferred settings. With Physiolaser olympic you can even operate two therapy probes and a 

diagnostic probe simultaneously. 

The modular design will also always allow you to benefi t from the newest research 

innovations, because your control unit can be easily updated with the most recent therapy 

products. 

With Reimers & Janssen laser probes, you can make the best of the diverse possibilities for 

gentle laser therapy for you and your patients. 

RJ Laser probes 

For every need 

5

Safety information 3 

General information 

This device consists of a laser probe that can only be operated together with a Physiolaser 

olympic. 

Therefore, before operating your probe you must thoroughly read the user manual for 

your control unit. 

The instructions that follow supplement the user manual of the Physiolaser olympic regarding 

special functions of your probe. In addition, they describe the commissioning of the device 

and indicate hazards associated with its use. 

All individuals who use, care for, service and supervise this device must read and follow 

the instructions. 

This user manual must always be kept with the device and must be transferred ownership 

along with the laser probe. 

Intended use 

Your laser probe is an electrical device that is intended exclusively for use in medical 

practices and clinics and should only be operated under constant supervision. 

This laser device should only be operated by trained medical professionals that have been 

instructed in the handling of the device and in the dangers associated with laser radiation as 

well as in the compliance with the accident prevention regulation “Laser radiation” and the 

IEC 60825-1 “Safety with laser equipment”. 

Liability disclaimer 

You should use your laser probe only for the purposes described in this user manual and 

only under supervision! 

Your laser probe should only be operated with accessories approved by Reimers & Jansen 

GmbH and only with a Reimers & Janssen control unit. Currently, this includes the 

Physiolaser olympic or the Photonic 500 (device types 160A and 160S). 

6

Repair and maintenance work should also only be performed by Reimers & Janssen GmbH 

or an authorized RJ service station. 

The manufacturer is not liable for the device and the consequences resulting from operation 

or applications that are not described within this user manual. The manufacturer 

reserves the right to make changes based on technological improvements. 

Safety standards 

The probes conform to the following international safety standards: 

• IEC 60601-1 Safety of medical electrical devices 

• IEC 60601-1-2 Electromagnetic compliance 

• IEC 60601-1-6 Usability 

• IEC 60601-2-22 Safety of diagnostic and therapeutic laser devices 

• IEC 60825-1 Safety of laser radiation 

7

Safety precautions 4 

Emergency shutdown 

Press fi rmly on the red “Emergency Stop” button on your control unit, turn the key 

switch to “off” and remove the “Remote control plug” from the safety locking device. 

Treatment room 

Operate the laser only indoors. The room in which the laser is located must comply with 

the requirements of the Accident Prevention Regulation “Laser radiation”. All 

entrances must display a laser warning sign in compliance with IEC 60825-1. Refl ective 

objects, mirrors and chrome surfaces must be removed. 

Personnel 

The laser should be operated only by trained medical professionals. Personnel must be 

instructed in the handling of the device and in the dangers associated with laser radiation. 

The operator of a Class 3B laser device should have access to a radiation expert or preferably 

a radiation control offi cer who is has professional experience protecting against 

and controlling the hazards associated with laser, and who will be responsible for the supervision 

of the protective measures against the hazards of laser. Children may enter the 

treatment room only as patient and should be under constant supervision. 

Radiation injuries 

Avoid direct or scattered radiation to the eyes. Do not look directly into the laser 

radiation output area, since visible and invisible laser radiation can cause injury to the eye. 

Laser protective eyewear typ SPERIAN 3199-21160RJ conforming to the European norm 

EN 207 must always be worn within the treatment room during treatment. 

Take precautions when performing therapy in the head region! 

When treating patients with darkly pigmented skin, birthmarks, tattoos, etc, be aware that 

there is a risk of burning because melanin or colour in the skin tissue absorbs the light 

Reduce the power or energy output with pigmented skin. 

8

Risk of infection 

Keep the probe at a distance of approx. 1 cm above wounds or infected skin, because there 

is a risk of infection through contact transmission of germs. 

After each treatment, disinfect your probe as described in the chapter Care and Maintenance 

on page 28. If you use an applicator, disinfect the applicator after each treatment in 

order to minimize the risk of patient infection. 

Risk of burning 

With high power output and longer treatment times, the probe tip can overheat. In this 

case, avoid direct skin contact by using a cap or applicator; otherwise you may burn the 

skin. Alternatively, reduce the power output or treatment time (see also page 22). 

Prevent unauthorised use 

The Physiolaser olympic is equipped with a key switch to prevent unauthorised use. The laser 

can be operated only with the key inserted. 

When the laser is not in use, the key should always be removed and stored separate from 

the unit in order to prevent unauthorised use. 

Registration 

Operators of the Physiolaser olympic must be registered as an operator of a Class 3B laser 

device with the professional association prior to the fi rst commissioning of the device. 

Please consider the national governmental rules and regulations for this class 3B laser 

device. 

Decommissioning in the event of a hazard 

If you believe that the device can no longer be operated safely, it should be 

decommissioned to prevent against further use and to send it to the retailer 

for repair. 

Such cases include: 

• parts of the housing or the probe cable have visible damage, 

• the device no longer functions properly, 

• the device is to be stored for a long period under adverse conditions or is to be 

transported, 

• the display indicator fails or is illegible. 

9

Delivery contents and 

accessories 

Product contents 

• laser probe, convex lens 523 

• carrying case 

Accessories 

Reimers & Janssen manufactures not only laser probes in various power output classes 

and wavelengths; we also offer other products for your CW single probes. These applicators 

can be easily screwed onto the standard product, to allow for additional uses. 

Available applicators that fi t all CW single probes 

Product Length Diameter* Product No. Illustration 

Dental applicator 7 cm 4 mm 5202 

Dental applicator ditto 2 mm 5204 

Dental wand 

Dental wand 

7 cm 

(angled 

60°) 

5 cm 

(straight) 

8 mm 5207 

ditto 5208 

5 

10

Product Length Diameter* Product No. Illustration 

Convex lens 10 mm 523 

Quartz tip 

attachment 

Quartz tip 

attachment 

PDD/PDT Universal 

Attachment 

(one way) 

PDD/PDT 

Endo attachment 

(One way) 

2 cm 2 mm 5241 

dito 4 mm 5251 

2 cm 0.8 mm 5206 

2 cm 0.4 mm 5205 

*Diameter of the light power output opening 

11

Applications 6 

Treatment range 

Reimers & Janssen laser probes can be used for a wide range of treatments in dermatology, 

rheumatology, orthopaedics, physiotherapy, sports medicine and veterinary medicine 

as well as dentistry. 

On your Physiolaser olympic control unit there is a variety of individually adjustable therapy 

programmes. To use these, read the user manual of your control unit. 

Your probe may be used for irradiation of the skin. 

Indications 

The devices is intended to emit energy in the infrared spectrum to provide topical heating 

for use when heat is indicated in the temporary relief of minor muscle and joint pain, muscle 

spasm, pain and stiffness associated with arthritis, and promoting relaxation of the muscle 

tissue. 

Limitations 

As manufacturers we advise against the radiation of the following organs and areas: 

• eyes 

• areas near the thyroid gland and other endocrine glands 

• testicular regions 

• epiphyseal regions in children 

• open fontanel 

• foetuses or in the areas over the uterus of pregnant women 

• dark, pigmented or coloured skin, regions with dark hair 

• non radiation in the head area in patients with (tendency for) epilepsy 

12

In addition, we advise against treatment of patients with the following indications: 

• cytostatic immunosuppression 

• tumour/cancer patients 

13

Probe types 7 

Continuous wave and Superpulsed probes 

Within its product range, Reimers & Janssen offers two types of lasers: CW probes and 

pulsed probes. CW probes, also known as continuous wave probes, provide a continuous laser 

beam, whereas pulsed probes emit extremely short light pulse in succession. 

With both probe types, the light output can be controlled by frequency modulation. The 

Physiolaser automatically determines the attached probe and makes available the appropriate 

programme. 

You may use therapy programs with pre-programmed frequency modulation or simply programme 

the frequencies yourself (individual protocols). For detailed information on this, please 

consult the user manual for your Physiolaser. 

Please note when using frequencies that the energy output for CW probes is always half 

that of continuous wave operation – independent of the frequency. 

In contrast, with pulsed probes – which generally cannot be operated with continuous wave 

– the energy is dependent on the selected frequency. The highest energy is emitted at the 

maximum frequency. The power output cannot be changed with pulsed probes. 

If you would like to know the precise relationship between the amount of energy and the 

power output with continuous wave and pulsed probes, please read the chapter Physical 

Principles of Laser Therapy on page 29. 

14

Start up 8 

Testing for damage during transport 

Begin by testing your probe for damage that may have occurred during transport, i.e. 

whether the housing components or the probe cable have visible damage. If you have a 

probe with a display, remove the protective cover from the display and test the indicator. 

If you discover any damage, do not operate your probe. Instead, contact your retailer. 

Self-test 

Your probe does not require any particular start up procedure. You can connect the probe 

cable to the control unit at any time. However, if you are going to operate your Physiolaser 

for the fi rst time, please read the user manual for your control unit prior to connecting 

your probe. 

Turning on your control unit or connecting the probe to a device that is already on will initiate 

a self test on the connected probe, during which the status indicator blinks briefl y. If 

this does not occur, your laser probe may be connected to the diagnostic socket. 

Status indicator blinks during the self-test. 

Automatic probe detection 

The Physiolaser automatically detects a newly connected probe, and a corresponding symbol 

is depicted in the therapy selection display. 

If the corresponding symbol does not appear, the software of your control unit may need 

to be updated. This can occur if your probe is new to an existing control unit. In that case, 

there is an SD card included with your probe, with which you can easily perform the update 

yourself. An applicable instruction guide will also be included. Contact your retailer. 

15

In the therapy selection display, both laser 

connectors will be presented: Laser 1 corresponds 

to the left connector, Laser 2 to 

the right. 

Probe symbols 

The different probe types are easily distinguished 

by different symbols. 

Pulsed single probe 

Pulsed multi-cluster 

probe 

Light Needle 

CW single probe 

CW multi-cluster 

probe 

Photonic satellite 

Charge Laser Test Power 

Diagnosis 

Laser 

If the “invalid” probe symbol appears, you 

have attached a invalid probe into a laser 

connector. 

16

Working with probes 9 

Remote functions 

Operation of your probe takes place primarily 

via the touchscreen of your Physiolaser 

olympic. Therefore it is required to read the 

instructions for your control unit. 

In this user manual, only the functions 

specifi c to the probes are described: 

For comfortable use, all probes are equipped 

with buttons with which essential program 

functions can be selected directly from the 

probe (remote function). 

Probe display 

Other than the CW multi-cluster probe, all 

probe have a two-line status display. 

If your Physiolaser olympic is in “Stand By” 

mode, this is indicated in the probe 

display. In this state, the buttons on the probe 

are inactive. 

As soon as the “Ready” symbol appears in 

the therapy selection display, the remote 

functions can be used. 

These instructions do not describe 

the special functions of the Light 

Needle. This laser needle acupuncture 

probe has its own user manual. 

Other than the Light Needle, all probes can 

be used in remote function. 

RJ‐Laser 

Stand by 

“Stand By” display in the probe display 

17

Single probe button functions 

CW multi-cluster probe button 

functions 

LASER ON 

FREQUENCY 

LASER 

Superpulsed multi-cluster probe 

button functions 

Start/Stop 

Short: Start therapy; stop therapy 

Long: Start therapy with reduced 

diagnostic power 

Right arrow 

Change to the next therapy 

program 

Left arrow 

Change to the previous therapy 

programme 

Group 

Short: Change to the next 

program group 

Long: Change to the next 

programme set 

F 

Change to the next therapy 

program 

Start/Stop 


Pause 

1x start therapy 

2x stop therapy 

Start/Stop 


18

Change therapy set (single probes) 

If you have installed multiple therapy sets 

on your Physiolaser, you can change to the 

next therapy set by pressing and holding the 

Group button. 

If you have installed a therapy set with multiple 

program groups, advance to the next 

program group by pressing briefl y. 

Basic 

cont. beam 

The program group and therapy program 

are shown on the probe display. 

Selecting the therapy program 

You can change the next or previous therapy 

program with single probes by pressing 

the arrow keys within the program group. 

You can change the next therapy program 

with the CW multi-cluster probes by pressing 

the “F” button. 

The pulsed multi-cluster probe does not 

have this function. 

Basic 

F2 

The display on your control unit indicates 

that the “continuous wave” therapy programme 

in the “basic” program group of the 

“Basic therapy” program set has been selected 

for the attached probe. 

19

Therapy mode 

At any time you can begin therapy from the 

therapy selection mode by briefl y pressing 

on the “Start/Stop” button. 

This is also possible if another probe is chosen 

or if another probe is already present in 

therapy mode. In both cases, the most recently 

used therapy program will begin. 

Do not forget to equip yourself and 

your patient with laser protective 

eyewear prior to commencing therapy. 

Once you press the start button, a two-second 

tone will sound and the status LED will 

blink to indicate the start of therapy. During 

this time, you can always press the “Start/ 

Stop” button to stop the program again, if, 

for example, you have forgotten to put on 

the protective glasses. 

During the two seconds, the multi-cluster 

probes and the superpulsed single probes 

send out a visible, but harmless pilot beam, 

which helps you to fi nd the precise therapy 

location. 

During the therapy, the status indicator will 

remain on. The end of therapy will be indicated 

with a long tone. However, the current 

therapy program can be stopped at any time 

by holding the “Start/Stop” button. 

You can interrupt the therapy with the 

pulsed multi-cluster iprobe using the pause 

button, and resume using the “Start/Stop” 

button. 

Since all buttons are active in therapy 

mode, at any time during a treatment 

you can also change the program. 

F2 1.1 

:150mW 04:45 

Therapy program 

Energy output 

Power output 

Remaining therapy time 

The status LED blinks when you press the 

“Start/ Stop” button until the onset of the 

therapy mode. The status indicator remains 

on during therapy. 

Stop the current therapy programme using 

the Start/Stop button. 

20

Reduced RAC power 

All single probes offer the option to reduce 

the therapy power output to 5mW for RAC 

testing. 

To do this, simply press the “Start/Stop” 

button on your probe longer rather than 

shorter. 

The program sequence is identical on the 

therapy display and the probe display – if 

present – will indicate “R 5mW” in the power 

output section. 

Changing the contrast 

If the probe display is diffi cult to read, for 

example in bright sunlight, you can adjust 

the display on your control unit in the “Laser 

settings” menu. 

Cont. beam 0.8 

R: 5mw 59:19 

Start/Stop button 

“5mW” is indicated in the probe display 

“Laser 1 setting” display on the Physiolaser 

“-” or “+” changes the contrast of the probe 

display. 

21

Caution when using the 


The tip of the CW single probe 500mW can 

overheat with full power output and longer 

treatment times. 

As a result, you should not use this probe 

without an attachment or applicator. 

Otherwise, the probe tip can get too hot 

and may result in burns during contact 

with the skin. 

The CW single probe 500mW should not 

be operated at full power output for longer 

than 5 minutes. If you want to use it for longer, 

you should pause treatment for at least 

one minute every 5 minutes. 

Caution when using the pulsed 

probes 

The maximum recommended frequency 

modulation with superpulsed probes 

is 10,000 Hz. For therapeutic purposes we 

have enabled frequencies up to 40,000 Hz, 

for example, to allow more energy to be 

transferred in a shorter period. However, 

this results in an accelerated ageing of the 

laser diodes. 

The laser diodes should therefore be monitored 

more closely than usual, or in any 

case in the context of the annual safety 

check (see also the chapter Care and Maintenance 

on page 28) 

Caution when using the 

infrared probes 

Every now and then you should test the 

functioning of your infrared probes with the 

help of the laser test diode on your control 

unit. Read the chapter on the Laser 

Function Test in the user manual for your 

Physiolaser. 

22

Mobile use 10 

Sample scenarios 

With the compact Physiolaser olympic you 

can also use your probe during battery operation. 

How long you can actually use the 

probe in practice, depends on various factors, 

for example the ambient temperature 

and the adjusted parameters. 

CW multi-cluster probe in CW 

operation 

1.5 hours 

9 treatments are possible 

Treatment time: 10 Min 

Power output: 400 mW 

Therapy program: CW 

CW single probe 500 mW at 10 kHz 

1.5 hours 



Power output: 500 mW 

Therapy program: CW 

We have conducted a practical test with 

both probe types as a reference point for 

your work: rechargeable battery fully charged, 

each therapy session 10 minutes at 

room temperature. How many sessions are 

possible under these conditions? 

Pulsed single probe at 10 kHz 

5 hours 



Frequency: 10,000 Hz 

Power output 50 W 

Pulsed multi-cluster probe at 10 kHz 

4 hours 



Frequency: 10,000 Hz 

Power output 5 x 30 W 

23

Error messages 11 

Defective laser diodes 

Please also read the chapter “Error messages” 

in the user manual of your Physiolaser. 

On the probe itself only the following error 

messages appear in the case of defective 

laser diodes: 

The therapy programme can no longer be 

initiated, or – in cases when the failure occurs 

during an ongoing treatment – it will 

stop automatically. 

Please contact your retailer for repair. 

Multi-cluster probe error messages 

Laser 1 defect 

Error message that displays on single 


Single probe error messages 

Laser x defect 

The “X” indicates the number of the defective 

diode 

24

Maintenance 12 

Cleaning and disinfection 

Unplug the power cord of the control unit before beginning all cleaning and care! 

Please ensure that you do not use sharp or caustic agents (e.g. acetone) when cleaning 

the plastic parts. Avoid getting moisture in the housing. A damp cloth is the best cleaning 

tool. 

To disinfect the device, use a soft cloth that has been dampened with a mild disinfecting 

agent. 

Always use a damp cloth for cleaning and disinfection – never fl ush water over the 

device. Do not use a solvent! 

If you work with an applicator, sterilise the applicator after each use in order to 

avoid transmitting infection to the patient. 

Calibration and safety check 

We recommend jearly calibration and safety check for the Physiolaser olympic, along with all 

probes and accessories, Please consider the national governmental rules and regulations for 

this class 3B laser device. 

Your Physiolaser olympic does not contain internal parts or components that need to be 

serviced by the user. Thus, there is no reason to open the device housing. 

If you want a service contract, please contact us or your distributor. 

25

Physical principles of laser 

therapy 

Continuous wave and pulsed probes 

In gentle, non-invasive laser therapy, also 

known as LLLT (Low Level Laser Therapy), 

in general, a laser with relatively low power 

is used. Within LLLT, Reimers & Janssen offers 

two different laser types: CW probes 

(CW=continuous wave) emit a continuous 

wave laser light with an output power from 5 

– 500 mW and with pulsed probes, extremely 

short, but up to 50 W strong light pulses 

are emitted sequentially. 

The light emission with both probe types 

can be controlled by frequency modulation. 

With this, the laser beam is periodically switched 

on and off. In your control unit’s software 

this is referred to as “frequency”. You 

can use your therapy programs with preprogrammed 

frequency modulation or simply 

program the frequencies yourself. Please read 

about this in the user manual for your control 

unit. 

When using frequencies, please note that 

the on- and off times of the laser beam are 

equal with the CW probes. Thus, the energy 

output is always half that of a continuous 

wave – independent of the magnitude of 

the frequency. In contrast, with superpulsed 

probes – which generally cannot be operated 

with a continuous wave – the energy 

output amount depends on the selected 

frequency. The highest energy is emitted at 

the maximum frequency 

. 

Reimers & Janssen CW probes 

Reimers & Janssen pulsed probes 

13 

26

Energy output with CW probes 

CW-probes continuously emit the laser 

light with relatively low power output 

in continuous wave operation. This 

can be turned on and off with frequency 

modulation. 

In Reimers & Janssen CW probes, the 

length of time which the laser beam is on 

is always exactly as long as the time off. 

The following fi gures indicate the different 

operation of a CW single probe 50 mW. For 

illustration, small frequency modulations 

have been used. 

In continuous wave operation 

In the fi rst example, the CW probe is operated 

with full power output without frequency 

modulation with continuous wave 

for 2 seconds. Power output and energy 

emission are thus continuous. 

Leistung 

in Milliwatt 

100 

75 

50 

mW 

25 

0 

461 THz 

0,5 

Reimers & Janssen CW probes 

Energy output in CW operation 

Red area = Energy in Joules 

Zeit 

in Sekunden 

The magnifying glass indicates the light frequency of 461 THz, which corresponds to a 

wavelength of 650 nm. 

1 

sek. 

= Power output x 

Dauerstrahl (CW) 

1,5 

time 

= 0.05 W x 2 s 

= 0.1 J 

2 

27

At a frequency of 1 Hz 

In this case the CW probe is operated with 

a frequency modulation of 1 Hz for 2 seconds. 

With equal on and off times, power 

output is only half the time, so the energy 

output is halved. 

100 

75 

50 

mW 

25 

0 

Eine Periode 

0,5 

During 1 period, the laser beam is on 1 x 

and off 1 x. 

1 

sek. 

1,5 

Energy output in frequency operation 

mode 

Red area = Energy in Joules 

Frequency modulation 

Frequency = 

number of periods / 1 

second 

1 Hz = 1 period / 1 second 

1.000 Hz = 1.000 period / 1 second 

1 MHz = 1 x 106 period / 1 

second 

= (power output x 

time) / 2 

= (0.05 W x 2 s) / 2 

= 0.05 J 

2 


In this case, the continuous wave prove is 

modulated at 2 Hz, so the energy output is 

exactly the same as for 1 Hz operation. 

100 

75 

50 

mW 

25 

Eine Periode 

0 

0,5 

At 2 Hz, the laser beam is on 2 x and off 2 x 

each second. 

1 

sek. 

1,5 

If you operate your CW probe with 

frequency modulation, the energy 

output is always halve compared to 

the continuous wave mode – independent 

of the magnitude of the frequency 

modulation. If you want a higher 

energy output, you must increase 

the treatment time or select a continuous 

wave program. If you want a 

lower energy output, you must decrease 

the treatment time or lower 

the power output. 

Light frequencies 

Frequency = 

461 THz = 

1 THz = 

Velocity (light) / 

wavelength 

ca. 300,000 km / s / 

650 nm 

1.000 x 1.000 x 1.000 x 

1.000 Hz 

2 

28

Calculation of therapy time with CW 


If you change the energy output or treatment 

time in your control unit, the software 

automatically calculates the other parameters, 

both in a CW program and in a frequency 

programm 

Adjustable values 

T = Time in minutes / seconds 

E = Energy in Joules 

P = Power output in milliwatts 

Formula for the continuous wave 

programme 

T = E / P 

Formula for the frequency programme 

T = (E / P ) x 2 

Sample calculation with the CW 

single probe 500mW 

If you want to emit 4 Joules in a continuous 

wave program, the treatment time is 8 

seconds. 

Pre-set values 

Energy output = 4 Joule 

Power output = 500 mW 

Calculation of treatment time 

T = 4 J / 0.5 W = 8 s 

If you want to emit the same energy with a 

frequency program, the treatment time is 16 

seconds. 


T = (4 J / 0.5 W) x 2 = 16 s 

You can change the parameters in the 

“Laser settings” display. 

The CW single probe 500mW 

29

Energy output with spulsed probes 

Compared to continuous wave probes, 

pulsed probes emit relatively strong, but 

extremely short light pulses sequentially. 

The duration of the pulses is always equally 

short and equally strong. 

The frequency determines the number of 

pulses per second and thus the average 

power output. The higher the frequency, 

the more energy emitted. The following 

fi gures indicate the relationship based on 

the superpulsed single probe at 90 W. For 

illustration, a very small frequency is contrasted 

with a large one. 


The pulsed probe has a peak power output 

of 90 W. One pulse is emitted per second at 

a modulation frequency of 1 Hz. 

Leistung 

in Watt 

100 

90 

The light frequency amounts to 331 THz, 

which corresponds to a wavelength of 904 

nm. Each pulse emits energy for a duration 

of 100 ns, or 100 billionths of a second. 

W 

75 

50 

25 

0 

331 THz 

1 

Reimers & Janssen superpulsed probes 

General formulae 

total 

energy (E) 

average 

power 

output 


100 ns 

2 

sek. 

= average power output (P) 

x treatment time (T) 

= 

3 

Zeit 

in Sekunden 

peak power output 

x pulse duration x 

frequency 

Treatment time = 10 s 

Frequency modulation = 1 Hz 

Calculation 

E = 90 W x 100 ns x 1 Hz x 10 s 

4 

= 90 W x (100 x 10 -9 )s x 1 Hz x 10s 

= 90 µJ (micro Joules) 

30

At a frequency of 20 kHz 

The same probe at a frequency modulation 

of 20,000 Hz. Each second, the energy 

emitted is 20,000 times greater than at 1 

Hz. 

100 

90 

W 

75 

50 

25 

0 

The magnifying glass indicates that the energy output is in individual pulses emitted 

20,000 times per second. 

With your superpulsed probe, the 

energy output changes depending 

on the frequency modulation. If you 

want to emit more energy, increase 

the frequency or the treatment 

time. If you want to emit less energy, 

reduce the treatment time or decrease 

the frequency. 

The duration of the pulse with Reimers & 

Janssen pulsed probes amounts to 200 ns at 

a frequency modulation up to 9,999 Hz, and 

beyond 10,000 Hz the pulse lasts 100 ns 

1 

20 kHz 

2 

sek. 

3 


total 

energy (E) 

average 

power 

output 


4 

= average power output 

(P) x time (T) 

= 



frequency 

Treatment time = 10 s 

Frequency modulation = 20,000 Hz 

Calculation of energy output 

E = 90 W x 100 ns x 20 kHz x 10 s 

= 90 W x (100 x 10-9 ) s x (20 x 10 3 ) 

Hz x 10 s 

= 1.8 J 

31

Calculation of therapy time with 

pulsed probes 

Energy output and treatment time are the 

only parameters that can be set with superpulsed 

probes, and not the power output. If 

you change the frequency on your control 

unit, the software automatically calculates 

the energy output. 

Sample calculation with the pulsed 

single probe 

The pulsed single probe has a power output 

of 90 W with an pulse duration of 100 ns.* If 

you want to emit 4 Joules at a frequency of 

10 kHz with this probe, the treatment time 

will be 44 seconds. 


time (T) = 

average power 

output 


= 

Energy = 4 J 

total energy (E) / 

average power output 

(P) 



frequency 

Frequency = 10,000 Hz 


T = 4 J / 90 W x 100 ns x 10,000 Hz 

= 4 J / 90 W x (100 x 10-9 ) s x 

(10 x 10 3) Hz 

= 44.44 s 

*at less than 10,000 Hz the pulse duration 

is 200 ns 

You can set the frequency modulation in 

the “Changing the frequency” display. 

Reimers & Janssen superpulsed single 

probe 

32

Calculation formulae for the therapy 

practice 

The previous examples are based on the 

assumption that a 1 mm² laser beam is 

targeted directly from the outlet onto the 

skin and thus a 1 mm² area of the skin 

surface is treated. 

However, in practice it may be that an applicator 

is used or a safety margin is maintained 

to the skin or simply that a larger 

area is to be treated. 

Laserstrahl mit Austrittswinkel 

Laserstrahl bei Austritt: 1 mm 2 

Energiedichte: 1 J / mm 2 

Because the laser beam is not perfectly focussed, 

but instead is emitted at an angle, 

the power output and energy at the surface 

decreases with the distance. This factor 

is expressed in the formulae for power 

density and energy density as: 


power density 

(W/cm 3 ) 

energy density 

(J/cm 2 ) 

= average power out- 

= 

put / beam size 

power density x 

time (treatment 

time) 

Fläche beim Auftreffen: 100 mm 2 

Energiedichte: 0,01 J / mm 2 

The laser beam has a beam size of 1 mm2 

upon emission. Because of the emission 

angle, the surface area (beam size) increases 

with distance, and energy decreases. 

Power and energy density decrease 

proportionally as the irradiated surface 

decreases. 

33

CW single probe 500mW example 

If we assume that the laser beam emanates 

directly from the outlet with a diameter of 

1 mm² (beam size) in the CW single probe, 

then the power density at maximum power 

is 500 mW / mm². 

If we now assume that the irradiated surface 

area is 1 cm 2 , the power density is only 

0.005 W / cm 2 . 


Power density 

(W / cm 2 ) 



= average power 

output / beam size 

Calculation of power density on 1 cm² 

Power density 

(W / cm 2 ) 

= 500 mW / mm 2 

= 0.5 W / 0,01 cm 2 

= 0.005 W / cm 2 

The CW single probe 500mW 

If you want to irradiate this 1 cm 2 surface 

area with 4 Joule of energy, you will need 

13 minutes and 20 seconds of treatment 

time. 


Energy density 

(J / cm 2 ) 



= power density x time 

Energy = 4 J 

(treatment time) 

Calculation of treatment time on 1 cm² 

T = energy density / power density 

= 4 J / cm 2 / 0.005 W /cm 2 

= 800 s 

= 13 minutes + 20 seconds 

34

CW multi-cluster probe example 

If we assume that the laser beam in each 

outlet of the CW multi-cluster probe with 

12 laser diodes has a diameter of 1 cm 2 

(beam size), then the power density at maximum 

power is 600 mW / cm 2 , distributed 

over the 12 laser diodes. This is equivalent 

to 33.33 mW /cm 2 per diode. 

If we now assume that the irradiated surface 

area is 12 cm 2 and each diode irradiates a 1 

cm 2 area, then the power density per diode 

is only 0.0003333 W / cm 2 . 


Power density per 

diode (W/cm 2 ) 

Average power 

output 



= 

= power output / 

average power 

output / beam 

size 

number of diodes 

Calculation of power density per diode 

on 1 cm 2 

Power density 

(W/cm 2 ) 

= 

= (400 mW / 12 ) / 

(power output / 

number of diodes) / 

beam size 

mm 2 

= 33,33 mW / mm 2 

= 0.0003333 W / cm 2 

Reimers & Janssen CW multi-cluster probe 

If you want to achieve an energy density of 

4 Joule/ cm 2 , you will need a treatment time 

of 16 minutes and 40 seconds. 


Power 

output 

= 400 mW 

Energy = 4 J 

Calculation of treatment time on 

1 cm 2 

T = 

(energy density / power 

density ) / number of diodes 

= (4 J / cm2 / 0.0003333 W / 

cm 2 ) / 12 

= 1.000 s 

= 16 minutes + 40 seconds 

35

Technical Data 14 

Technical Data 

Class 3B laser therapy device 

Absolute measurement uncertainty for laser 

power 

Frequency modulation 

Electrical conductance measurement 

accuracy 

Operating conditions 

Ambient temperature + 10°C to +30°C 

Relative humidity 30% to 75% 

Atmospheric pressure 700 hPa to 1060 hPa 

Transport and storage conditions 

+/-20% 

0.1 Hz to 99999 Hz cw laser 

0.1 Hz to 40000 Hz pulsed laser 

+/- 10% 

Ambient temperature -20° C to +40 C 

36

Single probes 

Single probe 

impulse 

Typ 515 A 

Single probe 

CW 50mW 

Typ 510 A 

Single probe 

CW 150mW 

Typ 514 A 

Single 

probe 200mW 

Typ 512 A 

Single probe 

CW 500mW 

Typ 511 A 

Multi-cluster probes 

Cluster probe 

Impulse 

Typ 516 A 

Cluster probe 

CW 

Typ 517 B 

Cluster probe 

CW cuff 

Typ 518 A 

Wavelength Power output Laser type 

Pulse 

duration 

904 nm max. 50 W 

Impulse 

100ns/200ns 

785 nm max. 50 mW Continuous 

wave (CW) 


wave (CW) 


wave (CW) 


wave (CW) 

Wavelength 

Power output Laser type 

Pulse 

duration 

904 nm 5 x max. 30 W 

785 nm 

655 nm 

785 nm 

655 nm 

8 x max. 55 mW 

4 x max. 40 m 

8 x max. 55 mW 

4 x max. 40 m 

impulse 

100/200 ns 

Continuous 

wave (CW) 

Continuous 

wave (CW) 

NOHD* Beam 

divergence 

0.10 m 0.190 rad 

0.10 m 0.140 rad 

0.09 m 0.157 rad 

0.14 m 0.209 rad 

0.29 m 0.157 rad 

NOHD Beam 

divergence 

0.06 m 0.190 rad 

0.10 m 

0.09 m 

0.10 m 

0.09 m 

0.140 rad 

0.157 rad 

0.140 rad 

0.157 rad 

* Safety margin (NOHD): The distance at which the radiation strength or the radiation 

is equal to the corresponding limit for the maximum permissible radiation of the cornea 

(MPE=Maximum Permissible Exposure). 

All probes are equipped with a red LED status indicator. 

37

CW multi-cluster probe: Positioning of the labels on the device 

4 

1. laser warning sign 

2. identifi cation label 

3. bottom laser warning sign 

4. power output label 

CW multi-cluster probe: explanation of device icons and labels 

Identifi cation label Symbols on the Identifi cation 

Power output and warning signs 

3 

3 

1 

2 

Power output label 

Laser warning sign 

IPX0 

0123 

The device meets the requirements 

of 93/42/EEC for medical products. 

No rating against harmful ingress 

of water as defi ned in IEC 529 

„Attention“ Oberserve the 

instructions in the manual for safe 

and effective usage of 

this device. 

Protection against electric shock 

regarding allowable leakage current 

limitations are specifi ed in standard 

60601-1. 

Production date, month - year 

FDA cleared CSA cleared 

38

Single probes: Positioning of the labels on the device* 

2 3 

1. Laser warning sign on the upper side 

2. Laser warning sign on the lower side 

3. Power output label 

4. Identifi cation label 

Single probes: explanation of device icons and labels 





4 

1 

IPX0 

0123 








this device. 




60601-1. 



39

Pulsed multi-cluster probe: Positioning of the labels on the device 

1 

1 

1 

2 

2 

1. Laser warning sign 

2. Laser warning sign 

3 4 

3. Power output label 

4. Identifi cation label 

Superpulsed multi-cluster probe: explanation of device icons and labels 





IPX0 

0123 








this device. 




60601-1. 



40

Guarantee and Disposal 15 

Guarantee 

The manufacturer’s guarantee is valid for 24 months. The manufacturer is only responsible 

for the features warranted by the user manual, if the device has been operated carefully 

according to the user manual. 

Readjustment, calibration and maintenance or repairs should only be performed by the 

retailer, otherwise the guarantee expires. Any alterations or interventions on the device 

by an unauthorized third party void the guarantee. The manufacturer guarantees replacement 

parts for a period of ten years after the date of purchase. 

Disposal 

Probes and control units may not be disposed of along with normal electronic waste because 

of the radiation hazard. The devices should be sent to the manufacturer for decommissioning 

and disposal. 

41

Manufacturer information 

Distributor 

Version 1.4 25.05.2012 

Distributor 

REIMERS & JANSSEN GmbH 

Photomedicine — Laser Therapy 

Fabrikstr. 22 79183 Waldkirch, Germany 

Tel. +49-7681-4934149 Fax +49-7681-4934150 

service@rj-laser.com www.rj-laser.com 

Quality Management ISO 13485: 2003 + AC2009 

16 

42

Laser probes - RJ Laser

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