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Semrock Master Catalog 2018

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(continued from previous page)<br />

Fluorophores<br />

Transmission (%)<br />

100<br />

90<br />

80<br />

70<br />

60<br />

50<br />

40<br />

LED-DA/FI/TR/Cy5/Cy7-5X-A<br />

FF01-378/52<br />

FF01-474/27<br />

FF01-554/23<br />

FF01-635/18<br />

FF01-735/28<br />

FF01-432/515/595/681/809<br />

FF409/493/573/652/759-Di01<br />

Figure 3: “SearchLight simulation<br />

demonstrating the compatibility of the<br />

LED-DA/FI/TR/Cy5/Cy7-5XA (penta-band<br />

LED set) and the LED-CFP/YFP/mCherry-<br />

3X-A (triple-band LED set)”<br />

Single-band<br />

Sets<br />

30<br />

20<br />

10<br />

0<br />

350 450 550 650 750 850<br />

Wavelength (nm)<br />

Multiband<br />

Sets<br />

Transmission (%)<br />

100<br />

90<br />

80<br />

70<br />

60<br />

50<br />

40<br />

LED-CFP/YFP/mCherry-3X-A<br />

FF02-438/24<br />

FF01-509/22<br />

FF01-578/21<br />

FF01-475/543/702<br />

FF459/526/596-Di01<br />

Cubes<br />

30<br />

20<br />

10<br />

0<br />

350 450 550 650 750 850<br />

Wavelength (nm)<br />

Laser<br />

Sets<br />

PRODUCT NOTE<br />

NLO<br />

Filters<br />

Orientation of Filters<br />

Because of the durability of <strong>Semrock</strong> filters, you can easily populate<br />

filter cubes, filter sliders, and filter wheels yourself without fear of<br />

damaging the filters. To maximize intended transmission and blocking<br />

and to minimize autofluorescence, filters must always be oriented<br />

so that light is incident on a specific surface of the filter. This note<br />

describes the correct orientation for the different filter types.<br />

Orienting Housed Excitation and Emission Filters<br />

<strong>Semrock</strong> exciter and emitter filters mounted in housings feature<br />

an alignment arrow on the housing; see the illustrations below.<br />

Orient such a filter so that the arrow points in the direction of light<br />

propagation. For microscopes, the exciter filter arrow should point<br />

away from the light source<br />

and toward the dichroic<br />

beamsplitter, and the<br />

emitter filter arrow should<br />

point away from the dichroic<br />

beamsplitter and toward the<br />

eye, detector,<br />

or camera.<br />

Dichroic beamsplitters are<br />

rarely mounted in housings.<br />

See below for guidance.<br />

light<br />

source<br />

emitter<br />

dichroic<br />

exciter<br />

BrightLine ®<br />

sample<br />

BrightLine ®<br />

to eye or<br />

camera<br />

reflective<br />

coating<br />

side<br />

Orienting Dichroic Beamsplitters and Other<br />

Unhoused Optical Filters<br />

Dichroic beamsplitters and other unhoused optical filters feature orientation<br />

marks that identify the coated surface upon which light must be incident.<br />

An orientation mark is placed either on the front surface of the filter, or on<br />

the edge of the filter as a caret (^) mark. The different types of orientation<br />

marks are shown in the following drawings along with the corresponding<br />

orientation guidance.<br />

<strong>Semrock</strong> logo: The logo is on the surface facing the incident light.<br />

Line: A short line is on the surface facing the incident light. The line may be<br />

easier to see if viewed at an oblique angle.<br />

Dot: A small dot is on the surface facing the incident light. The dot may be<br />

easier to see if viewed at an oblique angle.<br />

Caret: A caret on the edge of the filter points in the direction of light<br />

travel. When the viewer faces the surface that receives the incident light,<br />

the caret points away from the viewer.<br />

CAUTION: A number of dichroic beamsplitters have coatings on both<br />

surfaces. Always use the above instructions to identify the coated surface<br />

that should face the incident light! If you encounter any ambiguity or<br />

difficulty, please contact <strong>Semrock</strong> for assistance in identifying the<br />

surface orientation.<br />

Individual<br />

Filters<br />

Dichroic<br />

Beamsplitters<br />

Tunable<br />

Filters<br />

27<br />

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