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TracePro: Features, Highlights, General Information
TracePro®is a comprehensive, versatile
software tool for modeling the propagation
of light in imaging and non-imaging
opto-mechanical systems. Models are
created by importing from a lens design
program or a Computer Aided Drafting
(CAD) program or by directly creating
the solid geometry in TracePro. Source
rays propagate through the model with
portions of the flux of each ray allocated
for absorption, specular reflection and
transmission, fluorescence and scatter.
From the model and ray trace, analyze:
••
Light distributions in illumination and
imaging systems
••
Stray light, scattered light and
aperture diffraction
••
Throughput, loss, or system
transmittance
••
Flux or power absorbed by surfaces
and bulk media
••
Light scattering in biological tissue
••
Polarization effects
••
Fluorescence effects
••
Birefringence effects
TracePro features a simple, intuitive
interface and short learning curve that is
both powerful and user-friendly for
engineers and scientists of all disciplines.
Three editions of TracePro are available
to most cost effectively accommodate
design needs. Node locked and floating
network licenses are available for use on
a single computer with a USB hardware
key and on a network respectively. A
three month Maintenance and Support
Subscription is included with all licenses.
Solid Modeling
Models are created by importing lens
design or Computer Aided Drafting
(CAD) files or by directly creating the
solid geometry in TracePro. Users can
define, position, move, rotate, scale,
sweep, and revolve objects and surfaces
via the user friendly 3-D CAD interface
and with special tools to insert optical
elements such as lens elements, Fresnel
lenses, tubes (lens barrels) and baffles.
The 3-D model can be zoomed, panned,
rotated and rendered.
Material and Surface Properties
Material and surface properties are
applied to object and surfaces in the
solid model. Types of properties include:
••
Material
••
Refraction
••
Fresnel reflections
••
Bulk absorption
••
Bulk scatter
••
Gradient index
••
Birefringence
••
Surface
••
Reflection
••
Coatings
••
Thin film stacks
••
Scatter
••
Surface absorption
••
Gratings
••
Temperature and Temperature
Distribution
••
Polarization
••
Fluorescence
••
Diffraction
••
RepTile- surfaces with random or
periodic arrays of repeated structures
••
Surface light sources
••
Flux
••
Irradiance
••
Blackbody / Gray body
Users may define properties or apply
from TracePro’s property catalogs of
commonly used and commercially
available materials and coatings:
••
Optical glasses
••
Optical thin films - anti-reflection,
metals, dielectrics, dichroics and
interference filters
••
Plastics
••
Surface finishes - anodizing,
mechanical textured, diffusing and
absorbing paints
••
Gradient index materials
••
Wire grid polarizers
New and updated properties are
continuously being released and made
available to users with Maintenance and
Support subscriptions.
Raytrace
Raytracing is the means that TracePro
simulates the distribution of flux
throughout a model or at selected
surfaces.
Sources
There are three methods of defining rays
that launch into the model for ray trace
– Grid, Surface and File sources.
For a Grid Source, the user specifies:
••
Spatial beam profile and weighting –
uniform, Gaussian
••
Spatial Gaussian beam dimensions –
x,y waists at 1/e 2 radius
••
Angular beam profile and weighting
– uniform, Gaussian, Lambertian, Solar
••
Angular beam dimensions
••
Beam orientation
••
Polarization state
••
Degree of polarization
A Surface Source emits rays in a defined
angular distribution from one or more
surfaces of a solid object. The user
specifies the source type as Flux,
Irradiance, Blackbody or Graybody.
A File Source contains ray data and can
be inserted into a TracePro model. Data
consists of XYZ starting points for each
ray, XYZ direction vectors for each ray,
and a flux. A File Source enables:
••
Incorporation of actual measured
source distribution data from Radiant
Imaging into the TracePro model
••
Creation of a source from theoretical
or measured data from another
software application
Ray Tracing
There are user-specified options available
in TracePro Standard and Export editions
that can enhance speed and/or accuracy
to the raytrace:
••
Importance Sampling
••
Ray Splitting
••
Exact Raytracing
••
Accelerated Raytracing
••
Facetted Raytracing
••
Simulation Mode
••
Multiple Exit Surfaces (Simulation
Mode)
••
Voxelization in Object Space
••
Aperture Diffraction
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