Sources

Only Sources in Sequential mode can be exported to the *.ODX file. Sources in Sequential mode are defined by Fields, OBJECT distance, ray aiming, and the STOP surface. Thanks to these elements you can represent a source at infinity or point sources in Ansys Zemax OpticStudio. Both types of sources are imported as Surface source in Speos with an elliptical shape geometry on which the Surface source will be applied.

Source at infinte distance

With a source at infinity, rays are emitted in a collimated beam (OBJECT emitting positioned at an infinite distance). That means the rays are emitted from an OBJECT represented by an elliptical surface where the z-axis of the source is determined by the chief ray. The dimension of the elliptical surface is determined by the dimensions of the collimated beam.

Source Information

The following source information are exported in the *.ODX file:

	Ansys Zemax OpticStudio	Speos
Source Type	Sequential source	Surface source
Intensity distribution	Parameter: Apodization type Value: Uniform / Gaussian / Cosine Cube	Parameter: Intensity Type Value: Lambertian (cos N = 1) Intensity will always be Lambertian
Spectrum	Parameter: Wavelength Value: list of wavelengths and weights	Parameter: Spectrum Type Value: Monochromatic if 1 wavelength defined Library if 2 or more wavelengths defined, along with corresponding spectrum file
Power/Flux	No power to be defined	Parameter: Flux Type Value: radiant flux of 1W
Exitance	Parameter: Output Exitance Value: False	Parameter: Variable exitance Value: False

Geometry Information:

The following geometry information are exported in the *.odx file:

Ansys Zemax OpticStudio	Speos
Orientation	Intensity total angle = 0 deg to consider surface for collimated rays
Dimension: x and y half width
Position
Beam divergence = Collimated beam

Point Source

When the OBJECT is at finite distance, the rays are emitted from a single point, a point source. Rays are emitted in a solid angle cone beam defined by a half angle (OBJECT emitting positioned at a finite distance). That means the rays are emitted from an OBJECT represented by an elliptical surface where the z-axis of the source is determined by the chief ray.

Zemax rays per field are defined by a relative position of a point source and a stop aperture which might result in an asymmetrical beam cone with an elliptical cross section. In Speos, the beam cone will be symmetrical and with a circular cross section, with a radius that corresponds to the semi-major axis of the elliptical cross section.

This way, the light cone always fulfills the STOP aperture/pupil, and the part which is larger than the STOP is blocked by the annulus that will be created in Speos.

Source Information:

The following source information are exported in the *.ODX file.

	Ansys Zemax OpticStudio	Speos
Source Type	Sequential source	Surface source
Intensity distribution	Parameter: Apodization type Value: Uniform / Gaussian / Cosine Cube	Parameter: Intensity Type Value: Lambertian (cos N = 1) Intensity will always be Lambertian
Spectrum	Parameter: Wavelength Value: list of wavelengths and weights	Parameter: Spectrum Type Value: Monochromatic if 1 wavelength defined Library if 2 or more wavelengths defined, along with corresponding spectrum file
Power/Flux	No power to be defined	Parameter: Flux Type Value: radiant flux of 1W
Exitance	Parameter: Output Exitance Value: False	Parameter: Variable exitance Value: False

Geometry Information:

The following geometry information are exported in the *.ODX file:

Ansys Zemax OpticStudio	Speos
Orientation	Intensity total angle = 0 deg to consider surface for collimated rays
Dimension: x and y half width
Position
Beam divergence = Collimated beam