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Description
Creates an X or Y toroidal aspheric surface by specification of the asphere direction, base radius of curvature in X and Y, conic constant, and even or odd aspheric coefficients in X or Y.
The following table describes the mathematical form of a surface which is aspheric in the Y-direction.
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Surface Sag
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Relations
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Functional Form
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X-derivative
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Y-derivative
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Z-derivative
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The following table describes the mathematical form of a surface which is aspheric in the X-direction.
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Surface Sag
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Relations
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Functional Form
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X-derivative
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Y-derivative
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Z-derivative
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Navigation
This feature can be accessed by selecting XY Toroidal Asphere (X or Y toroid with even/odd aspheric terms) as the surface type on the Surface tab of a surface dialog box.
Controls
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Control
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Inputs / Description
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Defaults
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Logical Parent
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Name of Parent entity.
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Custom Element Name
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Name
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Name of surface supplied by user.
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Surf n
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Description
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Description of the surface.
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Traceable
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Surface can be raytraced.
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Checked
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Use for trimming only
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Never raytrace. Surface used for trimming only.
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Unchecked
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Type
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Surface type. Select XY Toroidal Asphere.
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Plane
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Surface Settings
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Toroid Type
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Choose an X- or Y-toroid.
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Y toroid
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X,Y Rad
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X & Y radii of curvature.
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0
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X,Y Conic
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X or Y Conic constants.
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0
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Ai coefficients
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Aspheric term coefficients.
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0
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OK
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Accept settings and close dialog box.
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Cancel
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Discard settings and close dialog box.
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Apply
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Accept settings and keep dialog box open.
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Help
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Access this Help page.
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Application Notes
Functional form
The function form of the XY Toroidal asphere is given by
.png)
.png)
Surface deformation
The XY Toroidal asphere is a sagable surface.
Related Topics
Surface types summary
Create a new surface
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Copyright © Photon Engineering, LLC
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