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Description
Creates a general aspheric surface by specification of the base radius of curvature, conic constant and both odd and even order radial aspheric terms. The following table describes the mathematical form of the General Asphere surface type.
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Relation
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Surface Sag
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Navigation
This feature can be accessed by selecting General Asphere (conicoid plus even and odd order radial polynomial 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.
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General Asphere
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Surface Settings
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Rad
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Radius of curvature.
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0
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Conic
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Conic constant.
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0
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r^n
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Aspheric terms of all orders.
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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
Surface deformation
The general asphere is a sagable surface only when the conic (first term in equation above) is omitted.
Related Topics
Surface types summary
Create a new surface
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Copyright © Photon Engineering, LLC
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