Upgrade RayCAD for AutoCAD to Version 8

• Compatibility with AutoCAD version 14 to 2008 and all versions of Mechanical.
• A friendlier registration.  The provided password will enable multiple installations (for instance, work, portable and home computer).
• The new Adjust command  provides an easy way to study ray intersections, adjusting surface parameters like location, direction and surface curvature while getting instantaneous feedback in the form of ray trace, spot diagrams and spot size expressed in RMS. It provides an excellent way to fine-tune your optical design.
• Even Aspheric using 8 coefficients.  The even aspheric surface uses the even powers of the radial distance to describe the asphericity.
• Odd Aspheric using 8 coefficients.  The odd aspheric uses even and odd powers of the radial distance to describe the asphericity. 
• Toroidal surfaces have been added.
• Decentering of surfaces is added, enabling off axis surface generation.
• Scattering traces.  Each refractive surface will cast a new reflected ray.  This can be up to 5 branches deep.
• RMS  (Root Mean Square).  Value is computed when performing a Grid trace.
• Curvature Optimization and Placement Optimization now support both Focus mode and Collimate mode.
• Mirror Rotation  takes into account the half angle due to reflection, so you can simply point to where the reflection needs to be and the mirror will rotate half of that angle.
• Gratings  find the appropriate order.  If wavelength falls outside the free spectrum, the appropriate order is found and used.  This enables you to trace wavelengths covering many orders.
• Input ray  changes are detected.  The program will now detect any changes to input rays.  You are free to stretch or move the ray bundle without using the Gather command again.
• The input ray Gather command  can be set to use the last selection of input rays, so, when changing wavelength or change of color emulation, it does not require selecting of input rays each time.
• Save and load wave selection.  This is useful if a long list of wavelengths has been created.
• Use existent input rays.  You can change wavelengths and color association without gathering input rays each time.
• Automatic erasing of the last trace can be turned on, there by eliminating the "Erase last trace Y/N" prompt.
• Spot ID's are kept and will automatically erase between traces, just like rays.
• Random ray and random spot count can be controlled.
• Number of intersects per ray per surface can be limited to prevent endless TIR.
• Great speed improvement.  AutoCAD is drawing rays and spots while calculation is being accomplished.
   

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ZEMAX is a registered trademark of ZEMAX Development Corporation

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