Method of developing and manufacturing optical elements and assemblies
AssigneeFusion Optix, Inc.
InventorsTimothy Kelly, Terence Yeo
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Abstract
Alternative methods of designing, developing and manufacturing optical elements and assemblies are provided which enable improvements in effectiveness and efficiency. Subtractive processes using lasers or other tools are utilized to create embedded void spaces that provide reflecting walls within internally reflective optical elements. The designs have advantages in cost, reduced development time, and performance. Light from multiple light sources can be mixed and collimated. Some embodiments provide the ability to integrate a large number of internally reflective optics into a single component and very large components can be made. Embodiments of the invention are designed for manufacturing and can be made without molding tooling.
Claims18
A method for producing a collimating optical element comprising:
- a) providing an optical element design which includes
- i. one or more embedded internally reflective surfaces extending to at least one external surface;
- ii. at least one shaped opening into which an emitting area of a light source can be positioned;
- b) creating a cutting pattern or program to serve as instructions for a localized subtractive process;
- c) Using said localized subtractive process to remove material from a light transmissive volume in a manner which creates air voids within said volume whereby said air voids provide internal reflecting walls within said light transmissive volume.
A method for producing an optical element as claimed in any preceding claims, wherein said localized subtractive process is performed with the light transmissive volume at or above an annealing temperature.
A method for producing an optical element as claimed in any preceding claims wherein said transmissive light volume is annealed after said localized subtractive process is performed.
Dependencies are inferred from the claim text.