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Wide view angle reflective projection lens by using Zernike polynomials surfaces are designed and presented. Detail description and analysis of Zernike polynomials surfaces are provided. Wave front aberration is analyzed and used to design the Zernike polynomials reflective lens. Two types designs of reflective projection lens with Zernike polynomials mirrors are presented, lenses are telecentric...
The efficiency and lumen output of light source for illumination system were analyzed based on Etendue, this analytical approach can predict light source collection efficiency. A new method for measuring the output intensity distribution of light source with elliptical reflector was put forward; the collection efficiency vs. Etendue curve was estimated with this technique. The Etendue was changed...
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