Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Reexamination Certificate
2008-07-08
2008-07-08
Martinez, Joseph (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
C359S634000
Reexamination Certificate
active
11196904
ABSTRACT:
A meniscus combiner for a head up display (HUD) system. The meniscus combiner includes a meniscus lens; a multi-layer dichroic coating formed on a first surface of the meniscus lens; and, an anti-reflection coating formed on a second, opposite surface of the meniscus lens. The meniscus combiner preferably utilizes a non-symmetric aspheric meniscus lens which simplifies the optical system of the image source (overhead or in-dash unit) minimizing aberrations and minimizing costs. The meniscus combiner may be fabricated utilizing a number of lens sections which may be bonded together and blended. Use of multiple lens sections provides the ability to easily optimize the lens design. Alternatively, the meniscus combiner can be fabricated from a single lens.
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Introduction to Optics, 2nd ed.□□Frank L. Pedrotti, S.J. & Leno S. Pedrotti□□Prentice Hall, 1993□□Chapter 19, pp. 391-405.
Organic Led Displays (OLEDS)—The Next Trend? Audioholics.com Online A/V Magazine, Apr. 17, 2005, pp. 1-4.
Peng Guolin
Steffensmeier Martin J.
Eppele Kyle
Greece James R
Jensen Nathan O.
Martinez Joseph
Rockwell Collins, Inc.
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