Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Reexamination Certificate
2007-01-23
2010-10-26
Martinez, Joseph (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
C359S620000
Reexamination Certificate
active
07821717
ABSTRACT:
A lens element comprising: a rear substrate having a front surface provided with a surface relief having a plurality of zones each capable of providing a lens effect; a front substrate disposed in front of the rear substrate and having a rear surface provided with a surface relief having a plurality of zones each capable of providing a lens effect, the zones of the surface reliefs provided on the rear substrate and the front substrate having the same spatial arrangement over the area of the lens element; and solid or liquid, isotropic, intermediate material disposed between the front surface of the rear substrate and the rear surface of the front substrate, the intermediate material having a refractive index different from the refractive index of each of the rear substrate and the front substrate. This construction reduces the degree of Fresnel reflection which would otherwise degrade the optical performance.
REFERENCES:
patent: 6680762 (2004-01-01), Fukuda et al.
patent: 6831787 (2004-12-01), Scarbrough et al.
patent: 2002/0018299 (2002-02-01), Daniell
patent: 1397824 (2003-02-01), None
patent: 2001-133602 (2001-05-01), None
English language translation of abstract and pertinent parts of JP 2001-133602.
English language translation of abstract of CN 1397824, date: Feb. 19, 2003.
Harrold Jonathan
Woodgate Graham John
AU Optronics Corporation
Martinez Joseph
Thomas Kayden Horstemeyer & Risley LLP
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