Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Reexamination Certificate
2006-03-28
2006-03-28
Schwartz, Jordan M. (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
C359S630000, C359S732000
Reexamination Certificate
active
07019909
ABSTRACT:
A small optical system that is capable of widening an angle of view is provided. This optical system is provided with a first surface having a reflecting action and a second surface that reflects a light beam reflected on this first surface toward the first surface again. Then, a principal ray at central angle of view that is made incident on the first surface again is reflected and travels to a side opposite to a side of the last time it was reflected from the first surface with respect to a normal line of a surface at a hit point thereof.
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Inoguchi Kazutaka
Matsunaga Motomi
Morishima Hideki
Takagi Akinari
Yamazaki Shoichi
Canon Kabushiki Kaisha
Morgan & Finnegan , LLP
Schwartz Jordan M.
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