Optics: image projectors – Reflector – Plural
Reexamination Certificate
2006-01-10
2006-01-10
Fuller, Rodney (Department: 2851)
Optics: image projectors
Reflector
Plural
C353S077000, C353S037000, C353S098000, C359S858000
Reexamination Certificate
active
06984044
ABSTRACT:
A projection optical system which can project a bright image with less distortion and a small projection distance without causing aberration or an increase in size of reflective surfaces is disclosed. The projection optical system projects luminous flux from an original image onto a projection surface which is oblique to a central principal ray which is a principal ray of luminous flux traveling from the center of the original image to the center of a projected image. The projection optical system comprises a refractive optical system which includes a plurality of refractive optical elements through which the luminous flux from the original image passes through, and a reflective optical system which includes a plurality of reflective surfaces each having an optical power and guides the luminous flux emerging from the refractive optical system to the projection surface.
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Chatani Sawako
Ishii Takayuki
Kurematsu Katsumi
Kurioka Yoshiaki
Sunaga Toshihiro
Fuller Rodney
Sever Andrew
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