Image display apparatus and image pickup apparatus using the...

Details Image display apparatus and image pickup apparatus using the... Image display apparatus and image pickup apparatus using the...

2008-05-27

2008-05-27

Yam, Stephen (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C345S008000, C359S223100, C359S197100, C359S212100

Reexamination Certificate

active

11432738

ABSTRACT:
Provided is an image display apparatus, including: a light source for emitting a modulated light beam based on image information; a conversion optical system for converting the light beam from the light source into a convergent light beam; a scanning member for two-dimensionally scanning the light beam from the conversion optical system; a scanning optical system for imaging the light beam scanned by the scanning member onto a surface to be scanned; and an ocular optical system for observing a two-dimensional image formed on the surface to be scanned, in which the scanning optical system includes a reflective surface which is rotationally asymmetric, and the reflective surface of the scanning optical system has a positive power in a position in which a center light beam is incident on the reflective surface.

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