Optical: systems and elements – Lens – With support
Reexamination Certificate
2006-12-11
2008-10-21
Thompson, Timothy J (Department: 2873)
Optical: systems and elements
Lens
With support
C359S811000
Reexamination Certificate
active
07440200
ABSTRACT:
A projection type display apparatus includes a projection lens barrel holding a projection lens, a micro mirror type display element, and a main body which holds the micro mirror type display element and on which the projection lens barrel is mounted. The projection lens barrel is formed with a barrel-side reference surface which becomes a mounting reference in a direction of an optical axis, and the main body is formed with a mounting reference surface against which the barrel-side reference surface abuts. The main body has an adjusting mechanism which adjusts a length between a reflection surface of the micro mirror type display element and the mounting reference surface.
REFERENCES:
patent: 6715889 (2004-04-01), Nishima et al.
patent: 2005-128370 (2005-05-01), None
Iwai Toshimitsu
Kida Hiroshi
Kuroki Futoshi
Birch & Stewart Kolasch & Birch, LLP
Mitsubishi Electric Corporation
Thompson Timothy J
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