Rod integrator holder and projection type image display...

Details Rod integrator holder and projection type image display... Rod integrator holder and projection type image display...

2005-08-23

2005-08-23

Mack, Ricky L. (Department: 2873)

Optical: systems and elements

Lens

With support

C359S799000, C359S810000, C359S830000, C359S800000

Reexamination Certificate

active

06934097

ABSTRACT:
A rod integrator holder6has concave clearance grooves67A to67D elongated in the direction of the optical axis L, at the corners within a case61thereof. The clearance grooves67A to67D are configured such that the edges84A to84D of the rod integrator8can be prevented from coming into contact with the inner faces66A to66D of the case61. The edges84A to84D of the rod integrator can be prevented from being broken by coming into contact with the inner faces66A to66D of the case61, and the edges84A to84D of the rod integrator8and the inner faces66A to66D of the case61can be prevented from rubbing against each other to generate dust due to abrasion.

REFERENCES:
patent: 6715880 (2004-04-01), Shouji
patent: 2002/0008791 (2002-01-01), Okamori et al.
patent: 2003/0031031 (2003-02-01), Tiao et al.
patent: 2003/0147154 (2003-08-01), Shimizu et al.
patent: 08-227034 (1996-09-01), None
patent: 11-326727 (1999-11-01), None
patent: 2002-131840 (2002-05-01), None
patent: 2003-232974 (2003-08-01), None

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