Optical unit

Details Optical unit Optical unit

2008-09-23

2010-06-15

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With support

C359S823000, C359S819000

Reexamination Certificate

active

07738196

ABSTRACT:
An optical unit is provided which includes gaps dR1and dR2in a radial direction that prevent an optical component from being affected by external stress during thermal expansion is formed between an outer circumferential surface of the optical component and an inner circumferential surface of a holder and gaps d0A1and d0A2that prevent the optical component adjacent to a pressing component from being affected by external stress during thermal expansion and are formed between predetermined surfaces on the pressing component and the optical component adjacent to the pressing component opposing each other in an optical axis direction.

REFERENCES:
patent: 5587846 (1996-12-01), Miyano et al.
patent: 7262926 (2007-08-01), Ohsato
patent: 2003-295024 (2003-10-01), None
patent: 2005-101778 (2005-04-01), None
patent: 2007-163657 (2007-06-01), None

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