Lens and lens unit

Details Lens and lens unit Lens and lens unit

2007-05-29

2007-05-29

Thompson, Timothy (Department: 2873)

Optical: systems and elements

Lens

With support

C359S808000, C359S819000

Reexamination Certificate

active

10977714

ABSTRACT:
Provided are a lens and a lens unit, whereby even in the case of a small-diameter lens, manufacturing can easily be performed, and a sufficient strength of adhesion to a lens holder can be obtained. The lens includes an effective portion; a peripheral edge portion provided around a periphery of the effective portion, wherein at least one of a front and a rear faces is a planar face intersecting an axial direction; and a rib portion that is provided around a periphery of the peripheral edge portion, that has a front and a rear faces wherein one of the front and the rear faces is a planar face intersecting the axial direction, and that has a thickness reduced to be thinner toward an outer side. The lens unit of the present invention is configured such that the lens is arranged at an end of a lens system, and the lens system is together assembled into a lens holder.

REFERENCES:
patent: 6452731 (2002-09-01), Schorning
patent: 6717754 (2004-04-01), Hirunuma et al.
patent: 2001/0019459 (2001-09-01), Denpo
patent: 60-213916 (1985-10-01), None
patent: 8-313781 (1996-11-01), None
patent: 2002-90606 (2002-03-01), None
patent: 2004-246258 (2004-09-01), None

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