Lens cap retention arrangement

Details Lens cap retention arrangement Lens cap retention arrangement

2005-12-06

2005-12-06

Nguyen, Thong Q (Department: 2872)

Optical: systems and elements

Protection from moisture or foreign particle

Cap or cover

C359S611000, C359S819000, C396S448000

Reexamination Certificate

active

06971754

ABSTRACT:
Vision enhancing apparatus includes a lens and tethered lens cap which protects the lens when the apparatus is not in use. The apparatus also includes a protrusion having a shape complementary to the lens cap for retaining the latter when the apparatus is in use.

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English translation of the Japanese reference No. 2-118534.

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