Lens cap apparatus for optical instrument

Details Lens cap apparatus for optical instrument Lens cap apparatus for optical instrument

1999-03-03

2000-07-11

Mack, Ricky

Optical: systems and elements

Lens

With support

359822, G02B 702

Patent

active

060881747

ABSTRACT:
A lens cap apparatus for an optical instrument adapted to shield a user's eyes from incident light from any direction. The lens cap apparatus is formed from an annular base with a pivotally connected lid and a connecting assembly for releasably securing the base to a cap-receiving end of a tubular member which houses a lens in an optical instrument. The connecting assembly permits rotation through 360.degree. of the base and its pivotally connected lid in relation to the cap-receiving end of the optical instrument. This 360.degree. rotation coupled with a greater than 180.degree. pivotal movement of the lid in relation to the base gives the user maximum adjustability to shield the user's eyes from incident light from all possible angles. Additionally, the greater than 180.degree. movement of the lid in relation to the base allows the user to adjust the lens cap apparatus to compensate for such variables as the width and shape of the user's head and can be used in conjunction with eye glasses.

REFERENCES:
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patent: 2291821 (1942-08-01), McNabb
patent: 2372479 (1945-03-01), French
patent: 3020802 (1962-02-01), Rautsch et al.
patent: 3698791 (1972-10-01), Walchle et al.
patent: 3829194 (1974-08-01), Van Exel et al.
patent: 4641932 (1987-02-01), Harms
patent: 4865191 (1989-09-01), Easter
patent: 5155624 (1992-10-01), Flagler
patent: 5404280 (1995-04-01), Greek et al.
patent: 5406413 (1995-04-01), Mogamiya

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