Blade actuating apparatus for optical instruments

Details Blade actuating apparatus for optical instruments Blade actuating apparatus for optical instruments

2008-07-29

2009-08-11

Phan, James (Department: 2872)

Optical: systems and elements

Light control by opaque element or medium movable in or...

Electro-mechanical

C359S233000, C359S234000, C396S493000

Reexamination Certificate

active

07573629

ABSTRACT:
A base plate is provided with four guide pins and a rotor has four output pins so that each of four blades is provided with a plurality of slots. Individual slots provided to the blades are selectively fitted to the four guide pins and the four output pins so that when the rotor is reciprocated and rotated, the blades are capable of continuously changing the size of an aperture by cooperation of their aperture forming edges while maintaining a regular octagon.

REFERENCES:
patent: 2949076 (1960-08-01), Finkl
patent: 6340252 (2002-01-01), Kawano
patent: 10-62835 (1998-03-01), None
patent: 2000-352737 (2000-12-01), None
patent: 2002-162665 (2002-06-01), None

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