LENS BARRIER DEVICE

PROBLEM TO BE SOLVED: To improve a situation that a spring for biasing a barrier blade in a closing direction easily falls in a lens barrier device, which has an adverse effect on the improvement of assembly workability of the lens barrier device. SOLUTION: The lens barrier device 1 includes: a barr...

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Bibliographische Detailangaben
Hauptverfasser: SAITO HIROSHI, KUSUI YOSHIO, FUJII HIROSHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To improve a situation that a spring for biasing a barrier blade in a closing direction easily falls in a lens barrier device, which has an adverse effect on the improvement of assembly workability of the lens barrier device. SOLUTION: The lens barrier device 1 includes: a barrier base 3 arranged in front of a lens and having an aperture part 2 at a position opposed to the lens; a cover 5 arranged to be opposed to the barrier base 3 and having an aperture part 4 at a position opposed to the aperture part 2; the barrier blades 6 and 7 assembled between the barrier base 3 and the cover 5 so as to move to open/shut the aperture parts 2 and 4; the springs 8 and 9 biasing the barrier blades 6 and 7 to a closing position; and a barrier blade drive part 10 moving the barrier blades 6 and 7 to an opening position against the biasing force of the springs 8 and 9. The springs 8 and 9 include a barrier blade holding part 24 holding the front and back surfaces of the barrier blades 6 and 7. COPYRIGHT: (C)2008,JPO&INPIT