Blade drive device and optical device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8254008
APP PUB NO 20110164298A1
SERIAL NO

13045881

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A blade drive device includes: a board including an optical path opening; first and second blades cooperatively defining an amount of light passing through the optical path opening to a given amount of light. The first blade includes a first opening. The second blade includes: a first cutout portion defining the amount of light in cooperation with the first opening; and a second cutout portion defining the amount of light in cooperation with the first opening. The second cutout portion overlaps the first blade when the first cutout portion and the first opening cooperatively define the amount of light.

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Patent Owner(s)

  • SEIKO PRECISION INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Charoensilputthakun, Prapas Pathumthani, TH 4 7
Jaitham, Worachai Pathumthani, TH 1 4

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