US Patent 8031412 Optical part, lens barrel, and camera
Patent 8031412 was granted and assigned to Panasonic on October, 2011 by the United States Patent and Trademark Office.
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Patent abstract
An imaging optical system O supported by a lens barrel 3 includes a second lens group G2. The second lens group G2 includes a fourth lens 54 and a black light shielding portion 54d formed by printing. The light shielding portion 54d is a film-shaped portion formed on the surface of the fourth lens 54, and blocks harmful light in the imaging optical system O. The light shielding portion 54d includes a synthetic resin. The light shielding portion 54d is disposed in a non-effective optical area of the fourth lens 54. The effective light path of the imaging optical system O is determined by the light shielding portion 54d.
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Patent Inventor Names
Dai Shintani0
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US Patent 08031412 Optical part, lens barrel, and camera US Patent 8031412 Optical part, lens barrel, and camera
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Patent Number
08031412
Patent Number
8031412
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US Patent 08031412 Optical part, lens barrel, and camera
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Is a
Current assignee
Patent jurisdiction
Patent number
08031412
Date of patent
October 4, 2011
Patent application number
12020207
Date Filed
January 25, 2008
Patent primary examiner
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