The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2012
Filed:
Aug. 20, 2008
Kazuhiko Momoki, Koshigaya, JP;
Sayoko Amano, Utsunomiya, JP;
Takehiko Nakai, Utsunomiya, JP;
Reona Ushigome, Utsunomiya, JP;
Takeharu Okuno, Utsunomiya, JP;
Daisuke Sano, Utsunomiya, JP;
Kazuhiko Momoki, Koshigaya, JP;
Sayoko Amano, Utsunomiya, JP;
Takehiko Nakai, Utsunomiya, JP;
Reona Ushigome, Utsunomiya, JP;
Takeharu Okuno, Utsunomiya, JP;
Daisuke Sano, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical system includes an optical element formed of resin. On at least one of optical surfaces on the light incidence side of the optical element formed of resin, a plurality of depressions or protrusions of a size not larger than the wavelengths of visible light is formed without a periodic structure or in a random arrangement.