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:
Nov. 20, 2012
Filed:
May. 13, 2010
Yoshihiro Oshima, Kanagawa, JP;
Shozo Masuda, Tokyo, JP;
Naoji Nada, Kanagawa, JP;
Kazuhito Shimoda, Kyoto, JP;
Yasutoshi Katsuda, Osaka, JP;
Hideaki Inoue, Gifu, JP;
Yasuro Nakagawa, Aichi, JP;
Yoshihiro Oshima, Kanagawa, JP;
Shozo Masuda, Tokyo, JP;
Naoji Nada, Kanagawa, JP;
Kazuhito Shimoda, Kyoto, JP;
Yasutoshi Katsuda, Osaka, JP;
Hideaki Inoue, Gifu, JP;
Yasuro Nakagawa, Aichi, JP;
Sony Corporation, Tokyo, JP;
Abstract
An image pickup apparatus includes a light-beam splitting mirror configured to transmit and reflect incident light that has entered the light-beam splitting mirror through a photographing optical system; an image sensor that receives light transmitted through the light-beam splitting mirror; an autofocus detecting unit that receives light reflected by the light-beam splitting mirror; a signal processing unit configured to process an image pickup signal of the image sensor; and a display unit configured to display an image being photographed, on the basis of an image signal obtained at the signal processing unit. In the image pickup apparatus, the light-beam splitting mirror has spectral characteristics including a reflectivity of 25% or more and 35% or less at a wavelength of 400 to 650 nm and a reflectivity of 60% or more at a wavelength of about 700 nm through optimization.