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:
May. 01, 2007
Filed:
Aug. 26, 2005
Yoshihiro Ito, Asaka, JP;
Nobuaki Nago, Asaka, JP;
Takashi Kato, Minami-Ashigara, JP;
Hitoshi Miyano, Saitama, JP;
Yoshihiro Ito, Asaka, JP;
Nobuaki Nago, Asaka, JP;
Takashi Kato, Minami-Ashigara, JP;
Hitoshi Miyano, Saitama, JP;
Fujifilm Corporation, Tokyo, JP;
Fujinon Corporation, Tokyo, JP;
Abstract
The present invention provides a light emitting unit that can accurately control the light output angle and/or direction over long period and an image taking apparatus provided with the light emitting unit. The light emitting unit has a light source, a reflector provided at the back surface of the light source and an optical member provided at the front of the light source. The optical member having: a container which is light-transmissive at least in a light passage region; a light-transmissive dispersion medium enclosed in the container; a dispersoid which is dispersed in the dispersion medium, which is light-transmissive, and which has a refractive index different from the refractive index of the dispersion medium. The optical member controls the output angle and/or direction of the light emitted from the light source and reflected by the reflector by moving the dispersoid using electromagnetic force.