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:
Jun. 15, 1999
Filed:
Jan. 26, 1998
Tetsuo Yoshizawa, Yokohama, JP;
Akio Mihara, Hiratsuka, JP;
Hiromichi Yamashita, Hiratsuka, JP;
Ichiro Ohnuki, Tokyo, JP;
Yasuo Suda, Yokohama, JP;
Keiji Ohtaka, Tokyo, JP;
Toshiaki Sato, Sagamihara, JP;
Taichi Sugimoto, Sagamihara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor optical device is provided with a photo-electric conversion unit having plural photo-electric conversion elements and is entirely sealed by a sealing member. The photo-electric conversion elements are connected to external leads with electrical connectors. The distance D between a planar outer surface and a photoelectric conversion area satisfies the equation, D.gtoreq./2.multidot.l/tan .theta., where .theta. is a critical angle of total reflection of the sealing member with respect to air and l is the maximum length of said photoelectric conversion area.