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:
Apr. 21, 2009
Filed:
Aug. 03, 2005
Toshiaki Takai, Yokohama, JP;
Kenji Yoshimoto, Yokohama, JP;
Hiroyasu Sasaki, Yokohama, JP;
Masanobu Okayasu, Yokohama, JP;
Naoki Matsushima, Yokohama, JP;
Toshiaki Takai, Yokohama, JP;
Kenji Yoshimoto, Yokohama, JP;
Hiroyasu Sasaki, Yokohama, JP;
Masanobu Okayasu, Yokohama, JP;
Naoki Matsushima, Yokohama, JP;
Opnext Japan, Inc., Kanagawa, JP;
Abstract
To provide a small-sized and reliable optical module in which a light emitting element and an optical function element respectively remarkably different in a coefficient of thermal expansion are mounted in the same casing, in the invention, the optical function element is mounted on the casing made of first material substantially equal in a coefficient of thermal expansion to the optical function element, a light emitting element unit including the light emitting element (for example, a thermoelectric module over which the light emitting element is mounted) is mounted on a member (base material) made of second material different from the first material and matched with the light emitting element unit in a coefficient of thermal expansion, and the member is, for example, embedded in the bottom of the casing.