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. 02, 2013
Filed:
Nov. 22, 2011
Tomoki Tanemura, Nisshin, JP;
Yukihiro Takeuchi, Miyoshi, JP;
Takao Iwaki, Miyoshi, JP;
Megumi Suzuki, Toyoto, JP;
Tomoki Tanemura, Nisshin, JP;
Yukihiro Takeuchi, Miyoshi, JP;
Takao Iwaki, Miyoshi, JP;
Megumi Suzuki, Toyoto, JP;
Denso Corporation, Kariya, JP;
Abstract
A Fabry-Perot interferometer includes a fixed mirror structure and a movable mirror structure. The fixed mirror structure has a fixed mirror in a spectral region. The movable mirror structure includes a membrane spaced from the fixed mirror structure. The membrane has a movable mirror in the spectral region and multiple springs arranged one inside the other around the spectral region. A spring constant of the inner spring is less than a spring constant of the outer spring. One of the fixed mirror structure and the membrane has multiple electrodes, and the other of the fixed mirror structure and the membrane has at least one electrode that is paired with the electrodes to form opposing electrode pairs arranged one inside the other around the spectral region. The number of the opposing electrode pairs is equal to the number of the springs.