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:
Aug. 17, 2004
Filed:
Feb. 12, 2002
Horiba Ltd., Kyoto, JP;
Abstract
An optical detector wherein detection elements and are provided in a sealed case whose opening portion is blocked with a window material for transmitting light such as an infrared and an ultraviolet ray therethrough, the detection elements being formed opposite to the window material; and optical filters and are disposed between the window material and the detection elements and and used for selecting and causing only light composed of a predetermined band of wavelengths to be transmitted by thin optical films in connection with the detection elements and . The optical detector includes a shielding body having housing portions and for containing the optical filters and and used for preventing any light composed of other than the predetermined band of wavelength selected by the thin optical films and preventing light producing an interference effect during measurement from being transmitted through the optical filters and