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:
Dec. 31, 1996
Filed:
Sep. 12, 1995
Chiu Chau, Woodbridge, NJ (US);
Instruments SA, Inc., Edison, NJ (US);
Abstract
A compact spectrum analyzer module suitable as a subsystem in optoelectronic instrumentation is disclosed which analyzer module employs two mirror surfaces to provide a folded optical path to and from a stock concave focusing diffraction grating. The module has mutually perpendicular input and output optical paths whereby input and output slits, or apertures, can be positioned on adjacent, mutually perpendicular faces of a box-like rectangular housing providing more convenience in the location of external system components such as light samplers and detector arrays, in many situations. Mirror orientation is effective to turn the output optical path through ninety degrees from the input path and to generate from polychromatic light a focused output spectrum in a plane parallel with the input path. Both the input path and the focused output spectrum lie, in preferred embodiments, in planes, not necessarily coincident, that are perpendicular to the optical axis of the grating.