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. 14, 1998
Filed:
May. 28, 1996
Applicant:
Inventors:
Hans Baumann, Raisdorf, DE;
Jurgen Perkams, Probsteierhagen, DE;
Assignee:
Raytheon Anschuetz GmbH, Kiel, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H01S / ; G03B / ;
U.S. Cl.
CPC ...
385 93 ; 385 92 ; 385 94 ; 385 33 ; 385147 ; 372 43 ; 352 11 ; 352 12 ; 352 25 ; 352 34 ;
Abstract
An optical sound head (L), comprising a red laser diode (11) and a inspection window (90), allowing easy functional inspection, but also simple adjustment during manufacture. The laser diode (11) and all optical (10) and electronic (20) assemblies to be adjusted to a specimen, are accommodated in a replaceable assembly (1), for easy and repeatable (A) replacement. A minimum signal-to-noise ratio for analogue sound scanning is achieved by an additional aperture (15), reducing the light intensity applied to the center of an aperture slot (8). Both apertures (8, 15) are preferably designed as unsupported, laser-cut metal sheets.