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. 15, 1989
Filed:
Mar. 28, 1988
Jacobus A Berkers, Helden, NL;
Oce-Nederland B.V., Venlo, NL;
Abstract
An improved laser module is disclosed wherein a solid state laser is mounted on a laser holder and a lens system is mounted in a lens holder. The lens holder is movable with respect to the laser holder and is provided with a cylindrical part having a first screwthread. To achieve precise focussing of the laser, the laser holder is provided with a cylindrical recess wherein a second screwthread is provided. A cam and groove assembly is also provided in the lens holder and laser holder to prevent rotation of the lens holder. A rotatable intermediate ring is disposed between the first and second screwthreads when viewed radially. This rotatable intermediate ring is provided with an internal screwthread in engagement with the first screwthread and with an external screwthread in engagement with the second screwthread. The pitch of the internal screwthread is slightly different from the pitch of the external screwthread which enables the lens holder to be adjusted more precisely.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile