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:
Mar. 04, 2003
Filed:
Oct. 12, 1999
Applicant:
Inventor:
Henning Henningsen, Låsby, DK;
Assignee:
Dicon A/S, Lystrup, DK;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/772 ; G03B 2/746 ; G03B 2/742 ; G03B 2/732 ; A61N 5/00 ;
U.S. Cl.
CPC ...
G03B 2/772 ; G03B 2/746 ; G03B 2/742 ; G03B 2/732 ; A61N 5/00 ;
Abstract
The invention is an illumination unit for point illumination of a medium where at least one light emitter is arranged to illuminate at least one illumination face via a first lens arrangement and a microshutter arrangement. The lens arrangement has at least one microlens arranged with respect to each microshutter so that light emitted from the light emitter is focused on or in the vicinity of the optical axis of the light channel of the individual microshutters. The fed coherent light from the light emitters is modulated by the microshutters onto the illumination face.