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.

Date of Patent:
Mar. 12, 2024

Filed:

Jan. 15, 2019
Applicant:

Leica Microsystems Cms Gmbh, Wetzlar, DE;

Inventors:

Manuel Kremer, Leimen, DE;

Felix Neugart, Mannheim, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/33 (2006.01); G02B 21/00 (2006.01); G02F 1/11 (2006.01);
U.S. Cl.
CPC ...
G02B 21/0064 (2013.01); G02B 21/0032 (2013.01); G02B 21/0036 (2013.01); G02F 1/116 (2013.01); G02F 1/33 (2013.01); G02B 21/0076 (2013.01);
Abstract

An apparatus for reducing a chromatic spread angle of light diffracted at an acousto-optic element includes the acousto-optic element and a first and a second focusing optical unit. The acousto-optic element is disposed in a beam path of an incident light beam and is configured to generate the diffracted light from the incident light beam such that the diffracted light emanates from a virtual interaction point of the acousto-optic element. The first focusing optical unit is disposed in the beam path upstream of the acousto-optic element and the second focusing optical unit is disposed in the diffracted light such that a focus of the incident light beam is situated downstream of the first focusing optical unit in the acousto-optic element and the virtual interaction point is located in a front focus of the second focusing optical unit.


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