Optical system with a filter element

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12189154
APP PUB NO 20220381961A1
SERIAL NO

17619570

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Abstract

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An optical system with an entrance pupil, has a first aperture diameter, an exit pupil and a reflective or transmissive filter element spaced at a distance from the entrance pupil, which is designed and arranged such that a second diameter is illuminated on the filter element by a beam passing through the entrance pupil and spreading divergently from this. The second diameter corresponds to n times the first aperture diameter, and n is a number greater than 1, as a result of which the local angular spectrum at each point on the filter element is n times smaller in comparison to the entrance pupil. The filter element selectively reflects or transmits to the exit pupil at each point only a predetermined spectral range. An optical imaging unit comprising the filter element is provided, which images the entrance pupil onto the exit pupil.

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Patent Owner(s)

Patent OwnerAddress
CARL ZEISS JENA GMBHANALYTIK JENA JENA THURINGIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bublitz, Daniel Rausdorf, DE 42 564
Burkhardt, Matthias Eichenberg, DE 27 58
Hillenbrand, Matthias Jena, DE 19 59

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