Optical apparatus and method for expanding an exit pupil

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United States of America Patent

PATENT NO 9753297
SERIAL NO

13581847

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Abstract

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A first optical arrangement is configured to couple into an apparatus a first component of a light beam having a wavelength within a first spectral range; a second optical arrangement configured to couple a second component of the light beam having a wavelength within a different second spectral range; a third optical arrangement configured to expand the first component in a first dimension to create an expanded first component; a fourth optical arrangement configured to expand, in a second dimension, the expanded first component to create a further expanded first component, and to output the further expanded first component; a fifth optical arrangement configured to expand the second component in the second dimension to create an expanded second component; and a sixth optical arrangement configured to expand, in the first dimension, the expanded second component to create a further expanded second component, and to output the further expanded second component.

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Patent Owner(s)

Patent OwnerAddress
CITIBANK N A388 GREENWICH STREET NEW YORK NY 10013

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Levola, Tapani Tampere, FI 54 6607
Saarikko, Pasi Espoo, FI 109 3978

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