Common aperture vision system
First Claim
Patent Images
1. An optical device, comprising:
- a dichroic beamsplitter for splitting an object beam into a reflected beam having a first waveband and a transmitted beam having a second waveband;
an astigmatism correcting lens element, disposed in the optical path of the transmitted beam; and
a coma correcting lens element, disposed in the optical path of the transmitted beam.
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Accused Products
Abstract
An optical device comprises a dichroic beamsplitter for splitting an object beam into a reflected beam having a first waveband and a transmitted beam having a second waveband; an astigmatism-correcting lens element, disposed in the optical path of the transmitted beam; and a coma-correcting lens element, disposed in the optical path of the transmitted beam.
36 Citations
27 Claims
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1. An optical device, comprising:
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a dichroic beamsplitter for splitting an object beam into a reflected beam having a first waveband and a transmitted beam having a second waveband;
an astigmatism correcting lens element, disposed in the optical path of the transmitted beam; and
a coma correcting lens element, disposed in the optical path of the transmitted beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 21, 22)
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17. A method of displaying images, comprising:
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directing an object beam at a dichroic beamsplitter, thereby splitting an object beam into a reflected beam having a first waveband and a transmitted beam having a second waveband;
directing the transmitted beam at an astigmatism correcting lens element, thereby correcting the transmitted beam for astigmatic aberration; and
directing the transmitted beam at a coma correcting lens element, thereby correcting the transmitted beam for axial coma. - View Dependent Claims (18, 19, 20, 23, 24, 25, 26, 27)
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Specification