High speed multi focal plane optical system
First Claim
Patent Images
1. A pupil concentric optical imaging system comprising:
- an aperture stop (10);
an image forming objective including a first optical element (12) concentric with said aperture stop (10) and adapted to converge a light beam (16) impinging thereon from said aperture stop, anda second optical element (40) situated in the path of said converging beam (34) from said first optical element (12), said second optical element (40) including an entrance face (42) and at least two exit faces (44,
54) from which images emerge to at least two focal surfaces (30,
56), said entrance and exit faces (42, 44,
54) being curved and optically concentric to said aperture stop (10).
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Accused Products
Abstract
Apparatus for eliminating beamsplitter generated optical aberrations in a pupil concentric optical system providing a plurality of spatially separated images on different focal planes or surfaces (30, 56). The system employs a buried surface beamsplitter (40, 40'"'"') having spherically curved entrance (42) and exit faces (44, 54, 74, 76) which are concentric to a system aperture stop (10) with the entrance face being located in the path of a converging light beam (34) directed thereto from an image forming objective element (12) which is also concentric to the aperture stop.
10 Citations
17 Claims
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1. A pupil concentric optical imaging system comprising:
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an aperture stop (10); an image forming objective including a first optical element (12) concentric with said aperture stop (10) and adapted to converge a light beam (16) impinging thereon from said aperture stop, and a second optical element (40) situated in the path of said converging beam (34) from said first optical element (12), said second optical element (40) including an entrance face (42) and at least two exit faces (44,
54) from which images emerge to at least two focal surfaces (30,
56), said entrance and exit faces (42, 44,
54) being curved and optically concentric to said aperture stop (10). - View Dependent Claims (2)
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3. Apparatus for eliminating predetermined optical aberrations generated by a beamsplitter in a pupil concentric optical system comprising:
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an aperture stop (10); at least one image forming objective including at least one light energy converging means (12) concentric with said aperture stop (10) and adapted to converge a light beam (16) impinging thereon from said aperture stop, and a beamsplitter (40) situated in the path of a converging light beam (34) from said converging means (12), said beamsplitter including an entrance face (42) and at least two exit faces (44,
54) from which respective images emerge, said entrance and exit faces being curved and optically concentric to said aperture stop (10). - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification