Optical: systems and elements – Mirror – Plural mirrors or reflecting surfaces
Patent
1990-02-14
1994-12-20
Sugarman, Scott J.
Optical: systems and elements
Mirror
Plural mirrors or reflecting surfaces
359850, G02B 510
Patent
active
053750160
ABSTRACT:
A large-size spherical concave mirror, comprises a plurality of small-size concave mirrors joined together to constitute the large-size spherical concave mirror. Each of the small-size concave mirrors includes a concave mirror surface and at least three joining surfaces extending from the concave mirror surface, the small-size concave mirrors adjacent to each other being joined together through the joining surfaces, each of the joining surfaces and a spherical center of the large-size spherical concave mirror being disposed on a respective plane so that the joining surfaces do not face to the spherical center of the large-size spherical concave mirror.
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Hitachi Denshi Kabushiki Kaisha
Nguyen Thong
Sugarman Scott J.
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