Telescope with a large field of vision

Details Telescope with a large field of vision Telescope with a large field of vision

1996-12-23

1998-11-24

Shafer, Rickey D.

Optical: systems and elements

Compound lens system

With curved reflective imaging element

359364, G02B 510, G02B 1706, G02B 2302

Patent

active

058415750

ABSTRACT:
Telescope comprising two or more reflecting elements, wherein a light beam impinging on a first reflecting element leaves through a second reflecting element, in which the shape of the reflecting surface of the second reflecting element is concave. The shape of the reflecting surface of the first reflecting element is concave. An entrance pupil is arranged in the light path in front of the first reflecting element and the first reflecting element images the entrance pupil nearly in the focus of the second reflecting element.

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patent: 5287218 (1994-02-01), Chen
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