Catadioptric one-to-one telecentric image combining system

Details Catadioptric one-to-one telecentric image combining system Catadioptric one-to-one telecentric image combining system

1996-03-26

1998-05-05

Dzierzynski, P. M.

Optical: systems and elements

Compound lens system

With curved reflective imaging element

359727, G02B 1700, G02B 2100

Patent

active

057483655

ABSTRACT:
A catadioptric one-to-one optical relay system which is telecentric in both object and image space. The system includes three modules, which include a spherical primary mirror, a spherical secondary mirror with a zero power doublet for axial color correction, and an X-prism for spectral division. The chromatic aberration generated by the X-prism is compensated by the zero power doublet corrector. Because the system is telecentric in both object and image space, the coatings associated with the X-prism are simplified. The system can be used in telescopes, optical systems with sensor protection, and color CCD assemblies.

REFERENCES:
patent: 4711535 (1987-12-01), Shafer
patent: 4743112 (1988-05-01), Burke
patent: 5073016 (1991-12-01), Burke
patent: 5559629 (1996-09-01), Sheets et al.

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