Relay optical system

Details Relay optical system Relay optical system

1996-03-21

1999-03-23

Epps, Georgia

Optical: systems and elements

Lens

Multiple component lenses

359740, 359754, G02B 958, G02B 900

Patent

active

058868356

ABSTRACT:
A relay optical system is disclosed that comprises, in axial order from the object side, first, second, third, and fourth lens groups having a negative, a positive, a positive, and a negative refractive power, respectively. An aperture stop is between the second and third lens groups. Relative to the aperture stop, the first lens group is symmetrical with the fourth lens group and the second lens group is substantially symmetrical with the third lens group. The relay optical system fulfills at least the conditions:

REFERENCES:
patent: 1777262 (1930-09-01), Hasselkus
patent: 3728010 (1973-04-01), Mikami

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