Variable focal length reflector lens system

Details Variable focal length reflector lens system Variable focal length reflector lens system

G - Physics

02

B

88/100

G02B 15/14 (2006.01) G02B 13/24 (2006.01) G02B 15/16 (2006.01) G02B 17/08 (2006.01)

Patent

CA 1080010

VARIABLE FOCAL LENGTH REFLECTOR LENS SYSTEM ABSTRACT OF THE DISCLOSURE A variable magnification lens in the form of a reflector lens as the equivalent of a symmetrical fulls lens without reflector. The invention is exemplified by a three-element zoom lens having a fixed outer element and a fixed reflector at the lens "center". The two inner elements form an integral pair and move with respect to the outer element to effect magnification change while maintaining a substantially flat image field over the entire magnification range. .

270136

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