Optical: systems and elements – Lens – Multiple component lenses
Patent
1993-06-08
1995-01-17
Sugarman, Scott J.
Optical: systems and elements
Lens
Multiple component lenses
359755, G02B 964
Patent
active
053830598
ABSTRACT:
An nonvariable transverse magnification focussing method and lens system for maintaining a transverse magnification at a fixed value even when the movement distance of each lens group is quite small by moving the basis of the first lens group and the second lens group while maintaining the relationship therebetween with a suitable paraxial arrangement in accordance with specific principles.
REFERENCES:
patent: 4929066 (1990-05-01), Wakimoto et al.
Minolta Co. , Ltd.
Sugarman Scott J.
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