Compact high-range varifocal objectives

Details Compact high-range varifocal objectives Compact high-range varifocal objectives

1985-11-21

1991-10-08

Arnold, Bruce Y.

Optical: systems and elements

Lens

With graded refractive index

359683, G02B 1514

Patent

active

050548980

ABSTRACT:
A zoom lens comprising a plurality of lens units in which at least one of the air separations between the units is varied to effect zooming, whereby at least one of the plurality of lens units is included with at least one refractive index distribution type lens element on a common optical axis of the other elements.

REFERENCES:
patent: 3486808 (1969-12-01), Hamblen
patent: 4215914 (1980-08-01), Muchel et al.
patent: 4457590 (1984-07-01), Moore
patent: 4518228 (1985-05-01), Sugiura
patent: 4571032 (1986-02-01), Someya et al.
patent: 4582399 (1986-04-01), Mihara
patent: 4641928 (1987-02-01), Hamanishi
patent: 4776679 (1988-10-01), Kitagishi et al.
"Introduction to Classical and Modern Optics", J. R. Meyer-Arendt, pp. 362-365, 1984.
"Design of a Gradient-Index Photographic Objective", L. G. Atkinson et al, Applied Optics, vol. 21, No. 6, Mar. 15, 1982, pp. 993-998.
"Gradient-index Wide-angle Photographic Objective Design", L. G. Atkinson et al., Applied Optics, vol. 23, Noll, Jun. 1, 1984, pp. 1735-1741.

Affiliated with

Also associated with

Rating

Compact high-range varifocal objectives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact high-range varifocal objectives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact high-range varifocal objectives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-253819