Lens barrel with peripheral parts of first and second lenses in

Details Lens barrel with peripheral parts of first and second lenses in Lens barrel with peripheral parts of first and second lenses in

1996-02-06

1998-08-25

Epps, Georgia Y.

Optical: systems and elements

Lens

With support

G02B 0702

Patent

active

057988765

ABSTRACT:
In a lens barrel including a first lens and a second lens, respective peripheral parts of the first lens and the second lens are in contact with each other while respective central parts of the first lens and the second lens are distant from each other. Each of the peripheral parts of the first lens and the second lens has a curved surface, and the respective curved surfaces substantially coincide with each other.

REFERENCES:
patent: 3784287 (1974-01-01), Grey
patent: 3904276 (1975-09-01), Whitaker
patent: 4258982 (1981-03-01), Skinner
patent: 4303306 (1981-12-01), Ookawa
patent: 4488776 (1984-12-01), Skinner
patent: 4662717 (1987-05-01), Yamada
patent: 4886342 (1989-12-01), Kudo
patent: 5052782 (1991-10-01), Myer
patent: 5161061 (1992-11-01), Ihara
patent: 5177641 (1993-01-01), Kobayashi
patent: 5353166 (1994-10-01), Hanford
patent: 5483383 (1996-01-01), Uziie
patent: 5557474 (1996-09-01), McCrary
patent: 5612826 (1997-03-01), Oshita
Robert E. Hopkins, "Lens Mounting and Centering", Applied Optics and Optical Engineering, vol. III, pp. 35-36. 1980.

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