JPS59123806U

JPS59123806U - resin lens assembly

Info

Publication number: JPS59123806U
Application number: JP1890683U
Authority: JP
Inventors: 稲川　辰男
Original assignee: 株式会社日出
Priority date: 1983-02-10
Filing date: 1983-02-10
Publication date: 1984-08-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案による樹脂レンズ組立の実施例を示す組
立図である。第２図は最前部のレンズの一部断面図であ
る。第３図は第１の中間レンズの一部断面図である。第
４図は第２の中間レンズの一部断面図である。第５図は
第３の中間レンズの一部断面図である。第６図は最後部
のレンズの一部断面図である。１・・・・・・１１前部のレンズ、２・・・・・・第１
の中間レンズ、３・・・・・・第２の中間レンズ、４・
・・−・・・第３の中間レンズ、５・・・・・・最後部
のレンズ、６・・・・・・内筒、７・・・・・・外筒、
８・・・・・・接着剤。FIG. 1 is an assembly diagram showing an embodiment of a resin lens assembly according to the present invention. FIG. 2 is a partial cross-sectional view of the frontmost lens. FIG. 3 is a partial cross-sectional view of the first intermediate lens. FIG. 4 is a partial cross-sectional view of the second intermediate lens. FIG. 5 is a partial cross-sectional view of the third intermediate lens. FIG. 6 is a partial sectional view of the rearmost lens. 1...11 front lens, 2...1st
intermediate lens, 3... Second intermediate lens, 4.
..... Third intermediate lens, 5 ..... Last lens, 6 ..... Inner cylinder, 7 ..... Outer cylinder,
8...Adhesive.

Claims

[Scope of utility model registration request]

(1) A cylindrical opaque inner cylinder made of resin with an opening centered on the optical axis on the bottom, a cylindrical opaque outer cylinder made of resin with an opening centered on the optical axis on the bottom, a lens part formed in the center, and a peripheral edge. The frontmost lens is made of transparent resin and is an annular part defined by the first and second surfaces perpendicular to the optical axis of the lens, and the lens part is formed in the center, and the peripheral part is perpendicular to the optical axis of the lens. a rearmost lens made of transparent resin which is an annular portion defined by vertical first and second surfaces, and a first and second lens having a lens portion formed in the center and whose peripheral portions are perpendicular to the optical axis of the lens. an annular portion defined by a surface, including one or more intermediate lenses made of transparent resin inserted between the rearmost lens and the frontmost lens, the rearmost lens in the inner cylinder; Insert one or more intermediate lenses and the frontmost lens in this order, ensure an air gap between the lens loops with the annular portions of each lens, cover the inner tube with the outer tube, and close the annular portion of each lens. A resin lens assembly constructed by sandwiching and fixing a portion between the bottom surfaces of the inner tube and the outer tube.

(2) The resin lens assembly according to claim 1, wherein the cylindrical inner tube and the cylindrical outer tube are fixed by adhesive.

(3) The resin lens assembly according to claim 1, wherein a screw for fixing the lens assembly to a camera body or the like is provided on the outer periphery of the outer cylinder.