JPH0318521U

JPH0318521U -

Info

Publication number: JPH0318521U
Application number: JP7848589U
Authority: JP
Priority date: 1989-07-03
Filing date: 1989-07-03
Publication date: 1991-02-22

Description

[Brief explanation of the drawing]

第１図〜第４図は本考案の一実施例を示し、第
１図は本考案に係る焦点検出装置を示すカメラの
部分断面図、第２図および第３図はそれぞれ第１
図の−線および−線矢視図、第４図は焦
点検出ブロツクの調整方向を説明する説明図であ
る。第５図は従来の焦点検出装置を示すカメラの
部分断面図、第６図はその−線矢視図である
。２ａ……反射面、２１，２２，２３……ビス、
２６，２７……圧縮ばね、３１ａ……ガイド面、
１００………焦点検出ブロツク、１０５……反射
面、１０６……センサ保持部材、Ｌ……撮影レン
ズ。 1 to 4 show one embodiment of the present invention, FIG. 1 is a partial sectional view of a camera showing a focus detection device according to the present invention, and FIGS.
FIG. 4 is an explanatory diagram illustrating the adjustment direction of the focus detection block. FIG. 5 is a partial sectional view of a camera showing a conventional focus detection device, and FIG. 6 is a view taken along the - line. 2a... Reflective surface, 21, 22, 23... Screws,
26, 27... compression spring, 31a... guide surface,
100...Focus detection block, 105...Reflecting surface, 106...Sensor holding member, L...Photographing lens.

Claims

[Claims for Utility Model Registration] A first reflective surface that reflects subject light that has passed through the photographic lens in a first direction; A spherical surface that integrally holds a second reflective surface that reflects in a second direction and a focus detection element that receives light reflected by the second reflective surface, and that contacts the guide surface that extends in the first direction. a focus detection block slidable with respect to the guide surface; urging means for urging the focus detection block in the first direction via the guide surface; while adjusting the position in the first direction, of the focusing block;
adjusting a swing angle about a third direction perpendicular to the first direction, and of the focusing block;
An automatic focus detection device for a camera, comprising: an adjusting means for adjusting a swing angle about a fourth direction perpendicular to both the first direction and the third direction, respectively.