JPH0390235U

JPH0390235U -

Info

Publication number: JPH0390235U
Application number: JP15248189U
Authority: JP
Priority date: 1989-12-28
Filing date: 1989-12-28
Publication date: 1991-09-13

Description

[Brief explanation of drawings]

第１図は本考案を実施した、アタツチメントレ
ンズをカメラ本体に装着する場合の構成図、第２
図は撮影画面に対する測距位置を示した図、第３
図は多点測距装置の構成図、第４図はテレコンバ
ータを装着した時の画角の変化を表わした図、第
５図は第１図におけるＡＦ装置、及びマイコンと
の接続を表わしたブロツク図、第６図は本考案の
第１の実施を表わすフローチヤート、第７図は同
第２の実施を表わすフローチヤートである。１はカメラ本体、２はテレコンバータレンズ、
３は装着・非装着検出スイツチ、４はマイコン、
５は多点測距装置である。 Figure 1 is a configuration diagram of the attachment lens mounted on the camera body, in which the present invention has been implemented;
The figure shows the distance measurement position relative to the shooting screen.
The figure shows the configuration of the multi-point distance measuring device, Figure 4 shows the change in the angle of view when a teleconverter is attached, and Figure 5 shows the AF device in Figure 1 and the connection with the microcomputer. The block diagram, FIG. 6 is a flowchart representing a first implementation of the present invention, and FIG. 7 is a flowchart representing a second implementation of the invention. 1 is the camera body, 2 is the teleconverter lens,
3 is a mounting/non-wearing detection switch, 4 is a microcomputer,
5 is a multi-point distance measuring device.

Claims

[Scope of Claim for Utility Model Registration] (1) In an automatic focusing device capable of measuring a plurality of distance measuring points within a photographic screen, a lens means attached to the camera body and capable of varying the photographing magnification of a photographing lens; a detection means for detecting attachment/non-attachment of the lens means; and a measuring means for measuring distance at only some of the plurality of distance measurement points in the photographing screen in response to the output of the detection means. An automatic focus adjustment device comprising: a distance means; (2) In an automatic focus adjustment device capable of measuring a plurality of distance measuring points within a photographic screen, a lens means attached to the camera body and capable of varying the photographing magnification of a photographing lens, and attachment/non-attachment of the lens means; and a ranging means for measuring all of the plurality of ranging points in response to the output of the detecting means, and validating only ranging signals from some of the ranging points. An automatic focus adjustment device characterized by comprising: