JPH03112733U

JPH03112733U -

Info

Publication number: JPH03112733U
Application number: JP1888490U
Authority: JP
Priority date: 1990-02-28
Filing date: 1990-02-28
Publication date: 1991-11-18

Description

[Brief explanation of the drawing]

第１図は本考案のストロボ内蔵カメラの概略を
説明するための説明図、第２図は撮影距離と焦点
距離とによる撮影領域を示す説明図、第３図ａ，
ｂはプリント状態を示す説明図、第４図は本考案
の第１実施例における撮影距離と焦点距離とによ
る撮影領域を示す説明図、第５図は本考案の第２
実施例における撮影距離と焦点距離とによる撮影
領域を示す説明図、第６図は第２実施例の制御系
を示すブロツク図である。１……カメラ本体、２……レンズ体、３……ス
トロボ、３ａ……発光中心、４……被写体、５…
…フイルム、１０……ＣＰＵ、１１……制御手段
、１２……演算手段、１３，１４，１５……出力
部、１６……ストロボ駆動部、１７……焦点距離
変更手段、１８……スイツチ、ｄ……発光中心と
レンズ体の光軸との間隔距離、ｆ……焦点距離、
ｌ……レンズ体と被写体との距離（撮影距離）、
Ｋ……像倍率、θ……発光中心とレンズの光軸に
より形成される角度。 Fig. 1 is an explanatory diagram for explaining the outline of the camera with a built-in strobe of the present invention, Fig. 2 is an explanatory diagram showing the photographing area according to the photographing distance and focal length, and Figs.
b is an explanatory diagram showing the printing state, FIG. 4 is an explanatory diagram showing the photographing area according to the photographing distance and focal length in the first embodiment of the present invention, and FIG.
FIG. 6 is an explanatory diagram showing the photographing area according to the photographing distance and focal length in the embodiment. FIG. 6 is a block diagram showing the control system of the second embodiment. 1...Camera body, 2...Lens body, 3...Strobe, 3a...Light emission center, 4...Subject, 5...
... Film, 10 ... CPU, 11 ... Control means, 12 ... Calculation means, 13, 14, 15 ... Output section, 16 ... Strobe drive section, 17 ... Focal length changing means, 18 ... Switch, d... Distance between the emission center and the optical axis of the lens body, f... Focal length,
l...Distance between the lens body and the subject (shooting distance),
K: Image magnification, θ: Angle formed by the emission center and the optical axis of the lens.

Claims

[Claims for Utility Model Registration] (1) A strobe with a focal length of f ₁ to f ₂ (f In a camera with a built-in strobe, which is equipped with a lens body that can change up to ₁ ≦ _f2 ), the distance between the light emission center of the strobe and the optical axis of the lens body is d, and the distance between the light emission center of the strobe and the lens body relative to the subject is d. A camera with a built-in strobe, characterized in that the following conditional expression d>f ₂ ×tan θK is satisfied, where θ is a prescribed angle formed by an optical axis, and K is a prescribed image magnification of a subject to be photographed on a film surface. . (2) A strobe with a focal length of f ₁ to f ₂ (f In a camera with a built-in strobe, which is equipped with a lens body that can change up to ₁ ≦ _f2 ), the distance between the light emission center of the strobe and the optical axis of the lens body is d, and the distance between the light emission center of the strobe and the lens body relative to the subject is d. The prescribed angle formed by the optical axis is θ, the prescribed image magnification of the subject to be photographed on the film surface is K, the following conditional expression d>f ₁ ×tan θK is satisfied, and the distance to the subject is l , a built-in strobe characterized by being provided with a control means that enables photographing at a focal length f that satisfies the following conditional expressions: l>dtanθ, f<K×l, where f is an arbitrary focal length of the lens body. camera. (3) Use a film with a screen size of 24 mm x 36 mm, set the angle θ formed by the light emission center of the strobe and the optical axis of the lens body to the subject to be 1.5°≦θ≦3°, and then The camera with a built-in strobe according to claim 1 or 2, wherein the image magnification K of the subject to be photographed on the surface is set to 0.015≦K≦0.019.