JPS5943937U - Focal plane shutter camera - Google Patents
Focal plane shutter cameraInfo
- Publication number
- JPS5943937U JPS5943937U JP9605183U JP9605183U JPS5943937U JP S5943937 U JPS5943937 U JP S5943937U JP 9605183 U JP9605183 U JP 9605183U JP 9605183 U JP9605183 U JP 9605183U JP S5943937 U JPS5943937 U JP S5943937U
- Authority
- JP
- Japan
- Prior art keywords
- reflectance
- focal plane
- plane shutter
- film surface
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Shutters For Cameras (AREA)
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、フィルムおよびフォーカルプレーンシャッタ
ーの先幕からの反射光を測光するタイプの一眼レフレッ
クスカメラで撮影を行っている状 −態を示す平面
図、第２図ａは、光源が人工光の時の光源の相対分光エ
ネルギーを示す線図、ｂは光源が人工光の時の幕の分光
反射率を示す線図、Ｃは光源が自然光の時の光源の相対
分光エネルギーを示す線図、ｄは光源が自然光の時の幕
の分光反射率を示す線図、ｅは光源が人工光の時の光源
の相対分光エネルギーを示す線図、ｆは光源が人工光の
時のフィルムの分光反射率を示す線図、ｇは光源□が自
然光の時の光源の相対分光エネルギーを −示す線図
、ｈは光源が自然光の時のフィルムの分光反射率を示す
線図、第３図はＪＩＳに基く乱数表、第４図ａは先幕に
印刷する黒の量を示す線図、ｂは台紙の平面図、第５図
及び第６図は先幕のパターンを示す平面図である。
１・・・・・・フィルム、２・・・・・・フォーカルプ
レーンシャッタの先幕、３・・・・・・−眼レフカメラ
、４・・・・・・測光素子。Figure 1 is a plan view of a single-lens reflex camera that measures the light reflected from the film and the front curtain of the focal plane shutter. Figure 2a is a plan view showing that the light source is artificial light. A diagram showing the relative spectral energy of the light source when the light source is artificial light, B is a diagram showing the spectral reflectance of the curtain when the light source is artificial light, and C is a diagram showing the relative spectral energy of the light source when the light source is natural light. d is a diagram showing the spectral reflectance of the curtain when the light source is natural light, e is a diagram showing the relative spectral energy of the light source when the light source is artificial light, and f is the spectral reflection of the film when the light source is artificial light. g is a diagram showing the relative spectral energy of the light source when the light source is natural light, h is a diagram showing the spectral reflectance of the film when the light source is natural light, Figure 3 is based on JIS. FIG. 4A is a diagram showing the amount of black printed on the front curtain, FIG. 4B is a plan view of the mount, and FIGS. 5 and 6 are plan views showing the pattern of the front curtain. 1... film, 2... front curtain of focal plane shutter, 3...-eye reflex camera, 4... photometric element.
Claims (1)
幕もしくはフィルム面にて反射した被写体光を受光する
ことにより露出制御を行なわせるようにしたカメラにお
いて、 上記フォーカルプレーンシャッタの先幕を、フィルム面
の反射率より低い一定の反射率を有する無採色の部材で
形成するとともに、その反射面に上記フィルムの反射率
より高い一定の反射率を有する無採色の塗料により上記
先幕の走行方向とこれに直交する方向との双方に対して
不連続な状態で印刷塗装された多数の小区画部分を略全
画面にわたって形成し、全体としての反射率がフィルム
面と同程度となるように設定したことを特徴とするフォ
ーカルプレーンシャッタ式カメラ。[Scope of Claim for Utility Model Registration] In a camera that controls exposure by receiving subject light that passes through a photographic lens and is reflected on the front curtain or film surface of a focal plane shutter, The leading curtain is formed of an uncolored member having a constant reflectance lower than the reflectance of the film surface, and the reflective surface is made of an uncolored paint having a constant reflectance higher than the reflectance of the film. A large number of small sections printed and painted discontinuously in both the running direction of the leading curtain and the direction orthogonal thereto are formed over almost the entire screen, and the reflectance as a whole is the same as that of the film surface. A focal plane shutter type camera characterized by being set so that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9605183U JPS5943937U (en) | 1983-06-22 | 1983-06-22 | Focal plane shutter camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9605183U JPS5943937U (en) | 1983-06-22 | 1983-06-22 | Focal plane shutter camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5943937U true JPS5943937U (en) | 1984-03-23 |
Family
ID=30229089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9605183U Pending JPS5943937U (en) | 1983-06-22 | 1983-06-22 | Focal plane shutter camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943937U (en) |
-
1983
- 1983-06-22 JP JP9605183U patent/JPS5943937U/en active Pending
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