JPS6370542U - - Google Patents
Info
- Publication number
- JPS6370542U JPS6370542U JP16358886U JP16358886U JPS6370542U JP S6370542 U JPS6370542 U JP S6370542U JP 16358886 U JP16358886 U JP 16358886U JP 16358886 U JP16358886 U JP 16358886U JP S6370542 U JPS6370542 U JP S6370542U
- Authority
- JP
- Japan
- Prior art keywords
- finder
- reflected
- light beam
- light
- screen
- 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
- 230000011514 reflex Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000000007 visual effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Viewfinders (AREA)
- Optical Elements Other Than Lenses (AREA)
- Cameras In General (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Description
第１図は、本考案に係る一眼レフレツクスカメ
ラのフアインダ装置の第１の実施例の断面図、第
２図は、同実施例の斜視図、第３図は、同実施例
のフアインダ観察像の一例を示す線図、第４図は
、本考案の第２の実施例を示す断面図、第５図は
、第４図中に示される小プリズムの拡大斜視図、
第６図は、本考案の第３の実施例を示す側面図、
第７図は、第６図中に示される小プリズムの拡大
斜視図である。
１０……フアインダスクリーン、２０……フア
インダプリズム、２１……第１の面、２２……第
２の面、２３……第３の面、２３ａ，２３ｂ……
ダハ面、２４……第４の面、２５……第５の面、
２６，２６′，２７……カツト面、３０……接眼
レンズ、４０……フアインダ表示素子、４１……
結像レンズ、５０，７０……小プリズム、６０…
…反射ミラー、７４……反射面。
FIG. 1 is a cross-sectional view of a first embodiment of the finder device for a single-lens reflex camera according to the present invention, FIG. 2 is a perspective view of the same embodiment, and FIG. 3 is an observation of the finder of the same embodiment. A line diagram showing an example of an image, FIG. 4 is a sectional view showing a second embodiment of the present invention, FIG. 5 is an enlarged perspective view of the small prism shown in FIG. 4,
FIG. 6 is a side view showing a third embodiment of the present invention;
FIG. 7 is an enlarged perspective view of the small prism shown in FIG. 6. 10...Finder screen, 20...Finder prism, 21...First surface, 22...Second surface, 23...Third surface, 23a, 23b...
Roof surface, 24...4th surface, 25...5th surface,
26, 26', 27... cut surface, 30... eyepiece, 40... viewfinder display element, 41...
Imaging lens, 50, 70...Small prism, 60...
...Reflection mirror, 74...Reflection surface.
Claims (1)
アインダスクリーンを介して入射する視野光束を
透過させる第１の面と、この第１の面を透過した
光束を前方斜め下方に向けて反射し、その反射光
が上記第１の面に再入射されて全反射するような
角度に設定された第２の面と、この第２の面で反
射し、さらに上記第１の面で全反射した光束を後
方斜め下方に向けて且つ左右を反転して反射し、
その反射光が上記第１の面に入射されて全反射す
るような角度に設定された第３の面と、この第３
の面で反射しさらに上記第１の面で全反射した光
束を後方に配置された接眼レンズ側に射出する第
４の面と、上記第３の面の上縁部と上記第２の面
の前縁部の間に形成され、上記第３の面を反射す
る視野光束に沿つてフアインダ内表示光束を入射
する第５の面とを有するプリズムと、この第５の
面の前方または第３の面の前方に配設されたフア
インダ内表示部材と、このフアインダ内表示部材
より発せられたフアインダ内表示光束を上記第５
の面に導き入射させる光学部材とを具備すること
を特徴とする一眼レフレツクスカメラのフアイン
ダ装置。 A first surface disposed above the finder screen that transmits the visual field light beam incident through the finder screen; a second surface set at an angle such that the light re-enters the first surface and is totally reflected; Reflected diagonally downward and with the left and right sides reversed,
a third surface set at an angle such that the reflected light is incident on the first surface and totally reflected;
a fourth surface that emits the light beam reflected by the surface and totally reflected by the first surface toward the eyepiece lens disposed at the rear; and an upper edge of the third surface and the second surface. a prism having a fifth surface formed between the front edge portions and into which the display light beam in the viewfinder is incident along the field light beam reflecting the third surface; An in-finder display member disposed in front of the screen and an in-finder display light flux emitted from this in-finder display member are
1. A finder device for a single-lens reflex camera, comprising: an optical member that guides light onto a surface of the camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16358886U JPS6370542U (en) | 1986-10-27 | 1986-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16358886U JPS6370542U (en) | 1986-10-27 | 1986-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6370542U true JPS6370542U (en) | 1988-05-12 |
Family
ID=31091922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16358886U Pending JPS6370542U (en) | 1986-10-27 | 1986-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6370542U (en) |
-
1986
- 1986-10-27 JP JP16358886U patent/JPS6370542U/ja active Pending
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