JPH0157729U - - Google Patents
Info
- Publication number
- JPH0157729U JPH0157729U JP15296687U JP15296687U JPH0157729U JP H0157729 U JPH0157729 U JP H0157729U JP 15296687 U JP15296687 U JP 15296687U JP 15296687 U JP15296687 U JP 15296687U JP H0157729 U JPH0157729 U JP H0157729U
- Authority
- JP
- Japan
- Prior art keywords
- pentaprism
- light
- optical path
- field
- finder
- 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
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000011514 reflex Effects 0.000 claims 1
- 230000000007 visual effect Effects 0.000 claims 1
Landscapes
- Indication In Cameras, And Counting Of Exposures (AREA)
- Viewfinders (AREA)
Description
第１図は本考案の第１実施例のフアインダー側
面図、第２図は同実施例によるフアインダー視野
の図、第３図は本考案の第２実施例のフアインダ
ー側面図、第４図は第３実施例の要部側面図、第
５図は従来例の一つの正面図である。
１……ペンタプリズム、２……焦点板、３……
フアインダー接眼レンズ、５……鏡、６，７，９
，１１，１３……プリズム、８……ＬＣＤ、１２
……ＬＥＤチツプ、Ｆ１……被写界光入射面、Ｆ
２……被写界光出射面、Ｆ３……ダハ面、Ｆ４…
…被写界光出射面の対向面、Ｆ５……面Ｆ４の上
に続くフアインダー光路を構成していない面。
Fig. 1 is a side view of the finder according to the first embodiment of the present invention, Fig. 2 is a view of the viewfinder field of view according to the same embodiment, Fig. 3 is a side view of the finder of the second embodiment of the present invention, and Fig. 4 is a view of the finder field of view according to the same embodiment. FIG. 5 is a front view of one of the conventional examples. 1... Pentaprism, 2... Focus plate, 3...
Viewfinder eyepiece, 5...Mirror, 6, 7, 9
, 11, 13... Prism, 8... LCD, 12
...LED chip, F1...Field light incidence surface, F
2... Field light exit surface, F3... Roof surface, F4...
...A surface opposite to the field light exit surface, F5...A surface that does not constitute a finder optical path continuing above surface F4.
Claims (1)
ペンタプリズムのフアインダー光路を構成する反
射面以外の面或は上記反射面においてフアインダ
ー視野を形成する有効光路領域外の部分に撮影レ
ンズを通らない外光を入射させる導光手段と、こ
の導光手段によつてペンタプリズム内に導入され
ペンタプリズムのフアインダー光路を構成する反
射面以外の面或は上記反射面においてフアインダ
ー視野を形成する有効光路領域外の部分で上記外
光のペンタプリズムへの入射部分とは異る部分か
ら出射せしめられる上記外光を、ペンタプリズム
の被写界光入射面でフアインダー視野枠外に対応
する部分から、ペンタプリズムを通して見たフア
インダー接眼レンズに向けて入射させる光路を形
成する導光手段とを設け、この導光手段によつて
形成させる光路内に透過型表示板を介在させてな
るカメラのフアインダー内表示装置。 (2) ペンタプリズムに導入されペンタプリズム
から出射せしめられ、透過型表示板を透過して再
びペンタプリズムの被写界光入射面に入射せしめ
られる外光の上記ペンタプリズムへの再入射位置
を同ペンタプリズムの被写界光入射面と同出射面
との交わりの稜線に近接した位置にした実用新案
登録請求の範囲第１項記載のカメラのフアインダ
ー内表示装置。[Scope of Claim for Utility Model Registration] (1) A surface other than the reflective surface that constitutes the finder optical path of a pentaprism for the finder of a single-lens reflex camera, or a portion of the reflective surface that is outside the effective optical path area that forms the finder field of view. A light guide means for inputting external light that does not pass through the photographic lens, and a light guide means that is introduced into the pentagonal prism by the light guide means, and a finder field of view is formed on a surface other than the reflective surface constituting the finder optical path of the pentagonal prism or on the above reflective surface. A portion of the field light incident surface of the pentaprism that corresponds to the outside of the viewfinder visual field frame allows the external light to be emitted from a portion outside the effective optical path region to be formed and is different from the portion where the outside light enters the pentaprism. A camera viewfinder is provided with a light guiding means for forming an optical path to be incident on the viewfinder eyepiece viewed through a pentaprism, and a transmissive display plate is interposed in the optical path formed by the light guiding means. Internal display device. (2) The position of re-incidence of external light into the pentaprism, which is introduced into the pentaprism, exits from the pentaprism, passes through the transmissive display plate, and enters the field light incident surface of the pentaprism again, is the same. The display device in the viewfinder of a camera according to claim 1, which is located close to the ridgeline of the intersection of the field light entrance surface and the field light exit surface of a pentaprism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15296687U JPH0157729U (en) | 1987-10-06 | 1987-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15296687U JPH0157729U (en) | 1987-10-06 | 1987-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0157729U true JPH0157729U (en) | 1989-04-11 |
Family
ID=31428375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15296687U Pending JPH0157729U (en) | 1987-10-06 | 1987-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0157729U (en) |
-
1987
- 1987-10-06 JP JP15296687U patent/JPH0157729U/ja active Pending
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