JPH0453210U - - Google Patents
Info
- Publication number
- JPH0453210U JPH0453210U JP1990094523U JP9452390U JPH0453210U JP H0453210 U JPH0453210 U JP H0453210U JP 1990094523 U JP1990094523 U JP 1990094523U JP 9452390 U JP9452390 U JP 9452390U JP H0453210 U JPH0453210 U JP H0453210U
- Authority
- JP
- Japan
- Prior art keywords
- support
- recess
- protrusion
- lens
- prism sheet
- 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.)
- Granted
Links
Landscapes
- Exposure Control For Cameras (AREA)
- Lens Barrels (AREA)
Description
第１Ａ，１Ｂ図は本考案によるプリズムシート
の測光レンズ支持装置の実施例を示す、要部の分
解斜視図と組立状態の斜視図、第２Ａ，２Ｂおよ
び２Ｃ図は測光レンズの平面図（第２Ｃ図の２Ａ
矢視図）、正面図および側面図、第３Ａ，３Ｂお
よび３Ｃ図はプリズムシートの測光レンズ支持部
の平面図、正面図および背面図、第４図はプリズ
ムシートとこれに支持された測光レンズを含むフ
アインダ光学系の断面図、第５図は第４図の−
線に沿う断面図である。
１１……空洞式ペンタミラー本体、１２……ク
イツクリターンミラー、１３……ピント板、１４
……撮影レンズ、１６……接眼レンズ、１１ｒ…
…ダハ反射面、１５ｒ……第三反射面、２０……
フリズムシート、２５……測光レンズ支持部、２
５ａ……穴部、２５ｂ……後壁、２５ｃ……支持
溝、２５ｄ……前壁、２５ｅ……スリツト、２５
ｆ……弾性壁、２６……溝（凹部）、３０……測
光レンズ、３１……レンズ部、３２……支持脚、
３３……突起、３３ａ……傾斜面、３３ｄ……直
角係止面。
Figures 1A and 1B are exploded perspective views of essential parts and assembled state views showing an embodiment of the prism sheet photometric lens support device according to the present invention, and Figures 2A, 2B, and 2C are plan views of the photometric lens (Fig. 2A in diagram 2C
3A, 3B, and 3C are plan views, front views, and rear views of the photometric lens support portion of the prism sheet, and FIG. 4 is the prism sheet and the photometric lens supported by it. 5 is a cross-sectional view of the finder optical system including -
It is a sectional view along a line. 11... Hollow pentamirror body, 12... Quick return mirror, 13... Focusing plate, 14
...Photographing lens, 16...Eyepiece lens, 11r...
...Dach reflective surface, 15r...Third reflective surface, 20...
Frism sheet, 25...photometering lens support section, 2
5a...hole, 25b...rear wall, 25c...support groove, 25d...front wall, 25e...slit, 25
f...Elastic wall, 26...Groove (recess), 30...Photometric lens, 31...Lens portion, 32...Support leg,
33... Protrusion, 33a... Inclined surface, 33d... Right angle locking surface.
Claims (1)
持するプリズムシートに、被写体の明るさを測定
するための測光レンズを支持する装置において、 上記プリズムシートおよび測光レンズを合成樹
脂材料から構成し、 この測光レンズの左右にそれぞれ支持脚を一体
に形成するとともに、これらの支持脚に、該支持
脚の厚さ方向に向く位置決め用の突起または凹部
を設け、 上記プリズムシートに、この測光レンズの左右
の支持脚を挿入支持する、少なくともその一部が
上記支持脚の厚さ方向に弾性変形可能な弾性壁か
らなる支持溝と、この支持溝内壁に形成した、上
記位置決め用の突起または凹部が嵌合する凹部ま
たは突起とを設け、 かつ上記支持脚の突起または凹部、支持溝の弾
性壁およびその凹部または突起は、上記突起また
は凹部と凹部または突起が嵌合する前には、上記
弾性壁が弾性変形して上記支持脚の支持溝への挿
入を可能とし、嵌合後は、該弾性壁が両者の嵌合
関係を維持して支持脚の支持溝からの脱落を防止
することを特徴とするプリズムシートの測光レン
ズ支持装置。[Scope of Claim for Utility Model Registration] A device in which a photometric lens for measuring the brightness of an object is supported on a prism sheet that supports a hollow pentamirror or a pentaprism, wherein the prism sheet and the photometric lens are made of synthetic resin material. Support legs are integrally formed on the left and right sides of the photometric lens, and these support legs are provided with positioning projections or recesses facing in the thickness direction of the support legs, and the photometry lens is attached to the prism sheet. a support groove for inserting and supporting the left and right support legs of the lens, at least a part of which is made of an elastic wall that is elastically deformable in the thickness direction of the support legs; and the positioning protrusion formed on the inner wall of the support groove; A recess or protrusion into which the recess fits is provided, and the protrusion or recess of the support leg, the elastic wall of the support groove, and the recess or protrusion fit into the recess or protrusion, and the recess or protrusion fits into the recess or protrusion, and The elastic wall elastically deforms to enable the support leg to be inserted into the support groove, and after fitting, the elastic wall maintains the fitting relationship between the two to prevent the support leg from falling off from the support groove. A photometric lens support device using a prism sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990094523U JP2549179Y2 (en) | 1990-09-07 | 1990-09-07 | Photometric lens support device for prism sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990094523U JP2549179Y2 (en) | 1990-09-07 | 1990-09-07 | Photometric lens support device for prism sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0453210U true JPH0453210U (en) | 1992-05-07 |
| JP2549179Y2 JP2549179Y2 (en) | 1997-09-30 |
Family
ID=31832546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990094523U Expired - Fee Related JP2549179Y2 (en) | 1990-09-07 | 1990-09-07 | Photometric lens support device for prism sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2549179Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006276168A (en) * | 2005-03-28 | 2006-10-12 | Mitsubishi Electric Corp | Imaging device and prism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157603A (en) * | 1983-02-28 | 1984-09-07 | Canon Inc | Lens holding structure |
| JPS60140014U (en) * | 1984-02-23 | 1985-09-17 | 株式会社リコー | camera viewfinder device |
-
1990
- 1990-09-07 JP JP1990094523U patent/JP2549179Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157603A (en) * | 1983-02-28 | 1984-09-07 | Canon Inc | Lens holding structure |
| JPS60140014U (en) * | 1984-02-23 | 1985-09-17 | 株式会社リコー | camera viewfinder device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006276168A (en) * | 2005-03-28 | 2006-10-12 | Mitsubishi Electric Corp | Imaging device and prism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2549179Y2 (en) | 1997-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |