JPS58103026U - Received light amount conversion mechanism for dual focal length camera - Google Patents
Received light amount conversion mechanism for dual focal length cameraInfo
- Publication number
- JPS58103026U JPS58103026U JP19569581U JP19569581U JPS58103026U JP S58103026 U JPS58103026 U JP S58103026U JP 19569581 U JP19569581 U JP 19569581U JP 19569581 U JP19569581 U JP 19569581U JP S58103026 U JPS58103026 U JP S58103026U
- Authority
- JP
- Japan
- Prior art keywords
- light receiving
- length camera
- focal length
- received light
- lens
- 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
- Exposure Control For Cameras (AREA)
- Viewfinders (AREA)
- Lenses (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案装置を有するカメラの例を示す外観正面
図、第２図は同上カメラのレンズ鏡胴部 、の
縦断側面図、第３図は上記カメラの補助レンズ挿脱機構
部の側面図、第４図は同上補助レンズ挿脱機構部の一部
破截背面図、第５図は本考案の実施例を示す一部破截正
面図、第６図は同上平面図、第７図は上記実施例中の一
部分を示す斜視図である。
Ｌｌ、 Ｌ２． Ｌ３・・・・・・距離調節レンズ系、
Ｌ４． Ｉ’５１Ｌ、、 Ｌ７・・・・・・補助レンズ
系、３７・・・・・・受光素子、３８・・・・・・レバ
ー、４０・・・・・・受光量変換部材兼受光角変換用補
助レンズ、４３・・・・・・レバー、４４・・・・・・
移動検知板、４５・・・・・・ばね。
形Ｙ 月Fig. 1 is an external front view showing an example of a camera having the device of the present invention, Fig. 2 is a longitudinal cross-sectional side view of the lens barrel of the same camera, and Fig. 3 is a side view of the auxiliary lens insertion/removal mechanism of the above camera. Fig. 4 is a partially cutaway rear view of the auxiliary lens insertion/removal mechanism section, Fig. 5 is a partially cutaway front view showing an embodiment of the present invention, Fig. 6 is a plan view of the same, and Fig. 7. FIG. 2 is a perspective view showing a part of the above embodiment. Ll, L2. L3... Distance adjustment lens system,
L4. I'51L,, L7... Auxiliary lens system, 37... Light receiving element, 38... Lever, 40... Light receiving amount conversion member and light receiving angle conversion member. Auxiliary lens, 43...Lever, 44...
Movement detection plate, 45... Spring. Shape Y Moon
Claims (1)
させることにより、撮影レンズ系を短焦点域と長焦点域
とに切り換えて使用する２焦点距離カメナにおいて、露
出制御装置の受光素子の前方に、撮影レンズが短焦点域
にあるときと長焦点域にあるときの口径比の差に該当す
る受光量変換部材と受光角変換用補助レンズとを、上記
距離調節レンズの進退に応動して挿脱可能に設けたこと
を特徴とする受光量変換機構。 ２ 受光量変換部材は、ＮＣフィルタでなる実用新案登
録請求の範囲第１項記載の２焦点距離カメナの受光量変
換機構。 ３ 受光量変換部材は、減光特性を有する多条スリット
板である実用新案登録請求の範囲第１項記載の２焦点距
離カメラの受光量変換機構。 ４ 受光量変換部材と受光角変換用補助レンズは、一体
成形きれた実用新案登録請求の範囲第１項記載の２焦点
距離カメラの受光量変換機構。[Scope of Claim for Utility Model Registration] 1. In a bifocal length camera that is used by switching the photographic lens system between a short focus range and a long focus range by inserting and removing an auxiliary lens in response to the advance and retreat of the distance adjustment lens, In front of the light receiving element of the exposure control device, a received light amount conversion member and an auxiliary lens for light receiving angle conversion corresponding to the difference in aperture ratio between when the photographing lens is in the short focus area and in the long focus area are placed at the above distance. A received light amount conversion mechanism characterized by being provided so that it can be inserted and removed in response to the advance and retreat of an adjustment lens. 2. The light receiving amount converting mechanism for a dual focal length camera according to claim 1, wherein the received light amount converting member is an NC filter. 3. The light receiving amount converting mechanism for a dual focal length camera according to claim 1, wherein the received light amount converting member is a multi-slit plate having light attenuation characteristics. 4. The light receiving amount converting mechanism for a dual focal length camera according to claim 1, wherein the light receiving amount converting member and the light receiving angle converting auxiliary lens are integrally molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19569581U JPS58103026U (en) | 1981-12-29 | 1981-12-29 | Received light amount conversion mechanism for dual focal length camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19569581U JPS58103026U (en) | 1981-12-29 | 1981-12-29 | Received light amount conversion mechanism for dual focal length camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58103026U true JPS58103026U (en) | 1983-07-13 |
Family
ID=30108961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19569581U Pending JPS58103026U (en) | 1981-12-29 | 1981-12-29 | Received light amount conversion mechanism for dual focal length camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58103026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021153300A1 (en) * | 2020-01-31 | 2021-08-05 | ソニーセミコンダクタソリューションズ株式会社 | Imaging device, camera module, electronic apparatus, and imaging system |
-
1981
- 1981-12-29 JP JP19569581U patent/JPS58103026U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021153300A1 (en) * | 2020-01-31 | 2021-08-05 | ソニーセミコンダクタソリューションズ株式会社 | Imaging device, camera module, electronic apparatus, and imaging system |
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