JPH0335530U - - Google Patents
Info
- Publication number
- JPH0335530U JPH0335530U JP1989096132U JP9613289U JPH0335530U JP H0335530 U JPH0335530 U JP H0335530U JP 1989096132 U JP1989096132 U JP 1989096132U JP 9613289 U JP9613289 U JP 9613289U JP H0335530 U JPH0335530 U JP H0335530U
- Authority
- JP
- Japan
- Prior art keywords
- receiving element
- divided light
- element group
- photometric
- angle
- 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
- 238000005375 photometry Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exposure Control For Cameras (AREA)
Description
第１図、第２図、第３図は、それぞれ本考案の
測光装置に用いる測光素子の分割態様の例を示す
平面図である。第４図は第１〜３図の測光素子を
用いた露出制御回路を示すブロツク図、第５図は
ズームレンズと測光素子を有する可変焦点カメラ
の正面図である。
１０…可変焦点カメラ、１１…ズーム撮影レン
ズ、１２…測光素子、１２Ａ…環状分割受光素子
群、１２Ｂ…矩形枠状分割測光素子群、１２Ｃ…
マトリツクス状分割測光素子群、１４…測光制御
回路、１６…受光素子選択回路、１８…露出制御
回路。
FIG. 1, FIG. 2, and FIG. 3 are plan views each showing an example of how the photometric element used in the photometric device of the present invention is divided. FIG. 4 is a block diagram showing an exposure control circuit using the photometric elements shown in FIGS. 1 to 3, and FIG. 5 is a front view of a variable focus camera having a zoom lens and a photometric element. DESCRIPTION OF SYMBOLS 10... Variable focus camera, 11... Zoom photographing lens, 12... Photometric element, 12A... Annular divided light receiving element group, 12B... Rectangular frame-shaped divided photometric element group, 12C...
Matrix-shaped divided photometric element group, 14...photometry control circuit, 16...light receiving element selection circuit, 18...exposure control circuit.
Claims (1)
を有する可変焦点カメラにおいて、 測光素子を、撮影レンズの画角の大小に対応す
る態様で複数に分割した分割受光素子群から構成
し、 撮影レンズの焦点距離に応じ、該撮影レンズの
画角に対応する範囲内の分割受光素子群の出力を
測光データとして用いることを特徴とする可変焦
点カメラの測光装置。 (2) 請求項１において、分割受光素子群は、同
心円状の環状分割受光素子群からなつている測光
装置。 (3) 請求項１において、分割受光素子群は、画
角とほぼ相似形で同心の矩形枠体状分割受光素子
群からなつている測光装置。 (4) 請求項１において、分割受光素子群は、縦
横に整列したマトリツクス状分割受光素子群から
なつている測光装置。 (5) 請求項１ないし４いずれか１項において、
分割受光素子群は、撮影レンズの各画角に対応す
る範囲内に、複数が存在し、それぞれが個別の測
光信号を出力する測光装置。[Scope of Claim for Utility Model Registration] (1) In a variable focus camera having a variable focal length photographing lens and a photometric element, the photometric element is divided into multiple parts in a manner corresponding to the size of the angle of view of the photographic lens. 1. A photometry device for a variable-focus camera, comprising a group of light-receiving elements, and using the output of the divided light-receiving element group within a range corresponding to the angle of view of the photographing lens as photometric data according to the focal length of the photographing lens. (2) The photometric device according to claim 1, wherein the divided light-receiving element group is composed of a concentric annular divided light-receiving element group. (3) The photometric device according to claim 1, wherein the divided light receiving element group is composed of a rectangular frame-shaped divided light receiving element group that is substantially similar to the angle of view and concentric. (4) The photometric device according to claim 1, wherein the divided light-receiving element group is comprised of a matrix-shaped divided light-receiving element group arranged vertically and horizontally. (5) In any one of claims 1 to 4,
A photometry device includes a plurality of divided light-receiving element groups within a range corresponding to each angle of view of the photographic lens, each of which outputs an individual photometry signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989096132U JPH0335530U (en) | 1989-08-17 | 1989-08-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989096132U JPH0335530U (en) | 1989-08-17 | 1989-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0335530U true JPH0335530U (en) | 1991-04-08 |
Family
ID=31645354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989096132U Pending JPH0335530U (en) | 1989-08-17 | 1989-08-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0335530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007116437A (en) * | 2005-10-20 | 2007-05-10 | Nikon Corp | Imaging device and imaging system |
-
1989
- 1989-08-17 JP JP1989096132U patent/JPH0335530U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007116437A (en) * | 2005-10-20 | 2007-05-10 | Nikon Corp | Imaging device and imaging system |
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