JPS58195206U - Optical system in focus detection device - Google Patents
Optical system in focus detection deviceInfo
- Publication number
- JPS58195206U JPS58195206U JP9394482U JP9394482U JPS58195206U JP S58195206 U JPS58195206 U JP S58195206U JP 9394482 U JP9394482 U JP 9394482U JP 9394482 U JP9394482 U JP 9394482U JP S58195206 U JPS58195206 U JP S58195206U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- detection device
- focus detection
- circuit block
- block
- 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
- Focusing (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図はカメラ内部の機能配置斜視説明図、第２図はカ
メラ動作のフローチャート、第３図は電気的なカメラ機
能ブロック図、第４図は測距用発光部及び受光部の説明
図、第５図は測距用受光部の詳細説明図、第６図は測距
原理説明図、第７図はレンズ周辺の断面図、第８図はレ
ンズ駆動部の平面図、第９図はシャツタ駆動部９平面図
、第１０図は電気的なカメラ機能ブロックの詳細回路図
、第１１図は測距系動作波形図、第１２図はカメラ動作
のタイムチャート、第１３図は第１０図におけるＡＦ制
御回路ブロックとシャッタ制御回路ブロックの機能を抜
き出して簡略的に示した回路図である。
１００・・・・・・カメラボディ、１０２・・・・・・
発光素子、１０３・・・・・・発光受光々学系、１０４
・・・・・・測距基板ブロック、１１６・・・・・・撮
影用光学系、３０６・・・・・・パワーレリーズ回路ブ
ロック、３０７・・・・・・パワートランジスタ、３０
８，３０９・・・・・・電圧安定化回路ブロック、３１
０・・・・・・シーケンス制御回路ブロック、３２０・
・・・・・ＡＦ発光回路ブロック、３３０・・・・・・
ＡＦ受光回路ブロック、３３１〜３３３・・・・・・受
光素子、３３４・・・・・−ＡＦ表示ブロック、３４０
・・・・・・ＡＦ制御回路ブロック、３４１・・・・・
・レンズ駆動用のアクチュエータ（プリントコイル）、
３４２・・・・・・レンズホールド及びホールド解除用
のアクチュエータ（コイル）、３５０・・・・・・シャ
ッタ制御ブロック、３５３・・・・・・シャッタ制御用
のアクチュエータ（プリントコイル）、３６０・・・・
・・シンクロ制御回路ブロック、３７０・・・・・・モ
ータ制御回路ブロック、１θ３ａ、１０３ｂ・・・・・
・樹脂材による発光、受光用非球面フレネルレンズ、４
０１〜４０３・・・・・・結像レンズ、４０４・・・・
・・平板部、４０５・・・・・・鏡面部、６０１・・・
・・・被写体。Fig. 1 is a perspective explanatory diagram of the functional arrangement inside the camera, Fig. 2 is a flowchart of camera operation, Fig. 3 is an electrical camera functional block diagram, Fig. 4 is an explanatory diagram of the distance measuring light emitting part and the light receiving part, Figure 5 is a detailed diagram of the light receiving section for distance measurement, Figure 6 is a diagram explaining the principle of distance measurement, Figure 7 is a sectional view of the lens periphery, Figure 8 is a plan view of the lens drive unit, and Figure 9 is a shirt stand. A plan view of the drive unit 9, FIG. 10 is a detailed circuit diagram of the electrical camera function block, FIG. 11 is a distance measurement system operation waveform diagram, FIG. 12 is a time chart of camera operation, and FIG. FIG. 2 is a circuit diagram schematically showing extracted functions of an AF control circuit block and a shutter control circuit block. 100... Camera body, 102...
Light emitting element, 103... Light emitting/receiving optical system, 104
... Distance measurement board block, 116 ... Photography optical system, 306 ... Power release circuit block, 307 ... Power transistor, 30
8,309... Voltage stabilization circuit block, 31
0...Sequence control circuit block, 320.
...AF light emitting circuit block, 330...
AF light receiving circuit block, 331-333... Light receiving element, 334...-AF display block, 340
...AF control circuit block, 341...
・Lens drive actuator (printed coil),
342... Actuator (coil) for lens hold and hold release, 350... Shutter control block, 353... Actuator (printed coil) for shutter control, 360...・・・
... Synchro control circuit block, 370 ... Motor control circuit block, 1θ3a, 103b ...
・Aspherical Fresnel lens for emitting and receiving light using resin material, 4
01-403... Imaging lens, 404...
...Flat plate part, 405... Mirror surface part, 601...
···subject.
Claims (1)
レンズと、受光素子の前面に配置される集光レンズとを
、樹脂材により非球面フレネル型に一体成形したことを
特徴とする光学系。An optical system characterized in that a condenser lens disposed in front of a light emitting element in a focus detection device and a condenser lens disposed in front of a light receiving element are integrally molded from a resin material into an aspherical Fresnel type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9394482U JPS58195206U (en) | 1982-06-22 | 1982-06-22 | Optical system in focus detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9394482U JPS58195206U (en) | 1982-06-22 | 1982-06-22 | Optical system in focus detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58195206U true JPS58195206U (en) | 1983-12-26 |
Family
ID=30225126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9394482U Pending JPS58195206U (en) | 1982-06-22 | 1982-06-22 | Optical system in focus detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58195206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62111223A (en) * | 1985-11-11 | 1987-05-22 | Olympus Optical Co Ltd | Range finding optical system with mechanism for correcting out-of-focus due to temperature of photographic lens |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS508544A (en) * | 1973-05-21 | 1975-01-29 | ||
| JPS5261522A (en) * | 1975-11-14 | 1977-05-21 | Iseki Agricult Mach | Running gear for rice transplanting machine |
-
1982
- 1982-06-22 JP JP9394482U patent/JPS58195206U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS508544A (en) * | 1973-05-21 | 1975-01-29 | ||
| JPS5261522A (en) * | 1975-11-14 | 1977-05-21 | Iseki Agricult Mach | Running gear for rice transplanting machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62111223A (en) * | 1985-11-11 | 1987-05-22 | Olympus Optical Co Ltd | Range finding optical system with mechanism for correcting out-of-focus due to temperature of photographic lens |
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