JPH02131633U - - Google Patents
Info
- Publication number
- JPH02131633U JPH02131633U JP1989040801U JP4080189U JPH02131633U JP H02131633 U JPH02131633 U JP H02131633U JP 1989040801 U JP1989040801 U JP 1989040801U JP 4080189 U JP4080189 U JP 4080189U JP H02131633 U JPH02131633 U JP H02131633U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving device
- light receiving
- optical
- slopes
- 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 11
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Exposure Control For Cameras (AREA)
- Blocking Light For Cameras (AREA)
Description
第１図、第２図、第３図、第４図は各々本考案
に関する光学素子の光学的断面図、第５図は、本
考案に係る光学素子の正面図、第６図は、従来の
光学装置の断面図。
１……受光センサー、４……光学素子。
1, 2, 3, and 4 are optical cross-sectional views of the optical element according to the present invention, FIG. 5 is a front view of the optical element according to the present invention, and FIG. 6 is a conventional optical element. A cross-sectional view of the optical device. 1... Light receiving sensor, 4... Optical element.
Claims (1)
あつて、該光学素子の前記受光用素子側の面形状
を、光軸から離れるに従い物体側に傾斜した同心
円、あるいは同心楕円状の斜面で形成したことを
特徴とする受光装置。 (2) 前記光学系の面形状を階段状であつて複数
の前記斜面で形成したことを特徴とする実用新案
登録請求の範囲第１項記載の受光装置。 (3) 前記斜面が光軸とのなす傾斜角をθとする
時 ４０゜＜θ＜８０゜ なる条件式を満足することを特徴とする実用新案
登録請求の範囲第１項記載の受光装置。[Claims for Utility Model Registration] (1) An optical element disposed in front of a light-receiving element, wherein the surface shape of the optical element on the light-receiving element side is inclined toward the object side as the distance from the optical axis increases. A light receiving device characterized by being formed of concentric circles or concentric ellipsoidal slopes. (2) The light receiving device according to claim 1, wherein the surface shape of the optical system is step-like and formed by a plurality of the slopes. (3) The light receiving device according to claim 1, which is a utility model, and satisfies the following conditional expression: 40°<θ<80°, where θ is the angle of inclination of the slope with respect to the optical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989040801U JPH02131633U (en) | 1989-04-05 | 1989-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989040801U JPH02131633U (en) | 1989-04-05 | 1989-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02131633U true JPH02131633U (en) | 1990-11-01 |
Family
ID=31550905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989040801U Pending JPH02131633U (en) | 1989-04-05 | 1989-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02131633U (en) |
-
1989
- 1989-04-05 JP JP1989040801U patent/JPH02131633U/ja active Pending