JPS63190956U - - Google Patents
Info
- Publication number
- JPS63190956U JPS63190956U JP8120987U JP8120987U JPS63190956U JP S63190956 U JPS63190956 U JP S63190956U JP 8120987 U JP8120987 U JP 8120987U JP 8120987 U JP8120987 U JP 8120987U JP S63190956 U JPS63190956 U JP S63190956U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- measuring device
- speed measuring
- moving object
- spatial filter
- 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 4
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Optical Transform (AREA)
Description
第１図は本考案の一実施例に係る速度計測装置
の構成図、第２図および第３図は第１図の速度計
測装置に使用されるフイルタの作用の説明図、第
４図は第１図の速度計測装置に使用されるフイル
タの性能および構造の説明図、第５図は従来の速
度計測装置の構成図、第６図は速度計測装置に使
用される受光素子の構成図である。
１……受光レンズ、２……受光素子、３……プ
リアンプ、５……投光器、６……計測回路、１０
……フイルタ、１１……透明フイルタ。
FIG. 1 is a configuration diagram of a speed measuring device according to an embodiment of the present invention, FIGS. 2 and 3 are explanatory diagrams of the action of a filter used in the speed measuring device of FIG. 1, and FIG. Figure 1 is an explanatory diagram of the performance and structure of a filter used in the speed measuring device, Figure 5 is a configuration diagram of a conventional speed measuring device, and Figure 6 is a configuration diagram of a light receiving element used in the speed measuring device. . 1... Light receiving lens, 2... Light receiving element, 3... Preamplifier, 5... Emitter, 6... Measurement circuit, 10
...Filter, 11...Transparent filter.
Claims (1)
ルタで受光し、該空間フイルタの出力信号の周波
数から移動体の速度を計測する速度計測装置にお
いて、前記光学系への光の入射角を制限する光学
的フイルタ手段を前記光学系の入射面側に備えた
ことを特徴とする速度計測装置。 In a speed measuring device that receives reflected light from a moving object via an optical system with a spatial filter and measures the speed of the moving object from the frequency of the output signal of the spatial filter, the incident angle of light to the optical system is limited. 1. A speed measuring device comprising: an optical filter means on the entrance surface side of the optical system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8120987U JPS63190956U (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8120987U JPS63190956U (en) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63190956U true JPS63190956U (en) | 1988-12-08 |
Family
ID=30932739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8120987U Pending JPS63190956U (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63190956U (en) |
-
1987
- 1987-05-29 JP JP8120987U patent/JPS63190956U/ja active Pending