JPS5677776A - Photoelectric detecting device - Google Patents
Photoelectric detecting deviceInfo
- Publication number
- JPS5677776A JPS5677776A JP15798680A JP15798680A JPS5677776A JP S5677776 A JPS5677776 A JP S5677776A JP 15798680 A JP15798680 A JP 15798680A JP 15798680 A JP15798680 A JP 15798680A JP S5677776 A JPS5677776 A JP S5677776A
- Authority
- JP
- Japan
- Prior art keywords
- image
- lens
- plate
- coincidence
- beams
- 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
- Geophysics And Detection Of Objects (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE: To facilitate both the radiation of beams and coincidence of the optical axes in a receiving device, by forming an image by the optical system and then detecting assuredly the process of the image formation with a photosensitive element.
CONSTITUTION: The lens 4 is mounted inside the cylinder part 3 extended from one side face of the detecting box 2, and the image receiving plate 5 is provided at the position where the real image is formed through the lens 4 inside the box 2. The phototrasnsistor 6 is fixed to the image forming surface of the plate 5 with the light receiving surface turned to the lens 4, and the output of the phototransistor 6 is connected to the measuring circuit 7 of the pulse shaping, the counter and the like. The transistor 6 is usually turned on. Now when the runner A comes near the pass detection lines B, the image is formed on the plate 5 as shown by the dotted lines. Then the image shown by the solid lines is formed at the line B. In this instant, the luminous intensity to the transistor 6 is lowered, and thus the passing of the image is detected through the circuit 7. As a result, both the radiation of beams and coincidence of optical axes in the receiving device is faciliated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15798680A JPS5677776A (en) | 1980-11-10 | 1980-11-10 | Photoelectric detecting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15798680A JPS5677776A (en) | 1980-11-10 | 1980-11-10 | Photoelectric detecting device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP49093079A Division JPS5121177A (en) | 1974-08-14 | 1974-08-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5677776A true JPS5677776A (en) | 1981-06-26 |
Family
ID=15661737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15798680A Pending JPS5677776A (en) | 1980-11-10 | 1980-11-10 | Photoelectric detecting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5677776A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5899781A (en) * | 1981-11-20 | 1983-06-14 | Horiba Ltd | Detecting device for moving object |
US4887583A (en) * | 1988-06-16 | 1989-12-19 | Lin Hsien Chang | Braking device for safety toy-gun |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4974853A (en) * | 1972-10-16 | 1974-07-19 |
-
1980
- 1980-11-10 JP JP15798680A patent/JPS5677776A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4974853A (en) * | 1972-10-16 | 1974-07-19 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5899781A (en) * | 1981-11-20 | 1983-06-14 | Horiba Ltd | Detecting device for moving object |
JPH0262836B2 (en) * | 1981-11-20 | 1990-12-26 | Horiba Ltd | |
US4887583A (en) * | 1988-06-16 | 1989-12-19 | Lin Hsien Chang | Braking device for safety toy-gun |
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