JPS6458282A - Photoelectric detector for passage of object - Google Patents
Photoelectric detector for passage of objectInfo
- Publication number
- JPS6458282A JPS6458282A JP21453987A JP21453987A JPS6458282A JP S6458282 A JPS6458282 A JP S6458282A JP 21453987 A JP21453987 A JP 21453987A JP 21453987 A JP21453987 A JP 21453987A JP S6458282 A JPS6458282 A JP S6458282A
- Authority
- JP
- Japan
- Prior art keywords
- light receiving
- passing
- light
- spherical body
- passing direction
- 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
- Pinball Game Machines (AREA)
Abstract
PURPOSE: To make a light receiving element hardly influenced by diffused external light by turning the light receiving element to a light receiving angle not to be orthogonally crossed with an object passing direction or turning it to a light receiving position shifted from the object passing direction center position of an object passing route to the passing direction. CONSTITUTION: A light emitting diode 25 directing a phototransistor 26 is arranged so as not to make an optical axis C be orthogonally crossed with the passing direction A of a spherical body 22 and the axial line of a circular hole 28 is formed so as to match with the optical axis C. Thus, the light receiving angle of the phototransistor 26 is set so as not to be orthogonally crossed with the passing direction A of the spherical body 22. Also, the optical axis C is set so as not to be passed through the plane center 01 of the passing route 24. Even when the diffused external, light B intrudes the passing route 24, the phototransistor 26 does not receive the diffused external light B from the light receiving angle and the case that the passing of the spherical body 22 is not detected even when the spherical body 22 is passed through the passing route 24 is eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21453987A JPS6458282A (en) | 1987-08-28 | 1987-08-28 | Photoelectric detector for passage of object |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21453987A JPS6458282A (en) | 1987-08-28 | 1987-08-28 | Photoelectric detector for passage of object |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6458282A true JPS6458282A (en) | 1989-03-06 |
Family
ID=16657413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21453987A Pending JPS6458282A (en) | 1987-08-28 | 1987-08-28 | Photoelectric detector for passage of object |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6458282A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000325619A (en) * | 1999-03-12 | 2000-11-28 | Adachi Light Co Ltd | Delivery ball detecting device of pachinko game machine |
-
1987
- 1987-08-28 JP JP21453987A patent/JPS6458282A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000325619A (en) * | 1999-03-12 | 2000-11-28 | Adachi Light Co Ltd | Delivery ball detecting device of pachinko game machine |
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