JPS57179770A - Detector of travelling object - Google Patents

Detector of travelling object

Info

Publication number
JPS57179770A
JPS57179770A JP56065397A JP6539781A JPS57179770A JP S57179770 A JPS57179770 A JP S57179770A JP 56065397 A JP56065397 A JP 56065397A JP 6539781 A JP6539781 A JP 6539781A JP S57179770 A JPS57179770 A JP S57179770A
Authority
JP
Japan
Prior art keywords
subject
center part
travelling object
travelling
light volume
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
Application number
JP56065397A
Other languages
Japanese (ja)
Inventor
Michio Kasuya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP56065397A priority Critical patent/JPS57179770A/en
Publication of JPS57179770A publication Critical patent/JPS57179770A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/04—Systems determining the presence of a target

Abstract

PURPOSE:To obtain a detector with which the signal can be extracted with high responsiveness regardless of the form or travelling direction of a travelling object, by increasing the brightness of the light volume distribution of illumination within the detecting range of the travelling object toward the edge from the center part of the distribution. CONSTITUTION:The light volume distribution of illumination is increased toward its edge from the center part within a detecting range of a travelling object. For instance, a travelling object (subject) 1 is fed to a pair of feed rollers 3 and 3' existing right before a photographing part via another pair of feed rollers 2 and 2'. Meanwhile a subject detecting light source 5 illuminates the entire subject path 6 via a slit plate 9. The reflected light from the subject 1 is condensed to a photodetector 8 via a fan-shaped optical guide plate 7 to be detected in case the subject exists. Then the photographing is carried out by the signal of detection. A slit 9a of the plate 9 is made slimmer at its center part than the circumference part to increase relatively the transmitted light volume at the circumference part in comparison with the center part.
JP56065397A 1981-04-30 1981-04-30 Detector of travelling object Pending JPS57179770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56065397A JPS57179770A (en) 1981-04-30 1981-04-30 Detector of travelling object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56065397A JPS57179770A (en) 1981-04-30 1981-04-30 Detector of travelling object

Publications (1)

Publication Number Publication Date
JPS57179770A true JPS57179770A (en) 1982-11-05

Family

ID=13285832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56065397A Pending JPS57179770A (en) 1981-04-30 1981-04-30 Detector of travelling object

Country Status (1)

Country Link
JP (1) JPS57179770A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170285U (en) * 1983-04-28 1984-11-14 株式会社　徳田製作所 Object detection device using reflective photo sensor
JPS63298685A (en) * 1987-05-29 1988-12-06 三洋電機株式会社 Currency storage controller for vending machine
US6918826B2 (en) 2000-08-23 2005-07-19 Kabushiki Kaisha Nippon Conlux Coin treating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170285U (en) * 1983-04-28 1984-11-14 株式会社　徳田製作所 Object detection device using reflective photo sensor
JPS63298685A (en) * 1987-05-29 1988-12-06 三洋電機株式会社 Currency storage controller for vending machine
US6918826B2 (en) 2000-08-23 2005-07-19 Kabushiki Kaisha Nippon Conlux Coin treating device

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