FR2380601A1 - Optical coin testing appts. - compares image of coin with reference image formed as mask attached to objective lens - Google Patents

Optical coin testing appts. - compares image of coin with reference image formed as mask attached to objective lens

Info

Publication number
FR2380601A1
FR2380601A1 FR7803670A FR7803670A FR2380601A1 FR 2380601 A1 FR2380601 A1 FR 2380601A1 FR 7803670 A FR7803670 A FR 7803670A FR 7803670 A FR7803670 A FR 7803670A FR 2380601 A1 FR2380601 A1 FR 2380601A1
Authority
FR
France
Prior art keywords
coin
objective lens
optical
reference image
mask attached
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.)
Granted
Application number
FR7803670A
Other languages
French (fr)
Other versions
FR2380601B1 (en
Inventor
Anton Schaerli
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of FR2380601A1 publication Critical patent/FR2380601A1/en
Application granted granted Critical
Publication of FR2380601B1 publication Critical patent/FR2380601B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/005—Testing the surface pattern, e.g. relief

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)

Abstract

An optical coin tester is used in which the coin (5) is illuminated by a light source (1) and an image of the coin is formed on a detector (3) by a lens (2). A mask (6) is interposed in the light beam having transparent and opaque parts in the form of the reflected image of a coin of the denomination being checked, either positive or negative; the mask is mounted directly on the face of the lens (2) which is pref. plano-convex. Selected parts of the coin may be used for the check by the use of a set of light guides. The coin is rotated about its centre and if identical to the reference coin, will reach a point of congruence at which the detector will give an accept signal; if no congruence is detected the coin will be rejected.
FR7803670A 1977-02-11 1978-02-09 Optical coin testing appts. - compares image of coin with reference image formed as mask attached to objective lens Granted FR2380601A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH165877A CH604287A5 (en) 1977-02-11 1977-02-11

Publications (2)

Publication Number Publication Date
FR2380601A1 true FR2380601A1 (en) 1978-09-08
FR2380601B1 FR2380601B1 (en) 1983-03-25

Family

ID=4215604

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803670A Granted FR2380601A1 (en) 1977-02-11 1978-02-09 Optical coin testing appts. - compares image of coin with reference image formed as mask attached to objective lens

Country Status (3)

Country Link
CH (1) CH604287A5 (en)
DE (1) DE2709315C3 (en)
FR (1) FR2380601A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640944A1 (en) * 1993-08-19 1995-03-01 Laurel Bank Machines Co., Ltd. Coin discriminating apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361886A (en) * 1991-04-11 1994-11-08 Act Gesellschaft Fuer Soft- Und Hardware-Systeme Gmbh Method and apparatus for examining coins

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH503337A (en) * 1969-02-04 1971-02-15 Sodeco Compteurs De Geneve Coin identification device
US3748048A (en) * 1971-11-01 1973-07-24 Gen Motors Corp Method of detecting changes of a specular surface
DE2306187A1 (en) * 1973-02-08 1974-08-15 Josef Mergili OPTOELECTTONIC COIN VALIDATOR
US3921003A (en) * 1973-10-03 1975-11-18 Mars Inc Apparatus for identifying coins

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH503337A (en) * 1969-02-04 1971-02-15 Sodeco Compteurs De Geneve Coin identification device
US3748048A (en) * 1971-11-01 1973-07-24 Gen Motors Corp Method of detecting changes of a specular surface
DE2306187A1 (en) * 1973-02-08 1974-08-15 Josef Mergili OPTOELECTTONIC COIN VALIDATOR
US3921003A (en) * 1973-10-03 1975-11-18 Mars Inc Apparatus for identifying coins

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640944A1 (en) * 1993-08-19 1995-03-01 Laurel Bank Machines Co., Ltd. Coin discriminating apparatus
US5494147A (en) * 1993-08-19 1996-02-27 Laurel Bank Machines Co., Ltd. Coin discriminating apparatus

Also Published As

Publication number Publication date
FR2380601B1 (en) 1983-03-25
CH604287A5 (en) 1978-09-15
DE2709315A1 (en) 1978-08-17
DE2709315B2 (en) 1978-11-30
DE2709315C3 (en) 1979-08-02

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Legal Events

Date Code Title Description
ST Notification of lapse