EP0121272A1
Expired / Lapsed
EP
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Apparatus for examining the authenticity of documents
Assignee: JADRIMEX AUTOMATION GROUP BV
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Filing: 1984-02-21
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Granted: —
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Expires: 2004-02-21
Abstract
Abstract Process and apparatus for checking the authenticity of valuable documents by subjecting the document to be checked in a closed room to at least incident light, transmitting and floodlight, especially floodlight at angles of 0 tot 15°.Apparatus is described with document examination places without relative interference of the different radiation.
Inventors
- 👤 Janus Cornelis Dionisius
- 👤 Alle Wielenga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 12:59
CPC Classifications
G; G07; G07D; G07D7/00; G07D7/06; G07D7/12; G07D7/128
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
35 words
Process for checking the authenticity of valuable documents, as herein before defined, by means of radiation, wherein the document to be investigated is examined in a closed room by at least incident, transparant and floodlight.
Claim 2
Dependent Claim
35 words
Process for checking the authenticity of valuable documents, as herein before defined, by means of radiation, wherein the document to be investigated is examined in a closed room by at least incident, transparant and floodlight.
Claim 3
Dependent Claim
20 words
Process according to claim 1, wherein white or coloured floodlight is used at incident angles of 0 tot 15 degrees.
Claim 4
Dependent Claim
21 words
Process according to claims 1-2, wherein as incident light fluorescent or UV-light, as floodlight white light or coloured light is used.
Claim 5
Dependent Claim
77 words
Apparatus for examining the authenticity of valuable documents, as herein before defined, using radiation, wherein in the apparatus one or more fluorescent or UV-light transmitting lamps as well as at least one white light radiating lamp spaced apart by light conducting elements are located in such a way that screening places are formed where the documents to be examined can be radiated without mutual interference by incident light, transmittent light and floodlight of different kinds of radiation.
Claim 6
Dependent Claim
77 words
Apparatus for examining the authenticity of valuable documents, as herein before defined, using radiation, wherein in the apparatus one or more fluorescent or UV-light transmitting lamps as well as at least one white light radiating lamp spaced apart by light conducting elements are located in such a way that screening places are formed where the documents to be examined can be radiated without mutual interference by incident light, transmittent light and floodlight of different kinds of radiation.
Claim 7
Dependent Claim
60 words
Apparatus according to claim 4, wherein one or more UV-fluorescent lamps as well as at least one lamp which radiates at least white light are included between which screening or protection hoods and screening plates are located in such a way that an examination with transmittent light, floodlight and indicent light at certain screening places is possible without mutual interference.
Claim 8
Dependent Claim
100 words
Apparatus according to claims 4-5, characterized in that it contains at least two compartments, the first compartmentcontaining at least a white light radiating lamp, which is placed below a light transmitting plateau on which the open document can be applied or placed, the second compartment containing one or more UV or fluorescent light lamps, which illuminate the other screening place of the document with incident light, wherein in the first compartment screening plateaus and/or hoods are placed in such a way that moreover screening places for the document by means of floodlight originating from the white light lamp are formed.
Claim 9
Dependent Claim
36 words
Apparatus according to claim 4, characterized in that this contains one compartment wherein a combination of white light and UV fluorescent light is present, which compartment is provided with screening and reflection hoods for the floodlight.
Claim 10
Dependent Claim
44 words
Apparatus according to claims 4-7, characterized in that the lamp which at least transmits white light and the screening reflection hoods are placed in such a way that on the relative screening places floodlight is obtained with an incident-angle of 0 to 15 degrees.
Claim 11
Dependent Claim
26 words
Apparatus according to claim 4, characterized in that the different parts of lamps are connected in such a way that they can not simultaneously radiate light.
Claim 12
Dependent Claim
27 words
Apparatus according to claims 4-9, characterized in that a white light transmitting lamp is present which transmits light with a wave length of 500 to 500 nm.
References Cited (Backward Citations)
DE2406634A1
Cited
DE7620757U1
Cited
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