GB1229886A - - Google Patents
Info
- Publication number
- GB1229886A GB1229886A GB1229886DA GB1229886A GB 1229886 A GB1229886 A GB 1229886A GB 1229886D A GB1229886D A GB 1229886DA GB 1229886 A GB1229886 A GB 1229886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- infra
- red
- design
- sheet
- mark
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
- G07C9/24—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder by means of a handwritten signature
- G07C9/243—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder by means of a handwritten signature visually, e.g. by comparing in a viewer the written signature with a reference on the pass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Credit Cards Or The Like (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
1,229,886. Handwriting comparing; fraud preventing. CANON CAMERA CO. Inc. 11 June, 1968 [12 June, 1967 (2)], No. 27764/68. Headings B6A and B6X. [Also in Divisions C4, G2 and H2] A method of concealing and subsequently identifying designs or marks on a sheet 1 such as a check consists of making the mark with a material impermeable to infra-red rays and covering it with material opaque to visible light but permeable to infra-red and identifying the mark by exposing the sheet on one side to infra-red rays to generate a shadow of the mark which is recognized by viewing an ultra-violetirradiated fluorescent member upon which the infra-red image is cast. A design or mark is written with ink impermeable to infra-red, such as ink mainly composed of carbon black, and is smeared with ink opaque to visible light, for example ink mainly composed of oil black, and the surface of the sheet containing the signature is sealed with a thin film 3<SP>1</SP> having the same properties as the ink used for the smearing. A thin fluorescent plate 4, covered on one side with a layer of transparent acetate or polyester (40), Fig. 9 (not shown), or optical fibres (40<SP>1</SP>), Fig. 10 (not shown), is placed on top of the sheet with the fibre layer next to the sheet and an infra-red ray source 5 and a filter 6 passing only infra-red are placed behind the sheet 1 and when the source 5 is switched on an ultraviolet source 7 is switched on simultaneously to illuminate the fluorescent plate 4. The fluorescence is quenched by the action of the infra-red at all points of the plate except at those points corresponding to the mark which are shielded so that the concealed design becomes visible. The paper 1 is held between the filter plate 6 and fluorescent plate 4. The design 11 to be compared is placed on a base 10 and illuminated by a lamp 12 and a semi-reflecting mirror 9 is provided so that the design 11 and the design 4 may be viewed as if superposed by the eye at 13. In an alternative embodiment, Fig. 5, a design on a sheet 1 is inserted between the baseplate 15 and an infra-red filter and is irradiated from an infra-red source 5. The infra-red shadow of the design is formed on the fluorescent plate 4 and illuminated from the same side by an ultra-violet lamp 7 forming, as in the previous embodiment, an image of the design to be compared visually with the design 11 on the base 10 by means of a semi-reflecting mirror 9. Details of a machine for performing this operation and a quick lighting system for lamp 12 are also given.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1967050067U JPS4431031Y1 (en) | 1967-06-12 | 1967-06-12 | |
JP3746967 | 1967-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1229886A true GB1229886A (en) | 1971-04-28 |
Family
ID=43532635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1229886D Expired GB1229886A (en) | 1967-06-12 | 1968-06-11 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3783290A (en) |
CH (1) | CH477065A (en) |
DE (1) | DE1789116C3 (en) |
GB (1) | GB1229886A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2127479A (en) * | 1982-09-18 | 1984-04-11 | Sr John Maxwell Mullin | Security device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU6269699A (en) | 1998-09-29 | 2000-04-17 | Angstrom Technologies, Inc. | First-order authentication system |
AU1083001A (en) * | 1999-10-14 | 2001-04-23 | Win Erickson | Point of sale counterfeit detection apparatus |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2901653A (en) * | 1957-04-22 | 1959-08-25 | Westinghouse Electric Corp | Fluorescent lamp |
US3166998A (en) * | 1959-11-19 | 1965-01-26 | Watson Electronics & Engineeri | Photographic dodging method and apparatus |
JPS499248B1 (en) * | 1966-09-05 | 1974-03-02 | ||
US3487210A (en) * | 1968-09-10 | 1969-12-30 | Ultra Violet Products Inc | Signature comparison system |
US3519881A (en) * | 1969-03-17 | 1970-07-07 | Westinghouse Electric Corp | Starting and operating circuit for any of a plurality of different discharge lamps |
US3996617A (en) * | 1975-04-16 | 1976-12-07 | Cousino Corporation | Tape cartridge changer apparatus |
-
1968
- 1968-06-11 DE DE1789116A patent/DE1789116C3/en not_active Expired
- 1968-06-11 GB GB1229886D patent/GB1229886A/en not_active Expired
- 1968-06-12 CH CH870168A patent/CH477065A/en not_active IP Right Cessation
-
1971
- 1971-03-01 US US00119613A patent/US3783290A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2127479A (en) * | 1982-09-18 | 1984-04-11 | Sr John Maxwell Mullin | Security device |
Also Published As
Publication number | Publication date |
---|---|
DE1789116B2 (en) | 1974-06-27 |
US3783290A (en) | 1974-01-01 |
DE1789116C3 (en) | 1975-02-27 |
DE1789116A1 (en) | 1972-04-06 |
DE1772620A1 (en) | 1970-08-27 |
DE1772620B2 (en) | 1972-10-26 |
CH477065A (en) | 1969-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3426266B2 (en) | Recording medium such as check card or identification card having color image information | |
JPS62282225A (en) | Meter device for vehicle | |
PL192632B1 (en) | Display panel | |
US6722066B1 (en) | Single and multiple illuminated images | |
US4316337A (en) | Illuminated display assembly | |
US5130825A (en) | Arrangement for graphic representation using holographic foils | |
GB1229886A (en) | ||
DE1147423B (en) | Device for recognizing printed characters | |
US5444932A (en) | Electric sign advertising element | |
GB1194301A (en) | Translucent Instrument Dial Means. | |
US3707052A (en) | Slide viewer | |
US2823476A (en) | Illuminated devices | |
Godown | New nondestructive document testing methods | |
US2772498A (en) | Edge illuminated panel | |
NO762771L (en) | ||
US4459015A (en) | Indicia bearing laminated cards and apparatus and method for producing indicia bearing laminated cards | |
JPH0123187Y2 (en) | ||
US3475762A (en) | Translucent display elements | |
JP3624249B2 (en) | Laminated body with transparent pattern that can be discriminated | |
US3447877A (en) | Comparison photometer having superposed separately intelligible indicia | |
Stephenson | The Delineation of a Grand Plan | |
JPH0123188Y2 (en) | ||
JPS6180146A (en) | Synthetic print | |
DE1942307C (en) | Arrangement for identifying signatures and stamps, seals or the like. -print | |
RU2165650C2 (en) | Illuminated sign and its board |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |