RU13990U1 - DOCUMENT AUTHORITY CHECK DEVICE - Google Patents

Abstract

A document authentication device comprising a photodetector and a video control unit, characterized in that luminescent radiation sources, ultraviolet radiation sources, a television channel containing a small-sized wide-range television camera, the output of which is connected to the input of the video control unit, made in the form of a liquid crystal screen, a television channel are introduced also contains a source of incident infrared (IR) radiation, a source of side oblique infrared radiation , a source of incident blue-green radiation, the light flux of which falls on a surface optically connected to the optical input of a small-sized wide-range television camera, a switch, the control outputs of which are connected to the control inputs of sources of incident IR radiation, side oblique IR radiation, incident blue-green radiation.

Description

Document Authentication Device

The utility model is designed to control documents, securities, banknotes, excise and special stamps, other documents and products having various types of labels in the visible and ultraviolet ranges of optical radiation.

For the diagnosis of documents and images in the infrared range, the technical solution RU 9403312A1H04N5 / 33, “A thermal imaging device containing a lens, a photodetector connected to an electronic video processing unit and a video monitoring device, is known.

The disadvantage of this known technical solution is the inability to control documents in ultraviolet and oblique radiation.

The purpose of the claimed utility model is to create a forensic universal unit for controlling documents in the visible and ultraviolet ranges to ensure authenticity, falsification, or intentional changes in controlled materials.

The stated objective is achieved by the fact that luminescent radiation sources, ultraviolet radiation sources for reading documents in the light, sources of oblique radiation, polarized light sources and a television channel with the study of documents with an increase from 1.4 to 20 times

Figure 1 shows a functional diagram of a desktop forensic unit, figure 2 is a General view of a desktop forensic unit, Fig. 3 is a view of controlled documents.

H04N5 / 33

sources of ultraviolet radiation - 2,

- sources of oblique radiation - 3L, incident radiation in -33,

ss1ezeleis: lz /; exercises of the AP

loops - 4,

- video control unit 1 in the form of a liquid crystal screen - 5,

TV channel - 6,

- enlightened subject table - 7.

Desktop forensic unit works as follows.

The document to be examined is placed on an enlightened subject table and depending on the type of defect to be studied, one of the radiation sources is included in the documents and the defect is examined using a magnifier attached to the device or the document is placed on the table and examined using a television channel in the form of a computer mouse.

A television channel in the form of a computer mouse contains: a source of incident infrared (IR) radiation - a matrix of 8 IR emitting LEDs, a source of lateral oblique IR radiation - a matrix of 3 IR emitting LEDs, a source of incident radiation of a blue-green range - a matrix of 8 LEDs, a small-sized wide-range TV camera, an input optical filter for highlighting the registration band in the far red and IR radiation ranges, a small-sized liquid-crystal TV monitor, a switch of sources of radiation mouse buttons.

A source of incident infrared radiation is used for monitoring in reflected infrared radiation.

Provides verification of the presence and distribution of metameric dye across the document field, identification of changes and additions made by writing and stamping dyes with the same color as the original, differing in the level of absorption of infrared radiation, visualization of images under ink fills, ink inks, ballpoint pen pastes, the phenomenon of fakes by presence pre-quarantine camera 6A, pet-on-camera bV

Dash cuts, allows the reading of absorbing IR radiation of optically dense parts on the back of the document sheet and the next sheet.

A source of lateral oblique IR radiation is used to control the relief elements on the document field in the reflected IR radiation.

Provides a clear reading of the relief elements on the sheet field, identifying the places of sub-rubbing, erasing, traces of pressure of writing instruments, checking the integrity of the seals.

A source of incident blue-green radiation is used to excite luminescence and control in the luminescent radiation of the far red and IR ranges.

Provides identification of changes and additions made by writing and stamping dyes that are the same as the original, differing in the output of IR luminescence, visualization of wrinkled and etched design fragments (stamps, inscriptions), allows reading optically dense luminescent details on the back of the document sheet and the next sheet and up to the eighth the sheet under the sheet on which the recording was made.

In the catalogs, the specified forensic unit, depending on the design, has the names: "Genetics-ZK," Genetics-ZM ("Fireplace)," Genetics-TV.

-X

/ A.V. KOVALEV /

Claims (1)

A document authentication device comprising a photodetector and a video control unit, characterized in that luminescent radiation sources, ultraviolet radiation sources, a television channel containing a small-sized wide-range television camera, the output of which is connected to the input of the video control unit, made in the form of a liquid crystal screen, a television channel are introduced also contains a source of incident infrared (IR) radiation, a source of side oblique infrared radiation , a source of incident blue-green radiation, the light flux of which falls on a surface optically connected to the optical input of a small-sized wide-range television camera, a switch, the control outputs of which are connected to the control inputs of sources of incident IR radiation, side oblique IR radiation, incident blue-green radiation.