CN2337612Y - Print contrasting instrument - Google Patents
Print contrasting instrument Download PDFInfo
- Publication number
- CN2337612Y CN2337612Y CN 98201294 CN98201294U CN2337612Y CN 2337612 Y CN2337612 Y CN 2337612Y CN 98201294 CN98201294 CN 98201294 CN 98201294 U CN98201294 U CN 98201294U CN 2337612 Y CN2337612 Y CN 2337612Y
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- trace
- utility
- model
- contrasting
- instrument
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Abstract
The utility model relates to an optic contrasting instrument, particularly a print contrasting instrument. The utility model is used for contrasting prints on different objects in an overlapping mode, such as making the same approval of seal, fingerprint, etc. after comparing and contrasting. The utility model is composed of a semitransparent mirror 1, a reflecting mirror 2, a shell 3, a viewing port 4, a print draft window 10, a pressing plate 5, a bulb 6, a light regulator 7, a switch 8, an indicating lamp 9, etc. The utility model has the advantages of simple structure, artful design of optic path, small size, light weight, low cost, convenient operation, and high reliability. The utility model is widely suitable for stamp anti-counterfeiting in banks, and material evidence identification in public security and judicial departments.
Description
The utility model is a kind of optics comparison instrument, particularly a kind of trace comparison instrument.The purpose of this utility model is to realize the trace on the different objects: it is right to carry out overlap ratio as fingerprint, seal etc., to distinguish the true and false of trace, promptly trace is done the same.
At present known trace comparison instrument is to adopt the CCD camera technique, and the trace image is taken in computer, adopts suitable algorithm that trace is carried out the numeral comparison, draws the coincidence rate value of two traces.This comparison method complex structure, the equipment manufacturing cost height, volume is big, complicated operation, operator's level is required high, can not be effectively in conjunction with people's experience, and be subject to the influence of computer virus and coincidence rate error.Trace of the present utility model comparison instrument has overcome as above shortcoming, have simple in structure, volume is little, cost is low, comparison speed fast, advantage such as can be in conjunction with people's experience, comparison process intuitive operation simple and easy.But large tracts of land is promoted the use of
The purpose of this utility model provides a kind of simple and easy, small-sized, quick, accurate, reliable, inexpensive seal comparison instrument, to differentiate the seal true and false
The purpose of this utility model is achieved in that the utility model is made up of semi-permeable mirror, catoptron, housing, view window, pressing plate, bulb, light modulator, switch, pilot lamp and upper and lower trace original text window etc.Two bulbs illuminate two pieces of trace original texts respectively, make one piece of trace picture directly see through the semi-permeable mirror transmission and go out, and another piece trace picture reflects away by catoptron and semi-permeable mirror.Like this, enter human eye after two pieces of trace images merge to same light path.Regulating trace original text position, can to carry out overlap ratio right.Human eye and one of them trace original text are in the both sides of semi-permeable mirror.Catoptron and the vertical each other setting of semi-permeable mirror.
Advantage of the present utility model is that it is simple in structure, volume is little, easy to operate, inexpensive; The reliability and the confidence level of comparison that main is are high, the coincidence rate error issuable bank work mistake that has existed when thoroughly having eliminated the computer comparison and cause the possibility of heavy economic losses.Simultaneously because its inexpensive and ease for operation; But large tracts of land is promoted the use of, and reaches general effectively antifalse effect, and the homogeneity that can be used as police and judicial department trace is identified.
Fig. 1 is a kind of embodiment wiring layout of trace comparison instrument of the present utility model.
The embodiment of trace comparison instrument of the present utility model is described in conjunction with Fig. 1.
Trace comparison instrument of the present utility model is made up of semi-permeable mirror 1, catoptron 2, housing 3, view window 4, pressing plate 5, bulb 6, light modulator 7, switch 8, pilot lamp 9, trace original text window 10.Semi-permeable mirror 1 is made by transparent material, both can see through light, but reflected light again.Catoptron 2 can reflect the trace picture, and semi-permeable mirror 1 and the vertical each other setting of catoptron 2 are embedded in housing 3 appropriate locations, and housing 3 can be made by metal or nonmetallic materials, plays each parts of supporting.Can see two trace original text pictures from view window 4.Pressing plate 5 can be pressed on comparison material on the trace original text window 10, and two bulbs 6 play the effect of illumination trace, is separately positioned near two traces in the housing.Be common bulb.Light modulator 7 is arranged on (comprising its control circuit) appropriate location of housing easy operating and installation, can regulate the relative brightness of two bulbs 6 simultaneously, with adjust two trace pictures to specific luminance.Switch 8 is arranged on the housing 3, plays the break-make power supply.Housing 3 outsides that pilot lamp 9 is provided with, indication power work situation.Two trace original text windows 10 generally are located at the two ends up and down of housing 3, and two trace original texts are placed on this place respectively, so that comparison material keeps correct image distance.One of them comparison material (trace original text) can be under light-illuminating, its picture is seen through a trace original text window 10 and semi-permeable mirror 1 and view window 4 to be reflected in the human eye, another comparison material is then under another light-illuminating, its picture is reflexed on the semi-permeable mirror 1 by catoptron 2, by semi-permeable mirror 1 reflection, pass view window 4 and also be reflected in the human eye, so again, two width of cloth trace pictures and in same light path can be by its homogeneity of eye-observation.Move comparison trace original text and can make two pieces of trace doublings of the image.Overlap fully as two pieces of images, then, can judge the homogeneity of two traces exactly with this because the overlapping booster action of two-way light can make the trace image pane outer clear.
Claims (3)
1. a trace comparison instrument of being made up of semi-permeable mirror (1), catoptron (2), housing (3), watch window (4), pressing plate (5), bulb (6), light modulator (7), switch (8), pilot lamp (9), two trace original text windows (10) is characterized in that: semi-permeable mirror (1) and the vertical each other setting of catoptron (2).
2. trace according to claim 1 comparison instrument is characterized in that: watch window (4) and a trace original text are in the both sides of semi-permeable mirror (1) respectively.
3. trace comparison instrument according to claim 1, it is characterized in that: bulb (6) is radiated at respectively on two trace original text windows (10), and two relative light intensities are adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98201294 CN2337612Y (en) | 1998-02-23 | 1998-02-23 | Print contrasting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98201294 CN2337612Y (en) | 1998-02-23 | 1998-02-23 | Print contrasting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2337612Y true CN2337612Y (en) | 1999-09-08 |
Family
ID=33958619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98201294 Expired - Fee Related CN2337612Y (en) | 1998-02-23 | 1998-02-23 | Print contrasting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2337612Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941525A (en) * | 2014-04-02 | 2014-07-23 | 刘冬梅 | Multifunctional file comparison instrument |
-
1998
- 1998-02-23 CN CN 98201294 patent/CN2337612Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941525A (en) * | 2014-04-02 | 2014-07-23 | 刘冬梅 | Multifunctional file comparison instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |