JP2021111383A - Stamp image acquisition device with excellent clarity and cushioning - Google Patents

Abstract

To provide a stamp image acquisition device (D) with excellent clarity and cushioning.SOLUTION: A stamp image acquisition device for optically generating image information of a stamp on which an uneven pattern is formed, comprises: a prism unit including an incident surface to which light emitted from a light source is made incident, an image transmission surface through which light reflected by the uneven pattern of the stamp is transmitted, and an emitted surface through which the reflected light is emitted to the image acquisition portion; a high transparent elastic layer provided in contact on the image transmission surface of the prism unit; and a low transparent elastic layer provided on the top of the high transparent elastic layer to directly press the uneven pattern of the stamp, and having a lower transmittance than the high transparent elastic layer.SELECTED DRAWING: Figure 2a

Description

The present invention relates to a Stamp Image Acquisition Device with Excellent Clarity and Cushioning, which has excellent sharpness and cushioning feeling. More specifically, the present invention sequentially contacts the image transmitting surface of the prism portion. The present invention relates to a stamp image acquisition device having excellent clarity and cushioning feeling by using the difference in transmittance between the provided high-transparency elastic layer and low-transparency elastic layer.

Seals often have a stamp or ink on the uneven pattern of a stamp or stamp, and the pattern is made to appear through the stamp or ink by imprinting it on a paper-like surface. However, such traditional stamps are contaminated with stamps and stamps by stamps and inks, and maintenance is troublesome. With the inefficiency of scanning seals.

In order to solve such problems, recently, financial institutions and public institutions have developed and mass-produced stamp scanners in order to efficiently process stamps that prove individual decision-making.

As a prior art document related to this, there is a “concave-convex pattern image acquisition device” (hereinafter referred to as “Patent Document 1”) of Korean Registered Patent No. 10-1515346. The patent document 1 includes an elastic pad 2 so as to be in close contact with the information input surface 1a of the prism 1 as shown in FIG. 1a. The elastic pad 2 sequentially includes a first elastic layer 2a and a light transmitting layer 2b. And by providing the second elastic layer 2c, the pressure is dispersed by the light transmitting layer 2b so that the stamp image is not distorted while the imprinting is performed by the second elastic layer 2c of the elastic pad 2. Proposed to.

However, in Patent Document 1, when the second elastic layer 2c with which the seal is in direct contact has the seal or ink of the existing seal, the sharpness is improved by affecting the seal image at the time of the next imprint. Of course, there was a problem that the stamp image itself was distorted.

Not only that, unlike the original intention, the thickness of the second elastic layer 2c and the light transmitting layer 2b are formed as thin as about 0.12 mm, respectively, so that the user actually stamps the seal. There is a limit that a cushioning feeling is hardly provided, and there is another problem that the amount of material used unnecessarily increases due to the formation of the first elastic layer 2a to be excessively thick.

In order to solve such a problem, Korean Registered Patent No. 10-1594114 "Pattern image acquisition device having a double elastic structure and its method" (hereinafter referred to as "Patent Document 2") has been proposed. .. As shown in FIG. 1b, Patent Document 2 includes an elastic pad 2 so as to be in close contact with the information input surface 1a of the prism 1, but is elastic so as to be separated from the elastic pad 2 and a space 4 is provided between them. By providing the film 3, when the stamp is pressed, the elastic pad 2 is imprinted through the elastic film 3, the space 4 is provided again at the time of detachment, and the stamp or ink is applied only to the elastic film 3. However, we tried to provide a stamp image with excellent sharpness without directly affecting the elastic pad 2.

However, in Patent Document 2, the surface of the elastic film 3 cannot provide a sufficient frictional force to the seal, and a slip phenomenon of the seal occurs in the process of imprinting, whereby fine imprinting by the user is not performed. As long as there is a problem that the seal image is distorted.

Not only that, as the elastic film 3 adopts a thin film structure, the durability is not excellent, so that there is a problem that the elastic film 3 is easily torn or stretched.

Republic of Korea Registered Patent No. 10-1515346 Republic of Korea Registered Patent No. 10-1594114

The present invention has been derived in order to solve the above-mentioned problems, and while giving a sufficient cushioning feeling to the user in the stamping process of the stamp, the sharpness even if the stamp or ink is attached to the surface. Is able to provide excellent stamp images, and its purpose is to provide a stamp image acquisition device with excellent durability, sharpness and cushioning while reducing the amount of unnecessary elastic material used. be.

The seal image acquisition device (D) having excellent sharpness and cushioning feeling of the present invention is for optically generating image information of a seal (S) on which a concavo-convex pattern is formed, and is a light source (L). The incident surface 11 on which the light emitted from the light is incident, the image transmitting surface 12 on which the light reflected by the uneven pattern of the seal (S) is transmitted, and the emitted light that emits the reflected light to the image acquisition unit (C). The prism portion 10 including the surface 13; the highly transmissive elastic layer 20 provided in contact with the image transmitting surface 12 of the prism portion 10; and the seal (S) provided on the upper portion of the highly transmissive elastic layer 20. The uneven pattern of the above is directly pressurized and includes a low-permeability elastic layer 40; which has a lower transmittance than the high-permeability elastic layer 20.

As another embodiment, the seal image acquisition device (D) having excellent sharpness and cushioning feeling of the present invention is for optically generating the image information of the seal (S) on which the uneven pattern is formed. The incident surface 11 on which the light emitted from the light source (L) is incident, the image transmission surface 12 on which the light reflected by the uneven pattern of the seal (S) is transmitted, and the image acquisition unit (the reflected light). Prism portion 10 including an exit surface 13 that emits light to C); Highly transmissive elastic layer 20 provided in contact with the image transmitting surface 12 of the prism portion 10; Contacting on the highly transmissive elastic layer 20 The highly permeable film layer 30 provided; It is characterized by containing a low-permeability elastic layer 40;

The high-transparency elastic layer 20 and the high-transparency film layer 30 have a transmittance of 0.8 to 1, and the low-transparency elastic layer 40 has a transmittance of 0.3 to 0.5. Is preferable.

Further, the thickness of the highly permeable elastic layer 20 is preferably 0.15 mm or more.

In addition, the thickness of the highly transparent film layer 30 is preferably 0.045 to 0.075 mm.

The thickness of the low-permeability elastic layer 40 is preferably 2.0 mm or more.

The image acquisition unit (C) can include a sharpness correction unit 50 that increases the contrast ratio of the light reflected by the uneven pattern of the seal (S).

According to the stamp image acquisition device having excellent sharpness and cushioning feeling of the present invention, a high-transparency film layer having a constant hardness is provided in contact with a high-transparency elastic layer, and a sufficient cushion is provided for the user in the process of stamping a stamp. The imprinting pressure can be dispersed by the film layer while giving a feeling.

Further, by providing a low-transparency elastic layer on the high-transparency elastic layer and the high-transparency film layer, it is possible to provide a stamp image having excellent sharpness even if a stamp or ink remains on the surface.

Further, based on the ratio of the relative thicknesses of the low-transparency elastic layer and the high-transparency film layer, sufficient durability can be ensured while reducing the amount of the material used for the high-transparency elastic layer.

Then, even if a part of the light transmittance is lowered and the brightness of the reflected light is lowered, the sharpness correction unit can increase the contrast of the image information to provide a clear stamp image. can.

It is sectional drawing which shows the seal stamp image acquisition apparatus by a prior art. It is sectional drawing which shows the seal stamp image acquisition apparatus by a prior art. It is sectional drawing which shows the seal stamp image acquisition apparatus by one Example of this invention. It is sectional drawing which shows the operation principle of the seal stamp image acquisition apparatus of this invention. It is sectional drawing which shows the seal stamp image acquisition apparatus by one Example of this invention. It is sectional drawing which shows the seal stamp image acquisition apparatus by another Example of this invention.

Hereinafter, the stamp image acquisition device (D) having excellent sharpness and cushioning feeling of the present invention will be described in detail with reference to Examples and Drawings.

The stamp image acquisition device (D) having excellent sharpness and cushioning feeling of the present invention is for optically generating the image information of the seal (S) on which the uneven pattern is formed, and is for optically generating the image information of FIGS. 2a and 3A. As shown in the above, the prism portion 10, the highly permeable elastic layer 20, and the low permeable elastic layer 40 can be included.

On the other hand, the seal stamp image acquisition device (D) of the present invention has the prism portion 10, the high-transmission elastic layer 20, and the low-transmission elastic layer, similarly to the image acquisition device according to the prior art as shown in FIGS. 1a and 1b. In addition to 40, a light source (L) that indispensably emits light and an image acquisition unit (C) that generates a stamp image based on the reflected light must be provided, but one device including these configurations is provided. The above configuration can be separately separated and embodied as another device.

The prism portion 10 has a configuration in which incident light is reflected, transmitted, and refracted and emitted to generate a stamp image based on the uneven pattern formed on the seal (S), and the incident surface 11 and the image transmitting surface 12 are formed. And the exit surface 13. Specifically, the incident surface 11 is a surface provided on a portion where the light emitted from the light source (L) is incident, and the image transmitting surface 12 is the light reflected by the uneven pattern of the seal (S). Is a surface provided on the portion through which the light is transmitted, and the exit surface 13 is a surface provided on the portion where the reflected light is emitted to the image acquisition unit (C).

On the other hand, the above-mentioned high-transparency elastic layer 20 and low-transparency elastic layer 40 may be laminated and provided on the image transmission surface 12 of the prism portion 10. The light emitted from the light source (L) flows in through the incident surface 11 of the prism portion 10, passes through the image transmitting surface 12, and is provided in contact with the upper portion of the high-transmissive elastic layer 20 and the low-transmissive elastic layer. 40 is sequentially transmitted and partially absorbed or reflected based on the uneven pattern of the seal (S), and the reflected light is again emitted to the image acquisition unit (C) via the image transmission surface 12 and the exit surface 13. Will be done.

The highly transparent elastic layer 20 is provided in contact with the image transmitting surface 12 of the prism portion 10, and can be made of a silicon-based or urethane-based elastic polymer. The highly transmissive elastic layer 20 is formed so that the light emitted from the light source (L) is minimized from being absorbed or reflected, and the transmittance is 0.8 to 1 so that most of the light is transmitted. Is preferable.

On the other hand, the highly permeable elastic layer 20 finally functions to receive and absorb pressure when the user imprints the seal, and the thicker the thickness, the greater the buffering effect. However, it has the disadvantages of increasing its own weight and increasing the amount of material used.

Further, depending on the embodiment, as shown in FIG. 4, a highly permeable film layer 30 may be provided on the highly permeable elastic layer 20. The high-transparency film layer 30 is provided in contact with the high-transparency elastic layer 20 so as to be laminated on the high-transparency elastic layer 20, and similarly to the high-transparency elastic layer 20, the high-transparency film layer 30 is also provided. It is preferable to form the film so that the transmittance is 0.8 to 1 so that the light emitted from the light source (L) is absorbed or reflected to the minimum and most of the light is transmitted.

The highly permeable film layer 30 is formed so as to have a certain hardness, and is provided in the lower portion by evenly dispersing the local imprinting pressure generated in the imprinting process of the seal. The elastic layer 20 functions so that it can completely receive and buffer the pressure.

Further, the low-permeability elastic layer 40 is provided in contact with the high-permeability elastic layer 20 to the high-transparency film layer 30, and the uneven pattern of the seal (S) is directly pressed. Therefore, it is made of a silicone-based or urethane-based elastic polymer, provides sufficient frictional force and cushioning feeling, and does not cause a slipping phenomenon when the user stamps the stamp (S), so that the stamp can be stamped effectively. It also has the effect of improving usability. Not only that, there is an advantage that it is possible to acquire homogeneous and stable video information by different users without the stamp video appearing differently.

However, as shown in FIG. 2b, in the stamp image acquisition device (D) of the present invention, the light emitted from the light source (L) is absorbed by being incident at an angle larger than the critical angle of the outer surface of the low-transmission elastic layer 40. Since the device adopts the formula, light is absorbed in the convex portion of the uneven pattern of the seal (S) in contact with the low-transparency elastic layer 40, and is reflected in the concave portion.

Therefore, the present invention has been proposed to artificially reduce the transmittance of the low-transparency elastic layer 40 so that light is not absorbed by the stamped meat remaining on the surface, and the low-transparency elastic layer 40 has the high transmittance. There is technical differentiation in that the transmittance is formed lower than that of the permeable elastic layer 20. The low-transparency elastic layer 40 has a relatively low transmittance even when the stamp or ink remains on the surface and is contaminated, so that the light absorbed by the residual stamp or ink is formed. To minimize. Therefore, since the amount of light that is relatively reflected can be increased, it is possible to prevent the phenomenon that unnecessary distortion occurs in the stamp image and secure the sharpness.

As described above, the highly transparent elastic layer 20 and / or the highly transparent film layer 30 has a transmittance that minimizes absorption or reflection of light emitted from the light source (L) and allows most of the light to pass through. It is preferable to form it so as to be 0.8 to 1.

As a result, the low-permeability elastic layer is in a state where the transmittance range of the high-transparency elastic layer 20 and the high-transparency film layer 30 is limited to the numerical range (thicknesses are 2.0 mm and 0.05 mm, respectively). An attempt was made to derive image information based on the transmittance (thickness is 0.15 mm) of the low-transparency elastic layer 40 in a state where the stamped meat was artificially applied to 40. The results of the video information were classified according to whether or not there was video distortion due to the remaining stamp.

(Example 1) Image distortion and decrease in brightness due to the ratio of transmittance (provided only with a highly transparent elastic layer)

(Example 2) Image distortion and decrease in brightness due to the ratio of transmittance (both a highly transparent elastic layer and a film layer are provided).

The above-mentioned examples do not describe all the experiments, but only the representative examples are described together, and the highly permeable elastic layer 20 and the highly permeable film layer 30 are described based on the above table. The low transmittance elastic layer 40 has a transmittance of 0.8 to 1, and when the transmittance exceeds 0.5, the stamp image is distorted by the remaining stamp film, but the transmittance is high. When it is formed at 0.5 or less, it can be confirmed that the image of the original stamp stamp is obtained without any particular distortion.

However, when the transmittance of the low-transmittance elastic layer 40 is less than 0.3, the brightness (brightness) of the image information is too low, which is not preferable, and the low-transmittance elastic layer 40 is formed at 0.3 to 0.5. More preferably, the highly permeable elastic layer 20 and the highly permeable film layer 30 are permeable to the low permeable elastic layer 40 on the premise that the transmittance is 0.8 to 1. The rate can be 0.35 to 0.45.

Further, in producing the stamp image acquisition device (D) of the present invention, as shown in FIG. 4, the usage pattern is different based on the relative thickness of the high-transparency film layer 30 and the low-transparency elastic layer 40. Based on the following examples, we tried to derive the optimum thickness ratio that does not cause slippage or the phenomenon that press-fitting to a specific part is concentrated based on 100 users. At this time, the thickness of the highly permeable elastic layer 20 was formed to 2.0 mm with a sufficient margin.

(Example 3) When the thickness of the highly transparent film layer 30 is 0.10 mm.

(Example 4) When the thickness of the highly transparent film layer 30 is 0.08 mm

(Example 5) When the thickness of the highly transparent film layer 30 is 0.05 mm

(Example 6) When the thickness of the highly transparent film layer 30 is 0.04 mm

The above-mentioned examples did not describe all the experiments, but only typical examples were described together, and the low-permeability elastic layer 40 was the thickness of the high-transparency film layer 30. Regardless of, when the thickness is less than 0.15 mm, it can be confirmed that the slip phenomenon and the press-fitting concentration phenomenon occur relatively high.

Further, even if the low-permeability elastic layer 40 has a minimum thickness of 0.15 mm, if the thickness of the high-permeability film layer 30 is at least 0.08 mm or more, a slip phenomenon occurs, and the seal Restoration was easily performed even if the bending phenomenon due to press-fitting occurred, but when it was formed at 0.04 mm or less, there was little slippage, but a press-fitting concentration phenomenon that was deeply scanned along the frame of the seal occurred. , It was confirmed that some non-restoring deformations occur, causing a decrease in functionality.

Therefore, it has been derived that it is desirable that the low-permeability elastic layer 40 is secured at 0.15 mm or more, and that the high-transparency film layer 30 is preferably formed at 0.045 to 0.075 mm.

On the other hand, when the low-permeability elastic layer 40 and the high-transparency film layer 30 are formed with the most structurally unfavorable thickness, the low-permeability elastic layer 40 is 0.15 mm and is high. When the permeable film layer 30 is 0.045 mm and the thickness of the highly permeable elastic layer 20 is 2.0 mm or more, the imprinting pressure is sufficiently absorbed, and there is no problem in elastic restoration after the pressure is released. It was confirmed that there was no such thing.

Further, in the present invention, the low transmittance elastic layer 40 partially lowers the light transmittance, and the brightness of the reflected light can be lowered. However, the stamp image acquisition device (D) of the present invention includes a sharpness correction unit 50 in the above-mentioned image acquisition unit (C) that increases the brightness ratio of the light reflected by the uneven pattern of the seal (S). Can be done. As a result, the sharpness correction unit 50 can increase the contrast of the image information to provide a clear stamp image.

In the stamp image acquisition device (D) having excellent sharpness and cushioning feeling of the present invention described above, a person having ordinary knowledge in the technical field to which the present invention belongs changes the technical idea and essential features of the present invention. It will be understood that it can be carried out in other concrete forms without doing so.

Therefore, it must be understood that the examples described above are exemplary in all respects and are not limiting, and the scope of the present invention is the patent described below rather than the detailed description above. It shall be construed that the scope of the present invention includes the meaning and scope of the claims, and all modified or modified forms derived from the equivalent concept thereof, which are indicated by the scope of claims.

D: Seal image acquisition device
S: Seal L: Light source
C: Image acquisition unit 10: Prism unit
11: Incident surface 12: Image transmission surface
13: Exit surface 20: Highly permeable elastic layer
30: Highly permeable film layer 40: Low permeable elastic layer 50: Sharpness correction unit

Claims (6)

A seal image acquisition device (D) for optically generating image information of a seal (S) on which an uneven pattern is formed.
The incident surface 11 on which the light emitted from the light source (L) is incident, the image transmission surface 12 on which the light reflected by the uneven pattern of the seal (S) is transmitted, and the reflected light are transferred to the image acquisition unit (C). Prism unit 10 including an exit surface 13 that emits light to
The highly transmissive elastic layer 20 provided in contact with the image transmitting surface 12 of the prism portion 10; and the concavo-convex pattern of the seal (S) provided on the upper portion of the highly transmissive elastic layer 20 are directly pressed. A stamp image acquisition device having excellent sharpness and cushioning feeling, which comprises a low-transparency elastic layer 40; which has a lower transmittance than the high-transparency elastic layer 20. A seal image acquisition device (D) for optically generating image information of a seal (S) on which an uneven pattern is formed.
The incident surface 11 on which the light emitted from the light source (L) is incident, the image transmission surface 12 on which the light reflected by the uneven pattern of the seal (S) is transmitted, and the reflected light to the image acquisition unit (C). Prism unit 10 including an exit surface 13;
The highly transparent elastic layer 20 provided in contact with the image transmitting surface 12 of the prism portion 10;
The highly permeable film layer 30 provided in contact with the highly permeable elastic layer 20; and the highly permeable film layer 30 provided in contact with the highly permeable film layer 30, and the uneven pattern of the seal (S) is directly pressed. A seal image acquisition device having excellent sharpness and cushioning feeling, which comprises a low-transparency elastic layer 40; which has a lower transmittance than the high-transparency elastic layer 20. The stamp image acquisition device having excellent sharpness and cushioning feeling according to claim 1 or 2, wherein the thickness of the low-transparency elastic layer 40 is 0.15 mm or more. The stamp image acquisition device having excellent sharpness and cushioning feeling according to claim 2, wherein the high-transparency film layer 30 has a thickness of 0.045 to 0.075 mm. The stamp image acquisition device having excellent sharpness and cushioning feeling according to claim 1 or 2, wherein the highly transparent elastic layer 20 has a thickness of 2.0 mm or more. The sharpness according to claim 1 or 2, wherein the image acquisition unit (C) includes a sharpness correction unit 50 that increases the brightness ratio of the light reflected by the uneven pattern of the seal (S). A seal image acquisition device with an excellent cushioning feeling.

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