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WO2018030377A1 - Dispositif de lecture d'informations - Google Patents

Dispositif de lecture d'informations Download PDF

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Publication number
WO2018030377A1
WO2018030377A1 PCT/JP2017/028696 JP2017028696W WO2018030377A1 WO 2018030377 A1 WO2018030377 A1 WO 2018030377A1 JP 2017028696 W JP2017028696 W JP 2017028696W WO 2018030377 A1 WO2018030377 A1 WO 2018030377A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
information recording
information
light
illumination
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.)
Ceased
Application number
PCT/JP2017/028696
Other languages
English (en)
Japanese (ja)
Inventor
千里 檜山
正弘 池田
大悟 小倉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Instruments Corp
Original Assignee
Nidec Sankyo Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2017126364A external-priority patent/JP2018026805A/ja
Application filed by Nidec Sankyo Corp filed Critical Nidec Sankyo Corp
Priority to CN201780047385.9A priority Critical patent/CN109565531A/zh
Priority to US16/323,658 priority patent/US10477059B2/en
Publication of WO2018030377A1 publication Critical patent/WO2018030377A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/107—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with manual scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment

Definitions

  • the present invention relates to an information reading apparatus that optically reads information recorded on an information recording medium.
  • Patent Document 1 an image reading apparatus that reads an image of an object to be read is known (for example, see Patent Document 1).
  • the image reading apparatus described in Patent Literature 1 includes a cover glass on which a reading object is placed.
  • a light source element and a light guide that irradiates the reading object with light emitted from the light source element are disposed below the cover glass.
  • an imaging optical system and a sensor IC are disposed under the cover glass. In this image reading apparatus, an image on the lower surface of the reading object placed on the cover glass is read.
  • the inventor of the present application is examining the structure of an information reading apparatus capable of optically reading information on both sides of an information recording medium that requires image information on both sides.
  • an information reading apparatus capable of optically reading information on both sides of an information recording medium that requires image information on both sides.
  • illumination for irradiating light on the upper surface of the information recording medium placed on the cover glass An optical system or the like for reading information on the upper surface of the information recording medium may be installed.
  • An object of the present invention is to provide an optical component and an information recording medium that constitute an optical system for reading information on the upper surface of the information recording medium in an information reading apparatus that optically reads information recorded on both sides of the information recording medium.
  • an information reading device capable of suppressing dust from adhering to illumination that irradiates light on the upper surface of the recording medium and suppressing occurrence of glare in the image on the upper surface of the read information recording medium. It is in.
  • an information reading apparatus of the present invention is an information reading apparatus that optically reads information recorded on an information recording medium, and includes a transparent mounting member on which the information recording medium is mounted; A first illumination for irradiating light on the lower surface of the information recording medium placed on the placement member; a second illumination for irradiating light on the upper surface of the information recording medium placed on the placement member; A first optical system for reading information recorded on the lower surface of the information recording medium placed on the mounting member; and an information for reading information recorded on the upper surface of the information recording medium placed on the mounting member; And an information recording medium for the information reading apparatus, the insertion direction side of the information recording medium to the information reading apparatus is the back side, and the extraction direction side of the information recording medium from the information reading apparatus is the front side.
  • the insertion / extraction direction of the When the direction orthogonal to the direction is the left-right direction, the upper surface portion disposed above the information recording medium placed on the placement member, the side surface portions connected to the left and right ends of the upper surface portion, and the upper surface portion A cover member having a back surface portion connected to the back end side, and the second optical system includes a reflection mirror that is disposed on the upper surface portion and is reflected by the upper surface of the information recording medium.
  • the lower end and the lower end of the back surface portion are in contact with the upper surface of the mounting member, and the mounting member and the cover member open the front surface and at least a part of the information recording medium is disposed in the box-shaped medium arrangement portion
  • the upper surface portion and the side surface portion are transparent, and the second illumination is disposed on both outer sides of the medium placement portion in the left-right direction, emitted from the second illumination, and transmitted through the side surface portion.
  • Information recording in which light is placed on a placement member Characterized in that it is irradiated on the upper surface of the body.
  • An arrangement portion is formed.
  • the reflection mirror on which the light reflected from the upper surface of the information recording medium is incident is disposed above the upper surface portion of the cover member.
  • the second illumination is disposed on both outer sides of the medium placement portion in the left-right direction, and the light emitted from the second illumination and transmitted through the transparent side surface is placed on the placement member.
  • the upper surface of the information recording medium is irradiated. Therefore, in the present invention, the second illumination increases the incident angle of the light applied to the upper surface of the information recording medium, thereby preventing the light reflected from the upper surface of the information recording medium from directly entering the image sensor. It becomes possible. Therefore, according to the present invention, it is possible to suppress the occurrence of glare in the image on the upper surface of the read information recording medium.
  • the second illumination is disposed on both outer sides of the medium placement portion in the left-right direction, and the light emitted from the second illumination and transmitted through the side surface portion is placed on the placement member. Since the upper surface of the information recording medium is irradiated, the operator who performs the operation of inserting and removing the information recording medium from the medium placement unit on the front side of the information reading device is exposed to the upper surface of the information recording medium from the second illumination. I don't feel it when the light is bright.
  • the information reading apparatus includes an imaging element disposed on the back side of the back surface portion, and the back surface portion is a light shielding portion that blocks light traveling toward the back side. If comprised in this way, it can prevent that the light irradiated from 1st illumination and the light irradiated from 2nd illumination inject into the image pick-up element arrange
  • the first illumination and the second illumination include a plurality of white LEDs that emit white light, a plurality of infrared LEDs that emit infrared light, a plurality of ultraviolet LEDs that emit ultraviolet light, and a plurality of LEDs.
  • the white light incident surface of the illumination lens is formed in a convex shape
  • the infrared light incident surface of the illumination lens is formed in a concave shape
  • the ultraviolet light incident surface of the illumination lens is formed. Is formed in a concave shape.
  • an optical component that constitutes an optical system for reading information on the upper surface of the information recording medium It is possible to suppress the adhesion of dust to the illumination that irradiates light on the upper surface of the medium, and it is possible to suppress the occurrence of glare in the read image on the upper surface of the information recording medium.
  • FIG. 1 is a perspective view of an information reading apparatus according to an embodiment of the present invention. It is a perspective view which extracts and shows the mounting member, cover member, 1st illumination, and 2nd illumination of the information reading apparatus shown in FIG. It is a front view of the mounting member, cover member, 1st illumination, and 2nd illumination which are shown in FIG. It is a side view for demonstrating the optical path inside the information reader shown in FIG. It is a side view for demonstrating operation
  • FIG. 3 is an exploded perspective view of the first illumination and the second illumination shown in FIG. 2. It is sectional drawing of the illumination lens shown in FIG.
  • FIG. 1 is a perspective view of an information reading apparatus 1 according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing the glass plate 3, the cover member 15, and the illuminations 4 and 5 extracted from the information reading apparatus 1 shown in FIG. 3 is a front view of the glass plate 3, the cover member 15, and the lights 4 and 5 shown in FIG.
  • FIG. 4 is a side view for explaining an optical path inside the information reading apparatus 1 shown in FIG.
  • FIG. 5 is a side view for explaining the operation of the shutter mechanism 14 of the information reading apparatus 1 shown in FIG.
  • the information reading apparatus 1 of this embodiment is an apparatus that optically reads information recorded on the information recording medium 2. That is, the information reading device 1 is a device that reads characters, figures, and the like printed on the information recording medium 2.
  • the information reader 1 is a manual reader, and the information recording medium 2 is inserted into the information reader 1 and the information recording medium 2 is removed from the information reader 1 manually.
  • the information reading apparatus 1 according to the present embodiment is a relatively small desktop reading apparatus.
  • the information recording medium 2 read by the information reading device 1 is a passport 2A and an ID card 2B (see FIG. 3). A photograph of the owner's face is printed on the passport 2A and the ID card 2B.
  • the passport 2A of this embodiment is an IC passport, and includes an IC page in which an IC chip and a communication antenna are built.
  • the ID card 2B is a non-contact type IC card.
  • the ID card 2B includes an IC chip and a communication antenna.
  • the ID card 2B is formed in a rectangular shape.
  • the passport 2A is inserted into the information reader 1 in an open state.
  • the thickness direction of the cover of the passport 2A inserted in the information reading device 1 in the opened state coincides with the vertical direction.
  • the thickness direction of the ID card 2B inserted in the information reading device 1 matches the vertical direction.
  • the passport 2A and the ID card 2B are inserted together in the information reading device 1, but actually, either the passport 2A or the ID card 2B is the information reading device 1. Inserted into.
  • the information recording medium 2 from the information reading apparatus 1 is defined with the insertion direction side (Y2 direction side in FIG. 1 and the like) of the information recording medium 2 to the information reading apparatus 1 being the “back” side or the “rear” side.
  • the drawing direction side (Y1 direction side in FIG. 1 and the like) is the “front” side.
  • the insertion / extraction direction of the information recording medium 2 with respect to the information reading device 1 (Y direction in FIG. 1 and the like) is the “front-rear direction”, and the direction perpendicular to the vertical direction and the front-rear direction (the X direction in FIG. 1) is “ Left and right direction ”.
  • the information reading device 1 is mounted on a transparent glass plate 3 on which an information recording medium 2 is placed, an illumination 4 for irradiating light on the lower surface of the information recording medium 2 placed on the glass plate 3, and the glass plate 3.
  • Illumination 5 for irradiating the upper surface of the information recording medium 2 placed thereon
  • an optical system 6 for reading information recorded on the lower surface of the information recording medium 2 placed on the glass plate 3, and the glass plate 3
  • An optical system 7 for reading information recorded on the upper surface of the placed information recording medium 2 an image sensor 8, and light passing through the optical system 6 is imaged on the image sensor 8 and passes through the optical system 7.
  • An imaging optical system 9 that forms an image on the image sensor 8 and a housing 10 in which these components are accommodated.
  • the image sensor 8 is a two-dimensional CMOS image sensor or a CCD image sensor.
  • the glass plate 3 of this form is a mounting member, the illumination 4 is a first illumination, and the illumination 5 is a second illumination.
  • the optical system 6 is a first optical system, and the optical system 7 is a second optical system.
  • the information reading apparatus 1 transmits part of the light that has passed through the optical system 6 toward the imaging optical system 9 and reflects part of the light that has passed through the optical system 7 toward the imaging optical system 9.
  • the light incident on the beam splitter 13 from the optical system 7 is blocked and placed on the glass plate 3.
  • a shutter mechanism 14 that blocks light incident on the beam splitter 13 from the optical system 6 when reading the information recorded on the upper surface of the information recording medium 2.
  • the beam splitter 13 and the shutter mechanism 14 are accommodated in the housing 10.
  • the information reading apparatus 1 includes an upper surface portion 15a disposed on the upper side of the information recording medium 2 placed on the glass plate 3, two side surface portions 15b connected to the left and right ends of the upper surface portion 15a,
  • the cover member 15 which has the back surface part 15c connected to the back end side of the upper surface part 15a is provided.
  • the cover member 15 of this embodiment is configured by an upper surface portion 15a, two side surface portions 15b, and a back surface portion 15c.
  • the cover member 15 is made of a transparent resin.
  • the cover member 15 is made of a transparent acrylic resin.
  • a light-shielding paint is applied to the back surface portion 15c, and the back surface portion 15c serves as a light blocking portion that blocks light traveling toward the back side.
  • the upper surface portion 15a and the side surface portion 15b are transparent.
  • the upper surface portion 15a is formed in a rectangular flat plate shape, and is arranged so that the thickness direction of the upper surface portion 15a coincides with the vertical direction.
  • the upper surface portion 15a is arranged so that the end surface of the upper surface portion 15a is parallel to the front-rear direction or the left-right direction.
  • the side surface portion 15b is formed in a rectangular flat plate shape, and is arranged so that the thickness direction of the side surface portion 15b matches the left-right direction.
  • the back surface portion 15c is formed in a rectangular flat plate shape, and is arranged so that the thickness direction of the back surface portion 15c matches the front-rear direction. Both left and right ends of the back surface portion 15c are connected to the back end of the side surface portion 15b.
  • the glass plate 3 is formed in a rectangular flat plate shape, and is arranged so that the thickness direction of the glass plate 3 coincides with the vertical direction. Moreover, the glass plate 3 is arrange
  • the lower end of the side surface portion 15 b and the lower end of the back surface portion 15 c are in contact with the upper surface of the glass plate 3.
  • the glass plate 3 and the cover member 15 form a box-shaped medium arrangement portion 16 in which the front surface is opened and at least a part of the information recording medium 2 is arranged.
  • the medium placement unit 16 is formed in a rectangular parallelepiped box shape. As shown in FIG. 1, a portion of the medium placement unit 16 other than the front opening is covered with a housing 10.
  • the entire ID card 2B is placed on the glass plate 3. That is, the entire ID card 2B is arranged in the medium arrangement unit 16. Further, a part of the passport 2 ⁇ / b> A is placed on the glass plate 3 such that the spine cover of the open passport 2 ⁇ / b> A is disposed on the front end side of the glass plate 3. That is, a part of the passport 2A is arranged in the medium arrangement unit 16.
  • the passport 2A is placed on the glass plate 3 so that the back surface of the cover on which personal information is recorded faces downward.
  • the width in the front-rear direction of the ID card 2B placed on the glass plate 3 is narrower than the width in the front-rear direction of the portion of the passport 2A placed on the glass plate 3. Further, the width in the left-right direction of the ID card 2B placed on the glass plate 3 is narrower than the width in the left-right direction of the passport 2A.
  • An antenna (not shown) for communicating with the communication antenna built in the ID card 2B is disposed below the glass plate 3. This antenna is arranged at a position where there is no trouble when optically reading information on the lower surface of the information recording medium 2 placed on the glass plate 3. Further, as shown in FIG. 1, an antenna 17 for communicating with a communication antenna built in the passport 2A is disposed on the front side of the glass plate 3. The antenna 17 is disposed below the glass plate 3. Depending on the specifications of the passport 2A, communication may be performed between the antenna disposed below the glass plate 3 and the antenna built in the passport 2A.
  • the information reading device 1 includes a camera 18 disposed on the front side and the upper surface side of the information reading device 1.
  • the camera 18 is arranged above the medium arrangement unit 16.
  • the optical axis of the camera 18 is inclined so as to go upward as it goes to the front side.
  • the camera 18 photographs the face of the person who performs the reading operation of the information recording medium 2.
  • FIG. 6 is an exploded perspective view of the lights 4 and 5 shown in FIG.
  • FIG. 7 is a cross-sectional view of the illumination lens 25 shown in FIG.
  • the lights 4 and 5 are provided with a plurality of light sources.
  • the illuminations 4 and 5 of this embodiment include, as light sources, a plurality of white LEDs 20 that emit white light, a plurality of infrared LEDs 21 that emit infrared light, and a plurality of ultraviolet LEDs 22 that emit ultraviolet light.
  • the white LED 20 is a surface emitting LED and emits diffused light.
  • the infrared LED 21 emits parallel light.
  • the ultraviolet LED 22 is a point light emission type wide angle light emitting LED.
  • the illuminations 4 and 5 include a substrate 24 on which a plurality of white LEDs 20, a plurality of infrared LEDs 21, and a plurality of ultraviolet LEDs 22 are mounted, white light emitted from the plurality of white LEDs 20 and infrared emitted from the plurality of infrared LEDs 21.
  • the illumination lens 25 which the light and the ultraviolet light which several ultraviolet LED22 injects enters is provided.
  • the substrate 24 is formed in an elongated rectangular flat plate shape.
  • substrate 24 is arrange
  • two infrared LEDs 21, one ultraviolet LED 22, one white LED 20, and two infrared LEDs 21 are arranged along the longitudinal direction of the substrate 24. Are implemented repeatedly in this order.
  • the two infrared LEDs 21 are arranged adjacent to each other in the short direction of the substrate 24.
  • a connector 26 is mounted on one surface of the substrate 24 on which the white LED 20, the infrared LED 21, and the ultraviolet LED 22 are mounted.
  • the illumination lens 25 is formed in an elongated and substantially rectangular parallelepiped shape.
  • the illumination lens 25 is fixed to one surface of the substrate 24 on which the white LED 20, the infrared LED 21, and the ultraviolet LED 22 are mounted.
  • the illumination lens 25 is fixed to the substrate 24 by rivets 27.
  • the illumination lens 25 receives white light emitted from the plurality of white LEDs 20, infrared light emitted from the plurality of infrared LEDs 21, and ultraviolet light emitted from the plurality of ultraviolet LEDs 22.
  • the information recording medium 2 is irradiated with light transmitted through the illumination lens 25.
  • the illumination lens 25 is provided with an incident surface 25a on which white light emitted from the white LED 20 is incident, incident surfaces 25b and 25c on which infrared light is emitted from the infrared LED 21, and an ultraviolet LED 22 is emitted. And an incident surface 25d on which the incident ultraviolet light is incident.
  • the incident surface 25a is formed in a convex shape so that uniform white light is irradiated onto the information recording medium 2 (see FIG. 7A).
  • the incident surface 25d is formed in a concave shape so that uniform ultraviolet light is irradiated onto the information recording medium 2 (see FIG. 7C).
  • the incident surfaces 25b and 25c are formed in a concave shape so that uniform infrared light is irradiated onto the information recording medium 2 (see FIG. 7B).
  • Infrared light emitted from one infrared LED 21 out of two infrared LEDs 21 arranged adjacent to each other in the short direction of the substrate 24 is incident on the incident surface 25b, and the other is incident on the incident surface 25c.
  • Infrared light emitted from the infrared LED 21 enters.
  • the depth of the recess where the incident surface 25b is formed is deeper than the depth of the recess where the incident surface 25c is formed.
  • the light exit surface of the illumination lens 25 is composed of a convex curved surface 25e and a concave curved surface 25f. Further, on the side surface of the illumination lens 25, a notch 25g for preventing interference between the illumination lens 25 and an electronic component such as the connector 26 mounted on the substrate 24 is formed.
  • the notch 25g is formed on the side surface of the illumination lens 25 along the longitudinal direction. Further, the notch 25g is formed in the entire area of the illumination lens 25 in the longitudinal direction.
  • the concave curved surface 25f is formed on the side of the cutout portion 25g, and the convex curved surface 25e is formed on the side where the cutout portion 25g is not formed.
  • the illumination 4 is disposed below the glass plate 3.
  • the information reading apparatus 1 is provided with the two illuminations 4, and the illumination 4 is arrange
  • the illumination 4 arranged on the right side of the glass plate 3 is arranged such that the substrate 24 of the illumination 4 is inclined upward and the illumination 4 arranged on the left side of the glass plate 3 is the substrate of the illumination 4. It arrange
  • the two illuminations 4 are arranged so that the illumination lens 25 faces the inner side in the left-right direction.
  • the illumination 4 is arranged such that the notch 25g of the illumination lens 25 faces upward, and the convex curved surface 25e is arranged below the concave curved surface 25f. That is, the convex curved surface 25e is disposed at a position farther from the information recording medium 2 than the concave curved surface 25f.
  • the illumination 4 irradiates light from the outside in the left-right direction toward the information recording medium 2 placed on the glass plate 3 and obliquely from below. Further, the light emitted from the illumination 4 and transmitted through the glass plate 3 is irradiated on the lower surface of the information recording medium 2 placed on the glass plate 3.
  • the light emitted from the convex curved surface 25e is irradiated to a position far from the illumination 4 of the information recording medium 2 in the left-right direction, and the light emitted from the concave curved surface 25f is emitted from the information recording medium 2 in the left-right direction.
  • the light is irradiated at a location close to the illumination 4.
  • the illumination 5 is disposed above the information recording medium 2 placed on the glass plate 3.
  • the information reading apparatus 1 includes two illuminations 5, and the illuminations 5 are arranged on both outer sides of the medium arrangement unit 16 in the left-right direction. That is, one of the two lights 5 is arranged on the right side of the side part 15b arranged on the right side, and the other of the two lights 5 is arranged on the left side. It is arranged on the left side of the part 15b.
  • the illumination 5 is arranged at a position deviating from the viewing angle of the image sensor 8.
  • the illumination 5 disposed on the right side of the side surface portion 15b disposed on the right side is disposed such that the substrate 24 of the illumination 5 is inclined downward and is disposed on the left side of the side surface portion 15b disposed on the left side. 5 is arranged such that the substrate 24 of the illumination 5 is inclined downwardly to the left.
  • the two illuminations 5 are arranged so that the illumination lens 25 faces the inner side in the left-right direction.
  • the illumination 5 is arranged such that the notch 25g of the illumination lens 25 faces downward, and the convex curved surface 25e is arranged above the concave curved surface 25f. That is, the convex curved surface 25e is disposed at a position farther from the information recording medium 2 than the concave curved surface 25f.
  • the illumination 5 irradiates light from the outside in the left-right direction toward the information recording medium 2 placed on the glass plate 3 and obliquely from above. Further, the light emitted from the illumination 5 and transmitted through the side surface portion 15 b is irradiated on the upper surface of the information recording medium 2 placed on the glass plate 3.
  • the light emitted from the convex curved surface 25e is irradiated on the information recording medium 2 at a location far from the illumination 5 in the left-right direction, and the light emitted from the concave curved surface 25f is emitted from the information recording medium 2 in the left-right direction.
  • the light is irradiated at a location near the illumination 5.
  • the infrared light emitted from the illuminations 4 and 5 is used for reading machine-readable printing information such as OCR characters.
  • the ultraviolet light emitted from the illuminations 4 and 5 is used for reading print information necessary for authenticity determination of the information recording medium 2. Specifically, the ultraviolet light emitted from the illuminations 4 and 5 is used for reading print information with an invisible fluorescent coloring ink.
  • the optical system 6 includes three reflection mirrors (total reflection mirrors) 30, 31, and 32 formed in a rectangular flat plate shape.
  • the reflection mirror 30 is larger than the reflection mirror 31, and the reflection mirror 31 is larger than the reflection mirror 32.
  • the reflection mirrors 30 and 31 are disposed below the glass plate 3.
  • the reflection mirror 30 is disposed below the passport 2 ⁇ / b> A placed on the glass plate 3.
  • the reflection mirror 31 is arranged at substantially the same height as the reflection mirror 30 and is arranged behind the reflection mirror 30.
  • the reflection mirror 32 is arranged behind the medium arrangement unit 16. That is, the reflection mirror 32 is disposed on the rear side of the back surface portion 15 c of the cover member 15.
  • the reflection mirror 32 is disposed on the upper side of the reflection mirror 31.
  • the reflection mirrors 30 to 32 are arranged in a state inclined at a predetermined angle with respect to the vertical direction. Specifically, as shown in FIG. 4, the reflection mirrors 30 to 32 are arranged in a state inclined at a predetermined angle with respect to the vertical direction when viewed from the left-right direction. The reflection mirror 30 is inclined so as to go downward as it goes back, and the reflection mirrors 31 and 32 are inclined so as to go upward as it goes back.
  • the inclination angle of the reflection mirrors 30 to 32 with respect to the vertical direction is about 45 °.
  • the light reflected by the lower surface of the information recording medium 2 placed on the glass plate 3 enters the reflection mirror 30.
  • the light reflected by the reflection mirror 30 enters the reflection mirror 31, and the light reflected by the reflection mirror 31 enters the reflection mirror 32.
  • the optical axis of the light that is reflected by the lower surface of the information recording medium 2 and goes downward is bent backward. Further, in the reflection mirror 31, the optical axis of the light reflected by the reflection mirror 30 toward the rear side is bent upward, and in the reflection mirror 32, the optical axis of the light reflected by the reflection mirror 31 and directed upward is the rear side. Can be folded.
  • the optical system 7 includes two reflection mirrors (total reflection mirrors) 33 and 34 formed in a rectangular flat plate shape.
  • the reflection mirror 33 is larger than the reflection mirror 34.
  • the reflection mirrors 33 and 34 are disposed above the information recording medium 2 placed on the glass plate 3.
  • the reflection mirror 33 is disposed on the upper side of the ID card 2 ⁇ / b> B placed on the glass plate 3.
  • the reflection mirror 33 is disposed on the upper side of the upper surface portion 15a of the cover member 15 (that is, on the upper side of the medium placement unit 16).
  • the reflection mirror 34 is arranged at substantially the same height as the reflection mirror 33 and is arranged behind the glass plate 3 (that is, behind the medium arrangement unit 16).
  • the reflection mirrors 33 and 34 are arranged in a state inclined at a predetermined angle with respect to the vertical direction. Specifically, as shown in FIG. 4, the reflection mirrors 33 and 34 are arranged in a state inclined at a predetermined angle with respect to the vertical direction when viewed from the left-right direction.
  • the reflection mirror 33 is inclined so as to be directed upward as it goes to the rear side
  • the reflection mirror 34 is inclined so as to be directed downward as it is directed to the rear side.
  • the inclination angle of the reflection mirrors 33 and 34 with respect to the vertical direction is approximately 45 °.
  • the light reflected by the upper surface of the information recording medium 2 placed on the glass plate 3 is incident on the reflection mirror 33.
  • the light reflected by the reflection mirror 33 is incident on the reflection mirror 34.
  • the optical axis of the light reflected from the upper surface of the information recording medium 2 and going upward is bent backward, and in the reflection mirror 34, the optical axis of the light reflected by the reflection mirror 33 and going backward is changed. Folded down.
  • the imaging optical system 9 includes an imaging lens 35.
  • the imaging lens 35 is disposed behind the reflection mirror 32. That is, the imaging lens 35 is disposed on the rear side of the back surface portion 15 c of the cover member 15. Further, the imaging lens 35 is disposed behind the reflecting mirror 34.
  • the image sensor 8 is disposed behind the imaging lens 35. That is, the image sensor 8 is arranged on the back side (back side) of the back surface portion 15c. The image sensor 8 is arranged so that the image pickup surface of the image sensor 8 faces the front side.
  • the beam splitter 13 is formed in a rectangular flat plate shape.
  • the beam splitter 13 of this embodiment is a half mirror having the same light transmittance and reflectance.
  • the beam splitter 13 is disposed between the reflection mirror 32 and the imaging lens 35 in the front-rear direction. That is, the beam splitter 13 is disposed behind the reflecting mirror 32 and in front of the imaging lens 35. Further, the beam splitter 13 is disposed below the reflection mirror 34.
  • the beam splitter 13 is disposed in a state inclined at a predetermined angle with respect to the vertical direction. Specifically, as shown in FIG. 4, the beam splitter 13 is disposed in a state inclined at a predetermined angle with respect to the vertical direction when viewed from the left-right direction. The beam splitter 13 is inclined so as to go down as it goes back. The inclination angle of the beam splitter 13 with respect to the vertical direction is approximately 45 °. The beam splitter 13 transmits half of the light reflected by the reflection mirror 32 toward the imaging lens 35 and reflects half of the light reflected by the reflection mirror 34 toward the imaging lens 35.
  • the shutter mechanism 14 includes a first light shielding position 37A (see FIG. 5B) that blocks an optical path between the optical system 6 and the beam splitter 13 (that is, an optical path between the reflecting mirror 32 and the beam splitter 13). It is movable between a second light shielding position 37B (see FIG. 5A) that blocks an optical path between the optical system 7 and the beam splitter 13 (that is, an optical path between the reflecting mirror 34 and the beam splitter 13).
  • a shutter 37 is provided.
  • the shutter 37 includes a light blocking portion 37 a that blocks an optical path between the reflection mirrors 32 and 34 and the beam splitter 13.
  • the shutter mechanism 14 includes a shutter drive mechanism that moves the shutter 37 between the first light shielding position 37A and the second light shielding position 37B.
  • the shutter drive mechanism includes a lever member 39 to which the shutter 37 is fixed, a solenoid (not shown) that rotates the lever member 39, and the like.
  • the lever member 39 is rotatable with the left-right direction as the axis direction of rotation.
  • the passport 2A is placed on the glass plate 3 so that the back surface of the cover on which the personal information is recorded faces downward.
  • the illumination 4 emits light, and the information recorded in the passport 2A is optically read.
  • the shutter 37 is disposed at the second light shielding position 37B. Moreover, the illumination 5 does not irradiate light.
  • the illumination 4 irradiates light and the lower surface of the ID card 2B.
  • the information recorded in is read optically.
  • the shutter 37 is disposed at the second light shielding position 37B, and the illumination 5 does not emit light.
  • the shutter 37 moves to the first light shielding position 37A, and the illumination 5 emits light, so that the information recorded on the upper surface of the ID card 2B is optical. To be read. At this time, the illumination 4 does not emit light.
  • the information recorded on the lower surface of the ID card 2B may be read after the information recorded on the upper surface of the ID card 2B is read.
  • the information recorded on the ID card 2B is read, for example, the information recorded on the lower surface of the ID card 2B and the information recorded on the upper surface are read in several tens of milliseconds.
  • the glass plate 3 and the cover member 15 form the box-shaped medium arrangement portion 16 in which the front surface is opened and at least a part of the information recording medium 2 is arranged.
  • the illuminations 4 and 5 and the optical systems 6 and 7 are arranged outside the medium arrangement unit 16. Therefore, in this embodiment, dust is prevented from entering from the place where the information recording medium 2 is arranged in the medium arrangement unit 16 to the place where the illuminations 4 and 5 are arranged and the place where the optical systems 6 and 7 are arranged. It becomes possible to do. Therefore, in this embodiment, it is possible to suppress the dust from adhering to the reflection mirrors 30 to 34 and the illuminations 4 and 5 constituting the optical systems 6 and 7.
  • the part other than the front opening of the medium placement unit 16 is covered with the casing 10, and the illuminations 4 and 5 and the optical systems 6 and 7 are accommodated in the casing 10. Therefore, in this embodiment, dust enters from the place other than the place where the information recording medium 2 is placed in the medium placement unit 16 to the place where the illuminations 4 and 5 are placed and the place where the optical systems 6 and 7 are placed. It is also possible to prevent this. Therefore, in this embodiment, it is possible to effectively suppress the adhesion of dust to the reflection mirrors 30 to 34 and the illuminations 4 and 5 constituting the optical systems 6 and 7.
  • the reflection mirror 33 on which the light reflected by the upper surface of the information recording medium 2 is incident is above the information recording medium 2 placed on the glass plate 3 (specifically, above the ID card 2B).
  • the illumination 5 is arrange
  • transmitted the transparent side part 15b is mounted in the glass plate 3
  • the top surface of the recording medium 2 is irradiated. Therefore, in this embodiment, the incident angle of the light that the illumination 5 irradiates the upper surface of the information recording medium 2 is increased to prevent the light reflected from the upper surface of the information recording medium 2 from directly entering the image sensor 8. It becomes possible to do. Therefore, in this embodiment, it is possible to suppress the occurrence of glare in the read image on the upper surface of the information recording medium 2.
  • the illumination 5 is disposed on both outer sides of the medium placement unit 16 in the left-right direction, and the light emitted from the illumination 5 and transmitted through the side surface 15b is placed on the glass plate 3. Since the upper surface of the recording medium 2 is irradiated, an operator who performs an insertion operation and an extraction operation of the information recording medium 2 with respect to the medium arrangement unit 16 on the front side of the information reading device 1 can perform an operation on the upper surface of the information recording medium 2 from the illumination 5. You don't feel that the light shining on is dazzling.
  • the back surface portion 15c of the cover member 15 is a light shielding portion that blocks light traveling toward the back side, so that the imaging element 8 disposed on the back side of the back surface portion 15c is illuminated from the illuminations 4 and 5. It is possible to prevent the incident light from directly entering.
  • white light emitted from the plurality of white LEDs 20 mounted on the substrate 24, infrared light emitted from the plurality of infrared LEDs 21, and ultraviolet light emitted from the plurality of ultraviolet LEDs 22 are incident on the common illumination lens 25. is doing.
  • the configuration of the information reading apparatus 1 is compared with a case where an illumination lens for incident white light, an illumination lens for incident infrared light, and an illumination lens for incident ultraviolet light are provided separately. Can be simplified.
  • the incident surface 25a of the illumination lens 25 may be formed in a flat shape or a concave shape. good.
  • the incident surfaces 25b and 25c of the illumination lens 25 may be formed in a flat shape or a convex shape. Also good.
  • the incident surface 25d of the illumination lens 25 may be formed in a flat shape or a convex shape.
  • the light emission surface of the illumination lens 25 may be configured by a convex curved surface.
  • the beam splitter 13 reflects a part of the light that has passed through the optical system 6 toward the imaging optical system 9 and a part of the light that has passed through the optical system 7 toward the imaging optical system 9.
  • the optical systems 6 and 7 may be configured to transmit light.
  • the optical system 6 includes two reflecting mirrors, and the optical system 7 includes three reflecting mirrors.
  • the number of reflection mirrors provided in the optical systems 6 and 7 may be four or more.
  • the illuminations 4 and 5 may include a light guide member instead of the illumination lens 25.
  • the imaging optical system and the imaging element into which the light that has passed through the optical system 6 enters, and the imaging optical system and the imaging element into which the light that has passed through the optical system 7 enter are individually provided. May be.
  • the information reading apparatus 1 may include a transparent resin plate such as an acrylic plate instead of the glass plate 3.
  • the information recording medium 2 may not include an IC chip. In this case, the antenna disposed below the glass plate 3 and the antenna 17 are not necessary.
  • the information recording medium 2 may be a medium other than the passport 2A and the ID card 2B.
  • the information recording medium 2 may be a driver's license.
  • the information reading apparatus 1 is a manual reading apparatus. However, the information reading apparatus to which the configuration of the present invention is applied is a medium conveying type reading apparatus having an information recording medium conveying mechanism. There may be.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

L'invention porte sur un dispositif de lecture d'informations qui permet : la suppression de la fixation de la poussière à une lumière d'éclairage qui applique de la lumière sur la surface supérieure d'un support d'enregistrement d'informations, et la suppression de la fixation de la poussière sur des composants optiques qui constituent un système optique pour lire des informations sur la surface supérieure du support d'enregistrement d'informations ; et la suppression de l'apparition d'un éblouissement sur une image lue sur la surface supérieure du support d'enregistrement d'informations. Dans ce dispositif de lecture d'informations, l'extrémité inférieure d'un élément de recouvrement (15) est en contact avec la surface supérieure d'un élément de montage (3) où est monté un support d'enregistrement d'informations (2), et où une partie de disposition de support en forme de boîte (16), dont la surface avant est ouverte et dans laquelle le support d'enregistrement d'informations (2) est disposé, est formée par l'élément de montage (3) et l'élément de recouvrement (15). Un miroir de réflexion, sur lequel la lumière réfléchie sur la surface supérieure du support d'enregistrement d'informations (2) est incidente, est disposé sur le côté supérieur d'une partie de surface supérieure (15a) de l'élément de recouvrement (15). Une lumière d'éclairage (5) qui applique de la lumière sur la surface supérieure du support d'enregistrement d'informations (2) est disposée à l'extérieur des deux côtés de la partie de disposition de support (16) dans une direction droite-gauche, et la lumière émise par la lumière d'éclairage (5) et ayant été transmise à travers une partie de surface latérale transparente (15b) de l'élément de recouvrement (15) est appliquée sur la surface supérieure du support d'enregistrement d'informations (2).
PCT/JP2017/028696 2016-08-08 2017-08-08 Dispositif de lecture d'informations Ceased WO2018030377A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780047385.9A CN109565531A (zh) 2016-08-08 2017-08-08 信息读取装置
US16/323,658 US10477059B2 (en) 2016-08-08 2017-08-08 Information reading device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201662371904P 2016-08-08 2016-08-08
US62/371,904 2016-08-08
JP2017126364A JP2018026805A (ja) 2016-08-08 2017-06-28 情報読取装置
JP2017-126364 2017-06-28

Publications (1)

Publication Number Publication Date
WO2018030377A1 true WO2018030377A1 (fr) 2018-02-15

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Application Number Title Priority Date Filing Date
PCT/JP2017/028696 Ceased WO2018030377A1 (fr) 2016-08-08 2017-08-08 Dispositif de lecture d'informations

Country Status (1)

Country Link
WO (1) WO2018030377A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627169A (en) * 1979-08-10 1981-03-16 Canon Inc Optical reader of image
JPS60214349A (ja) * 1984-04-10 1985-10-26 Sharp Corp 原稿走査装置
JPH10257245A (ja) * 1997-03-13 1998-09-25 Minolta Co Ltd 画像読取装置
JP2007188387A (ja) * 2006-01-16 2007-07-26 Matsushita Electric Ind Co Ltd 情報媒体読取装置
JP2013138383A (ja) * 2011-11-30 2013-07-11 Panasonic Corp 読取装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627169A (en) * 1979-08-10 1981-03-16 Canon Inc Optical reader of image
JPS60214349A (ja) * 1984-04-10 1985-10-26 Sharp Corp 原稿走査装置
JPH10257245A (ja) * 1997-03-13 1998-09-25 Minolta Co Ltd 画像読取装置
JP2007188387A (ja) * 2006-01-16 2007-07-26 Matsushita Electric Ind Co Ltd 情報媒体読取装置
JP2013138383A (ja) * 2011-11-30 2013-07-11 Panasonic Corp 読取装置

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