JP3063418U - Non-contact counting device for translucent card using optical sensor - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To project light at a certain light projection angle on a translucent card body and to reflect light reflected from the translucent card body at an angle different from the light projection angle. Provided is a non-contact counting device for a translucent card using an optical sensor that counts a translucent card by receiving light at a position. Light from a light projecting device is transmitted to a translucent card body having a translucent material made of a translucent material that has an opaque member made of an opaque material that does not transmit light on a side surface and transmits a part of light. By projecting light at a certain projection angle, entering and once diffusing into the translucent member of the translucent card body, receiving only reflected light that is irregularly reflected inside, and counting the received light The translucent card body is counted as a translucent card body using an optical sensor.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a non-contact counting device using an optical sensor for an object formed of a translucent card body having an opaque member that does not transmit light and a translucent member that transmits light to some extent, and in particular, it will rapidly spread in the future. This is a kind of plastic card which is considered to be a plastic card. An IC chip body of an integrated circuit (IC) having a memory circuit is embedded in a plastic portion of a translucent member of the plastic card, and opaque members are provided on both sides of the card. The present invention relates to a non-contact counting device suitable for counting a translucent card body generally referred to as an IC card, wherein the counting device is integrally adhered.

[0002]

[Prior art]

 This type of plastic card, which is generally used as a telephone card, credit card, prepayment card, cash card, etc., has a specific matter magnetically recorded on the surface of one side of the card. This is a so-called magnetic card made by sticking or embedding a magnetic recording tape or the like, and the card itself is made of an opaque member that is a single material sheet. The counting device uses a light sensor that uses light so as not to affect the magnetically recorded contents of the magnetic card. Focusing on the differences, the amount of received reflected light is detected, and this is electrically amplified to count the number of times the detected reflected light is received or the number of times the received light is changed. It was to count the card by.

In a conventional reflection-type device using a photoelectric sensor in a device for counting cards of this type using light, a light-emitting device and a light-receiving device have the same angle of symmetry with a certain angle with respect to the card. Position, and the light projected on the card receives the reflected light reflected from the surface of the card, detects the amount of reflected light received, and electrically amplifies it. Cards were counted by counting the number of changes in the amount of received light.

[0004] In a coaxial type using a photoelectric sensor in a conventional device for counting such cards using light, a coaxial type device using a photoelectric sensor has a half-angle at a constant inclination angle on a projection line of a projection light source of a projector. A mirror is provided, and a light receiver is arranged in the direction perpendicular to the projected light beams.The light projected on the card is reflected by the surface of the card and the reflected light is bent at right angles by a half mirror, and the light is received by the light receiver. The card is counted by receiving light, detecting the amount of received light, electrically amplifying the received light, and counting the presence or absence of detected light or the number of changes in the amount of received light.

[0005] Since this type of conventional card is a card made of a single material made of plastic, the sensor light emitted for counting the card is projected on all surfaces of the card. Since the light is reflected, the emitted sensor light has the property of being received as reflected light and can be measured.

However, the translucent card body to be counted in the present invention is composed of a translucent member having an opaque member adhered to the side surface, that is, a plastic of the opaque member and a translucent member. Plastic is a type of translucent plastic card made of such a translucent card body, especially a plastic card that is expected to be rapidly spread in the future. A so-called semi-transparent card IC card in which an integrated circuit (IC) is embedded in the plastic part of a plastic card made of a semi-transparent member, and the plastic of an opaque member is integrally adhered to both sides of the card by hot melt bonding. Will rapidly expand its fields of use in various financial institutions, distribution sectors, public transport sectors, highway toll roads, and IC Phone cards are expected to be used in a wide variety of fields of use, and this kind of card, which is expected to be rapidly spread and used, requires strict quantity control. However, at present, no device has been provided for counting the number of translucent card bodies by using an optical sensor using light in order not to affect the memory circuit of this type of built-in integrated circuit. .

[0007]

[Problems to be solved by the invention]

 The problem to be solved by the present invention is that the conventional telephone cards, credit cards, plastic cards such as payment cards, cash cards, and the like have a magnetic tape magnetically recording necessary items attached to the side of the card. Or it is a magnetic card that is buried or the like, but since this kind of plastic card is made of a single material plastic, it is necessary to count the number of this kind of card Photoelectric sensors using non-contact light are used in order not to affect the recorded magnetic tape.However, in these conventional photoelectric sensors, both the reflection type photoelectric sensor and the coaxial type photoelectric sensor are used. In other words, the light is projected onto the card and the reflected light on the surface of the card is received, and the number of times the reflected light is received or the number of changes in the amount of the reflected light is detected. Since the number of cards is counted, the translucent card body of the present invention includes an opaque member made of an opaque material made of plastic that does not transmit light and a plastic that transmits light to some extent from the surface of the card. The semi-transparent material made of the material is bonded together by the hot-melt bonding method.Therefore, depending on the conventional card counting device, the number of plastic cards in the translucent card body of the present invention may be different. There is a problem that it cannot be applied to the counting of

Since this type of conventional card is made of a single material of plastic, the light projected on the card is reflected on the surface of the card. Therefore, if the number of times the reflected light is received is detected. Since the projected light is not reflected at the boundary between the cards, the number of cards can be easily counted by using the light by detecting the number of times the reflected light is received. As the optical sensor, either a reflection type in which the projector and the receiver are arranged at symmetrical positions at a certain angle, or a coaxial type using a half mirror to detect, electrically amplify and count, are used. In the case of the optical sensor described above, the focal point a of the projector lens and the focal point b of the photodetector lens must be coincident and at the same position. Is all Is detected.

In the translucent card body of the present invention, an opaque member made of an opaque material that does not transmit light is integrally attached to a side surface of the translucent material made of a translucent material that transmits light to some extent by hot melt bonding. In the translucent card body of a plastic card that is worn, part of the light projected on the translucent member is reflected on the surface of the card, but part of the light is incident inside the translucent member and attenuated The light that once enters the semi-transparent member is attenuated inside the semi-transparent member, is reflected while diffusely reflected, and radiates as reflected light from the inside of the semi-transparent member to the outside. Therefore, a large change in the amount of reflected light received by the photodetector occurs, and the conventional photoelectric sensor by counting the number of times the reflected light is received by the photoreceiver. Depending on the server, there is a problem that the translucent card body of the present invention cannot be counted, and cannot be solved by the technical configuration of the conventional counting device.

For example, in a conventional counting device for counting the number of cards, the light projected from the light projector to the object using a generally used light reflection type optical sensor is used as the object to be measured. Using a conventional counting device of this type, the presence or absence of reflected light reflected on the surface of the object is detected by a light receiver, and the focal point of the light emitter and the focal point of the light receiver are arranged so as to match. By counting the number of translucent card bodies of the present invention, as shown in FIG. 7, the accuracy of light reception by the light receiver is reduced, and the light emitted by the light emitter is reflected on the surface of the translucent card body by all specular reflection. When light is received by the light receiver, the light emitted from the light emitter is reflected at the semi-transparent member by reflecting part of the light incident on the inside of the semi-transparent member and specularly reflected on the surface of the semi-transparent member. The amount of light is significantly attenuated, All the reflected light will be received by the receiver regardless of the magnitude of the emitted light, that is, the projection of the light that is specularly reflected on both the surface of the opaque member and the surface of the translucent member. With the same angle of reflection as the light angle, the light receiver receives all the reflected light, so that the received light voltage output waveform does not change at the position of the opaque member or at the position of the translucent member. Since the position of the opaque member and the position of the translucent member are counted as one and the same, if a plurality of translucent card bodies overlap each other and come into close contact with each other, a plurality of semi-transparent cards will be counted. Even a transparent card was counted as one, which resulted in a problem that accurate counting was not possible.

Furthermore, in a conventional card counting device of this type, light emitted from a light projector to an object to be measured is reflected on the surface of the object by utilizing a generally used light reflection type optical sensor. The presence or absence of the reflected light is detected by the light receiver, and the translucent light of the present invention is used by using this kind of conventional counting device, which is arranged so that the focus of the light emitter and the focus of the light receiver coincide. By counting the number of cards, as shown in Fig. 6, the accuracy of light reception by the light receiver is increased to receive only reflected light having a certain amount of reflected light, and a part of the light is translucent. It is incident on the inside of the member and becomes internally transmitted diffused light, and the reflected light from the translucent member that has only the attenuated light amount is not received, and it is the same as the case of non-reflected light at the boundary between the translucent card bodies , The received light voltage output waveform does not change At the position where no light was received, counting is performed assuming that there is no card body.Therefore, at the positions of the opaque members on both sides of the translucent card body, counting is performed assuming that there is one card body. There was a problem that accurate counting was not possible.

The present invention solves the above-mentioned conventional problems, and has a translucent member made of a translucent material that has at least one side surface made of an opaque material that does not transmit light and that transmits light to some extent. The present invention relates to a device for counting plastic cards made of a transparent card body using light, and in particular, is a type of plastic card that is expected to rapidly spread in the future, and an integrated circuit is mounted on the plastic portion of the translucent member of the plastic card. (IC) is buried, and an opaque member is integrally adhered to both sides of the card by a hot melt bonding method. The counting is performed using the emitted light, that is, the light is projected onto the translucent card body at a certain light projection angle, and is emitted from the translucent card body. An object of the present invention is to provide a non-contact counting device for a translucent card body using an optical sensor by receiving reflected light at an angle different from the projection angle.

[0013]

[Means for Solving the Problems]

 In order to solve such a conventional problem, the present invention provides a translucent card body using an optical sensor, wherein the focal point of an optical sensor and the focal point of an optical receiver are arranged so as to be inconsistent. In a non-contact manner as a counting device.

The non-contact counting device for a translucent card body using the optical sensor of the present invention has an opaque member made of an opaque material that does not transmit light on the side surface, and is made of a translucent material that transmits a part of light. The light from the light-emitting device is projected onto the translucent card body made of the translucent member of the above at a certain light projection angle, enters, temporarily enters the translucent member of the translucent card body, and diffuses. A translucent card body using an optical sensor in a non-contact manner, wherein the translucent card body is counted by receiving only the reflected light that is irregularly reflected by the light source and counting the received light. It becomes as.

The translucent counting device using the optical sensor according to the present invention by non-contacting the translucent card body is composed of a translucent material made of a translucent material having an opaque material made of an opaque material on at least one side. A light projecting device is provided so that light can be projected onto the card body at a certain light projection angle, and only the reflected light that enters the translucent card body and is reflected from the translucent card body can be received. The translucent card body is provided so that the translucent card body can be counted by counting the reflected light reflected from the inside of the translucent card body by the light receiving device.

Further, the non-contact counting device for the translucent card body using the optical sensor according to the present invention comprises a translucent material made of a translucent material having an opaque material integrally formed on at least one side surface. The semi-transparent card bodies are arranged so as to be sequentially transportable, and light can be projected onto the semi-transparent card body by a light projecting device at a predetermined light projecting angle. A light-receiving device is arranged to receive only reflected light that enters the transparent member and is reflected from the inside of the translucent member, and the number of times the light-receiving device receives reflected light reflected from the inside of the translucent member. By counting the number of translucent card bodies.

Furthermore, in the non-contact counting device for translucent bodies using the optical sensor of the present invention, the translucent card body has an integrated circuit (IC) embedded in the translucent member and opaque on both sides. It is a flat card body having an opaque member made of a material.

[0018]

[Embodiment of the invention]

 The translucent card body in the present invention has a translucent material milky or pale color that allows light to pass to some extent between opaque members made of a thin plastic sheet made of opaque material that does not transmit light at all. An integrated circuit (IC circuit) having a memory circuit in a translucent member made of plastic, which is integrally provided by a hot melt bonding method, and which is a translucent member of milky or pale color, which is a plastic material having a translucent color. The entire peripheral surface of the chip body is buried during hot melt bonding so as to surround it.

As described above, the translucent card body according to the present invention has an opaque material on both sides of a translucent member made of a translucent material made of plastic having a milky white or pale color in which an integrated circuit of a chip body is embedded. An opaque member, which is an electrical insulator made of a thin plastic sheet made of plastic, is formed into an integrated flat card body by hot-melt bonding, and a semi-transparent member plastic with embedded integrated circuits and hot-melt bonding A wide range of plastics, such as thermosetting plastic urea resin, melamine resin, and thermoplastic plastics such as polyethylene resin, vinyl chloride resin, and acrylic resin, are used. The opaque member is preferably electrically insulative, retains opacity even if it is thin to a certain extent, and preferably has some elasticity. Because it is desirable to be inexpensive, vinyl chloride resin or polyethylene resin is preferred.

The size and thickness of the translucent card body are appropriately formed according to the purpose and method of use. For example, a cash card or a cash card used for an automatic cash withdrawal computer in a financial institution such as a bank. A telephone card or the like used for a public telephone is formed on a card body having a thickness of about 0.5 to 0.8 mm and a size of about 55 mm wide and 85 mm long.

A translucent card body of a flat plate-shaped body in which an integrated circuit of a chip body is buried in a translucent member has a large number of translucent card bodies formed in the same shape, and a photoelectric sensor is used by a belt conveyor. The number is measured and counted while being sequentially transferred to the counting device of the present invention.

The translucent card counting device according to the present invention includes a light projecting device for projecting a certain amount of light, and the light projected by the light projecting device is reflected from the translucent card device, which is an object to be measured. A light-receiving device for receiving light, the light-emitting device comprising a light-receiving device and a light-receiving device, wherein the light to be projected is a focal point a and a focal point b of both lenses. Is different from the conventional photoelectric sensor of this type, that is, the focal point a of the lens of the projector and the focal point of the lens of the receiver and the focal point b of the lens of the projector and the focal point b of the lens of the receiver are different from each other. Is provided so that the two do not coincide with each other. That is, by arranging the lenses so that the focal points a ≠ b of the lenses, the light projected from the projector onto the translucent card body can be used. Light reflected from the surface is reflected by the receiver. The light projected on the surface of the translucent card body is not reflected, and a part of the light enters the translucent member of the translucent card body and is transmitted and diffused without being reflected entirely. Then, while being attenuated inside the translucent member, the reflected light irregularly reflected outward from inside the translucent member is received by the light receiver.

In this case, the focal point of the lens of the light receiver with respect to the translucent card body, ie, the light receiving optical axis angle is not the same as the focal point of the lens of the light projector, ie, the light projecting optical axis angle, and the focal points of the two do not coincide. By setting the light receiving optical axis angle of the light receiving device and the light emitting optical axis angle of the light emitting device to be inconsistent in this way, light can be projected from the light emitting device to the translucent card body. The reflected light on the surface of the translucent card body is not directly received by the light receiver as it is, that is, without being affected by the reflected light on the surface of the translucent card body. Part of the light projected on the surface of the translucent member of the body is not reflected entirely, but enters part of the translucent member and is transmitted and diffused, attenuated and diffusely reflected inside the translucent member. Light reflected from the inside of the translucent member to the outside Are received by the light receiver.

A reflection type sensor head unit integrally provided with a light emitter for projecting light of sensor light and a light receiver for receiving reflected sensor light, which are generally used as an optical sensor for an object of this kind. The reflection type optical sensor is an optical fiber sensor having an effective detection distance of about 1 mm to about 3 mm, which is generally used as a sensor for detecting a plastic plate, thin paper, or the like. The sensor light projected from the light projector is projected on the translucent card body by the light projecting circuit of the reflection type optical sensor, enters the translucent member of the translucent card body, and becomes semi-transparent. The light receiving device receives the reflected light reflected from inside the transparent member, and is provided so as to be counted by a counting device.

The reflection type optical sensor may be a reflection type optical fiber sensor provided integrally with a light emitting device and a light receiving device, or a reflection type optical device sensor provided with a light emitting element and a light receiving element. As long as the detection distance capability is provided, various types of reflection type optical sensors using a known visible light sensor can be used.

[0026]

【Example】

 A description will be given based on the drawing showing a non-contact counting device for a translucent card body using the optical sensor of the present invention. 1 to 5 show a non-contact counting device for a translucent card body using the optical sensor of the present invention. The counting device 1 includes a power supply circuit 2, a light emitting circuit 3, a light emitting device 5, A sensor head unit 4 including a light receiver 6, an amplification unit 7 including a pre-amplifier 8 and a main amplifier 9, a counter 12 for counting based on a received light voltage waveform 11 displayed by a voltage comparison circuit 10, It consists of

The counting by the non-contact of the translucent card body 13 by the counting device 1 of the present invention is performed by the sensor light from the light emitting device 5 provided in the sensor head unit 4 via the light emitting circuit 3 through the power supply circuit 2 and the light emitting circuit 3. Is projected on the translucent card body 13 and the light projected on the translucent card body 13 enters the translucent member 14 of the translucent card body 13 to be transmitted and diffused inside. Only reflected light, which is transmitted through the interior while being irregularly reflected and partially reflected outward from the interior of the translucent member 14 again, is received by the light receiver 6 provided in the sensor head section 4. The reflected light received by the light receiver 6 is converted into a current, amplified through the pre-amplifier 8 and the main amplifier 9 of the amplifying device 7, and displayed as the received light voltage waveform 11 by the voltage comparison circuit 10, thereby receiving the reflected light. Change in voltage waveform 11 The counter 12 is provided so as to read and count the number of translucent cards 13 as the object to be measured.

The translucent card 13 as an object to be measured is provided on both sides of a translucent member 14 made of a plastic milky translucent material that transmits light to a certain extent. An opaque member 15 made of opaque material made of vinyl chloride is integrally adhered by a hot melt bonding method, and is formed into a flat card body having a width of about 54 mm, a length of about 86 mm, and a thickness of about 0.5 mm. In the translucent member 14 of the translucent card body 13, an IC chip body (not shown), which is a chip body of an integrated circuit having a memory circuit, is embedded by hot melt. The contents of the electronic memory are read from an IC chip of an integrated circuit having a memory circuit embedded in the translucent member 14, and the contents are read out from a telephone card, a cash card, or a credit card. It is formed as an IC card of an IC chip body that can be used as a card or the like.

The non-contact counting of the translucent card body 13 by the non-contact counting device using the translucent card body using the optical sensor of the present invention is a photoelectric conversion device generally used as the non-contact counting device 1. In FIG. 1, when an electric current flows from the light emitting circuit 3 to the light emitting device 5 using the optical fiber type sensor, the light from the light emitting device 5 as the sensor light is reduced by a certain light emitting angle (as the focal point a of the light emitting device). The light is projected on the transparent card body 13. The light projected on the translucent card body 13 is reflected on the surface of the opaque member 15 by the same reflected light axis angle as the projected light axis angle (focal point a of the projector) due to the physical properties of the light. Although the light is specularly reflected as light, part of the light projected on the translucent member 14 of the translucent card body 13 is transmitted and scattered while attenuating inside the translucent member 14, and part of the light is translucent. The light is irregularly reflected inside the member 14 and is radiated again as reflected light from the inside of the translucent member 14 to the outside, and the light received at a different angle position from the light projection optical axis angle of the light projector 5 (focal point a of the light projector). Since the light receiving device 6 having the optical axis angle (the focal point b of the light receiving device), that is, the lenses of the light projecting device 5 and the light receiving device 6 are arranged so that their focal points do not coincide with each other, this semi-transparent member 14, is transmitted and scattered, and is again out of the translucent member 14. Only light reflected to the light receiver 6 is received.

The reflected light received by the light receiver 6 is current-amplified by the pre-amplifier 8 and the main amplifier 9 in the amplifier 7, displayed as a received voltage waveform 11 by the voltage comparator 10, and counted by the counter 12. It is what is displayed.

FIG. 5 shows a sensor of a coaxial optical sensor in which the focal point a of the light projector 18 and the focal point b of the light receiver 20 used in the counting device for non-contact of the translucent card using the optical sensor of the present invention do not match. FIG. 3 is a diagram illustrating light emission and light reception in a head unit 17, wherein light emitted from a light projector 18 travels straight through a half mirror 19, and is transmitted to the surface of a translucent member 14 of a translucent card body 13. The part is reflected at the same angle as the light projection optical axis angle (focal point a of the light projector), but a part of the light is transmitted through the translucent member 14 of the translucent card 13 and is scattered. However, a part of the light is further reflected inside the translucent member 14 and the attenuated light is again radiated outward from the interior of the translucent member 14 of the translucent card body 13 as reflected light. Is part of the received optical axis angle (focal point b of the receiver) The light is condensed by the set condenser lens 21 and received by the light receiver 20. The reflected light received by the light receiver 20 is converted into a current, amplified by the pre-amplifier 8 and the main amplifier 9 in the amplifying device 7, displayed as a received voltage waveform 11 by the voltage comparison circuit 10, and displayed by the counter 12. By counting, the translucent card body 13 can be counted.

[0032]

[Action]

 The non-contact counting device for the translucent card body using the optical sensor configured as described above is provided so that the focal point a of the light emitter 5 of the optical sensor and the focal point b of the light receiver do not match. Therefore, the reflected light of the light projected on the translucent card body 13 by the light projector 5 is not directly received at all by the light receiver 6, that is, the projected light is not reflected on the translucent card body 13. It is not affected at all by the reflected light reflected on the surface, and thus, the light projected on the translucent card body 13 by the light projector 5 reflects the reflected light reflected on the surface of the translucent card body 13. The light emitted from the light emitter 5 to the translucent card 13 without being directly received by the light receiver 6 enters the translucent member 14 of the translucent card 13 once and is attenuated. Although the light was transmitted and scattered, the translucent member 14 was used. Irregularly reflected inside, the light receiver 6 only the reflected light portion of the reflected light is emitted outward from the inside again is one that acts to receive.

In the non-contact counting device for the translucent card body using the optical sensor configured as described above, the light is projected onto the translucent card body 13 by the light projecting device at a constant light projection angle. The light receiving device is provided so as to be capable of receiving only the reflected light that enters the translucent member 14 of the translucent card body 13 and is reflected from the translucent member 14. The reflected sensor light does not receive the reflected light reflected on the surface of the translucent card body 13 but always enters the translucent member 14 of the translucent card body 13 once. It functions so as to receive only the reflected light reflected from the inside of the transparent member 14.

In the present invention, since the focal point “a” of the light emitter 5 of the optical sensor and the focal point “b” of the light receiver are provided so as to be inconsistent a ≠ b, the reflection type light emitter is used as the optical sensor. 5 and the light receiver 6 can be used as a sensor head part 4 provided in a symmetrical direction. Also, as a light sensor, a sensor head part provided with a coaxial projector 18 and a light receiver 20 in a coaxial direction. It also works so that it can be used as well.

[0035]

[Effect of the invention]

 Since the present invention is configured as described above, the number of the translucent card can be easily and accurately counted using the sensor light without affecting the memory circuit of the embedded integrated circuit at all. There is an effect that can be.

In the present invention, since the focal point “a” of the light projector 5 and the focal point “b” of the light receiver are provided so as to be inconsistent with each other, the sensor light projected by the light projecting device is always once in the translucent card body. Since the light once enters the translucent member and receives only the reflected light that has been reflected outward again from the inside of the translucent member, it is completely affected by the reflected light reflected on the surface of the translucent card body Even if a plurality of translucent cards are in close contact, or they are juxtaposed with gaps between them, they are always once inside the translucent member of the translucent card. It is provided to receive only the reflected light that enters and is reflected outside again from the inside of the translucent member, so that only the translucent member of the translucent card body is counted, so accurate It can count the number of translucent card bodies Has the effect.

In the counting device for non-contacting the translucent card body configured as described above, the translucent card body is provided so that light can be projected from the translucent card body at a constant light projection angle. The light-receiving device is arranged so as to be able to receive only the reflected light that enters the inside of the translucent member of the body and is again reflected outward from the inside of the translucent member. The sensor light always enters the inside of the translucent member of the translucent card body, and receives only the reflected light that has been reflected outward again from the inside of the translucent member. For example, there is an excellent effect that the number of translucent card bodies can be counted.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment showing the entire configuration of the present invention.

FIG. 2 is a side view of a main part showing an arrangement state of a translucent card body and a reflection-type sensor head provided with a light projector and a light receiver of the present invention.

FIG. 3 is a perspective view of a main part for explaining a light receiving state according to the present invention;

FIG. 4 is a sectional view of a translucent card body.

FIG. 5 is a side view of a main part showing an arrangement state of the coaxial reflection type sensor head part and the translucent card body of the present invention.

FIG. 6 is a perspective view illustrating an arrangement state of a translucent card body using a regular reflection type sensor head unit provided with a conventional light emitter and light receiver, and a light reception state thereof.

FIG. 7 is a perspective view illustrating an arrangement state of a semi-transparent card body and a light reception state thereof using a conventional regular reflection type sensor head section provided with a light projector and a light receiver.

FIG. 8 is an enlarged view of a main part of a conventional regular reflection type sensor.

FIG. 9 is a side view of a main part showing an arrangement state of a conventional coaxial reflection type sensor head and a translucent card body.

[Explanation of symbols]

 Reference Signs List 1 counting device 2 power supply circuit 3 light emitting circuit 4 sensor head unit 5 light emitting device 6 light receiving device 7 amplifying device 8 pre-amplifier 9 main amplifier 10 voltage comparing circuit 11 light receiving voltage waveform 12 counter 13 semi-transparent card body 14 translucent member 15 opaque Member 16 Condenser lens 17 Sensor head part 18 Projector 19 Half mirror 20 Receiver 21 Condenser lens

Claims (4)

[Utility model registration claims] 1. A non-contact counting device for a translucent card body using an optical sensor, wherein a focal point of a light emitter and a focal point of a light receiver are provided so as to be inconsistent. 2. A light-emitting device is provided so as to be able to project light at a certain light-projecting angle onto a translucent card body made of a translucent material made of a translucent material having an opaque material made of an opaque material on at least one side surface, A light receiving device is arranged so as to be able to receive only reflected light that enters the translucent member of the translucent card body and is reflected from the translucent member, and the light reflected by the light receiving device is reflected from the translucent member. A translucent card body non-contact counting device using an optical sensor, wherein a translucent card body is provided so as to be able to count by counting light reception. 3. A translucent card body made of a translucent material made of a translucent material and integrally provided with an opaque material made of an opaque material on at least one side surface, is thrown onto the translucent card body arranged so as to be able to be sequentially transferred. An optical device is provided so that light can be projected at a predetermined light projection angle, and only the reflected light that enters the translucent member of the translucent card body and is diffusely reflected from the translucent member can be received. An optical sensor characterized by being provided so as to be able to count the number of translucent card bodies by arranging the device and counting the number of times of reception of reflected light reflected from inside the translucent member by the light receiving device Non-contact counting device for translucent cards. 4. The optical sensor according to claim 1, wherein the translucent card is a flat card having an integrated circuit embedded in the translucent member and opaque members made of opaque material on both sides. Non-contact counting device for semi-transparent card body using a.