JP2007052121A - Photosensitive recording medium cartridge - Google Patents

Abstract

Provided is a photosensitive recording medium cartridge capable of distinguishing a genuine photosensitive recording medium cartridge from other counterfeits.
A photosensitive recording medium cartridge 2 according to the present invention includes a disc-shaped photosensitive recording medium 4 and a photosensitive recording medium 4 which is rotatably accommodated and recorded on a center 4a of the photosensitive recording medium 4. The cartridge body 11 having openings 18 and 19 that expose the surface 4b to the outside, and a closed position that is assembled outside the cartridge body 11 and closes the openings 18 and 19 and an opening position that opens the openings 18 and 19. And a shutter 13 movably disposed, and an RFID 81 is provided inside the cartridge body 11.
[Selection] Figure 1

Description

  The present invention relates to a photosensitive recording medium cartridge that accommodates a photosensitive recording medium, and more particularly to an improvement in a photosensitive recording medium cartridge that includes a light shielding plate and a shutter that opens and closes an opening provided in the cartridge body.

  A hologram recording medium for recording data by hologram has been invented (see, for example, Patent Document 1). This hologram recording medium is a photosensitive recording medium in which a hologram recording layer made of a photosensitive material is layered on a disk-shaped support, and has been widely used by recording data in multiple layers as laser light interference fringes. Thus, a larger data recording capacity can be obtained than a DVD that is a recording medium. This hologram recording medium is handled by being housed in a cartridge having a light-shielding function and a dust-proof function because the performance of the hologram recording layer is adversely affected by exposure of the hologram recording layer or adhesion of dust (for example, Patent Document 2). reference). Further, a cartridge is known that includes a cartridge body, a shutter member, and a shutter cover (see, for example, Patent Document 3).

  Also, a magnetic disk cartridge provided with an identification member is known in order to identify a magnetic disk cartridge or the like in which software or the like is recorded from other cartridges and to eliminate a copy or the like (see, for example, Patent Document 4). .

JP 2004-029476 A JP 2003-317422 A JP 2001-216754 A JP-A-9-213053

  The cartridge that accommodates the hologram recording medium can also be identified as a counterfeit that has illegally copied the recorded software, and is prevented from using a so-called pirated copy. A mechanism that can identify something is desired. However, the magnetic disk cartridge of Patent Document 4 has a configuration in which the identification member is detected by an optical sensor. However, in the hologram recording medium, data is irradiated onto a hologram recording layer made of a photosensitive material as an interference fringe of laser light during recording. Since there is an environment where light is shielded by the recording unit of the drive, there is room for improvement in that it is impossible to apply a configuration in which the identification member is detected by the optical sensor.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a photosensitive recording medium cartridge capable of distinguishing a genuine photosensitive recording medium cartridge from other counterfeits. is there.

  The object of the present invention is to provide a cartridge main body having a disc-shaped photosensitive recording medium and an opening for rotatably accommodating the photosensitive recording medium and exposing the center and recording surface of the photosensitive recording medium to the outside. And a shutter for a photosensitive recording medium, which is assembled to the outside of the cartridge body and is movably disposed between a closed position for closing the opening and an open position for opening the opening. This is achieved by a photosensitive recording medium cartridge characterized by comprising an RFID inside the cartridge body.

  The photosensitive recording medium cartridge configured as described above includes an RFID in the cartridge body. The RFID is a tag-like member and can communicate with a reader by radio waves or electromagnetic waves. In recent years, RFID has various shapes such as a label type, a card type, a coin type, and a stick type by a non-contact power transmission technique from the antenna side, and is selected according to the application. The communication distance ranges from a few millimeters to a few meters, which can also be used according to the application. By using such an RFID, reading and writing can be performed even in a light-shielded darkroom inside the drive.

  A specific code can be recorded on the RFID so that the recorded software can be identified as a counterfeit copy of the unauthorized copy.

  If the photosensitive recording medium is a hologram recording medium, the photosensitive recording medium can be held in the cartridge body without exposing the hologram recording medium.

  According to the photosensitive recording medium cartridge of the present invention, it is an object to provide a photosensitive recording medium cartridge capable of distinguishing a genuine photosensitive recording medium cartridge from other counterfeits.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
<First Embodiment>
1 to 3 are perspective views showing the external shape of a hologram recording medium cartridge (hereinafter abbreviated as a cartridge) according to an embodiment of the present invention. FIG. 1 is a perspective view showing a state in which one surface of the cartridge is upward, FIG. 2 is a perspective view showing a state in which the opposite surface is upward, and FIG. 1 is a perspective view showing a state in which a disc-shaped hologram recording medium (hereinafter referred to as a recording disk) is rotatably accommodated. FIG. FIG. 4 is an exploded perspective view showing the configuration of the cartridge.

  As shown in FIGS. 1 to 3, the cartridge 2 is loaded from the direction of the arrow C into a hologram recording device or the like that handles the cartridge. Positioning grooves 7 and 8 into which positioning members provided in each device are inserted when the cartridge 2 is loaded in various devices such as a hologram recording device are provided on both side surfaces of the front end of the cartridge 2 in the loading direction. Yes.

  The recording disk 4 is a hologram recording disk having a disk shape with a hole in the center, and hologram recording layers are provided on both sides. In this hologram recording layer, for example, data is recorded in a multi-layered manner as interference fringes of laser light by laser light in the wavelength range of green 532 nm to blue 405 nm. A reinforcing material may be added to the hole of the recording disk 4. The cartridge 2 is set in the hologram recording apparatus with either the A surface 2a or the B surface 2b facing upward in order to perform recording on both recording surfaces of the recording disk 4.

  The cartridge 2 includes a cartridge main body 11 provided with a disk housing portion 3, a light shielding plate 12 attached so as to sandwich the outside of the cartridge main body 11, and a shutter 13 incorporated between the cartridge main body 11 and the light shielding plate 12. And. On the upper and lower surfaces of the light shielding plate 12, substantially rectangular external openings 14 and 15, which are second openings, are formed. These external openings 14 and 15 are closed by the first shutter 55a and the second shutter 55b when the shutter 13 is in the closed position.

  As shown in FIG. 3, when the shutter 13 moves toward the opening position in the direction of arrow D, the cartridge body 11 is provided with the same shape as the external openings 14 and 15 so as to face the external openings 14 and 15. The internal openings 18, 19 are opened. Thereby, the central part 4a of the recording disk 4 accommodated in the disk accommodating part 3 and the recording surface 4b are exposed to the outside.

  The shutter 13 is urged to the closed position by a built-in shutter spring, and is locked at the closed position by a lock mechanism. To release the lock mechanism, the second lock member 64 protruding into the positioning groove 7 is pushed into the cartridge 2, and in this state, it is exposed from the openings 73 and 72 of the A surface 2a and the B surface 2b. The first lock member 63 is slid to the rear end side in the cartridge loading direction. Thus, since the shutter 13 is locked at the closed position by the lock mechanism that cannot be released unless a two-step operation is performed, the shutter 13 is not inadvertently opened.

  As shown in FIG. 4, the cartridge body 11 includes a substantially plate-like first shell 25, a second shell 26 joined to the first shell 25, and the first shell 25 and the second shell 26. The lock mechanism 27 is incorporated and locks the shutter 13.

  The first shell 25 and the second shell 26 are formed by injection molding using, for example, the same or similar thermoplastic plastic to which a light shielding material and a lubricant are added. The first shell 25 and the second shell 26 are respectively provided with internal openings 18 and 19 that expose the central portion 4a and the recording surface 4b of the recording disk 4 to the outside.

  As shown in FIG. 4, the outer surfaces of the first shell 25 and the second shell 26 (the state on the second shell 26 side in FIG. 4) are slightly larger than the shape of the light shielding plate 12 and the light shielding plate. A light shielding plate mounting surface 26a having a step portion 26d having a depth of 12 or more and offset to the inside is formed. A shutter sliding surface 26b is formed on the inner side of the light shielding plate mounting surface 26a and is offset inward at a depth equal to or greater than the thickness of the shutter member 55 described in detail later.

  As the material of the light shielding plate 12, for example, an aluminum alloy is used as a material that can obtain light shielding properties, corrosion resistance, decorative properties, and workability, and is lightweight and strong. The light shielding plate 12 may be made of plastic. However, in order to ensure the light shielding property and the slipperiness of the shutter 13, a plastic to which a light shielding material and a lubricant are added may be used.

  As shown in FIG. 4, the light-shielding plate 12 is formed of an aluminum alloy thin plate with external openings 14 and 15 and a notch 40 for obtaining a moving range of the shutter 13 so that the cross section is substantially U-shaped. It is bent. Thereby, the light shielding plate 12 has the first plate portion 12a and the second plate portion 12b each having the external openings 14 and 15, and the cutout 40, and the first plate portion 12a and the second plate portion 12b. And a third plate portion 12c that is connected to each other. Further, the corner portions connecting the first plate portion 12a, the second plate portion 12b, and the third plate portion 12c are bent to approximately 90 ° to form the light shielding portions 12e and 12f. The size of the light shielding plate 12 is a size that can cover the entire range of the movement region of the shutter 13.

  Each of the ridgeline part of the 3rd board part 12c, the 1st board part 12a, and the 2nd board part 12b, and two sides of the cartridge 2 in the loading direction C and one side in the direction orthogonal to the loading direction C Cuts are made in the intersecting portions so that the outer peripheral end portions of the first plate portion 12a and the second plate portion 12b approach each other (in other words, the direction toward when the cartridge body 11 is attached). It is bent into a generally square shape. As a result, a substantially U-shaped bent portion 12d is formed at the outer peripheral ends of the first plate portion 12a and the second plate portion 12b. It is desirable from the viewpoint of light shielding performance that the bent portion 12d is formed on all three sides of the outer peripheral end portion, but is not limited thereto.

  Since the light shielding plate mounting surfaces 25 a and 26 a are offset inward at a depth greater than the thickness of the light shielding plate 12, the outer surface of the light shielding plate 12 attached to the cartridge body 11 does not protrude from the surface of the cartridge 2. Absent. Further, as shown in FIGS. 9 to 12, the tips of the bent portions 12d of the first plate portion 12a and the second plate portion 12b are stepped portions 25d and 26d of the first shell 25 and the second shell 26, respectively. Located opposite to.

  As shown in FIG. 4, small holes 49 are formed at substantially equal intervals on the outer periphery of the first plate portion 12 a and the second plate portion 12 b of the light shielding plate 12. Further, pins 50 that are slightly longer than the thickness of the light shielding plate 12 are integrally formed on the light shielding plate mounting surfaces 25 a and 26 a of the first shell 25 and the second shell 26 at positions corresponding to the holes 49 of the light shielding plate 12. Has been.

  When the light shielding plate 12 is attached to the outside of the cartridge body 11 (light shielding plate attachment surface 26 a), the pins 50 of the first shell 25 and the second shell 26 are inserted into the holes 49 and protrude from the surface of the light shielding plate 12. The light shielding plate 12 is fixed to the cartridge body 11 by the tip of each pin 50 being crushed by heat while the tip of the bent portion 12d is pressed against the light shielding plate mounting surface 26a against the elastic force. As a result, the outer peripheral end of the light shielding plate 12 (the tip of each bent portion 12d) and the light shielding plate mounting surface 26a are in close contact with each other without any gap, and even if there is a gap due to a component accuracy error, etc. Prevents light from wrapping around and shields it from light.

  In addition, as a method for fixing the light shielding plate 12 to the cartridge body 11, an adhesive, a double-sided tape, screwing, or the like can be used. Further, when the light shielding plate 12 is made of plastic, various types of welding can be used.

  As shown in FIG. 4, the shutter 13 includes a shutter member 55 obtained by bending a light-shielding thin plate so as to be substantially U-shaped, and an elongated plate-like slide member 56 attached to the shutter member 55. . The shutter member 55 is formed of, for example, an aluminum alloy for the same reason as the light shielding plate 12. The shutter member 55 may also be formed of plastic, but it is also preferable to use plastic to which a light-shielding substance and a lubricant are added in order to ensure light-shielding properties and sliding properties. The slide member 56 is formed of a plastic to which a light shielding material and a lubricant are added.

  The shutter member 55 includes a first shutter 55 a inserted between the outer surface of the first shell 25 and the first plate portion 12 a of the light shielding plate 12, and the outer surface of the second shell 26 and the second plate of the light shielding plate 12. The second shutter 55b is inserted between the second shutter 55b, the first shutter 55a and the second shutter 55b, and a continuous portion 55c to which the slide member 56 is attached.

  On the outer surface of the first shell 25 and the second shell 26, a shutter sliding surface 26 b is formed on the inner side of the light shielding plate mounting surface 26 a and offset inward at a depth equal to or greater than the thickness of the shutter member 55. Thereby, since the shutter 13 can move smoothly between the cartridge main body 11 and the light shielding plate 12, generation | occurrence | production of the chips etc. by movement can be suppressed. The shutter sliding surface 26b may be a rough surface in order to diffuse incident light. Similarly, the inner surface of the light shielding plate 12 and the inner and outer surfaces of the shutter 13 may be roughened.

  The slide member 56 is slidably incorporated between the first shell 25 and the second shell 26 so that the upper surface is exposed from the front end surface of the cartridge body 11 in the loading direction. An attachment surface 56 a that is attached to the inner surface of the continuous portion 55 c of the shutter member 55 is provided at the upper end portion of the slide member 56. For example, two pins 56b are integrally formed on the mounting surface 56a, and are inserted into the two holes 55d provided in the connecting portion 55c, and the tip is crushed by heat, whereby the shutter member 55 and The slide member 56 is fixed. Note that an adhesive, a double-sided tape, or the like may be used for this fixing, and various welding may be used when the shutter member 55 is formed of plastic. Further, screwing may be used.

  On the other upper surface end portion of the slide member 56, an operated portion 56d that is operated when the shutter 13 is opened is integrally formed. The operated portion 56d is exposed to the shutter member 55 without being hidden by the third plate portion 12c of the light shielding plate 12 by providing the slide member 56 so as to extend in the shutter closing direction. . The cutout 40 in the third plate portion 12c of the light shielding plate 12 is provided to avoid interference with the operated portion 56d when the shutter 13 is moved to the open position (see FIG. 3).

  The shutter 13 is urged in the closing direction by a shutter spring 59. The shutter spring 59 is formed of, for example, a torsion coil spring, and both ends thereof are locked to the slide member 56 and the inner surface of the first shell 25.

  The cartridge body 11 includes a lock mechanism 27 that locks the shutter 13 in the closed position. The lock mechanism 27 includes a first lock member 63 that locks the shutter 13 in the closed position, a second lock member 64 that locks the movement of the first lock member 63, and the second lock member 64 in the drawing. The lock spring 65 is biased toward the counter-hour hand direction and upward.

  The first shell 25 is formed with an opening 72 that exposes the operation portion of the first lock member 63 to the outside from the outer surface of the first shell 25 so that the operation portion of the first lock member 63 can be released by a drive-side release mechanism. Similarly, the second shell 26 has an opening 73 that exposes the operation hole to the outside at a position facing the opening 72.

  As shown in FIGS. 1 to 4, the photosensitive recording medium cartridge 2 according to the present invention includes an identification member 81 inside a cartridge body 11. The identification member 81 is attached to a support rib 82 protruding from the inner surface of the second shell 26. Specifically, RFID (Radio Frequency Identification) is used as the identification member 81. The RFID is configured to store data and communicate with a reader using radio waves or electromagnetic waves, and is a tag-like member having a size of about several centimeters and is excellent in environmental performance. As the RFID, a non-contact type is used. By doing so, it is not necessary to expose the part to which the RFID is attached to the outside of the cartridge main body 11, so that the light shielding property can be ensured. The non-contact type RFID can be used semipermanently without a battery by a non-contact power transmission technology from the antenna side. The tag has various shapes such as a label type, a card type, a coin type, and a stick type, and can be selected according to the application. The communication distance ranges from several millimeters to several meters, but can be changed as appropriate according to the dimensions of the cartridge body and the configuration of the drive.

  According to the photosensitive recording medium cartridge of the present invention, reading and writing can be performed even in a light-shielded dark room inside the drive by using an RFID as the identification member 81 inside the cartridge body 11. For this reason, for example, software recorded in RFID can be identified as a counterfeit that has been illegally copied, and a genuine code and a counterfeit can be identified by recording a specific code. Since the RFID is incorporated in the cartridge main body 11, it is possible to write and read the identification information by handling the same as before without any additional work for the user during handling. Convenience is good.

  The reader device that reads the information of the RFID may be provided in a recording device (drive) for the photosensitive recording medium, or may be configured as a device dedicated to reading the RFID.

  Various materials can be added as the light shielding material to be added to the plastic forming the first shell 25 and the second shell 26. For example, 0.01 to 5.00 depending on the light shielding material used. It is preferable to add% by weight. For example, carbon black can be used as the light-shielding substance. By adding this carbon black, the light shielding property can be secured and the physical strength can be improved. The amount of carbon black added is preferably 0.01 to 2.00% by weight. If the added amount exceeds 0.01% by weight, the effect of improving the light-shielding property and the physical strength is exhibited, but if the added amount exceeds 2.00% by weight, the physical strength is lowered.

  As the lubricant, for example, a silicone-based lubricant can be used. Since the friction resistance is reduced by the addition of the silicone lubricant, the generation of shavings due to the movement of the shutter 13 can be reduced. Further, the generation of shavings when the recording disk 4 and the inner wall of the cartridge main body 11 come into contact with each other during transportation can be reduced. Furthermore, since the handleability such as insertability into equipment is improved and the fluidity is improved, the kneadability during molding and the workability such as injection moldability are also improved.

  The addition amount of the silicone lubricant is preferably 0.1 to 3.0% by weight. Less than 0.1% by weight is less effective, and more than 3.0% by weight results in too good fluidity, resulting in slippage between the screw and resin during kneading and molding, resulting in poor workability and bleeding out on the product surface. This is because it may adhere to the recording disk 4 or the user's hand and cause problems in handling and appearance. In addition, when using copolymer silicone, since the said malfunction becomes difficult to produce, it is possible to add to 5.0 weight%.

  For the first shell and the second shell, a light-shielding plastic having a visible light transmittance of 1.0% or less at a thickness of 0.2 mm is used. It is preferable to form in the range of 2-1.6 mm. In order to obtain a plastic having the above light-shielding characteristics, a light-shielding substance may be added. Various materials can be used as the light shielding material, and it is preferable to add 0.01 to 5.00% by weight depending on the light shielding material to be used. The following may be considered as the light shielding material.

(1) Inorganic compound A, oxide: silica, diatomaceous earth, alumina, titanium oxide, iron oxide (iron black), zinc oxide, magnesium oxide, antimony oxide, barium ferrite, strontium ferrite, beryllium oxide, pumice, pumice balloon A, alumina fiber, etc. B, hydroxide ... aluminum hydroxide, magnesium hydroxide, basic magnesium carbonate, etc. C, carbonate ... calcium carbonate, magnesium carbonate, dolomite, dosonite etc. D, (sulfur) sulfate ... calcium sulfate , Barium sulfate, ammonium sulfate, calcium sulfite, etc. E, silicate ... talc, clay, mica, asbestos, glass fiber, glass balloon, glass beads, calcium silicate, montmorillonite, bentonite, etc. F, carbon ... carbon black, graphite, carbon Fiber, carbon hollow sphere etc. G, its Other ... Iron powder, copper powder, lead powder, aluminum powder, molybdenum sulfide, poron fiber, silicon carbide fiber, brass fiber, potassium titanate, lead zirconate titanate, zinc borate, barium metaborate, calcium borate, boron Sodium acid, aluminum paste, talc, etc.

(2) Organic compound wood flour (pine, firewood, sawtooth, etc.), cereal fiber (almond, beannut, fir etc.), cotton, jute, paper strip, non-wood fiber (wara, kenaf, bamboo, esparto, pagas, Morohaya, fireworks, etc.), cellophane pieces, nylon fiber, polypropylene fiber, starch (including modified starch, surface-treated starch), aromatic polyamide fiber, etc.

  Among these light-shielding substances, inorganic compounds that have little adverse effect on photographic properties, are stable against heat and become opaque even at 150 ° C. or higher, and are particularly excellent in heat resistance and light resistance and are relatively inert. The light-absorbing carbon black, titanium nitride, graphite and iron black are preferred.

  When carbon black is used as the light-shielding substance, the amount added is preferably 0.01 to 2.00% by weight. As described above, this is to obtain a plastic having a good balance between light shielding properties and physical strength.

  Examples of classification based on carbon black materials include gas black, furnace black, channel black, anthracene black, acetylene black, ketjen carbon black, thermal black, lamp black, oil smoke, pine smoke, animal black, and vegetable black.

  As typical examples of commercially available carbon black, for example, carbon black # 20 (B), # 30 (B), # 33 (B), # 40 (B), # 41 (B), manufactured by Mitsubishi Kasei, # 44 (B), # 45 (B), # 50, # 100, # 600, # 950, # 1000, # 2200 (B), # 2400 (B), MA8, MA11, MA100 and the like. Also, various grades such as Denka Black made by Electrochemical, Seaweed of Tokai Carbon, Asahi Carbon Asahi # 78, Showa Cabot Showa Black, Nippon Steel Chemical Niteron, Mitsubishi Chemical Diamond Black, etc. can be used.

  Examples of overseas products include Cabot's B1ack Pear1s 2,46,70,71, 74,80,81,607, etc., Rega1300,330,400,660,991, SRF-S, etc., Vulcan3,6 etc., Ster1ing10, SO, V, S, Examples include FT-FF and MT-FF. Furthermore, UnitedR, BB, 15,102,3001,3004,3006,3007,3008,3009,3011,3012, XC-3016, XC-3017,3020, etc. of Ashland Chemical Co. can be mentioned. It is not limited to.

  In addition, as a lubricant to be added to the first shell and the second shell, silicone-based lubricants, particularly various grades of dimethylpolyoxane can be used. Toray, Dow Corning, Silicone, GE Toshiba Silicone, Asahi Kasei Various grades commercially available from Wacker Silicone, Shin-Etsu Chemical, etc. can be used. Both master batches and kneaded products can be used. The addition amount of the silicone lubricant is preferably 0.1 to 5.0% by weight. As described above, this is to obtain a plastic having a good balance between frictional resistance, manufacturing suitability, and product quality.

  Further, as the rough surface provided on the shell, if the surface roughness Ra is 5 μm or less, the light diffusion effect is thin, and if it is 20 μm or more, there is a possibility that scratches may be generated when contacting the recording disk. Therefore, mat processing or surface processing with a surface roughness Ra; 5 to 20 μm is preferable.

  The aluminum alloy used for the light shielding plate 12 and the shutter member 55 is preferably an A1-Mg alloy, for example, JIS alloy numbers 5052 and 5056 are preferable. In order to increase the strength, JIS alloy numbers 5083 and 5086 are more preferable. Furthermore, when increasing the strength, A1-Mg-Si alloy (for example, JIS alloy number 6063, 6061), Al-Cu alloy (for example, JIS alloy number 2014, 2017), A1-Zn-Mg system An alloy (for example, JIS alloy number 7003, 7N01, 7075, 7050) or the like may be used. In light of weight reduction and ease of processing, the thickness of the light shielding plate 12 and the shutter member 55 is preferably 1.0 mm or less, and more preferably 0.15 to 0.5 mm.

  Further, the light shielding plate 12 and the shutter member 55 may be formed of plastic. As the plastic to be used, for example, POM or the like is suitable, and it is preferable to add a light-shielding substance or a lubricant as in the case of the first shell described above.

  For the shutter spring and the lock spring, it is preferable to use austenitic spring stainless steel from the viewpoint of spring constant, durability, workability, etc. For example, SUS300 series can be used. The preferred wire diameter is preferably 0.2 to 0.7 mm for the shutter spring and 0.15 to 0.4 mm for the lock spring.

  Further, although ultrasonic welding is used for fixing the first shell and the second shell, other welding methods and fixing methods may be used. For example, when fixing with a screw or the like, it is preferable to form a light shielding structure around the screw hole. Moreover, although the second shell and the first shell are configured by one component, a plurality of components may be combined and formed. For example, if it is configured with two parts with the shutter housing portion as a boundary, the mold can be simplified.

  Further, the cartridge containing the recording disk capable of recording on both sides is taken out as an example, but the cartridge may be adapted to the recording disk recorded on one side. In this case, an opening is formed only on one surface, and this opening is opened and closed with a shutter. Further, although the cartridge for accommodating the hologram recording medium has been described as an example, the present invention can be applied to a cartridge for accommodating other photosensitive recording media.

1 to 15 relate to a first embodiment of the present invention, and FIG. 1 is a perspective view showing an external shape of a cartridge. It is an external appearance perspective view which shows the surface on the opposite side of a cartridge. It is an external appearance perspective view which shows the shutter open state of a cartridge. It is a disassembled perspective view which shows the structure of a cartridge.

Explanation of symbols

2 Cartridge (Photosensitive recording medium cartridge)
4 Recording disk (photosensitive recording medium, hologram recording medium)
11 Cartridge body 12 Light shielding plate 13 Shutter 18 Internal opening (opening)
19 Internal opening (opening)
81 Identification member

Claims (1)

A disc-shaped photosensitive recording medium; a cartridge main body that rotatably accommodates the photosensitive recording medium; and an opening that exposes a center and a recording surface of the photosensitive recording medium to the outside; and an outer side of the cartridge main body A cartridge for photosensitive recording medium, comprising: a shutter that is assembled with the shutter and movably disposed between a closed position that closes the opening and an open position that opens the opening,
A photosensitive recording medium cartridge comprising an RFID inside the cartridge body.

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