Ophthalmologic apparatus

Abstract

To improve feeling of the use by improving usability of a printer unit.SOLUTION: An ophthalmologic apparatus includes a printer unit which has: an optometric part for examining an eye to be examined; a storage part for storing a rolled sheet; a printer for printing an examination result of the eye to be examined on a sheet pulled out of the rolled sheet; and an opening and closing cover for covering the rolled sheet stored in the storage part and the printer. The printer unit includes at least one of (a) a curl correcting mechanism for correcting a curled state of the sheet pulled out of the rolled sheet, (b) a sheet cutting and holding mechanism having a sheet cutting part for cutting the sheet discharged from the printer and a sheet holding part for temporarily holding the sheet cut fully by the sheet cutting part, and (c) a mechanical cover opening mechanism which has an operation button operated by an operator for opening the opening and closing cover and automatically opens the opening and closing cover to the upper side of the ophthalmologic apparatus by one operation of the operation button.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to an ophthalmic device for examining an eye to be examined.

Background Art

[0002] In an ophthalmic device for examining an eye to be examined, generally, it has a printer unit that prints and outputs the examination result of the eye to be examined on paper (for example, see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the printer unit provided in the ophthalmic device, further improvement in usability is desired. For example, in a conventional printer unit, there are inconveniences such as the printed paper being rolled up and discharged, making it difficult to attach to a medical record, etc.; when the paper discharged from the printer unit is partially cut (partial cutting where a part of the paper remains), the paper cannot be easily torn off; when the ophthalmic device is installed in a cramped place such as against a wall, it is difficult to open the opening / closing cover of the printer unit and difficult to replace the roll paper for printing, etc.

[0005] In view of the above conventional devices, the technical problem of the present disclosure is to provide an ophthalmic device that improves the usability of the printer unit and can enhance the user experience.

Means for Solving the Problems

[0006] The ophthalmic device according to the first aspect of the present disclosure includes an examination unit that examines an eye to be examined, a storage unit that stores roll paper, a printer that prints the examination result of the eye to be examined by the examination unit on a sheet pulled out from the roll paper, and an opening / closing cover that covers the roll paper stored in the storage unit and the printer. The printer unit includes: (a) a curling correction mechanism that corrects the curled state of the sheet pulled out from the roll paper; (b) a sheet cutting unit that cuts the sheet discharged from the printer; and a sheet holding unit that temporarily holds the sheet fully cut by the sheet cutting unit. The printer unit further includes at least one of: (c) an operation button that is operated by an operator to open the opening / closing cover, and a mechanical cover opening mechanism that automatically opens the opening / closing cover above the ophthalmic device by one operation of the operation button.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0008] [Overview] Hereinafter, one typical embodiment will be described with reference to the drawings. The items classified in the following <> can be used independently or in combination.

[0009] An ophthalmic device (e.g., ophthalmic device 10) includes an examination unit (e.g., examination unit 12) for examining an eye to be examined, and a printer unit (e.g., printer unit 200). For example, the examination unit includes an examination optical system used for examining (including measuring and photographing) the eye to be examined. For example, the examination optical system includes at least one of an eye refractive power measurement optical system, a corneal shape measurement optical system, an intraocular pressure measurement optical system, an eye axial length measurement optical system, an OCT optical system for obtaining an eye tissue tomographic image, a fundus photography optical system, and a corneal endothelium photography optical system.

[0010] For example, the ophthalmic device includes a base (e.g., base 11) on which the examination unit is movably mounted, and a joystick (e.g., joystick 21) operated by an examiner. The joystick is used to move the examination unit relative to the eye to be examined.

[0011] <Printer unit> For example, the printer unit has a storage section (e.g., storage section 202), a printer (e.g., printer 210), and an opening / closing cover (e.g., opening / closing cover 206). The storage section is used to store roll paper. The printer is used to print on the paper pulled out from the roll paper. The opening / closing cover is used to cover the roll paper and the printer stored in the storage section.

[0012] For example, the printer unit includes at least one of a flattening mechanism (e.g., flattening mechanism 240), a paper cutting / holding mechanism (e.g., paper cutting section 230, paper holding section 250), and a cover opening mechanism (e.g., cover opening mechanism section 260). Thereby, the usability of the operator regarding the printer unit can be improved.

[0013] <Flattening mechanism> For example, the curling correction mechanism is used to correct the curled state of the paper pulled out from the roll paper. For example, the curling correction mechanism may include a force applying mechanism (e.g., force applying mechanism 240A) that applies a force in a direction opposite to the curling direction of the paper to the paper in the path between the roll paper stored in the storage section and the printer. For example, the force applying mechanism may include a guide member (e.g., guide member 242). For example, the guide member is arranged at a position away from the side where the roll center of the roll paper is located with respect to the line segment connecting the paper pulling-out position from the roll paper and the printer. For example, the guide member has a curved surface that warps the paper in a direction opposite to the curling direction of the paper. By the curling correction mechanism, the curl of the discharged paper is corrected, making it easier to attach the paper with the inspection results to the medical record. That is, when attaching the paper to the medical record, the operation of stretching the paper is reduced, and attachment errors are suppressed.

[0014] <Paper cutting and holding mechanism> For example, the paper cutting and holding mechanism includes a paper cutting section (e.g., paper cutting section 230) and a paper holding section (e.g., paper holding section 250). For example, the paper cutting section is used to cut the paper discharged from the printer. For example, the paper cutting section may include a cutter (e.g., cutter 232) for cutting the paper. For example, the cutting edge of the cutter has a partial recess for partial cutting, and the paper cutting section may be capable of full cutting and partial cutting of the paper.

[0015] For example, the paper holding unit includes holding members (e.g., holding members 252 and 253). For example, the holding members are provided on the opening / closing cover. For example, when the opening / closing cover is closed, a gap is formed between the holding members and the exterior cover of the ophthalmic device facing the opening / closing cover, through which the paper from the printer can be discharged. For example, the holding members hold the fully cut paper by frictional force or pressing force. For example, the holding members have a frictional force for holding the paper when the fully cut paper is tilted and contacts them by the paper cutting unit. For example, the holding members may be in the shape of a brush, and hold the paper by pressing the paper with the tips of the brush. Thereby, with a simple configuration of the holding members, the fully cut paper can be held so as not to fall. For example, the frictional force of the holding members may be determined experimentally so that the fully cut paper does not fall, or may be determined by calculating from the relationship between the weight of the paper of an assumed length and the contact area with the paper.

[0016] For example, the paper cutting unit may be capable of fully cutting and partially cutting the paper. And the paper cutting unit may be provided with a switching means (e.g., control unit 50) for switching between full cutting and partial cutting of the paper according to the length of the paper fed from the printer. Thereby, even when the paper fed from the printer is long and the holding of the paper in the paper holding unit is insufficient, it can be switched to partial cutting so that the paper does not fall.

[0017] <Cover opening mechanism> For example, the cover opening mechanism has an operation button (e.g., operation button 261) that is operated by an operator to open the opening / closing cover. And the cover opening mechanism may be mechanically configured to automatically open the opening / closing cover above the ophthalmic device by one operation of the operation button. With the cover opening mechanism, even when the installation of the ophthalmic device is cramped, it is easy to replace the roll paper for printing. Also, when the opening / closing cover is around the joystick, the opening / closing cover can be automatically opened with one operation, making it easy to replace the roll paper for printing.

[0018] For example, the cover opening mechanism may include a biasing means (e.g., spring 264, magnet, weight) that biases the opening / closing cover in the opening direction, and a locking mechanism (e.g., locking mechanism 265) that mechanically locks the opening of the opening / closing cover (movement in the opening direction) in a state where the opening / closing cover is closed against the biasing means. For example, the cover opening mechanism may be configured such that when the locking mechanism is released by operating an operation button, the opening / closing cover is automatically opened upward by the biasing force of the biasing means.

[0019] [Embodiment] FIG. 1 is an external view of the ophthalmic device 10. FIG. 1(a) is a view of the ophthalmic device 10 seen from the side, and FIG. 1(b) is a view of the ophthalmic device 10 seen from the examiner side (opposite to the subject). The ophthalmic device 10 of the present disclosure is exemplified as a stationary type.

[0020] The ophthalmic device 10 of the present disclosure includes a base 11, an examination unit 12, an alignment drive unit 13, a face support unit 15, a monitor 16, a joystick 21, a control unit 50, a printer unit 200, etc.

[0021] The examination unit 12 houses an examination optical system used for examining (including measuring and photographing) the subject eye, an alignment optical system used for detecting the alignment state between the examination unit 12 and the subject eye, etc. For example, the examination optical system includes at least one of an eye refractive power measurement optical system, a corneal shape measurement optical system, an intraocular pressure measurement optical system, an eye axial length measurement optical system, an OCT optical system for obtaining an ocular tissue tomogram, a fundus photography optical system, and a corneal endothelium photography optical system.

[0022] The examination unit 12 is mounted on the base 11 so as to be movable three-dimensionally. The face support unit 15 is fixed to the base 11 and fixes the subject eye by supporting the examiner's face. The alignment drive unit 13 changes the positional relationship between the examination unit 12 and the subject eye. For example, the alignment drive unit 13 moves the examination unit 12 three-dimensionally with respect to the base 11, thereby moving the examination unit 12 with respect to the subject eye in the X direction (left-right direction), Y direction (up-down direction), and Z direction (front-back direction).

[0023] The joystick 21 is operated by an examiner (operator) to move the examination unit 12 relative to the eye to be examined. The joystick 21 is disposed on the base 11. For example, when an operation signal of the joystick 21 is input to the control unit 50, the alignment drive unit 13 is driven. Note that the alignment drive unit 13 may be configured to be mechanically interlocked with the operation of the joystick 21.

[0024] The monitor 16 displays various types of information (for example, an anterior eye image of the eye to be examined, an examination result of the optical characteristics of the eye to be examined, etc.). For example, the monitor 16 is provided on the examination unit 12 so as to be movable about a support shaft 16b extending in the Y direction of the examination unit 12 via a support arm 16a. Thereby, the position where the screen of the monitor 16 faces is arbitrarily moved from the position in the opposite direction of the subject to the positions in the left and right side surface directions of the examination unit 12. Further, the monitor 16 is attached to the support arm 16a so that the upward tilt angle can be arbitrarily changed. Thereby, the examiner can tilt the monitor 16 at an easy-to-see angle according to his / her own posture. Note that the monitor 16 may function as a touch panel and also serve as an operation unit for inputting an operation signal by the examiner.

[0025] The printer unit 200 is provided on the base 11. The printer unit 200 of the present disclosure is disposed around the joystick 21.

[0026] FIG. 2 is a diagram for explaining the configuration of the printer unit 200.

[0027] The printer unit 200 includes a storage unit 202 that stores a roll paper RP around which a sheet PA is wound, a printer 210 that prints on the sheet PA drawn out from the roll paper RP, and an opening / closing cover 206 that covers the roll paper RP and the printer 210 stored in the storage unit 202. The opening / closing cover 206 is disposed on the base 11 around the joystick 21 and opens upward with respect to the base 11.

[0028] The printer unit 200 also includes a flattening mechanism 240 for flattening the curled state of the paper PA pulled out from the roll paper RP. The printer unit 200 further includes a paper cutting unit 230 for cutting the paper discharged from the printer 210, and a paper holding unit 250 for temporarily holding the paper fully cut by the paper cutting unit 230. As shown in FIG. 3, the printer unit 200 also includes a cover opening mechanism unit 260 for opening the opening / closing cover 206.

[0029] <Printer> The printer 210 includes a printer main body 211 where a printing head (thermal head) 212 is disposed. The printer main body 211 is provided on the base 11 by a printer support 211a. The printing head 212 is controlled by the control unit 50 and prints inspection results and the like on the paper PA.

[0030] The printer 210 also includes a platen 222. The platen 222 is provided in a platen portion 220 attached to the opening / closing cover 206 side. The platen 222 is positioned so as to be at a predetermined position with respect to the printing head 212 when the opening / closing cover 206 is closed. The platen 222 has a function of pressing the paper PA against the printing head 212 and conveying (feeding) the paper PA in the discharge direction. The platen 222 has a platen shaft 222a. The printer main body 211 also has a motor 214 (see FIG. 4) for rotating the platen 222. When the opening / closing cover 206 is closed, a gear (not shown) attached to the platen shaft 222a meshes with a gear (not shown) attached to the motor 214, and the platen 222 is rotated in the conveying direction by the rotation of the motor 214. Thereby, the paper PA sandwiched between the printing head 212 and the platen 222 is sent out in the conveying direction. The motor 214 is controlled by the control unit 50.

[0031] <Flattening mechanism> The curling correction mechanism 240 is disposed between the roll paper RP stored in the storage unit 202 and the printer 210. The curling correction mechanism 240 includes a force applying mechanism 240A that applies a force in a direction opposite to the curling direction of the sheet PA to the sheet PA in the path between the roll paper RP stored in the storage unit 202 and the printer 210 (between the printing head 212 and the platen 222). For example, the force applying mechanism 240A includes a guide member 242 of a circular shaft. The guide member 242 is disposed at a position away from the side where the roll center of the roll paper RP is located with respect to the line segment connecting the sheet PA drawing position from the roll paper RP and the printer 210. In other words, the guide member 242 functions as a member that is wound in a direction opposite to the curling direction of the sheet PA in the middle of the path between the roll paper RP and the printer 210.

[0032] In this embodiment, the roll paper RP is placed such that the sheet PA is fed out from the side away from the opening / closing cover 206 with respect to the roll center. And the guide member 242 is disposed at a position closer to the opening / closing cover 206 side than the line segment connecting the sheet PA drawing position from the roll paper RP and the printer 210. The guide member 242 may have a curved surface that warps the sheet PA in a direction opposite to the curling direction of the sheet PA. By this arrangement of the guide member 242, a force in a direction opposite to the curling direction is applied to the sheet PA, and the curling habit of the sheet PA is corrected.

[0033] Note that the guide member 242 may be a protruding member having a curved surface on the contact surface with the sheet PA outside the circular shaft, as long as the sheet PA is fed without being caught and is less likely to be creased.

[0034] <Sheet cutting unit> The paper cutting unit 230 includes a cutter 232 disposed in the printer main body 211. The cutter 232 is disposed in the discharge path of the paper PA. The cutter 232 cuts (cuts) the paper PA conveyed by the platen 222 by the drive of the cutter drive unit 234 (see FIG. 4). Note that the cutting edge of the cutter 232 has a partial recess for partial cutting, and full cutting and partial cutting of the paper PA are enabled depending on the moving amount of the cutter 232. The moving amount of the cutter 232 is changed by the cutter drive unit 234 controlled by the control unit 50.

[0035] <Paper holding unit> The paper PA sent out from the printer 210 is configured to be discharged from a discharge port 251 having a gap formed between the open / close cover 206 and the base 11 (outer cover 11a of the base 11) of the ophthalmic device 10 when the open / close cover 206 is closed. And the paper holding unit 250 of the embodiment includes a holding member 252 provided on the open / close cover 206 in the vicinity of the discharge port 251.

[0036] The holding member 252 is provided on the open / close cover 206 such that a gap through which the paper PA sent out from the printer 210 can pass is formed between the holding member 252 and the outer cover 11a of the base 11 facing the open / close cover 206 when the open / close cover 206 is closed. And the holding member 252 has a frictional force for holding the cut paper PA at the position of the holding member 252 without slipping by being inclined and contacting when the paper PA is fully cut by the paper cutting unit 230. Note that the arrangement of the holding member 252 in the width direction of the paper PA may be a length corresponding to the width of the paper PA, or may be partially arranged as long as the paper PA can be held.

[0037] Also, for example, the frictional force of the holding member 252 is such that the cut paper PA does not slip off. The frictional force may be determined experimentally, or may be determined by calculating from the relationship between the weight of the paper PA of an assumed length and the contact area with the paper PA. The surface of the holding member 252 may be made of a material (for example, resin) having such a frictional force. Note that the frictional force as the holding force of the holding member 252 is set to such an extent that the paper PA can be easily removed when the examiner pulls the printed paper PA by hand.

[0038] <Cover opening mechanism section> As shown in FIG. 3, the cover opening mechanism section 260 includes an operation button 261 which is an example of an operation member operated by an examiner (operator) to open the opening / closing cover 206. The cover opening mechanism section 260 is configured by a mechanical mechanism that automatically opens the opening / closing cover 206 above the ophthalmic device 10 by one operation of the operation button 261 by the examiner.

[0039] In this embodiment, the opening / closing cover 206 is held by the shaft 263 so as to open above the base 11 (that is, the ophthalmic device 10) as shown by the dotted lines in FIGS. 2 and 3, centering around the shaft 263 attached above the storage section 202. The cover opening mechanism section 260 includes a spring 264 as an example of a biasing means that constantly biases the opening / closing cover 206 in the opening direction. For example, the spring 264 is a coil spring provided on the shaft 263, and its spring force acts to open the opening / closing cover 206 in the direction of arrow A centering around the shaft 263.

[0040] In addition, the cover opening mechanism unit 260 includes a lock mechanism 265 that locks the opening (movement in the opening direction) of the opening / closing cover 206 against the spring force of the spring 264 when the opening / closing cover 206 is closed. For example, as shown in FIG. 3, the operation button 261 is slidably held on the base 11 in the direction of arrow B. The operation button 261 is biased by a tension spring 264 to return to the state shown in FIG. 3 in the direction opposite to the direction of arrow B. Then, when the claw 267a that moves integrally with the operation button 261 enters the notch 268a formed in the lock member 268 extending from the opening / closing cover 206, the movement of the opening / closing cover 206 in the opening direction is fixed.

[0041] When the operation button 261 is pushed in the direction of arrow B, the claw 267a is disengaged from the notch 268ab, so that the lock mechanism 265 is released, and the opening / closing cover 206 is automatically moved in the opening direction by the spring force of the spring 264. That is, by one operation of the operation button 261 by the examiner, the opening / closing cover 206 opens.

[0042] Note that the operation button 261 may be an operation lever. In FIG. 3, the operation button 261 is shown as moving linearly in the direction of arrow B, but it may be configured to move in a rotational direction.

[0043] <Control System> FIG. 4 is a diagram for explaining the control system of the ophthalmic apparatus 10. In FIG. 4, the control unit 50 includes a CPU (processor), a RAM, a ROM, etc. The CPU controls the driving of each part in the ophthalmic apparatus 10. The RAM temporarily stores various kinds of information. The ROM stores various programs executed by the CPU and the like. Note that the control unit may be constituted by a plurality of control units (that is, a plurality of processors).

[0044] The control unit 50 is connected to various electrical elements including the ophthalmic examination unit 12, the alignment drive unit 13, the monitor 16, the joystick 21, the printer unit 200, etc. The control unit 50 is also connected to a storage unit 52 that stores the examination results and the like. The print head 212, the motor 214, and the cutter drive unit 234 of the printer 210 included in the printer unit 200 are controlled by the control unit 50.

[0045] <Operation> The operation of the ophthalmic device 10 having the above configuration will be described. In this embodiment, it is assumed that the ophthalmic examination unit 12 houses an eye refractive power measurement optical system which is an example of an examination optical system.

[0046] When the face of the subject is positioned on the face support unit 15, the positional relationship between the ophthalmic examination unit 12 and the eye to be examined is detected by the alignment optical system provided in the ophthalmic examination unit 12. Based on the detection result of the alignment optical system, the alignment drive unit 13 is controlled by the control unit 50, and thus the ophthalmic examination unit 12 is automatically moved in the XYZ directions. In the case of an eye for which automatic alignment is difficult, the ophthalmic examination unit 12 is moved by the examiner operating the joystick 21.

[0047] When the alignment of the ophthalmic examination unit 12 (examination optical system) with respect to the eye to be examined is completed, an examination (for example, eye refractive power measurement) is automatically executed under the control of the control unit 50, and the examination result is obtained. When the examination result of one eye to be examined is obtained, after the ophthalmic examination unit 12 is aligned with the other eye to be examined, the examination is automatically executed, and the examination result is obtained. The examination result is displayed on the monitor 16.

[0048] When the examination results of both the left and right eyes are obtained, the print head 212 of the printer 210 prints on the paper PA, and at the same time, the platen 222 is driven by controlling the motor 214, so that the paper PA is fed out from the printer 210.

[0049] Here, in the printer unit 200 of the present disclosure, a flattening mechanism 240 is provided. The sheet PA drawn from the roll paper RP is passed through a guide member 242 disposed in the middle of the path leading to the printer 210, whereby the curling habit of the sheet PA in the roll paper RP is corrected. That is, when the sheet PA passes through the curved surface of the guide member 242, a force is applied to warp the sheet PA in the direction opposite to the curling direction of the sheet PA, thereby correcting the curling habit of the sheet PA. As a result, when attaching the sheet PA with the inspection result discharged from the printer 210 to the medical record, the treatment for correcting the curling habit of the sheet PA, such as stretching the sheet PA, is reduced, and it becomes easier to attach the sheet PA to the medical record.

[0050] When the printing of the inspection by the printer 210 is completed, the drive of the cutter drive unit 234 is controlled by the control unit 50, and the sheet PA discharged from the discharge port 251 is fully cut by the sheet cutting unit 230 (cutter 232). At this time, the sheet PA discharged from the discharge port 251 is temporarily held by the sheet holding unit 250 (the frictional force of the holding member 252 provided near the discharge port 251) without falling from the printer unit 200. As a result, in the case of partial cutting, the examiner (operator) does not have the trouble of tearing the sheet PA by hand, and inconveniences such as the sheet PA being chipped due to failure to tear the sheet properly when tearing the sheet are eliminated, and the inconvenience of the fully cut sheet falling is eliminated. In addition, the cut sheet PA can be taken out with a light force.

[0051] <Replacement of the printing paper> When the roll paper RP in the printer unit 200 runs out of paper, the examiner (operator) opens the opening / closing cover 206 and replaces it with a new roll paper RP. In this case, when the operation button 261 is pressed (in the direction of arrow B in FIG. 3), the claw 267a of the lock mechanism 265 disengages from the notch 268a, and the lock of the opening / closing cover 206 is released. When the lock is released, the opening / closing cover 206 is automatically opened above the base 11 by the spring force of the spring 264 without the examiner holding the opening / closing cover 206 by hand.

[0052] The inspector installs the new roll paper RP in the storage section 202. At this time, the paper PA pulled out from the roll paper RP is set to pass through the guide member 242, and the leading end of the paper PA is set to protrude slightly from the exterior cover of the base 11. Then, when the inspector manually operates and closes the opening / closing cover 206, the paper PA is sandwiched between the printing head 212 and the platen 222. Also, when the opening / closing cover 206 is moved in the closing direction, the locking member 268 pushes the pawl 267a, and the notch 268a drops to a predetermined position, so that the pawl 267a enters the notch 268a by the coil spring 266b, and the opening / closing cover 206 is locked.

[0053] Here, in the case where the opening / closing cover 206 is located on the side surface of the base 11 and opens to the inspector side (the side opposite to the eye to be examined), and the ophthalmic device 10 (the inspector side of the base 11) is installed in a cramped place such as against the wall of the room, it is difficult to open the opening / closing cover 206 and difficult to replace the roll paper RP.

[0054] On the other hand, in the printer unit 200 of the present disclosure, the opening / closing cover 206 has a structure that opens upward of the base 11, and is configured to automatically open the opening / closing cover 206 by one operation of the operation button 261 by the inspector. Therefore, even when the ophthalmic device 10 (the inspector side of the base 11) is installed in a cramped place such as against the wall, the opening / closing cover 206 can be opened without trouble, and it is easy to replace the roll paper RP.

[0055] In the ophthalmic apparatus 10 of the present embodiment, the opening / closing cover 206 is arranged on the upper surface around the joystick 21. If, when opening the opening / closing cover 206, after the examiner operates the operation button 261 and then performs an operation of lifting the opening / closing cover 206 upward by hand, the joystick 21 may get in the way and it may be difficult to perform the operation of opening the opening / closing cover 206 upward by hand. On the other hand, in the printer unit 200 of the present disclosure, as described above, since the opening / closing cover 206 opens upward by a single operation of the operation button 261 by the examiner, the inconvenience of the joystick 21 being located in the vicinity of the opening / closing cover 206 is reduced.

[0056] In addition, when the ophthalmic apparatus 10 (on the examiner side of the base 11) is installed against the wall, the examiner may be located on either the left or right side surface of the ophthalmic apparatus 10, and the monitor 16 rotatably held by the support shaft 16b may be moved to the side where the examiner is located. Thereby, the examiner can perform the examination while observing the monitor 16.

[0057] <Modified Example> As described above, the typical embodiments of the present disclosure have been described. However, the present disclosure is not limited to the embodiments shown above, and various modifications are possible.

[0058] For example, regarding the sheet holding unit 250, a mechanism (an electric holding mechanism by the operation of a motor) that sandwiches and holds the discharged sheet PA may operate in conjunction with a full cut of the sheet PA by the sheet cutting unit 230. In this case, when the examiner takes out the sheet PA, the holding of the holding mechanism may be released based on the detection of the pulling of the sheet PA.

[0059] Regarding the sheet holding unit 250, instead of the holding member 252 having frictional force, as shown in FIG. 5, a brush-shaped (broom-shaped) holding member 253 may be used. In this case, the brush tip 253a of the holding member 253 contacts the sheet PA discharged along the upper surface 11a of the decorative cover of the base 11 forming the discharge port 251, thereby applying a slight pressing force to the sheet PA. As a result, the fully cut sheet PA is held without falling. In this case, the brush-shaped holding member 253 is preferably provided inclined with respect to the base 253b fixed to the opening / closing cover 206 so that the brush tip 253a faces the outlet of the discharge port 251. In this way, the leading end of the sheet PA being fed out is easily inserted between the upper surface 11a of the decorative cover and the brush tip 253.

[0060] Also, regarding the sheet holding unit 250, in the cutting of the sheet PA by the sheet cutting unit 230, the switching between full cut and partial cut may be controlled by the control unit 50 according to the length (feeding amount) of the sheet PA being fed out. For example, when the sheet PA fed out from the printer 210 is within a predetermined length that can be sufficiently held by the sheet holding unit 250, the sheet cutting unit 230 is controlled to perform a full cut. When the sheet PA exceeds the predetermined length, the sheet cutting unit 230 is switched to a partial cut. As a result, even when the fed-out sheet PA is long, by switching to a partial cut, the sheet PA does not need to fall. When the sheet PA is within the predetermined length, by fully cutting the sheet PA, the inconvenience associated with the examiner tearing the sheet PA can be reduced.

[0061] Regarding the cover opening mechanism 260, in the above description, the spring 264 is taken as an example of the biasing means that constantly biases the opening / closing cover 206 in the opening direction, but it is not limited to this. For example, a magnet may be used instead of the spring 264. Alternatively, in the opening and closing of the opening / closing cover 206 with the shaft 263 as the fulcrum, instead of the spring 264, a weight considering the center of gravity of the opening / closing cover 206 may be attached in the direction opposite to the side where the main body of the opening / closing cover 206 is located with respect to the shaft 263. Also in these cases, when the lock of the lock mechanism 265 is released, the opening / closing cover 206 is automatically opened.

Explanation of Signs

[0062] 10 Ophthalmic device 11 Base 12 Examination part 21 Joystick 50 Control unit 200 Printer unit 202 Storage part 206 Opening / closing cover 210 Printer 230 Paper cutting part 240 Straightening mechanism 240A Force applying mechanism 242 Guide member 250 Paper holding part 252 Holding member 260 Cover opening mechanism part 261 Operation button 265 Lock mechanism

Claims

1. An eye examination unit for examining an eye to be examined, a storage unit for storing a roll paper, a printer for printing the examination result of the eye to be examined by the eye examination unit on a paper pulled out from the roll paper, and an opening / closing cover for covering the roll paper stored in the storage unit and the printer, and a printer unit having the same, The printer unit (a) a curling correction mechanism for correcting the curled state of the paper pulled out from the roll paper, (b) a paper cutting and holding mechanism having a paper cutting unit for cutting the paper discharged from the printer and a paper holding unit for temporarily holding the paper fully cut by the paper cutting unit, (c) an operation button operated by an operator to open the opening / closing cover, and a mechanical cover opening mechanism for automatically opening the opening / closing cover above the ophthalmic device by one operation of the operation button, An ophthalmic device characterized by comprising at least one of the above.

2. In the ophthalmic device according to Claim 1, The curling correction mechanism is characterized by comprising a force applying mechanism for applying a force in a direction opposite to the curling direction of the paper to the paper in a path between the roll paper stored in the storage unit and the printer.

3. In the ophthalmic device according to Claim 2, The force applying mechanism is a guide member that is separated from the side where the roll center of the roll paper is located with respect to a line segment connecting the paper pulling position of the paper from the roll paper and the printer, and is characterized by comprising a guide member having a curved surface for warping the paper in a direction opposite to the curling direction of the paper.

4. In the ophthalmic device according to Claim 1, The paper fully cut by the paper cutting unit is configured to be discharged from a discharge port having a gap formed between the opening / closing cover and the ophthalmic device side in a state where the opening / closing cover is closed, The paper holding part is a holding member provided on the opening / closing cover. When the opening / closing cover is closed, a gap through which the paper from the printer can be discharged is formed between the paper holding part and the side of the ophthalmic device facing the opening / closing cover, and the paper holding part includes a holding member that holds the paper fully cut by the paper cutting part by frictional force or pressing force. An ophthalmic device characterized by this.

5. In the ophthalmic device according to claim 1 or 4, The paper cutting part is capable of fully cutting and partially cutting the paper, and includes a switching means for switching between full cutting and partial cutting of the paper according to the length of the paper sent out from the printer. An ophthalmic device characterized by this.

6. In the ophthalmic device according to claim 1, The cover opening mechanism includes a biasing means for biasing the opening / closing cover in the opening direction, and a locking mechanism for mechanically locking the opening of the opening / closing cover in the state where the opening / closing cover is closed against the biasing means. When the locking mechanism is released by operating the operation button, the opening / closing cover is automatically opened upward by the biasing force of the biasing means. An ophthalmic device characterized by this.

7. In the ophthalmic device according to claim 1 or 6, The ophthalmic device includes a base on which the examination part is movably mounted, and a joystick operated by an examiner to move the examination part relative to the eye to be examined, and the joystick is arranged on the base. The opening / closing cover is arranged on the base around the joystick and opens upward with respect to the base. An ophthalmic device characterized by this.

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