JP2018042687A - Composite inspection apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite inspection apparatus capable of coping with a plurality of inspections on eye characteristics that are different from subject to subject, by itself.SOLUTION: A composite inspection apparatus includes a rotary unit which is provided rotatably around a rotating shaft and which exchangeably holds a plurality of kinds of optometrical units for performing inspections on different eye characteristics for eyes to be examined along a shaft circumferential of the rotating shaft. By rotating around the rotating shaft, the rotary unit selectively moves the plurality of kinds of optometrical units to facing positions facing the eyes to be examined.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a combined inspection apparatus that inspects a plurality of eye characteristics of an eye to be examined.

  In the ophthalmology, various examinations such as measurement of eye refractive power, examination of intraocular pressure, and examination of corneal endothelial cells are performed as examinations of eye characteristics of the eye to be examined. And as an inspection apparatus (also referred to as an ophthalmologic apparatus) for inspecting such eye characteristics, in order to effectively use a limited space in the examination room or the examination room, and to eliminate the movement of the subject for each examination, A compound examination apparatus (composite ophthalmologic apparatus) that performs examination of a plurality of eye characteristics with one apparatus is known.

  For example, Patent Document 1 describes a combined examination apparatus in which an intraocular pressure measurement unit that measures intraocular pressure and an ocular refraction measurement unit that measures eye refractive power are stacked.

  Patent Document 2 and Patent Document 3 include an optometry unit including an intraocular pressure measurement unit and an eye refractive power measurement unit, and a rotation drive unit that rotates the optometry unit around a rotation axis. Describes a combined examination apparatus that sequentially moves the intraocular pressure measurement unit and the ocular refractive power measurement unit to a position facing the eye to be examined by rotating the lens.

JP 2014-217699 A JP 2013-230303 A JP 2013-220196 A

  By the way, the working distance at the time of measuring intraocular pressure is shorter than the working distance at the time of measuring eye refraction. For this reason, in the combined inspection apparatus of Patent Document 1 in which the intraocular pressure measurement unit and the ocular refractive power measurement unit are stacked in the vertical direction, switching between an inspection by the intraocular pressure measurement unit and an inspection by the ocular refraction measurement unit In addition to the vertical movement of the device, it is necessary to move in the front-rear direction. For this reason, in Patent Document 1, the time required for switching between the examination by the intraocular pressure measurement unit and the examination by the eye refraction measurement unit becomes long. Moreover, in the composite examination apparatus of Patent Document 1, examination items are fixed, and examinations other than intraocular pressure and eye refractive power (for example, examination of corneal endothelial cells) cannot be performed. For this reason, depending on the subject, necessary examinations (corneal endothelial cells, etc.) may not be performed with one combined examination apparatus.

  On the other hand, in the combined examination apparatuses described in Patent Document 2 and Patent Document 3, the measurement of the eye refractive power and the examination of the intraocular pressure can be switched by rotating the optometry unit. Inspection can be switched in a short time. However, even in the combined inspection apparatuses described in Patent Document 2 and Patent Document 3, since the inspection items are fixed, one test necessary for some subjects is performed as in the combined inspection apparatus of Patent Document 1 described above. There are cases where it cannot be performed by a combined inspection apparatus.

  As described above, the inspection items of the eye characteristics are often different for each subject. In this case, the combined inspection apparatus described in each of the above patent documents cannot cope with all inspections. For this reason, it is still necessary to provide a plurality of types of inspection devices (composite inspection devices) in an examination room or the like, and it is also necessary to move the subject for each inspection.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a composite inspection apparatus capable of handling a plurality of eye characteristic inspections different for each subject with a single apparatus.

  A compound inspection apparatus for achieving the object of the present invention is a rotating unit that is provided so as to be rotatable about a rotation axis, and includes a plurality of types of optometry units that inspect different eye characteristics of the eye to be examined. A rotation unit that holds each of the rotation axes so as to be exchangeable along the axis of the rotation axis, and the rotation unit rotates around the rotation axis to selectively oppose a plurality of types of optometry units to the eye to be examined. Move to.

  According to this composite inspection apparatus, since a plurality of arbitrary optometry units selected by the examiner can be attached to the rotation unit in accordance with the types of examination having different eye characteristics for each examinee, the examination can be performed. A plurality of eye characteristics different for each examiner can be inspected with one apparatus.

  In the composite inspection apparatus according to another aspect of the present invention, the rotation axis is substantially vertical or substantially parallel to the horizontal direction. Thereby, it is possible to selectively move a plurality of types of optometry units held for each unit holding unit to a facing position that faces the eye to be examined. Here, “substantially vertical and substantially parallel” includes not only being completely perpendicular and parallel to the horizontal direction but also including a state (for example, within ± 5 °) that is slightly angled from a state that is completely perpendicular and parallel.

  In the composite inspection apparatus according to another aspect of the present invention, a rotation drive unit that rotationally drives the rotation shaft, a first order determination unit that determines a first inspection order for performing inspection with a plurality of types of optometry units, and a first order A rotation drive control unit that rotationally controls the rotation drive unit based on the first examination order determined by the decision unit, and selectively moves the plurality of types of optometry units to the opposing positions in the first examination order. Thereby, the test | inspection in a multiple types of optometry unit can be performed in order according to a 1st test | inspection order.

  The composite inspection apparatus according to another aspect of the present invention includes a unit identification unit that identifies types of a plurality of types of optometry units held by the rotation unit. The rotational drive control is performed based on the first inspection order determined by the one order determination unit. Thereby, the kind of optometry unit currently hold | maintained for every unit holding | maintenance part can be identified automatically, and the test | inspection in a multiple types of optometry unit can be performed in order according to a 1st test | inspection order.

  In the combined examination apparatus according to another aspect of the present invention, the rotation unit includes a plurality of unit holding units that respectively hold a plurality of types of optometry units, and a plurality of first order determination units are provided in the rotation unit. The first inspection order is determined based on the holding unit order in which the unit holding units are ordered in advance. As a result, it is possible to sequentially perform the examinations using a plurality of types of optometry units according to the holding unit order regardless of the type of examination.

  In the combined examination apparatus according to another aspect of the present invention, the rotation unit includes a first axis parallel to the rotation axis, a second axis orthogonal to the first axis and parallel to the eye width direction of the eye to be examined, A unit moving unit that moves in a three-axis direction including a third axis orthogonal to both the axis and the second axis is provided. Thereby, the position adjustment of the triaxial direction of the optometry unit set to the opposing position can be performed.

  In the combined examination apparatus according to another aspect of the present invention, the position of the first optometry unit which is a first optometry unit positioned at an opposing position among the plurality of types of optometry units and is adjusted with respect to the eye to be examined. From the eye position detection unit for detecting the position of the eye to be examined, the working distance obtaining unit for obtaining the working distance for each of a plurality of types of optometry units with respect to the eye to be examined, and a plurality of types of optometry units as the rotation unit rotates When the second optometry unit different from the first optometry unit is moved to the opposite position, the subject eye detection unit detects the subject eye position detected by the subject eye position detection unit and the working distance acquired by the working distance acquisition unit. A position determination unit that determines the position of the second optometry unit with respect to the optometry in the triaxial direction, and the rotation unit rotates when the second optometry unit is moved toward the opposite position as the rotation unit rotates. Comprising a rotation angle, based on the third axial position location determination unit is determined, and controls the unit moving unit, and the unit movement controller for adjusting the position of the second eye unit. By simultaneously performing the rotation of the rotation unit and the position adjustment of the second optometry unit, the time required to start the next examination can be shortened.

  In the combined examination apparatus according to another aspect of the present invention, a second examination order indicating a first eye to be examined first and a second eye to be examined later is determined for each of a plurality of types of optometry units. A second order determining unit, wherein the unit movement control unit controls the unit moving unit based on the second examination order determined by the second order determining unit to inspect the first optometry unit and the first eye. The eye movement position is sequentially moved to the eye inspection position and the second eye inspection position for inspecting the second eye. Thereby, the examination of both eyes of the eye to be examined can be performed in a desired order.

  In the composite examination apparatus according to another aspect of the present invention, a first optometry unit having a rotation drive unit that rotationally drives a rotation shaft and a projecting part that projects toward the subject's eye is moved to the first eye examination position by the unit moving unit. When moving from the first eye examination position to the second eye examination position, the rotation drive unit is controlled to rotate the rotation unit in the direction in which the protrusion is retracted from the subject's nose. A collision avoidance control unit that executes rotation control for rotating the rotation unit to a position facing the second eye. Thereby, the collision of the protrusion part to a subject's nose can be avoided.

  In the combined examination apparatus according to another aspect of the present invention, the plurality of types of optometry units are hand-held optometry apparatuses having a handle portion that is held by the examiner, and the rotation unit detachably holds the handle portion. Thus, the eye characteristics can be inspected alone by removing the optometry unit from the rotating unit. As a result, it is possible to use both a stationary (desktop) type compound inspection device and a hand-held inspection device in one unit, so there is no need to prepare both separately, thereby reducing both the purchase cost and installation space of the device. Can be reduced.

  In the combined examination apparatus according to another aspect of the present invention, the output result output from the first optometry unit moved to the opposite position among the plurality of types of optometry units is analyzed, and the eye characteristics of the first optometry unit are analyzed. An analysis unit that obtains a test result and a display unit that displays a test result of an eye characteristic obtained by the analysis unit. Thereby, the test result of the eye characteristic obtained for each optometry unit can be displayed.

  The combined inspection apparatus of the present invention can handle a plurality of eye characteristic inspections that differ for each subject with a single apparatus. Moreover, an optometry unit can be selected corresponding to a different examination routine for each hospital.

It is the appearance perspective view which looked at the compound inspection device of a 1st embodiment of the present invention from the examiner side. It is the external appearance perspective view which looked at the compound inspection device of a 1st embodiment from the subject side. It is a perspective view of the compound inspection device for explaining the attachment structure of a touch panel type monitor via an arm. It is the schematic which looked at the compound inspection device from the upper surface side. It is the perspective view of the double rotating shaft shown in the state where a part of rotation unit was notched. It is sectional drawing of the double rotating shaft which follows the 6-6 line in FIG. It is an exploded view of a double rotating shaft. It is explanatory drawing for demonstrating an example of the attachment structure of the rotation unit to a double rotating shaft. It is sectional drawing which showed an example of the attachment structure of each optometry unit to a rotation unit. It is the perspective view which showed an example of the attachment structure of each optometry unit to a rotation unit. It is the schematic of the structure of the optometry unit which performs KR test | inspection (eye refractive power measurement and corneal shape measurement), especially the test optical system for KR test | inspection provided in the optometry unit. It is the schematic of the structure of the optometry unit which performs SP test | inspection (corneal endothelial cell test | inspection), especially the test optical system for SP test | inspection provided in the optometry unit. It is the upper surface schematic which looked at the test | inspection optical system of the optometry unit which performs CT test | inspection (intraocular pressure test) from the upper side. It is the side surface schematic diagram which looked at the test | inspection optical system of the optometry unit of FIG. 13 from the side (X-axis direction) side. It is a block diagram which shows the electric constitution of the control part provided in the base. It is explanatory drawing for demonstrating determination of the 1st inspection order and the 2nd inspection order by an order determination part. It is explanatory drawing for demonstrating other embodiment of the determination of the 1st test | inspection order by an order determination part. It is a flowchart which shows the flow of the test | inspection process of the several eye characteristic by the compound inspection apparatus of 1st Embodiment. It is a block which shows the electric constitution of the compound inspection apparatus of 2nd Embodiment. It is explanatory drawing for demonstrating the movement process of the rotation unit which the unit movement control part of 2nd Embodiment performs. It is a flowchart which shows the flow of the test | inspection process of the several eye characteristic by the compounded inspection apparatus of 2nd Embodiment. It is explanatory drawing for demonstrating the 1st example of the collision avoidance control by a rotational drive control part. It is explanatory drawing for demonstrating retraction | saving control of the 2nd example of the collision avoidance control by a rotational drive control part. It is explanatory drawing for demonstrating the rotation control of the 2nd example of the collision avoidance control by a rotation drive control part. It is a front perspective view of the optometry unit for KR inspection. It is a front perspective view of the optometry unit for SP inspection. It is a front perspective view of an optometry unit for CT examination. FIG. 28 is a rear perspective view of each optometry unit shown in FIGS. 25 to 27. It is an external appearance perspective view of the compound inspection apparatus of 3rd Embodiment. It is the schematic of the compound inspection apparatus of 4th Embodiment. It is a top view of the composite inspection apparatus of 5th Embodiment. It is the front view which looked at the compound inspection device of a 5th embodiment from the subject side. It is explanatory drawing for demonstrating the modification of the opposing position in 5th Embodiment. It is explanatory drawing for demonstrating the modification usage example of the compound inspection apparatus of 1st Embodiment.

[Configuration of Compound Inspection Apparatus of First Embodiment]
FIG. 1 is an external perspective view of the composite inspection apparatus 10 according to the first embodiment of the present invention as viewed from the side of an examiner such as a doctor. FIG. 2 shows the composite inspection apparatus 10 according to the first embodiment as a subject (patient). It is the external appearance perspective view seen from the side. Here, the X-axis direction in the figure is the left-right direction with respect to the subject [the eye width direction of the eye E (see FIG. 4)], and the Y-axis direction is the vertical direction. Further, the Z-axis direction orthogonal to both the X-axis direction and the Y-axis direction is a front-rear direction parallel to the front direction approaching the subject and the rear direction moving away from the subject. The X axis corresponds to the second axis of the present invention, the Y axis corresponds to the first axis of the present invention, and the Z axis corresponds to the third axis of the present invention.

  As shown in FIGS. 1 and 2, the combined examination apparatus 10 is an apparatus that can perform examination of a plurality of eye characteristics of a subject eye E (see FIG. 4) that is different for each subject with a single device. 12, a face support unit 13, a double rotation shaft 14, a rotation unit 15, a plurality of types of optometry units 16, an operation lever 19, and a touch panel monitor 20. On the base 12, a face support portion 13, a double rotation shaft 14 and a rotation unit 15, and an operation lever 19 are provided from the front (subject) side to the rear (examiner) side. Yes.

  The face support unit 13 has a chin rest and a forehead support, and supports the subject's face at a predetermined support position during an inspection by the combined inspection apparatus 10.

  The double rotating shaft 14 corresponds to the rotating shaft of the present invention, and is perpendicular to the horizontal direction (including substantially vertical, the same hereinafter), that is, parallel to the Y axis direction (including substantially parallel, hereinafter). The rotation unit 15 and the touch panel monitor 20 are held so as to be rotatable relative to each other around the same rotation center C.

  The rotating unit 15 has a cylindrical shape, and the double rotating shaft 14 passes through the center thereof. Thereby, the rotation unit 15 is held by the double rotation shaft 14 so as to be rotatable about the double rotation shaft 14 (rotation center C). On the upper surface of the rotating unit 15, a unit holding portion 15a (see FIG. 10) for selectively detachably and detachably holding one of a plurality of types of optometry units 16 is provided around the axis of the rotation center C. A plurality are provided (three in this embodiment). As a result, the rotation unit 15 can hold a maximum of three types of optometry units 16.

  The plurality of types of optometry units 16 have the same shape as each other, but inspect different eye characteristics. In the present embodiment, eye refractive power measurement (spherical power, astigmatism power, astigmatism axis angle, etc.), corneal shape measurement, and corneal endothelial cell inspection are performed on the subject's eye E (see FIG. 4). An example of performing an intraocular pressure test will be described. In this case, three types of optometry units 16A, 16B, and 16C respectively corresponding to the above-described examinations are selected from a plurality of types of optometry units 16, and are held in each unit holding unit 15a (also referred to as a unit holding region). .

  The optometry unit 16A is an Auto Refract-Keratometer (KR) that measures the eye refractive power and corneal shape of the eye E (see FIG. 4). The optometry unit 16B is a corneal endothelial cell inspection device (Specular microscope: SP) that inspects corneal endothelial cells of the eye E to be examined. The optometry unit 16C is a non-contact tonometer (CT) that inspects the intraocular pressure of the eye E.

  Hereinafter, the optometry units 16A, 16B, and 16C are appropriately indicated as “KR”, “SP”, and “CT” on the drawings, respectively, and “measurement of eye refractive power and corneal shape” is abbreviated as “KR examination”. “Examination of corneal endothelial cells” is abbreviated as “SP examination” and “inspection of intraocular pressure” is abbreviated as “CT examination”.

  Three different types of optometry units 16 including the optometry units 16A, 16B, and 16C are detachably and interchangeably held by the unit holding portions 15a (see FIG. 10) of the rotation unit 15, respectively. At this time, each optometry unit 16 (optometry units 16A, 16B, 16C) has a substantially arc shape with a central angle of 120 ° when viewed from the vertical direction (Y-axis direction). It is detachably and interchangeably held at 120 ° intervals around the axis of the rotation shaft 14 (rotation center C). The total central angle of each optometry unit 16 is 360 °, and the optometry units 16 are in contact with each other on the rotation unit 15 to form a circular shape.

  Each optometry unit 16 has an inspection optical system corresponding to the type of eye characteristic inspection (KR inspection, SP inspection, CT inspection, etc.), which will be described in detail later.

  Since each optometry unit 16 is detachably and interchangeably held with respect to each unit holding portion 15a, the combination of eye characteristic inspections performed by the composite inspection apparatus 10 can be arbitrarily changed. For example, when OCT (Optical Coherence Tomography) inspection is performed instead of SP inspection, an optometry unit for OCT inspection (not shown) is detachably and interchangeably held by the unit holding portion 15a instead of the optometry unit 16B. As a result, the combined inspection apparatus 10 can combine a maximum of three types of eye characteristic inspections.

  The operation lever 19 is an operation member that is operated when adjusting the position of the rotary unit 15 in the three-axis directions (XYZ-axis directions). By tilting the operation lever 19 in the XZ direction, the rotation unit 15 moves in each direction, and by rotating about the axis of the operation lever 19, it moves in the Y direction (up and down). Further, a measurement button is provided at the top of the operation lever 19, and each optometry can be started manually by pressing the measurement button. The operation lever 19 may be provided separately from the base 12. Instead of the operation lever 19, various operation units such as operation buttons may be provided. Furthermore, when a position adjustment operation in the three-axis direction of the rotary unit 15 is performed with a touch panel monitor 20 described later, the operation member such as the operation lever 19 may be omitted.

  The touch panel type monitor 20 corresponds to a display unit of the present invention, and an inspection unit for an eye characteristic test result obtained for each optometry unit 16 and an eye E (see FIG. 4) for each eye characteristic test. A real-time moving image observation image of the anterior segment of the eye E to be used for adjusting the position of the eye, an operation menu for performing operations relating to examination of each eye characteristic, and the three-axis directions of the rotation unit 15 Various images including an operation unit for performing the position adjustment operation. The touch panel monitor 20 is attached to the double rotary shaft 14 via an arm 24. Various monitors other than the touch panel monitor 20 may be provided instead.

  FIG. 3 is a perspective view of the combined inspection apparatus 10 for explaining the mounting structure of the touch panel monitor 20 via the arm 24, and FIG. 4 is a schematic view of the combined inspection apparatus 10 as viewed from the upper surface side. As shown in FIGS. 3 and 4, one end of the arm 24 is attached to the upper surface of the double rotary shaft 14 via a mounting shaft 25 a perpendicular to the rotation center C. On the other hand, the other end of the arm 24 is attached to the touch panel monitor 20 via an attachment shaft 25b perpendicular to the rotation center C. Thereby, the inclination angle of the touch panel monitor 20 about the axis perpendicular to the rotation center C can be arbitrarily adjusted.

  The length of the arm 24 is formed to be longer than the length in the radial direction of each optometry unit 16 around the double rotation shaft 14 (rotation center C). Thereby, even if the arm 24 is laid down horizontally, the touch panel monitor 20 is prevented from touching each optometry unit 16 held on the rotary unit 15. Further, by holding the touch panel monitor 20 via the arm 24, the touch panel monitor 20 can be held at a position closer to the examiner. As a result, it is easy for the examiner to check the screen of the touch panel monitor 20 and to perform a touch operation.

  The touch panel monitor 20 is held by a double rotation shaft 14 via an arm 24 so as to be rotatable about a rotation center C independently of the rotation unit 15. Accordingly, the touch panel monitor 20 can be freely rotated along a circular locus having the rotation center C as the center and the arm 24 as the radius. Thereby, since the position of the examiner with respect to the subject can be freely changed, for example, the examiner is positioned on the side of the apparatus and performs the opening operation of opening the subject's eyelid, while each optometry unit 16 is operated. It is possible to carry out an examination of eye characteristics by any of the following.

  FIG. 5 is a perspective view of the double rotary shaft 14 shown with a part of the rotary unit 15 cut away. FIG. 6 is a cross-sectional view of the double rotary shaft 14 taken along line 6-6 in FIG. FIG. 7 is an exploded view of the double rotating shaft 14. FIG. 8 is an explanatory diagram for explaining an example of a structure for attaching the rotary unit 15 to the double rotary shaft 14. In FIG. 7 and subsequent figures, the touch panel type monitor 20, the arm 24, and the like are appropriately omitted in order to prevent the drawing from becoming complicated.

  As shown in FIGS. 5 to 8, the double rotation shaft 14 includes an inner rotation shaft 14 a that rotates about the rotation center C, and is rotatably held on the outer periphery of the inner rotation shaft 14 a and is centered on the rotation center C. And an outer rotating shaft 14b that rotates as described above.

  The inner rotating shaft 14a has a column shape extending in the Y-axis direction. A lower end portion of the inner rotation shaft 14 a is held rotatably about a rotation center C by a shaft support portion 27 provided in the base 12. Further, the inner rotation shaft 14 a extends upward of the base 12 through an opening 12 a formed in the base 12. An upper end portion of the inner rotary shaft 14a extends upward from an upper end portion of an outer rotary shaft 14b described later, and an arm 24 is attached to the upper end portion of the inner rotary shaft 14a via the mounting shaft 25a. ing.

  The outer rotating shaft 14b has a cylindrical shape extending in the Y-axis direction, and is rotatably held on the outer periphery of the inner rotating shaft 14a on the shaft support portion 27. As a result, the outer rotation shaft 14b is rotatable about the rotation center C independently of the inner rotation shaft 14a. The rotation unit 15 is fixed to the outer periphery of the outer rotation shaft 14b so as not to be relatively rotatable.

  Here, in this embodiment, by fitting the attachment shaft 29 provided at the lower end portion of the rotary unit 15 into the attachment hole 30a of the annular support portion 30 formed annularly at the lower end portion of the outer rotation shaft 14b, The rotating unit 15 is fixed to the outer peripheral side of the outer rotating shaft 14b so as not to be relatively rotatable (see FIGS. 7 and 8). The method for fixing the rotation unit 15 is not particularly limited. Thereby, the rotation unit 15 rotates around the rotation center C integrally with the outer rotation shaft 14b. As a result, the rotation unit 15 fixed to the outer rotation shaft 14b and the touch panel monitor 20 fixed to the inner rotation shaft 14a via the arm 24 rotate independently about the rotation center C, respectively.

  The rotating unit 15 has a cylindrical shape that extends in the Y-axis direction and has a constant inner diameter and an outer diameter that gradually increases from below to above. As described above, the rotary unit 15 is fixed (externally fixed) to the outer periphery of the outer rotary shaft 14b.

  In the base 12, for example, a motor and gears are provided, and a rotation drive unit 32 that rotationally drives the rotation unit 15 (outer rotation shaft 14 b) around the rotation center C is provided (see FIG. 6). . In addition, the rotational drive system of the rotation unit 15 by the rotational drive part 32 is not specifically limited, A well-known rotational drive system can be employ | adopted.

  Further, in the base 12, a unit moving unit 33 is provided for moving the rotating unit 15 holding each optometry unit 16 in the above-described three-axis directions (XYZ-axis directions) via the shaft support unit 27 ( (See FIG. 6). The moving method of the rotating unit 15 by the unit moving unit 33 is not particularly limited, and a known moving method can be adopted.

  On the upper surface of the rotation unit 15, three substantially arc-shaped unit holding portions 15a (see FIG. 10) having a central angle of 120 ° are provided around the axis of the rotation center C at intervals of 120 °. Each unit holding portion 15a is provided with an interface 35a capable of selectively connecting any one of a plurality of types of optometry units 16 (see FIG. 8).

  The interface 35a is electrically connected to a control unit 37 (see FIG. 15) provided in the base 12 through a signal line (not shown) that passes through both the rotary unit 15 and the double rotary shaft 14. Yes. In addition, the method of electrically connecting the interface 35a and the control part 37 is not specifically limited, A well-known method is employable.

  9 and 10 are a cross-sectional view and a perspective view showing an example of a mounting structure of each optometry unit 16 (optometry units 16A, 16B, 16C) to the rotation unit 15. FIG. As shown in FIGS. 9 and 10, each optometry unit 16 is provided with an interface 35b that can be connected to the interface 35a of each unit holding portion 15a.

  For example, when KR inspection, SP inspection, and CT inspection are performed on the eye E, an interface 35b of three types of optometry units 16 (optometry units 16A, 16B, and 16C) selected from a plurality of types of optometry units 16. Are connected to the interface 35a of each unit holding part 15a. Thereby, each optometry unit 16A, 16B, 16C is hold | maintained separately by each unit holding | maintenance part 15a so that attachment or detachment is possible.

  Each optometry unit 16 held by the rotation unit 15 is driven to rotate the rotation unit 15 by the rotation drive unit 32 described above, so that it faces the eye E, that is, a position where the eye E is examined. Is selectively moved. Thereby, each optometry unit 16 currently hold | maintained at the rotation unit 15 can be selectively moved to an opposing position in a desired movement order.

  Further, each optometry unit 16 held by the rotation unit 15 is electrically connected to the control unit 37 (see FIG. 15) via the interfaces 35a, 35b and the like. As a result, power can be supplied to each optometry unit 16, and various signals and data can be transmitted to and received from the control unit 37.

<Configuration of optometry unit for KR examination>
FIG. 11 is a schematic diagram of a configuration of the optometry unit 16A that performs the KR test, in particular, a test optical system for KR test provided in the optometry unit 16A.

  As shown in FIG. 11, the optometry unit 16A includes a fixation target projection optical system 41, an observation optical system 42, an eye refractive power measurement ring-shaped index projection optical system 43, and a light receiving optical system as inspection optical systems. 44 and an alignment light projection system 45.

  The fixation target projection optical system 41 projects a target on the fundus oculi Ef (see FIG. 13) of the subject eye E in order to fixate or cloud the subject eye E. The observation optical system 42 observes the anterior eye part (pupil and iris) of the eye E. The ring refractive index projection optical system 43 for measuring eye refractive power projects a pattern light beam as a ring refractive index for measuring eye refractive power onto the fundus oculi Ef of the eye E to measure the eye refractive power of the eye E. The light receiving optical system 44 causes the imaging element 44d described below to capture an eye refractive power measurement ring-shaped index image reflected from the fundus oculi Ef of the eye E.

  The alignment light projection system 45 projects the index light toward the eye E to detect the alignment state in the XY axis direction (up / down / left / right direction). The optometry unit 16A is provided with a working distance detection optical system for detecting the working distance between the eye E and the optometry unit 16A, although not shown. Here, the working distance is a distance set in accordance with the configuration of the inspection optical system and the like for each optometry unit 16 in order to appropriately perform the inspection for each of the plural types of optometry units 16 including the optometry unit 16A. For example, it is the distance from the tip position of the housing of the optometry unit 16 to the eye E to be examined.

  The fixation target projection optical system 41 includes a fixation target light source 41a, a collimator lens 41b, a target plate 41c, a relay lens 41d, a mirror 41e, a dichroic mirror 41f, a dichroic mirror 41g, and an objective lens 41h. On the optical axis O11. The visual target plate 41c is provided with a visual target for fixing or clouding the eye E to be examined. The fixation target light source 41a, the collimator lens 41b, and the target plate 41c constitute a fixation target unit 41U, and are guided along the optical axis O11 by the fixation target moving mechanism 41D so as to guide the adjustment of the eye E to be fogged. Can be moved together. The dichroic mirror 41g and the objective lens 41h are disposed on a main optical axis O10 described later.

  In the fixation target projection optical system 41, visible light is emitted from the fixation target light source 41a, and the visible light is converted into a parallel light beam by the collimator lens 41b, and then the target plate 41c is illuminated from the back surface. In the fixation target projection optical system 41, the light beam transmitted through the target plate 41c is reflected by the mirror 41e after passing through the relay lens 41d, passes through the dichroic mirror 41f, and advances to the dichroic mirror 41g. Next, in the fixation target projection optical system 41, the target light beam is reflected by the dichroic mirror 41g onto the main optical axis O10 of the optometry unit 16A, and proceeds to the eye E through the objective lens 41h.

  In this way, the fixation target projection optical system 41 fixes the subject's line of sight by presenting the fixation target image projected onto the eye E as a fixation target to the subject. The fixation target projection optical system 41 also fixes the fixation target unit 41U from the state in which the fixation target unit 41U is moved to the far point of the eye E to be inspected as the fixation target, and further to the position where the focus is not achieved. By moving the mark unit 41U, the eye E is brought into a cloudy state. The fixation target unit 41U may be integrated using a backlit LCD (liquid crystal display) or the like.

  The observation optical system 42 has an illumination light source (not shown), and has a half mirror 42a, a relay lens 42b, an imaging lens 42c, and an image sensor 42d on the main optical axis O10. Further, the observation optical system 42 shares the objective lens 41h and the dichroic mirror 41g with the above-described fixation target projection optical system 41. The image sensor 42d is a two-dimensional solid-state image sensor, and in this embodiment, a complementary metal oxide semiconductor (CMOS) type or a charge coupled device (CCD) type image sensor is used.

  In the observation optical system 42, the anterior eye part (pupil, iris, etc.) of the eye E is illuminated with the illumination light beam emitted from the illumination light source, and the illumination light beam reflected by the anterior eye part is incident on the objective lens 41h. In the observation optical system 42, the reflected illumination light beam is imaged on the light receiving surface of the image sensor 42d by the imaging lens 42c via the objective lens 41h, the dichroic mirror 41g, the half mirror 42a, and the relay lens 42b. .

  The imaging element 42d captures the anterior segment image formed by the imaging lens 42c, and an imaging signal of the anterior segment obtained by the imaging is provided in a control unit 37 (described later) provided in the base 12. Output to. Thereby, the control part 37 can display the observation image of the anterior ocular segment on the touch panel monitor 20. Note that the illumination light source of the observation optical system 42 is turned off when the eye refractive power is measured after the alignment is completed.

  An eye refractive power measurement ring index projection optical system 43 includes an eye refractive power measurement light source 43a, a lens 43b, a conical prism 43c, a ring index plate 43d, a lens 43e, a bandpass filter 43f, and a pupil ring. 43g, a perforated prism 43h, and a rotary prism 43i. The ring-shaped index projection optical system 43 for measuring eye refractive power shares the dichroic mirror 41f, the dichroic mirror 41g, and the objective lens 41h with the aforementioned fixation target projection optical system 41.

  The eye refractive power measurement light source 43a and the pupil ring 43g are disposed at optically conjugate positions. In addition, the ring indicator plate 43d and the fundus oculi Ef of the eye E are disposed at optically conjugate positions. Furthermore, the eye refractive power measurement light source 43a, the lens 43b, the conical prism 43c, and the ring index plate 43d constitute an index unit 43U. The index unit 43U can be moved integrally along the optical axis O13 of the ring-shaped index projection optical system 43 for measuring eye refractive power by an index moving mechanism 43D.

  In the eye refractive power measurement ring index projection optical system 43, the light beam emitted from the eye refractive power measurement light source 43a is converted into a parallel light beam by the lens 43b and travels to the ring index plate 43d through the conical prism 43c. This parallel light beam passes through the ring-shaped pattern portion formed on the ring index plate 43d and becomes a pattern light beam as a ring-shaped index for eye refractive power measurement. Then, in the ring-shaped index projection optical system 43 for measuring eye refractive power, the pattern light flux is advanced to the perforated prism 43h through the lens 43e, the bandpass filter 43f, and the pupil ring 43g, and the reflecting surface of the perforated prism 43h. And is advanced to the dichroic mirror 41f through the rotary prism 43i.

  Next, in the ring-shaped index projection optical system 43 for measuring eye refractive power, the pattern light beam is sequentially reflected by the dichroic mirror 41f and the dichroic mirror 41g, so that the pattern light beam travels on the main optical axis O10. Then, in the ring-shaped index projection optical system 43 for measuring eye refractive power, the pattern light beam is imaged on the fundus oculi Ef (see FIG. 13) of the eye E by the objective lens 41h.

  In addition, corneal shape measurement ring-shaped index projection light sources 46A, 46B, and 46C are provided in front of the objective lens 41h. These corneal shape measurement ring-shaped index projection light sources 46A, 46B, and 46C are provided concentrically on the ring pattern 47 with the main optical axis O10 as the center, and are applied to the eye E (cornea Ec: see FIG. 13). On the other hand, a ring-shaped index for corneal shape measurement is projected. As a result, a corneal shape measurement ring-shaped index is formed on the cornea Ec. This corneal shape measurement ring-shaped index (its luminous flux) is reflected by the cornea Ec of the eye E to be imaged on the image sensor 42d by the observation optical system 42 described above. Thereby, on the touch panel type monitor 20, the image of the ring-shaped index for measuring the corneal shape can be superimposed and displayed on the observation image of the anterior segment.

  The light receiving optical system 44 includes a hole 44a of the perforated prism 43h, a mirror 44b, a lens 44c, and an image sensor 44d. The light receiving optical system 44 shares the objective lens 41h, the dichroic mirror 41g, and the dichroic mirror 41f with the above-described fixation target projection optical system 41, and the rotary prism 43i with the above-described ring index projection for measuring eye refractive power. Shared with the optical system 43.

  The image sensor 44d is a two-dimensional solid-state image sensor, and a CCD or CMOS type image sensor is used in this embodiment. The imaging element 44d is movable along the optical axis O14 of the light receiving optical system 44 in conjunction with the index unit 43U described above by the index moving mechanism 43D of the ring-shaped index projection optical system 43 for measuring eye refractive power. ing.

  In the light receiving optical system 44, the pattern reflected light beam guided to the fundus oculi Ef (see FIG. 13) by the ring-shaped index projection optical system 43 for measuring eye refractive power and reflected by the fundus oculi Ef is collected by the objective lens 41h. Then, the light is sequentially reflected by the dichroic mirror 41g and the dichroic mirror 41f and is advanced to the rotary prism 43i. In the light receiving optical system 44, the pattern reflected light beam travels through the rotary prism 43i to the hole 44a of the perforated prism 43h and passes through the hole 44a.

  Next, in the light receiving optical system 44, the pattern reflected light beam that has passed through the hole 44a is reflected by the mirror 44b, and this pattern reflected light beam, that is, the eye refractive power measurement ring-shaped index is reflected by the lens 44c on the light receiving surface of the image sensor 44d. Image on top. As a result, the imaging element 44 d outputs an imaging signal obtained by imaging the eye refractive power measurement ring-shaped index to the control unit 37. Thereby, the control part 37 displays the image of the ring-shaped index | index for eye refractive power measurement on the touchscreen monitor 20 as needed based on the imaging signal input from the image pick-up element 44d.

  The alignment light projection system 45 has a light emitting diode (LED) 45a, a pinhole 45b, and a lens 45c. Further, the alignment light projection system 45 shares the half mirror 42 a with the observation optical system 42, and shares the dichroic mirror 41 g and the objective lens 41 h with the fixation target projection optical system 41.

  In the alignment light projection system 45, the light beam from the LED 45a passes through the hole of the pinhole 45b to become an alignment index light beam, and this alignment index light beam is reflected by the half mirror 42a through the lens 45c, thereby being the main optical axis O10. Make progress. Then, in the alignment light projection system 45, the alignment index light beam is advanced to the objective lens 41h through the dichroic mirror 41g, and projected toward the cornea Ec of the eye E through the objective lens 41h. By reflecting the alignment index light beam on the cornea Ec of the eye E, the observation optical system 42 projects a bright spot image as an alignment index image on the image sensor 42d. When the bright spot image is located within an alignment mark formed by an optical system (not shown) and the working distance falls within a predetermined range, the alignment is completed. Thereby, the optometry unit 16A can be automatically aligned with respect to the eye E.

  The optometry unit 16A turns on the fixation target light source 41a, the illumination light source of the observation optical system 42, the eye refractive power measurement light source 43a, the LED 45a, and the corneal shape measurement ring-shaped index projection light sources 46A, 46B, and 46C. One or a plurality of drivers for performing control are provided, and a controller 37 is connected to the drivers. Therefore, in the optometry unit 16A, under the control of the control unit 37, the fixation target light source 41a, the illumination light source of the observation optical system 42, the eye refractive power measurement light source 43a, the LED 45a, and the corneal shape measurement ring shape The index projection light sources 46A, 46B, and 46C are appropriately turned on.

  In the optometry unit 16A, as described above, the fixation target unit 41U is integrally moved along the optical axis O11 by the fixation target moving mechanism 41D under the control of the control unit 37. Further, in the optometry unit 16A, the index moving mechanism 43D moves the index unit 43U integrally along the optical axis O13 and moves the image pickup device 44d along the optical axis O14. Furthermore, in the optometry unit 16A, the imaging signals output from the imaging element 42d and the imaging element 44d are output to the control unit 37. These moving mechanisms 41D and 43D may be individually driven to individually move the fixation target unit 41U, the index unit 43U, and the imaging device 44d. However, the fixation target unit 41U, the index unit 43U, and the imaging device 44d You may be comprised so that it may move integrally.

  Next, a schematic operation in the case of performing a KR examination of the shape of the cornea Ec (see FIG. 13) of the eye E and the eye refractive power of the eye E using the optometry unit 16A having the above configuration will be described. The following operation in the optometry unit 16A is executed under the control of the control unit 37.

  The optometry unit 16A turns on the illumination light source of the observation optical system 42, and outputs an imaging signal obtained by imaging of the imaging element 42d to the control unit 37. An image of the cornea Ec (see FIG. 13) is displayed. Then, the examiner operates the operation screen or the operation lever 19 displayed on the touch panel monitor 20 so that the pupil of the eye E is positioned within the screen of the touch panel monitor 20. Thereby, the rotation unit 15 is moved in the XYZ axis directions by the unit moving unit 33, and the schematic alignment of the optometry unit 16A with respect to the eye E is performed. The approximate alignment may be automatically performed by the unit moving unit 33 under the control of the control unit 37.

  Then, the LED 45a is turned on, and an alignment luminescent spot image is picked up by the image pickup element 42d together with the anterior segment image.

  Next, the control unit 37 starts alignment detection based on the alignment light projection system 45 and the working distance detection optical system (not shown). Specifically, the unit moving unit 33 is driven under the control of the control unit 37 so that the bright spot image as the alignment index image is located in the alignment mark and the working distance is within a predetermined range. Then, the rotation unit 15 is appropriately moved in the three axis directions (XYZ axis directions) with respect to the base 12 to perform auto alignment (automatic alignment adjustment). Thereby, the auto-alignment of the optometry unit 16A with respect to the apex of the cornea Ec of the eye E is completed.

  After completion of the auto alignment, the corneal shape measurement ring-shaped index projection light sources 46A, 46B, 46C of the ring-shaped index projection optical system 43 for eye refractive power measurement are turned on to project the corneal shape measurement ring-shaped index onto the cornea Ec. At the same time, the image pickup signal picked up by the image pickup element 42d is output to the control unit 37. Thereby, the control unit 37 causes the touch panel monitor 20 to display an image based on the imaging signal from the imaging element 42d as necessary, and based on this image, the corneal shape measurement ring shape projected onto the cornea Ec. The shape of the cornea Ec is analyzed (measured) from the index image. Since the details of the measurement of the shape of the cornea Ec are known, the description thereof is omitted.

  Further, the optometry unit 16A turns on the eye refractive power measurement light source 43a, projects the eye refractive power measurement ring-shaped index onto the fundus oculi Ef (see FIG. 13), and captures the imaging signal imaged by the imaging device 44d. Output to the control unit 37. Accordingly, the control unit 37 analyzes (measures) the spherical power, the cylindrical power, and the shaft angle as the eye refractive power from the index unit 43U and the moving amount of the image sensor 44d and the image of the image sensor 44d by a known method.

  Thus, the optometry unit 16A and the control unit 37 perform measurement of the corneal shape and measurement of eye refractive power (optical characteristics).

  Note that the inspection optical system configuration of the optometry unit 16A, the auto-alignment method, the corneal shape analysis method, and the eye refractive power analysis method are not limited to the above-described contents, and are adopted in a known auto-refractometer. Configurations and methods may be employed.

<Configuration of optometry unit for SP examination>
FIG. 12 is a schematic diagram of the configuration of the optometry unit 16B that performs the SP test, in particular, the SP optical system for SP test provided in the optometry unit 16B.

  As shown in FIG. 12, the optometry unit 16B includes an anterior ocular segment observation optical system 51, an imaging illumination optical system 52, an imaging optical system 53, and a Z alignment projection as an inspection optical system for SP inspection. A system 54, a Z alignment detection system 55, an XY alignment projection system 56, a fixation target projection system 57, and an XY alignment detection system 58 are included.

  On the main optical axis O21 (inspection optical axis) of the anterior ocular segment observation optical system 51, a half mirror 61, an objective lens 62, and an imaging element 63 are provided in this order from the eye E side. As the image sensor 63, a CCD type or CMOS type image sensor is used. The imaging element 63 is arranged at a position conjugate with a virtual image generated by reflecting parallel light projected on the cornea Ec having an average curvature by the XY alignment projection system 56 with respect to the objective lens 62. Yes. The objective lens 62 and the image sensor 63 also constitute an XY alignment detection system 58.

  The photographing illumination optical system 52 has a light projection optical axis O22 that passes through the corneal apex Ep. The projection optical axis O22 is inclined by θ1 (= approximately 30 degrees) with respect to the main optical axis O21. Here, θ1 may be changed within a range of 20 ° ≦ θ1 ≦ 40 °.

  On the light projecting optical axis O22 of the photographing illumination optical system 52, the photographing illumination light source 65, the condenser lens 66, the slit plate 67, in order from the position away from the subject eye E toward the subject eye E, A dichroic mirror 68 and an objective lens 69 are provided.

  As the photographing illumination light source 65, an LED that emits visible light, for example, green light, is used. The slit plate 67 has a slit hole, and emits visible light incident from the photographing illumination light source 65 as slit light. The slit plate 67 and the cornea Ec are in a conjugate position with respect to the objective lens 69. The width of the slit formed by the slit plate 67 is limited to a width capable of separating the reflected light reflected from the surface of the cornea Ec and the reflected light from the corneal endothelium.

  The Z alignment projection system 54 includes a light source 71, a condenser lens 72, and a slit plate 73 on the optical axis O <b> 23 branched by the dichroic mirror 68. As the light source 71, an LED that emits infrared light is used. The slit plate 73 and the cornea Ec are in a conjugate position with respect to the objective lens 69. The dichroic mirror 68 transmits green light and reflects infrared light.

  The photographing optical system 53 has a photographing optical axis O24 that is symmetric with respect to the light projecting optical axis O22 with respect to the main optical axis O21. The photographing optical axis O24 passes through the corneal apex Ep. Accordingly, the projection optical axis O22 and the photographing optical axis O24 are in the relationship between the incident optical axis and the reflected optical axis with respect to the corneal apex Ep, and the photographing optical axis O24 is inclined by θ1 (= 30 degrees) with respect to the main optical axis O21. doing. Actually, the light projecting optical axis O22 and the photographing optical axis O24 are configured to intersect at a position corresponding to the corneal endothelium.

  On the imaging optical axis O24, an objective lens 75, a dichroic mirror 76, and a mirror 77 are provided in order from the eye E side. The photographing optical axis O24 is deflected by a mirror 77. A relay lens 78 and a mirror 79 are provided on the deflected photographic optical axis O 24, and the light beam reflected by the mirror 79 forms an image on the image sensor 80.

  The image sensor 80 is a CCD or CMOS type image sensor, and is inclined by θ2 with respect to the photographing optical axis O24. The angle θ2 is 0 <θ2 <θ1. Further, the inclination direction of the image sensor 80 is the same as the inclination direction of the corneal endothelium surface to be imaged with respect to the imaging optical axis O24. The allowable installation angle of θ2 is determined based on the light receiving sensitivity of the image sensor 80, the resolution characteristics of the angle optical system, and the like. Note that the cornea Ec and the image sensor 80 are in a conjugate position with respect to the objective lens 75.

  On the optical axis O25 of the light reflected by the dichroic mirror 76, a relay lens 84 and an image sensor 85 are provided. The imaging element 85 and the cornea Ec are in a conjugate position with respect to the objective lens 75. The dichroic mirror 76 has an optical characteristic of reflecting infrared light and transmitting green light. For this reason, the infrared light emitted from the light source 71 and reflected by the cornea Ec is guided to the image sensor 85. These dichroic mirror 76, relay lens 84, and image sensor 85 constitute a Z alignment detection system 55.

  Next, the XY alignment projection system 56 will be described. On the optical axis O26 of the light branched by the half mirror 61, a collimator lens 87 and a dichroic mirror 88 are provided. Further, a relay lens 90 and an XY alignment light source 91 are provided on the optical axis of the reflected light reflected by the dichroic mirror 88. The XY alignment light source 91 emits infrared light. The dichroic mirror 88 has a characteristic of reflecting infrared light and transmitting visible light.

  A fixation target 93 is provided on the passing optical axis of the dichroic mirror 88. The fixation target 93 is, for example, a graphic pattern illuminated with visible light or a light source that emits visible light. The fixation target 93 is projected as infinite light so that the normal eye E can be fixed by the collimator lens 87. The fixation target 93 may be projected at a finite distance so that the myopic eye can be fixed. The half mirror 61, the collimator lens 87, the fixation target 93, and the like constitute a fixation target projection system 57.

  Imaging signals obtained by imaging each of the imaging element 63 and the imaging element 85 are output to the control unit 37 in the base 12. The control unit 37 detects the alignment of the optometry unit 16B based on the image pickup signals of the image pickup device 63 and the image pickup device 85, and controls the unit moving unit 33 based on the alignment detection result so that the rotation unit 15 is moved in three axial directions. By appropriately moving, auto-alignment of the optometry unit 16B with respect to the eye E is performed. In addition, the control unit 37 analyzes the captured image of the corneal endothelial cell based on the imaging signal obtained by the imaging of the imaging element 80, and indicates an index (cornea) indicating the soundness of the corneal endothelial cell as a test result of the corneal endothelial cell. Determine the size, shape, density, etc. of the endothelial cells).

  Next, a schematic operation when performing the SP examination of the cornea Ec of the eye E using the optometry unit 16B having the above configuration will be described.

  In the optometry unit 16 </ b> B, the fixation target 93 is projected onto the eye E by the fixation target projection system 57, so that the line of sight of the subject is fixed on the fixation target 93. Further, an image of the anterior segment of the eye E is captured by the imaging element 63 of the anterior segment observation optical system 51, and the observed image of the anterior segment is displayed on the touch panel monitor 20. Thereby, when the observation image of the anterior eye part is not displayed on the touch panel monitor 20, the examiner can perform the position adjustment operation of the optometry unit 16B with respect to the eye E.

  In the optometry unit 16B, point-shaped detection light is emitted from the light source 91 for XY alignment, the detection light reflected by the cornea Ec is imaged by the image sensor 63, and the image signal captured by the image sensor 63 is the control unit. 37 is output. Then, the control unit 37 obtains the deviation between the light receiving position of the detection light on the image sensor 63 and the reference position based on the image signal from the image sensor 63, and then controls the unit moving unit 33 to XY alignment is executed by displacing the rotary unit 15 in the XY-axis direction so that the deviation is within a predetermined range.

  Next, in the optometry unit 16 </ b> B, the light source 71 is turned on, the reflected light from the endothelium of the cornea Ec is imaged by the imaging element 85, and the imaging signal captured by the imaging element 85 is output to the control unit 37. Then, the control unit 37 obtains the deviation between the light receiving position of the reflected light on the image sensor 85 and the reference position based on the image signal of the image sensor 85, and then controls the unit moving unit 33 so that the above deviation is detected. Z alignment is performed by displacing the rotary unit 15 in the Z-axis direction so as to be within a predetermined range. Since the detection light emitted from the Z alignment projection system 54 has a slit shape, the image sensor 85 may be a line sensor extending in the width direction of the slit light. Thereby, the auto-alignment in the triaxial direction is completed.

  After completion of the auto alignment, the photographing illumination light source 65 is turned on, and the cornea Ec is irradiated with the illumination light that has become slit light through the slit plate 67.

  By making the slit light obliquely enter the cornea Ec, the reflected light reflected by the surface of the cornea Ec and the reflected light reflected by the corneal endothelium are separated. The reflected light reflected by the corneal endothelium is incident on the image sensor 80 via the photographing optical axis O <b> 24, and an image signal captured by the image sensor 80 is output to the control unit 37. The control unit 37 causes the touch panel monitor 20 to display an observation image based on the imaging signal from the imaging element 80, and analyzes the image, thereby diagnosing the corneal endothelial cell health (the size of the corneal endothelial cell). , Shape, density, etc.) are determined as the corneal endothelial cell test results. Note that a specific analysis method is a known technique (see, for example, Japanese Patent Application Laid-Open No. 2014-140484), and a detailed description thereof will be omitted here.

  The examination optical system configuration, the auto-alignment method, and the corneal endothelial cell analysis method of the optometry unit 16B are not limited to the above contents, and are the configurations and methods employed in known corneal endothelial cell examination apparatuses. May be adopted.

<Configuration of optometry unit for CT examination>
13 is a schematic top view of the inspection optical system of the optometry unit 16C that performs CT examination as viewed from above (Y-axis direction). FIG. 14 is a side view (X-axis direction) of the inspection optical system of the optometry unit 16C. It is the schematic side view seen from the side.

  As shown in FIGS. 13 and 14, the optometry unit 16C includes an anterior ocular segment observation optical system 100, an XY alignment index projection optical system 101, a fixation target projection optical system 102, an applanation detection optical system 103, A Z alignment index projection optical system 104 and a Z alignment detection optical system 105 are provided.

  The anterior ocular segment observation optical system 100 is provided to observe the anterior ocular segment of the eye E and to perform XY alignment in the XY axis direction of the optometry unit 16C with respect to the eye E. The anterior ocular segment observation optical system 100 is provided with an anterior ocular segment illumination light source 100a (see FIG. 13). Further, on the optical axis O31 of the anterior ocular segment observation optical system 100, an airflow blowing nozzle 100b, an anterior ocular window glass 100c (see FIG. 14), a chamber window glass 100d, a half mirror 100e, and a half mirror 100g. An objective lens 100f and an image sensor 100i.

  The anterior segment illumination light source 100a is arranged around the anterior segment window glass 100c (see FIG. 13), and a plurality of anterior segment illumination light sources 100a are provided to directly illuminate the anterior segment of the eye E to be examined. The airflow blowing nozzle 100b is a nozzle for blowing an airflow to the anterior eye portion of the eye E, and is connected to an air compression chamber 107a (see FIG. 14) of the airflow blowing mechanism 107 described later.

  The image sensor 100 i is a CCD type or CMOS type image sensor. The image sensor 100 i captures the image light of the anterior segment incident on the light receiving surface to generate an image signal, and the generated image signal is used as a control unit 37 in the base 12. To output. The control unit 37 generates an observation image of the anterior segment of the eye E based on the imaging signal input from the imaging element 100 i and displays the observation image on the touch panel monitor 20 as appropriate.

  In the anterior ocular segment observation optical system 100, an image of the anterior ocular segment of the subject eye E is captured by the imaging element 100i while the anterior segment of the subject eye E is illuminated by the anterior segment illumination light source 100a (see FIG. 13). To generate an imaging signal. An image of the anterior eye part of the eye E passes through the outside of the airflow blowing nozzle 100b and passes through the anterior eye glass window 100c (including a glass plate 107b described later), a chamber window glass 100d, a half mirror 100g, and a half mirror 100e. And imaged on the light receiving surface of the image sensor 100i by the objective lens 100f. The image sensor 100i (anterior eye observation optical system 100) outputs an imaging signal generated by capturing an image of the anterior eye segment to the control unit 37 (see FIG. 13). The control unit 37 causes the touch panel monitor 20 to display an observation image of the anterior segment of the eye E based on the imaging signal input from the imaging element 100i.

  In the anterior ocular segment observation optical system 100, the reflected light from the cornea Ec of the XY alignment index light projected onto the eye E by an XY alignment index projection optical system 101 described later is guided to the light receiving surface of the image sensor 100i. Specifically, the reflected light passes through the airflow spray nozzle 100b, the chamber window glass 100d, the half mirror 100g, and the half mirror 100e, and is imaged on the light receiving surface of the image sensor 100i by the objective lens 100f. Thereby, a bright spot image is formed on the light receiving surface of the image sensor 100i at a position corresponding to the positional relationship between the optometry unit 16C and the cornea Ec in the XY-axis direction. As a result, the image sensor 100 i outputs an imaging signal obtained by capturing the bright spot image formed on the light receiving surface to the control unit 37.

  Then, the control unit 37 generates a bright spot image based on the imaging signal input from the image sensor 100i, and causes the touch panel monitor 20 to display the bright spot image on the aforementioned anterior eye observation image. As a result, the anterior eye part image of the eye E and the bright spot image of the XY alignment index light are superimposed and displayed on the touch panel monitor 20. The touch panel monitor 20 also superimposes alignment assist marks generated by image generation means (not shown).

  The XY alignment index projection optical system 101 projects the index light onto the cornea Ec of the eye E from the front. The index light is used for adjusting the position of the optometry unit 16C with respect to the anterior segment (cornea Ec) of the eye E viewed in the XY axis direction, so-called XY alignment. The index light is used for detecting the applanation state of the cornea Ec of the eye E.

  The XY alignment index projection optical system 101 includes an XY alignment light source 101a, a condenser lens 101b, an aperture stop 101c, a pinhole plate 101d, a dichroic mirror 101e, and a collimator lens 101f (see FIG. 14). . Further, the XY alignment index projection optical system 101 shares the half mirror 100e with the above-described anterior ocular segment observation optical system 100.

  The XY alignment light source 101a emits infrared light. The collimator lens 101f is disposed on the optical path of the XY alignment index projection optical system 101 so that the focal point coincides with the pinhole plate 101d. In this XY alignment index projection optical system 101, infrared light emitted from the XY alignment light source 101a passes through the aperture stop 101c while being focused by the condenser lens 101b, and is guided to the hole of the pinhole plate 101d. It is burned.

  In the XY alignment index projection optical system 101, the infrared light that has passed through the hole of the pinhole plate 101d is reflected by the dichroic mirror 101e and guided to the collimator lens 101f, and the infrared light is parallelized by the collimator lens 101f. After forming the light beam, it is emitted to the half mirror 100e.

  Next, in the XY alignment index projection optical system 101, the parallel light beam of infrared light is reflected by the half mirror 100e, so that the parallel light beam travels on the optical axis O31 of the anterior ocular segment observation optical system 100. Thereby, the parallel luminous flux of the infrared light passes through the half mirror 100g and the chamber window glass 100d, and then enters the eye E as XY alignment index light by passing through the inside of the airflow blowing nozzle 100b.

  Although not shown, the XY alignment index light incident on the eye E is reflected on the surface of the cornea Ec to form a bright spot image. The aperture stop 101c is provided at a position conjugate with the corneal apex Ep of the cornea Ec with respect to the collimator lens 101f.

  The fixation target projection optical system 102 projects the fixation target onto the eye E to be examined. This fixation target projection optical system 102 includes a fixation target light source 102a and a pinhole plate 102b (see FIG. 14). Further, the fixation target projection optical system 102 shares the dichroic mirror 101e and the collimator lens 101f with the XY alignment index projection optical system 101, and also shares the half mirror 100e with the anterior ocular segment observation optical system 100.

  The fixation target light source 102a emits visible light as fixation target light. In this fixation target projection optical system 102, the fixation target light emitted from the fixation target light source 102a is guided to the hole portion of the pinhole plate 102b, and is transmitted through the hole portion of the pinhole plate 102b and the dichroic mirror 101e. Then, the light is emitted to the collimator lens 101f. Then, the fixation target light is converted into substantially parallel light by the collimator lens 101f, emitted toward the half mirror 100e, and reflected by the half mirror 100e so as to travel on the optical axis O31 of the anterior ocular segment observation optical system 100. proceed. As a result, the fixation target light passes through the half mirror 100g and the chamber window glass 100d, and then passes through the airflow spray nozzle 100b to reach the eye E to be examined. The fixation target projection optical system 102 fixes the subject's line of sight by causing the subject to gaze at the fixation target projected onto the eye E as a fixation target.

  The applanation detection optical system 103 (see FIG. 14) receives reflected light from the cornea Ec of the XY alignment index light projected onto the eye E by the XY alignment index projection optical system 101, and the pressure on the surface of the cornea Ec. Detect flat state. The applanation detection optical system 103 includes a lens 103a, a pinhole plate 103b, and a light receiving sensor 103c, and shares a half mirror 100g with the anterior ocular segment observation optical system 100 described above.

  When the surface of the cornea Ec is flat, the lens 103a collects the reflected light of the XY alignment index light by the cornea Ec at the opening of the pinhole plate 103b. The opening of the pinhole plate 103b is provided at the focal position of the lens 103a.

  The light receiving sensor 103c is, for example, a photodiode that outputs a signal corresponding to the amount of light received. The light receiving sensor 103 c outputs a light receiving signal corresponding to the received light amount to the control unit 37 in the base 12.

  In the applanation detection optical system 103, the reflected light of the XY alignment index light reflected by the surface of the cornea Ec (the cornea surface) of the eye E passes through the air blowing nozzle 100b and passes through the chamber window glass 100d. It reaches the half mirror 100g. In the applanation detection optical system 103, a part of the reflected light is reflected by the half mirror 100g and travels to the lens 103a, is converged by the lens 103a, and then travels to the pinhole plate 103b.

  Here, in the eye E, the surface of the cornea Ec is deformed and gradually flattened by the airflow blowing mechanism 107 blowing the airflow from the airflow blowing nozzle 100b toward the cornea Ec. At that time, in the applanation detection optical system 103, when the surface of the cornea Ec becomes flat, the entire reflected light that has traveled to the applanation detection optical system 103 reaches the light receiving sensor 103c through the pinhole plate 103b. In other states, the reflected light reaches the light receiving sensor 103c while being partially blocked by the pinhole plate 103b. For this reason, the applanation detection optical system 103 can detect that the surface of the cornea Ec is flat (applanation) by detecting the time when the amount of light received by the light receiving sensor 103c becomes maximum. . Thereby, the applanation detection optical system 103 can detect the applanation state of the cornea Ec deformed by the spraying of the fluid.

  The Z alignment index projection optical system 104 (see FIG. 13) projects the alignment index light (alignment index parallel light beam) in the Z-axis direction obliquely onto the cornea Ec of the eye E. The Z alignment index projection optical system 104 includes a Z alignment light source 104a, a condenser lens 104b, an aperture stop 104c, a pinhole plate 104d, and a projection lens 104e on the optical axis O32.

  The Z alignment light source 104a emits infrared light (for example, wavelength 860 nm). The aperture stop 104c is provided at a position conjugate with the corneal apex Ep with respect to the projection lens 104e. The projection lens 104e is disposed so that the focal point coincides with the hole of the pinhole plate 104d.

  In the Z alignment index projection optical system 104, the infrared light emitted from the Z alignment light source 104a passes through the aperture stop 104c while being condensed by the condenser lens 104b and proceeds to the pinhole plate 104d. In the Z alignment index projection optical system 104, the infrared light that has passed through the hole of the pinhole plate 104d is advanced to the projection lens 104e, and is advanced to the cornea Ec as parallel light by the projection lens 104e. The parallel light of the infrared light enters the eye E as Z alignment index light, is reflected by the cornea Ec, and forms a bright spot image located inside the eye E.

  The Z alignment detection optical system 105 receives the reflected light of the Z alignment index light from the cornea Ec and detects the positional relationship between the optometry unit 16C and the cornea Ec in the Z-axis direction. The Z alignment detection optical system 105 includes an imaging lens 105a, a cylindrical lens 105b, and a light receiving sensor 105c on the optical axis O33.

  As the cylindrical lens 105b, a lens having power in the Y-axis direction is used. The light receiving sensor 105c is a sensor capable of detecting the light receiving position on the light receiving surface, and for example, a line sensor or PSD (Position Sensitive Detector) is used. The light reception signal of the light reception sensor 105 c is output to the control unit 37 in the base 12.

  In such a Z alignment detection optical system 105, the alignment index light is projected by the Z alignment index projection optical system 104, so that the reflected light of the alignment index light reflected by the surface of the cornea Ec is directed to the imaging lens 105a. proceed. In the Z alignment detection optical system 105, the reflected light of the alignment index light is converged by the imaging lens 105a and then travels to the cylindrical lens 105b, and the reflected light is condensed in the Y-axis direction by the cylindrical lens 105b. A bright spot image is formed on the light receiving sensor 105c.

  In the XZ plane, the light receiving sensor 105c is in a conjugate relationship with the above-described bright spot image formed inward of the eye E by the Z alignment index projection optical system 104 with respect to the imaging lens 105a. In the YZ plane, the light receiving sensor 105c is in a positional relationship conjugate with the corneal apex Ep with respect to the imaging lens 105a and the cylindrical lens 105b. That is, since the light receiving sensor 105c is in a conjugate relationship with the aperture stop 104c, even if the cornea Ec is displaced in the Y-axis direction, the reflected light on the surface of the cornea Ec efficiently enters the light receiving sensor 105c. The light receiving sensor 105 c outputs a signal based on light reception of the formed bright spot image to the control unit 37 in the base 12.

  The airflow blowing mechanism 107 (see FIG. 14) includes an air compression chamber 107a and an air compression drive unit 107d. Although not shown, the air compression drive unit 107d has a piston that can move in the air compression chamber 107a and a drive unit that moves the piston. The air compression drive unit 107d is driven under the control of the control unit 37 to compress the air in the air compression chamber 107a.

  Inside the air compression chamber 107a, an airflow blowing nozzle 100b is attached via a transparent glass plate 107b (see FIG. 14). In the air compression chamber 107a, a chamber window glass 100d is provided at a position facing the airflow blowing nozzle 100b. Further, the air compression chamber 107a is provided with a pressure sensor 107c for detecting the internal pressure. The pressure sensor 107 c is connected to the control unit 37 and outputs a signal corresponding to the detected pressure to the control unit 37.

  In such an airflow spray mechanism 107, under the control of the control unit 37, the air compression drive unit 107d compresses the air in the air compression chamber 107a, so that the airflow spray nozzle 100b is directed toward the cornea Ec of the eye E to be examined. Can blow airflow. Further, in the airflow blowing mechanism 107, the pressure when the airflow is blown from the airflow blowing nozzle 100b can be acquired by detecting the pressure in the air compression chamber 107a by the pressure sensor 107c.

  The optometry unit 16C includes one or more drivers (drive mechanisms) for controlling lighting of the anterior segment illumination light source 100a, the XY alignment light source 101a, the fixation target light source 102a, and the Z alignment light source 104a. And a control unit 37 is connected to the driver. Therefore, in the optometry unit 16C, the anterior segment illumination light source 100a, the XY alignment light source 101a, the fixation target light source 102a, and the Z alignment light source 104a are appropriately turned on under the control of the control unit 37. . Further, in the optometry unit 16C, as described above, under the control of the control unit 37, the imaging signal imaged by the imaging element 100i is output to the control unit 37. The control unit 37 performs an image generation process based on the imaging signal input from the imaging element 100i, and causes the touch panel monitor 20 to appropriately display the generated image.

  Next, a schematic operation when examining the intraocular pressure of the cornea Ec of the eye E using the above-described optometry unit 16C (CT examination) will be described. The following operation in the optometry unit 16C is executed under the control of the control unit 37.

  In the optometry unit 16C, the anterior segment illumination light source 100a of the anterior segment observation optical system 100 is turned on to illuminate the anterior segment of the eye E and to be imaged by the image sensor 100i. The image sensor 100 i outputs an image signal to the control unit 37. Thereby, the control part 37 displays the observation image of the anterior ocular segment on the touch panel monitor 20.

  In the optometry unit 16C, the fixation target light source 102a of the fixation target projection optical system 102 is turned on so that the fixation target is projected onto the eye E and the eye E is fixed (that is, the eye E is fixed). Fix the examiner ’s line of sight). Further, the optometry unit 16C projects the XY alignment index light onto the cornea Ec by turning on the XY alignment light source 101a of the XY alignment index projection optical system 101.

  In the optometry unit 16C, the reflected light of the XY alignment index light reflected by the cornea Ec is transmitted to the anterior eye by the imaging element 100i of the anterior segment observation optical system 100 and the light receiving sensor 103c of the applanation detection optical system 103. Light is received together with the partial image. The image sensor 100 i outputs an image signal to the control unit 37. As a result, the control unit 37 causes the touch panel monitor 20 to display an alignment auxiliary mark (not shown) superimposed on the observed image of the anterior segment where the bright spot image of the XY alignment index light is reflected. The light receiving sensor 103 c receives the reflected light and outputs a light receiving signal to the control unit 37.

  Further, in the optometry unit 16C, the Z alignment light source 104a of the Z alignment index projection optical system 104 is turned on to project a parallel light beam for alignment in the Z-axis direction onto the cornea Ec. In the optometry unit 16 </ b> C, the reflected light reflected by the cornea Ec is received by the light receiving sensor 105 c of the Z alignment detection optical system 105. The light receiving sensor 105 c receives the reflected light and outputs a light receiving signal to the control unit 37.

  As described above, when the anterior eye part image of the eye E, the luminescent spot image of the XY alignment index light, and the alignment auxiliary mark are displayed on the touch panel type monitor 20 by the control unit 37, the examiner displays the touch panel type monitor. By operating the operation unit or the operation lever 19 displayed on the touch panel type monitor 20 while looking at 20, the rotating unit 15 is moved up and down and left and right so that the bright spot image is reflected in the screen of the touch panel type monitor 20. Alignment (rough alignment) is performed. The approximate alignment may be automatically performed under the control of the control unit 37.

  Further, the control unit 37 calculates the positional relationship between the rotation unit 15 and the cornea Ec in the XY directions from the imaging signal of the imaging element 100i of the anterior ocular segment observation optical system 100, and the calculation result and the Z alignment detection. Based on the light reception signal obtained from the light reception sensor 105c of the optical system 105, the positional relationship between the rotation unit 15 and the cornea Ec in the Z-axis direction is calculated. Then, the control unit 37 drives the unit moving unit 33 based on the calculation result of each positional relationship, and appropriately moves the rotating unit 15 in the triaxial direction with respect to the base 12 to perform auto alignment. The Z alignment state may be displayed on the touch panel monitor 20 using a bar meter or the like, and the examiner may manually perform the Z alignment based on this display.

  When auto-alignment is completed, the control unit 37 operates the airflow blowing mechanism 107 to blow airflow from the airflow blowing nozzle 100b toward the cornea Ec of the eye E to be examined. As a result, the surface of the cornea Ec of the eye E is deformed and gradually becomes flat. In the process of gradually flattening the cornea Ec, the amount of light received by the light receiving sensor 103c of the applanation detection optical system 103 becomes maximum when the surface of the cornea Ec is made flat. For this reason, the control part 37 judges that the surface of the cornea Ec was made into a plane based on the change of the magnitude | size of the light reception signal obtained from the light reception sensor 103c of the optometry unit 16C. That is, the applanation state of the cornea Ec can be detected. The trigger for starting the blowing of airflow may be implemented by pressing a measurement button (not shown) at the top of the operation lever 19 after the examiner confirms the alignment state on the touch panel monitor 20.

  And the control part 37 calculates | requires the intraocular pressure of the cornea Ec (calculates an intraocular pressure value) based on the output (pressure of the sprayed airflow) from the pressure sensor 107c in the timing when the cornea Ec was applanated, The calculation result is displayed on the touch panel monitor 20. In addition, the control part 37 is the intraocular pressure of the cornea Ec based on the time from the time of starting the blowing of the airflow by the airflow blowing nozzle 100b (airflow blowing mechanism 107) until the time of detecting that the surface of the cornea Ec is flat. You may ask for.

  Note that the examination optical system configuration, the auto-alignment method, and the intraocular pressure (intraocular pressure value) calculation method of the optometry unit 16C are not limited to the above, and are adopted in a known non-contact type tonometry apparatus. The configurations and methods described above may be employed.

<Configuration of control unit>
FIG. 15 is a block diagram showing an electrical configuration of the control unit 37 provided in the base 12. As shown in FIG. 15, the control unit 37 is an arithmetic circuit including various arithmetic units including a CPU (Central Processing Unit) or an FPGA (field-programmable gate array), a storage unit, and the like. The operation of each part of the apparatus 10 is comprehensively controlled. The control unit 37 executes a control program read from a storage unit or the like (not shown), so that the unit identification unit 110, the order determination unit 111, the rotation drive control unit 112, the signal acquisition unit 113, and the alignment detection Unit 114, unit movement control unit 115, and analysis unit 116.

  The unit identifying unit 110 identifies the types of a plurality of types of optometry units 16 (optometry units 16A, 16B, 16C, etc.) that are detachably and interchangeably held in the unit holding portions 15a of the rotating unit 15. For example, the unit identification unit 110 individually accesses the optometry unit 16 held in each unit holding unit 15a via the interfaces 35a, 35b and the like. And the unit identification part 110 acquires the identification information stored in the memory | storage part (not shown) in each optometry unit 16, By this, the kind of optometry unit 16 each hold | maintained at each unit holding part 15a is obtained. Identify. Then, the unit identification unit 110 outputs the identification result of the type of the optometry unit 16 held for each unit holding unit 15a to the rotation drive control unit 112.

  Note that the method of identifying the type of the optometry unit 16 is not limited to the above method, and various methods can be selected. For example, the shape or structure of each optometry unit 16 is made different, and a detection unit (not shown) that detects a difference in the shape or structure of the optometry unit 16 is provided in each unit holding unit 15a. And the unit identification part 110 can identify the kind of optometry unit 16 currently hold | maintained for every unit holding | maintenance part 15a by acquiring the detection result of each detection part.

  For example, when the examiner inputs the type of the optometry unit 16 held in each unit holding unit 15a using the touch panel type monitor 20 or the like, the unit identification unit 110 displays the input result of the touch panel type monitor 20 or the like. Based on this, the type of the optometry unit 16 held for each unit holding unit 15a can be identified.

  The order determination unit 111 performs a first examination order, which is a movement order for moving the three types of optometry units 16 (optometry units 16A, 16B, 16C, etc.) held for each unit holding unit 15a to the above-described facing positions. decide. In addition, the order determination unit 111 moves the first eye (one of the right eye and the left eye) to be inspected first among the two eyes of the eye E and the second eye to be inspected later. A second examination order indicating (the other of the right eye and the left eye) is determined for each of the three types of optometry units 16 described above. That is, the order determining unit 111 functions as a first order determining unit and a second order determining unit of the present invention.

  FIG. 16 is an explanatory diagram for explaining the determination of the first inspection order and the second inspection order by the order determination unit 111. As shown in FIG. 16, the control unit 37 (order determination unit 111) determines the first inspection order and the first inspection order for the examiner based on the identification result of the unit identification unit 110 described above when the composite inspection apparatus 10 is activated. 2. An inspection order input screen 117 for prompting input of the inspection order is displayed on the touch panel monitor 20.

  On the examination order input screen 117, an examination type column 118 is displayed for each type of optometry unit 16 held for each unit holding unit 15a. For example, when the optometry units 16A, 16B, and 16C are held in the unit holding units 15a, the examination order input screen 117 includes three types of examination types 118 corresponding to the KR examination, the SR examination, and the CT examination, respectively. Is displayed. Each examination type column 118 is divided into a right eye examination column (indicated by “R” in the figure) indicating a right eye examination and a left eye examination column (indicated by “L” in the figure) indicating a left eye examination. Has been.

  The examination order input screen 117 receives an input from the examiner for a designation operation (touch operation) for simultaneously designating the order of each examination type field 118 and the order of the right eye examination field and the left eye examination field for each examination type field 118. Accept. Thereby, the order determination unit 111 can determine the first inspection order and the second inspection order based on the input result of the touch operation on the inspection order input screen 117. In addition, the necessity of the test | inspection about a test item and each right-and-left eye can also be designated for every subject.

  For example, when touch operations are performed in the order indicated by arrows in the figure, the order determining unit 111 determines the first inspection order in the order of KR inspection, SP inspection, and CT inspection. Further, the order determination unit 111 determines the second examination order in the order of the left eye examination and the right eye examination for the first KR examination, and in the order of the right eye examination and the left eye examination for the next SP examination. The last CT examination is decided in the order of the left eye examination and the right eye examination. For example, the reason for starting from the right eye examination in the SP examination after performing the right eye examination in the KR examination is to reduce the movement amount of the rotary unit 15 between the KR examination and the SP examination.

  Note that instead of performing a touch operation on the inspection order input screen 117, an input operation of the first inspection order and the second inspection order may be performed using the operation lever 19.

  FIG. 17 is an explanatory diagram for explaining another embodiment of the determination of the first inspection order by the order determination unit 111. As shown in FIG. 17, the order determination unit 111 is based on the holding unit order in which the unit holding units 15 a of the rotating unit 15 are previously ordered, as indicated by parenthesized numbers (1) to (3) in the drawing. The first inspection order is determined. That is, the order determination unit 111 determines the first inspection order according to the holding unit order of the unit holding unit 15a that holds each optometry unit 16, regardless of the type of examination.

  Specifically, in the example illustrated in FIG. 17, the order determination unit 111 sets the optometry unit 16 </ b> C held in the unit holding unit 15 a in the holding unit order (1) and the unit holding unit 15 a in the holding unit order (2). The first examination order is determined based on the order of the optometry unit 16B held and the optometry unit 16A held in the unit holding unit 15a in the holding unit order (3). The second inspection order is determined, for example, by the method described with reference to FIG.

  Returning to FIG. 15, the order determination unit 111 outputs the determination result of the first examination order to the rotation drive control unit 112, and outputs the determination result of the second examination order for each optometry unit 16 to the unit movement control unit 115. .

  The rotation drive control unit 112 performs rotation drive control on the rotation drive unit 32 based on the identification result input from the unit identification unit 110 and the determination result of the first inspection order input from the order determination unit 111, and rotates. The three types of optometry units 16 held for each unit holding portion 15a of the unit 15 are selectively moved to the opposing positions in the first examination order.

  Specifically, the rotation drive control unit 112 controls the rotation drive unit 32 to rotate and rotate the rotation unit 15 so that the first optometry unit 16 moves to the facing position in the first examination order. Then, the rotation drive control unit 112 performs the second operation in the first examination sequence when the completion operation that the examination of both eyes of the eye E to be examined by the first optometry unit 16 is completed is performed on the touch panel monitor 20 or the like. The rotational drive unit 32 is rotationally driven to rotate the rotational unit 15 so that the th optometric unit 16 moves to the opposite position.

  Next, when the operation for completing the inspection of both eyes of the eye E by the second optometry unit 16 is performed on the touch panel monitor 20 or the like, the rotation drive control unit 112 performs the third operation in the first examination order. The rotational drive unit 32 is rotationally driven to rotate the rotational unit 15 so that the th optometric unit 16 moves to the opposite position. Thereby, the three types of optometry units 16 held for each unit holding portion 15a of the rotation unit 15 can be selectively moved to the opposing positions in the first examination order. In addition, the completion of the inspection of both eyes is automatically determined when the measurement (inspection) of the predetermined number of times set by the examiner is completed or when the error-free result is obtained for the predetermined number of times, The optometry unit 16 and the rotation unit 15 may be moved automatically in accordance with the second examination order and the first examination order.

  The signal acquisition unit 113 acquires the above-described imaging signal, light reception signal, and the like from the optometry unit 16 set at the facing position, and outputs them to both the alignment detection unit 114 and the analysis unit 116, respectively.

  The alignment detection unit 114 detects the alignment of the optometry unit 16 set at the facing position. For example, when the optometry unit 16A moves to the opposite position, the alignment detection unit 114 detects the alignment of the optometry unit 16A in the triaxial direction with respect to the eye E based on the imaging signal of the imaging element 42d acquired from the signal acquisition unit 113. .

  Moreover, the alignment detection part 114 acquires the image pick-up signal of the image pick-up element 85 and the image pick-up element 63 from the signal acquisition part 113, respectively, when the optometry unit 16B is set in the opposing position. Then, the alignment detection unit 114 detects the alignment of the optometry unit 16B in the Z-axis direction with respect to the eye E based on the imaging signal from the imaging element 85, and performs the detection on the eye E based on the imaging signal from the imaging element 63. Alignment detection of the optometry unit 16B in the X and Y axis directions is performed.

  Further, when the optometry unit 16C is set at the facing position, the alignment detection unit 114 acquires the image signal of the image sensor 100i and the light reception signal of the light receiving sensor 105c from the signal acquisition unit 113. The alignment detection unit 114 detects the alignment of the optometry unit 16C in the XY axis direction with respect to the eye E based on the image signal from the image sensor 100i, and uses the alignment detection result and the light reception signal from the light reception sensor 105c. Based on this, alignment detection in the Z-axis direction of the optometry unit 16C with respect to the eye E is performed.

  As described above, the alignment detection unit 114 detects the alignment of the optometry unit 16 set at the facing position, and outputs the alignment detection result to the unit movement control unit 115.

  The unit movement control unit 115 controls the unit movement unit 33 on the basis of the second movement order input from the order determination unit 111 every time a new optometry unit 16 is set at the opposite position. The first eye of the eye E is moved to the first eye examination position for examination. Next, the unit movement control unit 115 detects that the first eye examination in the optometry unit 16 has been completed on the touch panel monitor 20 or the like, or after detecting completion of the predetermined number of examinations, Based on the above-mentioned second movement order, the unit moving unit 33 is controlled to move the optometry unit 16 to the second eye examination position for examining the second eye of the eye E.

  Further, the unit movement control unit 115 controls the unit movement unit 33 based on the alignment detection result input from the alignment detection unit 114 every time the optometry unit 16 is moved to the first eye examination position or the second eye examination position. The above-described auto alignment is executed under control.

  The analysis unit 116 acquires and analyzes the imaging signal and the light reception signal (corresponding to the output result of the present invention) output from the optometry unit 16 set at the opposing position via the signal acquisition unit 113, Obtain eye characteristics test results.

  For example, when the optometry unit 16A is set at the facing position, the analysis unit 116 acquires the imaging signals of the imaging element 42d and the imaging element 44d from the signal acquisition unit 113, respectively. Next, the analysis unit 116 analyzes the shape of the cornea Ec of the eye E from the image based on the imaging signal of the image sensor 42d, and the eye refractive power (spherical power, cylindrical power, And shaft angle). And the analysis part 116 outputs the shape of the cornea Ec and the test result of eye refractive power to the touchscreen monitor 20 with each above-mentioned image.

  Further, when the optometry unit 16B is set at the opposing position, the analysis unit 116 acquires the imaging signal of the imaging element 80 from the signal acquisition unit 113, and the examination result of the corneal endothelial cell (cornea) from the image based on the imaging signal The size, shape, density, etc. of the endothelial cells are analyzed. And the analysis part 116 outputs the test result of a corneal endothelial cell to the touchscreen monitor 20 with the above-mentioned image.

  Further, the analysis unit 116 acquires the light reception signal of the light reception sensor 103c and the output value from the pressure sensor 107c from the signal acquisition unit 113 when the optometry unit 16C is set at the facing position. And the analysis part 116 detects the applanation state of the cornea Ec based on the change of the magnitude | size of a received light signal. Next, the analysis unit 116 analyzes the intraocular pressure (intraocular pressure value) of the cornea Ec based on the detection result of the applanation state of the cornea Ec and the output from the pressure sensor 107c, and the analysis result of the intraocular pressure is displayed on the touch panel. To the expression monitor 20.

  The touch panel monitor 20 includes various observation images of the eye E imaged by each optometry unit 16 and test results of each test (such as KR test, SP test, and CT test) obtained by the analysis of the analysis unit 116. Is displayed. If necessary, the data of each inspection result can be transferred to an external database, or output to a built-in or external printer.

[Operation of Compound Inspection Apparatus of First Embodiment]
Next, the operation (inspection of a plurality of eye characteristics) of the composite inspection apparatus 10 having the above configuration will be described with reference to FIG. Here, FIG. 18 is a flowchart showing a flow of the inspection processing of a plurality of eye characteristics by the composite inspection apparatus 10 of the first embodiment.

  First, the examiner selects an optometry unit 16 corresponding to a plurality of eye characteristic examinations performed on the subject. For example, in this embodiment, since the KR examination, the SP examination, and the CT examination are performed, the examiner can select three types of optometry units corresponding to the KR examination, the SP examination, and the CT examination from among the plural kinds of optometry units 16, respectively. 16A, 16B, and 16C are selected. Then, the examiner attaches the selected optometry units 16A, 16B, and 16C to each unit holding portion 15a of the rotation unit 15 (step S1). Accordingly, the optometry units 16A, 16B, and 16C are detachably and interchangeably held by the unit holding portions 15a.

  Then, when the examiner activates the composite inspection apparatus 10 (power is turned on), the unit identification unit 110 of the control unit 37 is optometric units 16A and 16A held in the unit holding units 15a via the interfaces 35a and 35b, respectively. Identification information is acquired from 16B and 16C, respectively. Thereby, the unit identification part 110 identifies the type of the optometry unit 16 (optometry units 16A, 16B, 16C) held for each unit holding part 15a, and outputs the identification result to the rotation drive control part 112 and the like. (Step S2).

  Next, the control unit 37 (order determination unit 111) displays the inspection order input screen 117 shown in FIG. 16 on the touch panel monitor 20 based on the identification result by the unit identification unit 110 described above. Thus, when the examiner performs a touch operation for designating the inspection order on the inspection order input screen 117, the order determination unit 111 determines the first inspection order and the second inspection order based on the input result of the touch operation ( Step S3). Then, the order determination unit 111 outputs the determination result of the first inspection order to the rotation drive control unit 112, and outputs the determination result of the second inspection order for each optometry unit 16 to the unit movement control unit 115.

  Note that the first inspection order may be determined based on the holder order in which the unit holders 15a of the rotary unit 15 are previously ordered, as described with reference to FIG.

  After the determination of the first inspection order and the second inspection order, the rotational drive control unit 112 is based on the identification result input from the unit identification unit 110 and the determination result of the first inspection order input from the order determination unit 111. Then, rotation drive control of the rotation drive unit 32 is started. Specifically, the rotation drive control unit 112 controls the rotation drive unit 32 to rotate and rotates the rotation unit 15 so that the first optometry unit 16 moves to the facing position in the first examination order (Step S1). S4, S5).

  When the first optometry unit 16 moves to the facing position, various light sources, imaging elements, light receiving elements, and the like of the first optometry unit 16 are activated, and the first optometry unit 16 is activated. Then, the imaging signal and the light reception signal described above are output from the first optometry unit 16 and output to the alignment detection unit 114 and the analysis unit 116 via the signal acquisition unit 113. In addition, the control unit 37 displays various observation images of the eye E on the touch panel monitor 20 based on the imaging signal of the eye E output from the signal acquisition unit 113.

  In addition, the unit movement control unit 115 drives the unit movement unit 33 based on the determination result of the second examination order input from the order determination unit 111, and moves the first optometry unit 16 set at the opposing position to the first. Move to the single eye inspection position.

  After the subject's face is supported by the face support unit 13, the examiner confirms that the image of the anterior segment of the subject eye E is reflected on the touch panel monitor 20, and the image of the anterior segment is displayed. When it is not reflected, the height of the chin rest of the face support portion 13 is adjusted, or the optometry unit 16 is roughly moved up and down, left and right and back and forth by manual operation. Next, the examiner performs an inspection start operation such as a pressing operation of a measurement switch (not shown) of the operation lever 19 or a touch operation on the touch panel monitor 20.

  In response to the input of the examination start operation from the examiner, the alignment detection unit 114 detects the alignment in the triaxial direction of the optometry unit 16 with respect to the first eye of the eye E based on the imaging signal acquired from the signal acquisition unit 113. This alignment detection result is output to the unit movement control unit 115 (step S6).

  Receiving the input of the alignment detection result from the alignment detection unit 114, the unit movement control unit 115 controls the unit movement unit 33 based on the alignment detection result to execute the above-described auto alignment (step S7). Before and after this automatic alignment, the examiner performs an opening operation of opening the subject's eyelid when the subject's own opening is insufficient. At this time, if the examiner cannot reach the subject's heel, the touch panel monitor 20 is rotated by rotating the touch panel monitor 20 around the rotation center C (inner rotation shaft 14a), for example. The composite inspection apparatus 10 moves to a lateral position in the X-axis direction (see FIG. 4). Thus, the examiner can perform the opening operation while gazing at the screen of the touch panel monitor 20. Note that the timing of rotating the touch panel monitor 20 is not limited to before and after the auto alignment, and can be executed at an arbitrary timing.

  After completion of the auto alignment, the analysis unit 116 acquires and analyzes the imaging signal, the light reception signal, and the like output from the first optometry unit 16 via the signal acquisition unit 113, thereby analyzing the first examination. A test result of the eye characteristics of the first eye is obtained (step S8). Then, the analysis unit 116 outputs and displays the inspection result on the touch panel monitor 20.

  When the examination of the eye characteristics of the first eye is completed a predetermined number of times, the unit movement control unit 115 drives the unit moving unit 33 based on the determination result of the second examination order described above, and the first optometry unit 16 is moved. The first eye examination position is moved to the second eye examination position (NO in step S9, step S10).

  Next, alignment detection by the alignment detection unit 114 and auto-alignment by the unit movement control unit 115 are repeatedly executed (steps S6 and S7). Then, the analysis unit 116 analyzes the imaging signal, the light reception signal, and the like output from the first optometry unit 16 via the signal acquisition unit 113, so that the second eye corresponding to the first examination is analyzed. An eye characteristic inspection result is obtained (step S8). Thus, the first examination for both eyes of the eye E is completed (YES in step S9).

  Subsequently, the rotation drive control unit 112 controls the rotation drive unit 32 to rotate the rotation unit 15 so that the second optometry unit 16 moves to the facing position based on the first examination order, thereby rotating the rotation unit 15 (step). NO in S11, step S12, and step S5). Then, the above-described processing from step S6 to step S10 is repeatedly executed, and the examination result of the eye characteristics of both eyes of the eye E corresponding to the second examination is obtained.

  Similarly, the processes after step S5 described above are repeatedly executed until all the inspections are completed (YES in step S11). Thereby, the test result of three types of eye characteristics with respect to the eye E is obtained.

  When the examiner examines the eye characteristics of another subject, the examiner attaches the optometry unit 16 corresponding to the examination to each unit holding portion 15 a of the rotation unit 15. Then, by repeatedly executing the processes after step S2 described above, a maximum of three types of eye characteristic inspection results for the eye E of another subject can be obtained.

[Effect of the first embodiment]
As described above, in the combined examination apparatus 10 according to the first embodiment, any optometry unit 16 selected by the examiner from a plurality of types of optometry units 16 can be freely attached to and detached from each unit holding portion 15a of the rotation unit 15. In addition, since it can be held interchangeably, a plurality of eye characteristics that differ for each subject can be examined with a single device. In addition, since the examination of a plurality of eye characteristics is performed with one apparatus, the space in the examination room or the like can be saved, and the movement of the subject for each examination becomes unnecessary.

[Composite Inspection Device of Second Embodiment]
Next, the composite inspection apparatus 10A (see FIG. 19) according to the second embodiment of the present invention will be described. As shown in FIG. 18 described above, in the first embodiment, when the second and subsequent examinations are performed, the rotation unit 15 is rotated and the new optometry unit 16 is moved to the facing position. The new optometry unit 16 is moved by the unit moving unit 33. On the other hand, in the combined inspection apparatus 10A of the second embodiment, when the subsequent inspection is performed based on the result of detecting the position of the eye E in the first (or even after the second) inspection. Rotates and moves the rotating unit 15 simultaneously.

  Of the three types of optometry units 16 that are detachably and interchangeably held by the unit holding portions 15a of the rotation unit 15, the optometry unit 16 set at the opposite position is the first optometry unit of the present invention. The optometry unit 16 other than the facing position corresponds to the second optometry unit of the present invention.

  FIG. 19 is a block diagram illustrating an electrical configuration of the combined inspection apparatus 10A according to the second embodiment. Since the combined inspection apparatus 10A of the second embodiment has basically the same configuration as the combined inspection apparatus 10 of the first embodiment, the same functions or configurations are the same as those of the first embodiment. Reference numerals are assigned and explanations thereof are omitted. In FIG. 19, the configuration of the control unit 37 is partially omitted in order to prevent the drawing from becoming complicated.

  As illustrated in FIG. 19, the control unit 37 of the second embodiment includes a unit identification unit 110, an order determination unit 111, a rotation drive control unit 112, a signal acquisition unit 113, and an alignment described in the first embodiment. In addition to the detection unit 114, the unit movement control unit 115, and the analysis unit 116, the working distance acquisition unit 121, the eye position detection unit 122, and the position determination unit 123 function.

  The working distance acquisition unit 121 indicates a working distance [distance in the Z-axis direction from the tip of the inspection device to the eye E) for each of the plurality of types of optometry units 16 from the memory 125 (or a server on the Internet). Information 127 is acquired, and this working distance information 127 is output to the position determination unit 123 described later. Specifically, the working distance acquisition unit 121 acquires the working distance information 127 of the optometry unit 16 that is next moved to the facing position based on the first examination order input from the order determination unit 111, and the position determination unit 123. Output to.

  The eye position detection unit 122 detects an imaging signal or the like output from the optometry unit 16 after the optometry unit 16 that performs the first examination is set at the facing position in accordance with the rotation of the rotation unit 15 (first embodiment of the present invention). Based on the output result of one optometry unit), the position of the eye E is detected. For example, the subject eye position detection unit 122 performs the first eye and the second eye of the subject eye E based on a predetermined reference position after the auto-alignment of the optometry unit 16 for the first eye and the second eye of the eye E, respectively. The three-dimensional positions of the eyes are detected.

  Specifically, the eye position detection unit 122 detects the three-dimensional positions of the first eye and the second eye of the eye E from the current position and working distance in the triaxial direction of the optometry unit 16 that has completed the alignment. Then, the eye position detection unit 122 outputs the position detection result of both eyes of the eye E to the position determination unit 123.

  The method for detecting the position of the eye E (first eye and second eye) is not particularly limited to the above method, and various known methods such as using the alignment detection result by the alignment detection unit 114 may be used. Can be used.

  The position determination unit 123 operates when the rotation unit 15 is rotated to move the second and subsequent optometry units 16 (second optometry unit) to the facing position. The position determination unit 123 includes a determination result of the first examination order and the second examination order input from the order determination unit 111, working distance information 127 input from the working distance acquisition unit 121, and an eye position detection unit 122 to be examined. The position of the next optometry unit 16 in the three-axis direction with respect to the subject eye E (first eye) is determined based on the position detection result of the subject eye E (both eyes). Then, the position determination unit 123 outputs the determination result of the position of the next optometry unit 16 in the three-axis direction to the unit movement control unit 115.

  FIG. 20 is an explanatory diagram for explaining the movement process of the rotation unit 15 performed by the unit movement control unit 115 of the second embodiment when the second and subsequent optometry units 16 are moved to the opposed positions.

  As indicated by reference numerals 130A, 130B, and 130C in FIG. 20, when the second and subsequent optometry units 16 are moved to the opposed positions, the unit movement control unit 115 of the second embodiment simultaneously rotates the rotation unit 15 with this movement. Is moved in the three-axis direction. Specifically, the unit movement control unit 115 determines the shortest movement path of the rotation unit 15 based on the rotation angle at which the rotation unit 15 rotates and the determination result of the position in the three axis directions determined by the position determination unit 123 described above. After the determination, the unit moving unit 33 is controlled to move the rotating unit 15 to the position in the three-axis direction with the shortest distance. In the drawing, the rotary unit 15 is moved only in the Z-axis direction, but may be moved in the X-axis direction and the Y-axis direction as necessary.

[Operation of Compound Inspection Apparatus of Second Embodiment]
FIG. 21 is a flowchart showing a flow of inspection processing for a plurality of eye characteristics by the composite inspection apparatus 10A of the second embodiment. Since the processing up to step S7 is basically the same as that of the first embodiment shown in FIG. 18 described above, a detailed description thereof is omitted here.

  As shown in FIG. 21, when the auto-alignment of the optometry unit 16 with respect to the eye E (first eye) is completed in the first examination (step S7), the eye position detection unit 122 examines the three axes of the optometry unit 16. Based on the current position in the direction and the working distance, the position of the first eye of the eye E is detected (step S7A).

  Next, as in the first embodiment shown in FIG. 18 described above, after the examination result of the eye characteristics of the first eye in the first examination is obtained (step S8), the processes in steps S10 and S7 are performed. Is executed, and the automatic alignment of the optometry unit 16 with respect to the second eye of the eye E is completed. Then, after this auto-alignment is completed, the detection of the position of the second eye of the eye E to be examined by the eye position detection unit 122 is executed again (step S7A), and then the eye characteristics of the second eye in the first examination Is obtained (step S8).

  After completion of the first examination for both eyes of the eye E (YES in step S9), the working distance acquisition unit 121 performs the second operation from the memory 125 based on the first examination order input from the order determination unit 111. The working distance information 127 of the optometry unit 16 is acquired (NO in step S11, step S12, and step S13). Then, the working distance acquisition unit 121 outputs the acquired working distance information 127 to the position determination unit 123.

  Next, the position determination unit 123 determines the first inspection order and the second inspection order from the order determination unit 111, the working distance information 127 from the working distance acquisition unit 121, and the eye to be examined by the eye position detection unit 122. Based on the position detection result of E, the position in the three-axis direction of the second optometry unit 16 with respect to the first eye of the eye E is determined (step S14). The determination result of the position of the second optometry unit 16 in the three-axis direction is output from the position determination unit 123 to the unit movement control unit 115.

  Then, the rotation drive control unit 112 controls the rotation drive unit 32 to rotate and rotates the rotation unit 15 so that the second optometry unit 16 moves to the facing position based on the first examination order (step S15). ). At the same time, the unit movement control unit 115 obtains the shortest movement path of the rotation unit 15 based on the rotation angle that the rotation unit 15 rotates and the determination result of the position in the three axis directions determined by the position determination unit 123 described above. After that, the unit moving unit 33 is controlled to move the rotary unit 15 to the position in the three-axis direction with the shortest distance (step S16). Accordingly, as shown in FIG. 20 described above, the rotation of the rotary unit 15 and the movement of the rotary unit 15 in the three-axis directions are performed simultaneously. In addition, after the rotation of the rotation unit 15 is completed, the position of the optometry unit 16 in the three-axis direction is confirmed, and if there is a deviation, fine adjustment is performed.

  Next, the process of step S8 is executed to obtain the examination results of the eye characteristics of the first eye of the eye E corresponding to the second examination, and further, step S10 and steps S7 to S9 (step S7A is the same). (Excluding) is executed, and the examination result of the eye characteristics of the second eye of the eye E corresponding to the second examination is obtained (YES in step S9).

  Similarly, until all the examinations are completed, the processes in and after step S6, that is, the rotational drive of the rotary unit 15 and the three-axis position adjustment, and the examination of both eyes of the eye E to be examined by the next optometry unit 16 Are repeatedly executed (YES in step S11).

[Effects of Second Embodiment]
As described above, in the combined examination apparatus 10A according to the second embodiment, the rotation unit 15 is rotated based on the position of the eye E detected in the first examination, and the second and subsequent optometry units 16 are moved to the opposing positions. Since the second and subsequent optometry units 16 are simultaneously moved in the three-axis directions while being moved, the time required to start the second and subsequent examinations can be shortened.

  The detection of the position of the eye to be examined by the eye position detection unit 122 is not limited to the time of the examination by the first optometry unit 16, but every time the examination by the second and subsequent optometry units 16 is performed. Alternatively, it may be executed periodically.

[Nose collision avoidance control]
In the first embodiment and the second embodiment, the optometry unit 16 set at the opposite position is moved from the first eye examination position to the second eye examination position for each examination of various eye characteristics. At this time, when the optometry unit 16 has the airflow spray nozzle 100b (corresponding to the projecting portion of the present invention) projecting toward the eye E as in the optometry unit 16C, for example, It is necessary to avoid the collision of the airflow spray nozzle 100b.

  For this reason, the rotational drive control unit 112 of each of the above embodiments rotationally drives the rotational drive unit 32 when moving the optometry unit 16C set at the facing position from the first eye examination position to the second eye examination position. Thus, the collision of the airflow spray nozzle 100b with the subject's nose is avoided. That is, the rotation drive control unit 112 functions as a collision avoidance control unit of the present invention.

<First example of collision avoidance control>
FIG. 22 is an explanatory diagram for describing a first example of collision avoidance control by the rotation drive control unit 112. As shown in FIG. 22, first, the rotational drive control unit 112 refers to the first examination order and the second examination order determined by the order determining unit 111 described above, and the eye E to be examined facing the optometry unit 16C. It is determined whether the first eye of the left eye or the right eye. Next, based on the determination result, the rotation drive control unit 112 controls the rotation drive unit 32 to move the rotation unit 15 in the direction in which the airflow spray nozzle 100b is retracted from the subject's nose, as indicated by reference numeral 140A. Performs retraction control to rotate.

  Then, as indicated by reference numeral 140B, the unit movement control unit 115 moves the unit at the timing when the airflow spray nozzle 100b is sufficiently retracted from the subject's nose after the retraction control by the rotation drive control unit 112 is started. The rotation unit 15 is moved in the X-axis direction by controlling the unit 33. Thereby, the center (double rotation axis 14) of the rotation unit 15 is moved from the position facing the first eye of the eye E to the position facing the second eye.

  On the other hand, the rotation drive control unit 112 continues the rotation of the rotation unit 15 as indicated by reference numeral 140C, and the position where the airflow spray nozzle 100b faces the second eye, that is, the airflow spray nozzle 100b is the double rotation shaft 14. Rotation control is performed to rotate the rotary unit 15 until it moves to a position rotated 360 ° around the center. Thereby, the optometry unit 16C is moved to the second eye examination position without the airflow spray nozzle 100b colliding with the subject's nose.

<Second example of collision avoidance control>
FIG. 23 is an explanatory diagram for explaining the retraction control of the second example of the collision avoidance control by the rotation drive control unit 112. FIG. 24 is an explanatory diagram for explaining the rotation control of the second example of the collision avoidance control by the rotation drive control unit 112.

  As indicated by reference numerals 150A and 150B in FIG. 23, first, the rotational drive control unit 112 determines that the first eye of the eye E to be examined facing the optometry unit 16C is the left eye and the right as in the first example described above. Determine which of the eyes. Next, the rotation drive control unit 112 controls the rotation drive unit 32 to perform retraction control for rotating the rotation unit 15 in the first rotation direction, as indicated by the parenthesized number (1) in the figure. The first rotation direction is a rotation direction in which the airflow spray nozzle 100b retreats from the subject's nose.

  Then, as indicated by reference numerals 150C and 150D in FIG. 24, the unit movement control unit 115 sufficiently retracts the airflow spray nozzle 100b from the subject's nose after the retraction control by the rotation drive control unit 112 is started. At the timing, the unit moving unit 33 is driven to start moving the rotating unit 15.

  Specifically, the unit movement control unit 115 moves the unit so that the rotation unit 15 (optometry unit 16C) moves to the rear side in the Z-axis direction, as indicated by the parenthesized number (2) in the figure. The unit 33 is controlled. Next, the unit movement control unit 115 moves the rotating unit 15 in the X-axis direction as indicated by the parenthesized number (3) in the figure. Thereby, as shown to the code | symbol 150E, the center (double rotation axis | shaft 14) of the rotation unit 15 is moved from the position facing the 1st eye of the eye E to the position facing the 2nd eye.

  Then, the rotation drive control unit 112 controls the rotation drive unit 32 as indicated by the parenthesized number (4) in the figure so that the airflow spray nozzle 100b faces the second eye of the subject. Rotation control for rotating the rotation unit 15 in the second rotation direction opposite to the first rotation direction is performed. When this rotation control is completed, the unit movement control unit 115 drives the unit movement unit 33 as shown by the parenthesized number (5) in the figure to move the rotation unit 15 (optometry unit 16C) of the eye E to be examined. Move to the front side in the Z-axis direction toward the second eye. Thereby, the optometry unit 16C is moved to the second eye examination position without the airflow spray nozzle 100b colliding with the subject's nose.

  The method of moving the optometry unit 16C from the first eye examination position to the second eye examination position so that the airflow blowing nozzle 100b does not collide with the subject's nose is the method shown in FIGS. The method is not limited to the above, and a known method may be used. In addition to the optometry unit 16C for CT examinations, the above method is also used when various optometry units 16 having projections projecting toward the eye E are moved from the first eye examination position to the second eye examination position. Can be used.

[Composite Inspection Apparatus of Third Embodiment]
Next, the composite inspection apparatus 10B (see FIG. 29) according to the third embodiment of the present invention will be described. In each of the above embodiments, the optometry unit 16 that cannot be used for a single examination has been described as being detachably and interchangeably held by each unit holding portion 15a of the rotating unit 15, but in the third embodiment, A hand-held (handy-type) optometry unit 160 (see FIG. 25, etc.) that can be used for a single examination is detachably and interchangeably held by each unit holding portion 15a.

  The combined inspection apparatus 10B (see FIG. 29) of the third embodiment has basically the same configuration as the combined inspection apparatuses 10 and 10A of the above embodiments except that the optometry unit 160 is used. The same functions or configurations as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 25 is a front perspective view of the optometry unit 160 for KR examination. FIG. 26 is a front perspective view of the optometry unit 160 for SP examination. FIG. 27 is a front perspective view of an optometry unit 160 for CT examination. FIG. 28 is a rear perspective view of each optometry unit 160 shown in FIGS. 25 to 27.

  As shown in FIGS. 25 to 28, each optometry unit 160 is a hand-held optometry apparatus that enables examination of eye characteristics even when the subject is sleeping. Each optometry unit 160 includes the above-described optometry unit 16 (optometry units 16A, 16B, and 16C), a unit main body portion 161, a handle portion 162, and a touch panel monitor 163.

  The unit main body 161 holds the optometry unit 16 selected from among a plurality of types of optometry units 16 in the up and down direction (Y-axis direction) from the back side thereof so as to be detachable and replaceable. In the present embodiment, the optometry unit 16 and the unit main body 161 are separate bodies, but they may be integrated. Further, the unit main body 161 may be provided with a position adjusting unit (not shown) that moves the held optometry unit 16 in the triaxial direction.

  The unit main body 161 is provided with a configuration necessary for the optometry unit 160 to inspect the eye characteristics as a single unit. This necessary configuration includes, for example, the unit identification unit 110, the signal acquisition unit 113, the alignment detection unit 114, the unit movement control unit 115, the analysis unit 116, and the like illustrated in FIG.

  The handle portion 162 (also referred to as a grip portion) is provided below the unit main body portion 161 and is gripped by the examiner when the eye characteristic unit 160 performs eye characteristic inspection alone. The above-described position adjustment unit (not shown) is provided between the handle unit 162 and the unit main body 161. In addition, you may provide various operation parts, such as an operation key and an operation button, and the button for issuing the trigger which starts a measurement in the handle part 162. FIG.

  A battery (not shown) serving as a drive source for the optometry unit 160 is provided inside the handle portion 162. Further, the handle portion 162 is provided with an interface (not shown) for electrically connecting the unit main body portion 161 (optometry unit 16) and the control portion 37 in the base 12 described above.

  The touch panel monitor 163 corresponds to the display unit of the present invention, and is attached to the back side of the unit main body 161. For example, the touch panel monitor 163 rotates between a lying position (see FIG. 28) where the back side faces the examiner when not in use and an upright position (not shown) where the screen side faces the examiner when in use. The unit main body 161 is attached to the back side so as to be free. Note that the direction of the rotation axis of the touch panel monitor 163 is not limited to the direction shown in the drawing. The touch panel monitor 163 displays various images and inspection results obtained when the eye characteristics unit 160 inspects eye characteristics.

  FIG. 29 is an external perspective view of a combined inspection apparatus 10B according to the third embodiment. In the combined inspection apparatus 10B, the handle portions 162 of the optometry units 160 different from each other are detachably held by the unit holding portions 15a of the rotation unit 15. Specifically, an interface (not shown) of the handle portion 162 is connected to the interface 35a of each unit holding portion 15a. Thereby, each optometry unit 160 and the control part 37 in the base 12 are electrically connected.

  The control unit 37 of the third embodiment has basically the same configuration as the control unit 37 (see FIGS. 15 and 19) of each of the above embodiments. For example, the control unit 37 is provided in the unit main body 161 (unit The identification unit 110, the signal acquisition unit 113, the alignment detection unit 114, the unit movement control unit 115, the analysis unit 116, and the like may be omitted.

  Although not shown in FIG. 29, for example, the touch panel monitor 20 is provided on the upper surface of the double rotating shaft 14 via the arm 24, and the eye characteristics are inspected by the optometry unit 160 set at the opposite position. Various images obtained when performing the above may be displayed on the touch panel monitor 20. Further, instead of providing the touch panel monitor 20, the above-described various images may be displayed on the touch panel monitor 163 provided on the back side of the optometry unit 160.

[Effect of the third embodiment]
As described above, the composite inspection apparatus 10B according to the third embodiment has the above-described configurations except that the plurality of types of hand-held optometry units 160 are detachably and interchangeably held by the unit holding portions 15a of the rotation unit 15. Since it is basically the same as the embodiment, the same effects as those of the above embodiments can be obtained. Furthermore, in the compound inspection apparatus 10B of the third embodiment, the eye characteristics can be inspected alone by removing each optometry unit 160 from the rotation unit 15. For this reason, in the combined inspection apparatus 10B, the stationary combined inspection apparatus and the hand-held inspection apparatus can be used together, so that it is not necessary to prepare both separately, and the purchase cost and installation space of the apparatus are eliminated. Both of them can be reduced.

[Composite Inspection Apparatus of Fourth Embodiment]
FIG. 30 is a schematic view of a combined inspection apparatus 10D according to the fourth embodiment. In the first embodiment and the second embodiment, since the central angle of the three types of optometry units 16 held by each unit holding portion 15a of the rotation unit 15 is 120 °, the total of the center angles of the optometry units 16 is the same. 360 °, and each optometry unit 16 forms a circular shape.

  On the other hand, as shown in FIG. 30, in the compound inspection apparatus 10D of the fourth embodiment, the central angle of each optometry unit 16 is less than 120 °, and is held by the rotation unit 15 (not shown). The total of the central angles of the three types of optometry units 16 is also less than 360 °. For this reason, each optometry unit 16 of 4th Embodiment comprises a fan shape (fan shape: fan-shaped). The combined inspection apparatus 10D according to the fourth embodiment is basically the same as the first embodiment and the second embodiment except that the three types of optometry units 16 form a fan shape instead of a circular shape. The configuration has the same effects as those of the embodiments.

[Composite Inspection Apparatus of Fifth Embodiment]
FIG. 31 is a top view of a combined inspection apparatus 10D according to the fifth embodiment. FIG. 32 is a front view of the compound inspection apparatus 10D according to the fifth embodiment viewed from the subject side. In the combined inspection apparatuses 10, 10 </ b> A to 10 </ b> C of the above embodiments, the rotation unit 15 rotates around the double rotation shaft 14 (rotation center C) parallel to the Y-axis direction, but in the fifth embodiment, the rotation unit 171. Rotates around a rotation axis 170 parallel to the Z-axis direction. In the fifth embodiment, the X axis corresponds to the second axis of the present invention, the Y axis corresponds to the third axis of the present invention, and the Z axis corresponds to the first axis of the present invention.

  As shown in FIGS. 31 and 32, the combined inspection apparatus 10D of the fifth embodiment is the first embodiment except that it includes a rotating shaft 170, a rotating unit 171, and a plurality of types of optometry units 172. The configuration is basically the same as that of the combined inspection apparatus 10, 10A of the embodiment and the second embodiment. For this reason, the same functions or configurations as those of the above embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  The rotating shaft 170 holds the rotating unit 171 rotatably about a rotation center C1 parallel to the Z-axis direction. A touch panel monitor 20 is attached to the end of the rotating shaft 170 on the examiner side via the arm 24 described above. It should be noted that the rotation unit 170 and the touch panel monitor 20 may be held relative to each other by the rotation shaft 170 so as to be rotatable relative to each other by forming the rotation shaft 170 in a double rotation shaft structure as in the above embodiments.

  The rotation unit 171 has a cylindrical shape, and the rotation shaft 170 passes through the center thereof. The rotation unit 171 is provided with a plurality (three) of unit holding portions 171a along the axis of the rotation center C1. Each unit holding portion 171a is formed with a holding hole extending in the Z-axis direction for holding any one of a plurality of types of optometry units 172 in a detachable and replaceable manner. The position of the rotary unit 171 can be adjusted in three axis directions by a unit moving unit (not shown).

  The plurality of types of optometry units 172 have basically the same configuration as each of the optometry units 16 described above except that the appearance shape is different from that of each of the optometry units 16 described above. For example, when performing KR inspection, SP inspection, and CT inspection on the eye E, the KR inspection optometry unit 172A, SP inspection optometry unit 172B, and CT are placed in the holding holes of the respective unit holding portions 171a. An optometry unit 172C for inspection is attached to each.

  Each optometry unit 172 that is detachably held by the rotation unit 171 rotates the rotation unit 15 by the rotation drive unit 32 described above, thereby performing an examination of the position facing the eye E, that is, the eye E to be examined. It is selectively moved to the position to perform.

  Note that the facing position is not limited to the position shown in FIG. 32, and can be any position around the axis of the rotation axis 170 (rotation center C1), for example, as shown in FIG. . Here, FIG. 33 is an explanatory diagram for explaining a modification of the facing position in the fifth embodiment.

  Other configurations of the composite inspection apparatus 10D of the fifth embodiment are basically the same as those of the first embodiment and the second embodiment. For this reason, the effect similar to each said embodiment is acquired also about compound inspection equipment 10D of a 5th embodiment.

[Others]
FIG. 34 is an explanatory diagram for explaining a modified usage example of the combined inspection apparatus 10 of the first embodiment. In the first embodiment, the optometry unit 16 is held by all the unit holding portions 15a of the rotation unit 15. On the other hand, when there are few types of eye characteristic inspections (for example, when there are two or less types), as shown in FIG. . The same applies to other embodiments.

  In the first embodiment, each unit holding part 15a of the rotation unit 15 can hold a maximum of three types of optometry units 16, but the number of optometry units 16 held may be two or four or more. Good. The same applies to other embodiments.

  In the first embodiment, an arbitrary optometry unit 16 is held in each unit holding portion 15a of the rotation unit 15, but the types (two or more types) of the optometry unit 16 held for each unit holding portion 15a are possible. It may be determined. In this case, the control unit 37 displays a warning on the touch panel monitor 20 or the like when the unit holding unit 15a holds an optometry unit 16 other than a predetermined type based on the identification result of the unit identification unit 110 described above. (Error display) may be performed. The same applies to other embodiments.

  In the first embodiment, the structure in which the rotation unit 15 and the optometry unit 16 rotate can be visually recognized from the subject. For example, except for the optometry unit 16 set at the opposite position, The optometry unit 16 may be covered with a cover. Thereby, insertion of a subject's finger | toe with respect to the rotating unit 15 etc. in rotation can be prevented. The same applies to other embodiments.

  In each said embodiment, although the rotation unit 15 is rotated by the rotation drive part 32, an examiner may perform rotation of the rotation unit 15 by manual operation, for example.

  The combined examination apparatuses 10, 10A, 10B, 10C, and 10D of the above embodiments are configured to include the optometry unit 16, but may be configured to exclude the optometry units 16 and 160, that is, the optometry unit 16 is configured. , 160 can also be provided.

  In each of the above-described embodiments, the examiner (user) performs mounting and replacement of the optometry unit with respect to the composite inspection apparatus. However, the user cannot replace the optometry unit, and the factory (manufacturer) according to the user's request. Alternatively, the present invention can also be applied to a specification (structure) that can be replaced only by a service person.

  10, 10A, 10B, 10C, 10D ... Composite inspection device, 14 ... Double rotating shaft, 15 ... Rotating unit, 15a ... Unit holder, 16, 16A, 16B, 16C ... Optometry unit, 20 ... Touch panel monitor, 24 DESCRIPTION OF SYMBOLS ... Arm, 32 ... Rotation drive part, 33 ... Unit movement part, 37 ... Control part, 110 ... Unit identification part, 111 ... Order determination part, 112 ... Rotation drive control part, 114 ... Alignment detection part, 115 ... Unit movement control , 116 ... analysis unit, 117 ... examination order input screen, 121 ... working distance acquisition unit, 122 ... eye position detection unit for examination, 123 ... position determination unit

Claims (11)

A rotary unit provided so as to be rotatable about a rotation axis, and a plurality of types of optometry units for examining different eye characteristics of the eye to be examined can be exchanged along the axis of the rotation axis. With a rotating unit to hold,
The rotation unit rotates around the rotation axis to selectively move the plurality of types of optometry units to a position facing the eye to be examined.   The composite inspection apparatus according to claim 1, wherein the rotation axis is substantially vertical or substantially parallel to a horizontal direction. A rotation drive unit for rotating the rotation shaft;
A first order determination unit for determining a first inspection order for performing inspection with the plurality of types of optometry units;
Rotation that controls rotational driving of the rotation driving unit based on the first examination order determined by the first order determining unit, and selectively moves the plurality of types of optometry units to the opposing positions in the first examination order. A drive control unit;
A combined inspection apparatus according to claim 1 or 2. A unit identification unit for identifying types of the plurality of types of optometry units held in the rotation unit;
The combined inspection apparatus according to claim 3, wherein the rotation drive control unit performs the rotation drive control based on an identification result of the unit identification unit and the first inspection order determined by the first order determination unit. The rotating unit has a plurality of unit holding portions that respectively hold the plurality of types of optometry units,
The combined inspection apparatus according to claim 3, wherein the first order determination unit determines the first inspection order based on a holding unit order in which a plurality of the unit holding units provided in the rotating unit is previously ordered.   The rotation unit includes a first axis parallel to the rotation axis, a second axis orthogonal to the first axis and parallel to the eye width direction of the eye to be examined, and both the first axis and the second axis. The combined inspection apparatus according to claim 1, further comprising a unit moving unit that moves in a three-axis direction including a third axis orthogonal to the axis. The position of the eye to be examined is detected from the position of the first optometry unit that is positioned at the opposite position among the plurality of types of optometry units and that is adjusted with respect to the eye to be examined. An eye position detection unit to be examined;
A working distance acquisition unit for acquiring a working distance for each of the plurality of types of optometry units with respect to the eye to be examined;
When the second optometry unit different from the first optometry unit is moved to the facing position among the plurality of types of optometry units as the rotation unit rotates, the detected eye position detection unit detects the detected object. A position determining unit that determines a position of the second optometry unit in the three-axis direction with respect to the eye to be examined based on the position of the optometry and the working distance acquired by the working distance acquisition unit;
When the second optometry unit is moved toward the facing position along with the rotation of the rotation unit, the rotation angle of the rotation unit and the position in the triaxial direction determined by the position determination unit A unit movement control unit that controls the unit movement unit to adjust the position of the second optometry unit;
A combined inspection apparatus according to claim 6. A second order determination unit that determines a second examination order indicating a first eye to be examined first and a second eye to be examined later in the eye to be examined for each of the plurality of types of optometry units;
The unit movement control unit controls the unit moving unit based on the second examination order determined by the second order determination unit, and the first eye examination unit examines the first eye. The composite inspection apparatus according to claim 7, which is sequentially moved to a position and a second eye inspection position for inspecting the second eye. A rotation drive unit for rotating the rotation shaft;
When the first optometry unit having a projection protruding toward the eye to be examined is moved from the first eye examination position to the second eye examination position by the unit moving unit, the rotation driving unit is controlled. Retraction control for rotating the rotation unit in a direction in which the protrusion is retracted from the subject's nose, and after the retraction control, the rotation unit is rotated to a position where the protrusion is opposed to the second eye. A collision avoidance control unit for executing rotation control,
A combined inspection apparatus according to claim 8. The plurality of types of optometry units are hand-held optometry apparatuses having a handle portion that is held by an examiner,
The combined inspection apparatus according to claim 1, wherein the rotating unit detachably holds the handle part. An analysis unit that analyzes an output result output from the first optometry unit moved to the opposite position among the plurality of types of optometry units, and obtains an examination result of the eye characteristics by the first optometry unit;
A display unit for displaying a test result of the eye characteristic obtained by the analysis unit;
The combined inspection apparatus according to claim 1, comprising:

Images