JP2021153672A - Ophthalmologic apparatus - Google Patents

Abstract

To provide an ophthalmologic apparatus capable of suppressing an impact of heat and an impact of dust or the like on an acquisition optical system.SOLUTION: An ophthalmologic apparatus 10 includes: an acquisition optical system (30,40) for acquiring information on an eye E to be examined; a control unit 21 for controlling the acquisition optical system; a housing 51 for storing the acquisition optical system and the control unit 21; an optical partition body 52 for sealing and storing the acquisition optical system inside the housing 51; a heating partition body 53 disposed spaced from the optical partition body 52 inside the housing 51, which stores a heating member 54 in the acquisition optical system and the control unit 21; and an exhaust heat mechanism 60 for discharging the heat of the heating partition body 53 outside the housing 51.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to ophthalmic devices.

Conventionally, an ophthalmic apparatus provided with an acquisition optical system for acquiring eye information of an eye to be inspected has been known.

Some such ophthalmic devices are considered to suppress the influence of heat on the acquired optical system (see, for example, Patent Document 1). In this conventional ophthalmic apparatus, the light source of the acquisition optical system, the acquisition optical system, and the control unit are stored in separate storage units, and each storage unit is spatially separated by a spacer to provide acquisition. It suppresses the optical system from being affected by heat from the light source and control unit.

Japanese Patent No. 2013-090903

By the way, in the acquisition optical system, since the light source and the control unit individually provided in the storage unit generate heat, the surrounding storage units become hot, and the influence of heat even if they are separated by simply partitioning them. There is a risk of receiving. Further, in the acquisition optical system, if dust or the like enters, it affects the light conduction.

The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide an ophthalmic apparatus capable of suppressing the influence of heat on the acquired optical system and the influence of dust and the like.

In order to solve the above-mentioned problems, the ophthalmic apparatus of the present disclosure includes an acquisition optical system for acquiring information on the eye to be inspected, a control unit for controlling the acquisition optical system, and the acquisition optical system and the control unit. The acquisition optical is arranged inside the housing, the optical partition that hermetically houses the acquisition optical system, and the optical partition that is spaced inside the housing. It is characterized by including a heat generating compartment for accommodating a heat generating member in the system and the control unit, and a heat exhaust mechanism for discharging the heat of the heat generating compartment to the outside of the housing.

According to the ophthalmic apparatus of the present disclosure, the influence of heat on the acquired optical system and the influence of dust and the like can be suppressed.

It is explanatory drawing which shows the whole structure of the ophthalmic apparatus of Example 1 as an example of the ophthalmic apparatus which concerns on this disclosure. It is a block diagram which shows the functional structure of an ophthalmic apparatus. It is explanatory drawing which shows the appearance that the optical partition body and the heat generation partition body were provided in the housing in the head part of an ophthalmic apparatus. It is explanatory drawing which shows in the cross section obtained along the line I-I of FIG.

Hereinafter, Example 1 of the ophthalmic apparatus 10 as an embodiment of the ophthalmic apparatus according to the present disclosure will be described with reference to FIGS. 1 to 4.

The ophthalmic apparatus 10 according to the present disclosure acquires eye information of the eye to be inspected E. In the following, when viewed from the subject, the left-right direction is the X direction, the vertical direction (vertical direction) is the Y direction, and the directions orthogonal to the X direction and the Y direction (the depth direction of the head portion 14 (the subject side). The front side)) is in the Z direction.

As shown in FIG. 1, the ophthalmic apparatus 10 includes a base 11, a drive unit 12 (see FIG. 2), a gantry 13, a head unit 14, a jaw receiving unit 15, a forehead portion 16, an operation unit 17, and a display unit 18. Have. In the ophthalmic apparatus 10, a gantry 13 is provided on the base 11 via a drive unit 12, and the gantry 13 can be moved in the front-back and left-right directions with respect to the base 11 by the drive unit 12. The gantry 13 is provided with a head unit 14 that houses a control unit 21 and an eye information acquisition unit 22, which will be described later. The head portion 14 can be moved in the vertical direction by the drive portion 12. The base 11 is provided with a jaw receiving portion 15 and a forehead portion 16 for fixing the position of the subject (patient)'s face, that is, the eye E to be inspected with respect to the head portion 14 at the time of measurement. The chin receiving portion 15 serves as a place on which the subject rests his chin, and the forehead portion 16 serves as a place on which the subject addresses the forehead, and is movable in the vertical direction with respect to the base 11. In this ophthalmic apparatus 10, the subject is inspecting, observing, photographing, etc., the eye E to be inspected, with the forehead in contact with the forehead portion 16 and the chin resting on the chin receiving portion 15 and facing the head portion 14. It is supposed to be done.

The operation unit 17 allows the examiner or the subject to operate the ophthalmic apparatus 10, that is, the operation, setting, and the like of the jaw receiving unit 15, and the eye information acquisition unit 22, which will be described later. The operation unit 17 of the first embodiment has an operation lever provided on the gantry 13 and capable of tilting operation, and the operation lever makes the head unit 14 (eye information acquisition unit 22) three-dimensional with respect to the base 11. It can be moved in a direction. Further, the operation unit 17 has a software key displayed on the display unit 18 (the display surface 18a thereof), although not shown, and the software key is used to align the eye E to be inspected, set various examination conditions, and display the display surface 18a. It is possible to execute various operations such as adjustment of. The operation unit 17 may also have various buttons provided around the operation lever and the vicinity of the display unit 18, and may be configured by an input device such as a keyboard or a mouse, for example.

The display unit 18 is provided on the head unit 14, and is configured as an example by a liquid crystal display device (LCD monitor) to be a touch panel type display screen. Under the control of the control unit 21, which will be described later, the display unit 18 displays images such as an anterior eye portion image of the eye to be inspected E and an OCT measurement image based on image data from the eye information acquisition unit 22, and the eye information acquisition unit 22. Various inspection information (inspector information, inspection conditions, inspection results, measurement images, etc.) and software keys as the operation unit 17 are appropriately displayed. The display unit 18 of the first embodiment is rotatably supported by the head unit 14 via the rotation support mechanism unit 18b, and the orientation of the display surface 18a can be changed, for example, the display surface 18a is placed on the subject side. It is possible to turn the display surface 18a sideways (X direction).

As shown in FIG. 2, the ophthalmic apparatus 10 includes a control unit 21 that controls each unit in an integrated manner. A drive unit 12, a jaw receiving unit 15, an operation unit 17, a display unit 18, a storage unit 19, an eye information acquisition unit 22, and a blower 63, which will be described later, are connected to the control unit 21. The control unit 21 expands the program stored in the storage unit 19 or the built-in internal memory 21a on, for example, a RAM (Random Access Memory), and appropriately responds to an operation on the operation unit 17 or the like in response to an operation on the operation unit 17 or the like. 12, the jaw receiving unit 15, the display unit 18, the eye information acquisition unit 22, and the blower 63) are collectively controlled. In the first embodiment, the internal memory 21a is composed of a RAM or the like, and the storage unit 19 is composed of a ROM (Read Only Memory), an EEPROM (Electrically Erasable Programmable ROM) or the like.

The control unit 21 is connected to the light source of the optical system for measurement, the light source of the optical system for alignment, and sensors in the eye information acquisition unit 22, and controls them as appropriate. The control unit 21 is connected to the operating units of the optical system required for measurement in the eye information acquisition unit 22, and drives (including movement) them as appropriate. In the ophthalmic apparatus 10, electric power is supplied to the control unit 21 from a commercial power source, and the control unit 21 supplies electric power to the drive unit 12, the jaw receiving unit 15, the display unit 18, the eye information acquisition unit 22, and the blower 63. In addition to the above configuration, the ophthalmic apparatus 10 is appropriately provided with a printer that prints the measurement result in response to a measurement completion signal or an instruction from the measurer, and an output unit that outputs the measurement result to an external memory or a server.

The head unit 14 is provided with an eye information acquisition unit 22 for acquiring eye information of the eye to be inspected E. The eye information includes an image of the eye E to be inspected (measured image), an image of the fundus of the eye to be inspected E (measured image), a tomographic image of the retina of the eye to be inspected E (measured image), and a corneal endothelial image of the eye to be inspected E. (Measured image), the refractive force of the eye to be inspected E, the shape of the cornea of the eye to be inspected E, the intraocular pressure of the eye to be inspected E, and the like. The eye information acquisition unit 22 is capable of performing at least one of subjective examination and objective measurement. The subjective test is a measurement method for acquiring information on the eye E to be examined by using the response from the subject. The subjective test includes a distance test, a near test, a contrast test, a glare test, and other subjective refraction measurements, and a visual field test and the like. Further, the objective measurement is a measurement method for acquiring information on the eye E to be inspected mainly by using a physical method without referring to the response from the subject. Objective measurement includes measurement for acquiring the characteristics of the eye to be inspected and photographing for acquiring an image of the eye to be inspected. Objective measurement includes objective refraction measurement, corneal shape measurement, intraocular pressure measurement, fundus photography, optical interference measurement and the like.

The eye information acquisition unit 22 captures a fundus camera that captures an image of the fundus, a tomography device (OCT) that captures a tomographic image of the retina, and a corneal endothelial image in order to perform each of the above subjective tests and objective measurements. A specular microscope, a refractometer or wavefront sensor for measuring refractive power, a keratometer for measuring corneal shape, a tonometer for measuring intraocular pressure, etc. are configured alone or in combination. The eye information acquisition unit 22 of the first embodiment captures a reflex measurement optical system 30 (refractometer) for measuring the refractive power and a tomographic image of the retina as an example of the acquisition optical system for acquiring the information of the eye E to be inspected. It is configured by combining with the OCT optical system 40 (tomography device).

The reflex measurement optical system 30 projects a measurement luminous flux onto the fundus of the eye E to be inspected by the reflex measurement projection system 31, and acquires the measurement luminous flux (the reflected luminous flux) reflected by the reflex measurement light receiving system 32 on the fundus as a measurement ring image. By doing so, the optical refractive power of the eye E to be inspected is measured. The reflex measurement projection system 31 has a reflex measurement light source 31a which is a high-luminance light source (for example, an SLD (Super Luminescent Diode) light source), and the light from the reflex measurement light source 31a is converted into a ring-shaped measurement luminous flux by various optical elements, and the measurement thereof is performed. The luminous flux is projected onto the eye E to be examined from the objective lens 31b (see FIG. 1 and the like). The reflex measurement light receiving system 32 forms a ring-shaped return light of the measurement luminous flux from the fundus on the image pickup surface of the image pickup device 32a via various optical elements. The image sensor 32a takes an image at a predetermined rate and outputs the signal (video signal) to the control unit 21. The control unit 21 calculates the refractive power value of the eye E to be inspected including the spherical power, the astigmatic power, the astigmatic axis angle, and the like by performing a known calculation based on the output from the image sensor 32a.

The OCT optical system 40 performs OCT (Optical Coherence Tomography) measurement. The OCT optical system 40 shares a part of the optical path with the reflex measurement optical system 30, and emits the measurement light from the common objective lens 31b to the eye E to be inspected. The OCT optical system 40 is connected to the OCT unit 41. The OCT unit 41 divides the low coherence light from the OCT light source 41a into a reference light and a measurement light, and outputs the measurement light to the OCT optical system 40. The OCT optical system 40 guides the measurement light from the OCT unit 41 to the optical scanner 40a via various optical elements, and the optical scanner 40a deflects and deflects the measurement light one-dimensionally or two-dimensionally. Light is refracted by the objective lens 31b and irradiated to, for example, the fundus of the eye. The measurement light is scattered (including reflection) at various depth positions of the fundus. The OCT optical system 40 guides the backscattered light of the measurement light by the fundus to the OCT unit 41 by traveling in the same path as the outward path in the opposite direction. The OCT unit 41 generates interference light by interfering the reference light whose amount of light and polarization state are appropriately adjusted via the reference optical path and the measurement light passing through the eye E (fundus) to be inspected, and disperses the light by a diffraction grating. After (spectral decomposition), it is projected onto the light receiving surface of the detector 41b. The detector 41b detects each spectral component of the dispersed interference light, generates a detection signal, and outputs the detection signal to the control unit 21. As a result, the control unit 21 performs OCT measurement for acquiring the measurement image of OCT.

As shown in FIGS. 1, 3, and 4, the head unit 14 includes a control unit 21 and an eye information acquisition unit 22 (ref measurement optical system 30, OCT optical system 40) housed in a housing 51. .. The housing 51 forms the outer shape of the head portion 14. The housing 51 houses the optical compartment 52 and the heat generating compartment 53. The optical compartment 52 partitions from other members in the housing 51 by hermetically accommodating the ref measurement optical system 30 and the OCT optical system 40 as the acquisition optical system. The optical compartment 52 is located on the subject side of the head portion 14, that is, on the side where the jaw receiving portion 15 and the forehead portion 16 are provided. The sealing in the optical compartment 52 is at least enough to prevent dust from entering. The optical compartment 52 exposes the objective lens 31b shared by the reflex measurement optical system 30 and the OCT optical system 40, and the periphery thereof is sealed.

The heat-generating partition 53 is for partitioning from other members in the housing 51 by accommodating the heat-generating member 54 in the reflex measurement optical system 30, the OCT optical system 40, and the control unit 21 as the acquisition optical system. be. The heat generating member 54 is a member that generates heat in the acquisition optical system (ref measurement optical system 30 and OCT optical system 40) and the control unit 21 in association with an operation or the like. Such members include a reflex measurement light source 31a, an image pickup element 32a, an optical scanner 40a, an OCT light source 41a, a detector 41b, and an optical fiber that guides light in the acquisition optical system (ref measurement optical system 30 and OCT optical system 40). , Various control boards and the like constituting the control unit 21 can be mentioned. Examples of the various control boards include a motherboard 21b which is a main electronic circuit board in the control unit 21, a ref measurement light source 31a, an image sensor 32a, an optical scanner 40a, an OCT light source 41a, a detector 41b, and the like. There is a circuit board.

In the ophthalmic apparatus 10 of the first embodiment, as shown in FIG. 4, the motherboard 21b, which generates a large amount of heat, and the control board 40b for driving the optical scanner 40a are the heat generating members 54. In the first embodiment, in the heat generating member 54, the motherboard 21b having a larger heat generating amount is referred to as the first heat generating member 54A, and the control board 40b having a smaller heat generating amount is referred to as the second heat generating member 54B. Then, in the heat generating compartment 53, the first heat generating member 54A is provided on the lower side in the vertical direction, and the second heat generating member 54B is provided on the upper side. The heat generating member 54 may be appropriately set according to the configuration of the acquisition optical system and the control unit 21, and is not limited to the configuration of the first embodiment.

In the ophthalmic apparatus 10 of the first embodiment, among the above-mentioned heat-generating members, those that are not the heat-generating member 54, that is, those that are not housed in the heat-generating compartment 53, are sideways (X direction) of the optical compartment 52. ) Is provided in the side installation portion 55 (see FIG. 3). These members are not housed in the heat generating compartment 53 because the influence on the acquisition optical system is extremely small even if heat is generated. In the ophthalmic apparatus 10, the housing 51 is provided with a vent for taking in external air at a position facing the heat generating compartment 53, and the heat generated in the side installation portion 55 affects the acquisition optical system. I'm preventing that. Of the members that generate heat, those that are not used as the heat-generating member 54 have a small amount of heat generation and are extremely small in the influence of heat. It is not limited to the configuration.

The heat generating compartment 53 is provided in the housing 51 at intervals from the optical compartment 52, and is located on the examiner side of the head portion 14. The heat generating compartment 53 is a cable in which the motherboard 21b and the control substrate 40b, which are the heat generating members 54, are not shown at the corresponding locations in the acquisition optical system (ref measurement optical system 30 and OCT optical system 40) of the optical compartment 52. It is connected by. This cable is sealed at least at a portion that enters and exits the optical compartment 52 and the heat generating compartment 53, and particularly at a portion that enters and exits the optical compartment 52, the cable is sealed to the extent that dust does not enter and exit. ..

The heat generating compartment 53 is provided with a heat exhaust mechanism 60 that discharges internal heat to the outside of the housing 51. The heat exhaust mechanism 60 is provided to cool the heat generating member 54 provided in the heat generating compartment 53, and has an introduction port 61, a discharge port 62, and a blower 63.

The introduction port 61 is a place where air is introduced from the outside of the housing 51 into the inside of the heat generating compartment 53, and connects the outside of the housing 51 with the inside of the heat generating compartment 53. The opening area of the introduction port 61 is larger than that of the discharge port 62, and in the first embodiment, the introduction port 61 is provided near the lower end of the heat generating compartment 53 and extends upward from the discharge port 62. The introduction port 61 includes a housing opening 61a that opens the housing 51, a compartment opening 61b that opens the heat generating compartment 53, and a passage 61c that connects the housing opening 61a and the compartment opening 61b. Have. The housing opening 61a penetrates the side surface (the surface located in the X direction) of the housing 51. The compartment opening 61b penetrates a portion of the heat generating compartment 53 facing the housing opening 61a in the X direction. The passage portion 61c is a cylindrical member, is provided so as to bridge the housing opening 61a and the compartment opening 61b, and is sealed between the two openings 61a and 61b.

The discharge port 62 is a place where air is discharged from the inside of the heat generating compartment 53 to the outside of the housing 51, and connects the inside of the heat generating compartment 53 and the outside of the housing 51. In the first embodiment, the discharge port 62 is provided near the lower end of the heat generating compartment 53 and faces the introduction port 61 in the X direction. The discharge port 62 includes a compartment opening 62a that opens the heat generating compartment 53, a housing opening 62b that opens the housing 51, and a passage portion 62c that connects the compartment opening 62a and the housing opening 62b. Have. The compartment opening 62a penetrates the side surface of the heat generating compartment 53 opposite to the compartment opening 61b. The housing opening 62b penetrates a portion of the housing 51 slightly below the position facing the compartment opening 62a in the X direction. The passage portion 62c is a cylindrical member, is provided so as to bridge the partition body opening 62a and the housing opening 62b, and is sealed between the two openings 62a and 62b. The passage portion 62c is inclined so as to go downward toward the outside according to the positional relationship between the compartment opening 62a and the housing opening 62b.

The discharge port 62 of the first embodiment is provided with a blade plate 62d that defines the direction in which air is discharged. The wing plate 62d is a so-called louver in which a plurality of elongated plates (feather plates) are diagonally attached so that the outside is on the bottom. Each blade plate 62d functions as a guide portion for directing the air discharged from the discharge port 62 downward (at least below the horizontal direction) together with the passage portion 62c directed downward. The guide unit may be any as long as it directs the air discharged from the discharge port 62 downward, and is not limited to the configuration of the first embodiment. Further, in the first embodiment, the guide portion is composed of the passage portion 62c and the wing plate 62d facing downward, but the guide portion may be configured only in the direction of the passage portion 62c, and only the wing plate 62d is provided. Also, the direction of the air flow formed by the blower 63 may be directed downward, and the configuration is not limited to the first embodiment.

Therefore, the heat exhaust mechanism 60 forms a ventilation passage 64 from the introduction port 61 through the inside of the heat generating compartment 53 to the discharge port 62. That is, the heat-generating compartment 53 is sealed except for the introduction port 61 and the discharge port 62 to surround the heat-generating member 54, and has a compartment opening 61b that is a part of the introduction port 61 and a part of the discharge port 62. It has a container shape that communicates with the outside only by the partition opening 62a. As a result, the heat exhaust mechanism 60 makes it possible to form an air flow around the heat generating member 54 housed in the heat generating compartment 53. In order to form this air flow, the heat exhaust mechanism 60 is provided with a blower 63.

The blower 63 forms an air flow from the introduction port 61 to the discharge port 62 in the ventilation passage 64, and is provided in the vicinity of the discharge port 62 in the first embodiment. The blower 63 is appropriately driven under the control of the control unit 21 to form a flow for discharging air from the discharge port 62. Then, in the ventilation passage 64, an air flow from the introduction port 61 to the discharge port 62 is formed. As a result, the heat exhaust mechanism 60 can cool the heat generating member 54.

As described above, the ophthalmic apparatus 10 can measure the refractive power value of the eye E to be inspected and perform OCT measurement by the eye information acquisition unit 22. At that time, since heat is generated in the control unit 21 and the eye information acquisition unit 22, the ophthalmology device 10 drives the blower 63 of the heat exhaust mechanism 60. Then, in the ophthalmic apparatus 10, the air outside the housing 51 is introduced into the heat generating compartment 53 from the introduction port 61, and after circulating inside the heat generating compartment 53, the air from the discharge port 62 to the outside of the housing 51 A flow is formed that is discharged toward. As a result, in the ophthalmic apparatus 10, the heat generating member 54 in the control unit 21 and the eye information acquisition unit 22 can be effectively cooled.

Here, in the conventional ophthalmic apparatus, the light source of the acquisition optical system, the acquisition optical system, and the control unit are stored in separate storage units, and each storage unit is spatially separated by a spacer. However, in conventional ophthalmic devices, the temperature of the storage unit that stores each of them rises due to the heat from the light source and the control unit. There is a risk that the temperature of the storage unit will be raised and the effect of heat will be exerted. Further, in the conventional ophthalmic apparatus, if dust enters the storage portion that stores the acquisition optical system, it may affect the guide of light in the acquisition optical system and hinder the acquisition of appropriate eye information. be.

On the other hand, in the ophthalmic apparatus 10, the ref measurement optical system 30 and the OCT optical system 40 as the acquisition optical system are hermetically housed in the optical compartment 52, and the heat generation member 54 in the acquisition optical system and the control unit 21 is accommodated. It is housed in the heat generating compartment 53. Further, in the ophthalmic apparatus 10, both compartments (52, 53) are provided in the housing 51 at intervals, and the heat exhaust mechanism 60 that discharges the heat inside the heat generating compartment 53 to the outside of the housing 51. Is provided. Therefore, in the ophthalmic apparatus 10, the heat generation compartment 53 is separated from the optical compartment 52 after suppressing the temperature rise of the heat generation compartment 53 by the heat exhaust mechanism 60. Therefore, the conventional ophthalmic apparatus 10 does not exhaust heat. Compared with the ophthalmic equipment of the above, the influence of heat on the acquired optical system can be significantly suppressed. Further, since the ophthalmic apparatus 10 accommodates the optical compartment 52 and the heat generating compartment 53 in the housing 51 and seals the optical compartment 52, the conventional ophthalmic apparatus 10 simply stores the acquired optical system in the storage portion. It is possible to prevent dust from entering the acquisition optical system as compared with the ophthalmic apparatus of.

Further, since the ophthalmic apparatus 10 is provided with the optical compartment 52 on the subject side and the heat generating compartment 53 on the opposite side, that is, at the position farthest from the subject in the housing 51, the heat generating member 54 It is possible to prevent the subject from being uncomfortable due to the heat from the subject.

Further, the ophthalmic apparatus 10 communicates the heat-generating compartment 53 to the outside through the compartment opening 61b compartment opening 62a while surrounding the heat-generating member 54, that is, only the compartment opening 61b compartment opening 62a. It has an open container shape. Therefore, in the ophthalmic apparatus 10, since the heat exhaust mechanism 60 discharges all the air introduced from the introduction port 61 from the discharge port 62, the ophthalmic device 10 proceeds from the introduction port 61 through the heat generating compartment 53 to the discharge port 62. An air flow can be formed, and the heat generating member 54 can be efficiently cooled.

In addition, in the ophthalmic apparatus 10, the introduction port 61 is made larger than the discharge port 62 in the heat exhaust mechanism 60. Therefore, the ophthalmic apparatus 10 can form an air flow in which the air introduced from the introduction port 61 goes around the heat generating compartment 53 and then proceeds to the discharge port 62. As a result, the ophthalmic apparatus 10 can evenly cool the heat generating member 54 housed in the heat generating compartment 53. In addition, in the ophthalmic apparatus 10, since the introduction port 61 and the discharge port 62 are opposed to each other in the X direction, the air flow from the introduction port 61 to the discharge port 62 can be made smooth, and the heat generating member 54 can be made more. Can be cooled efficiently.

In particular, in the ophthalmic apparatus 10 of the first embodiment, in the heat generating compartment 53, the introduction port 61 and the discharge port 62 are provided near the lower end, and the introduction port 61 extends upward from the discharge port 62, and by the lower side. A first heat generating member 54A having a large calorific value is provided, and a second heat generating member 54B is provided on the upper side. Therefore, the ophthalmic apparatus 10 wraps around the heat generating compartment 53 from the introduction port 61 while forming a linear air flow from the introduction port 61 to the discharge port 62, and then proceeds to the discharge port 62. An air flow can be formed. As a result, the ophthalmic apparatus 10 can more efficiently cool the first heat generating member 54A having a large calorific value, and can also cool the second heat generating member 54B having a smaller calorific value. In particular, since the ophthalmic apparatus 10 is provided with the blower 63 in the vicinity of the discharge port 62, it is possible to easily form the above-mentioned air flow.

In the ophthalmic apparatus 10, at the discharge port 62, the passage portion 62c is directed downward and the wing plate 62d is provided, so that the discharged air can be directed downward. Therefore, the ophthalmic apparatus 10 can prevent blowing hot air toward the face of a person (examiner, subject, etc.) even when there is a person (examiner, subject, etc.) in the vicinity, and prevents discomfort. be able to. This means that, in particular, when the hot air goes toward the eye E to be inspected, the drying is promoted, and the eye E to be inspected becomes a dry state different from the usual one, and it becomes difficult to properly acquire the state of the normal state. It is more effective because there is a risk.

The ophthalmic apparatus 10 of Example 1 of the ophthalmic apparatus according to the present disclosure can obtain the following effects.

In the ophthalmic apparatus 10, the acquisition optical system (ref measurement optical system 30, OCT optical system 40) is hermetically housed in the optical compartment 52, and the heat generation member 54 in the acquisition optical system and the control unit 21 is housed in the heat generation compartment 53. It is housed. Further, the ophthalmic apparatus 10 is provided with both compartments (52, 53) at intervals in the housing 51, and a heat exhaust mechanism 60 for discharging the heat inside the heat generating compartment 53 to the outside of the housing 51. Is provided. Therefore, the ophthalmic apparatus 10 can significantly suppress the influence of heat on the acquired optical system as compared with the conventional ophthalmic apparatus that does not exhaust heat, and the conventional ophthalmic apparatus 10 simply stores the acquired optical system in the storage unit. It is possible to prevent dust from entering the acquisition optical system as compared with the ophthalmic apparatus of.

Further, in the ophthalmic apparatus 10, the heat exhaust mechanism 60 has an introduction port 61 that leads from the outside of the housing 51 into the heat generating compartment 53, and a discharge port 62 that leads from the heat generating compartment 53 to the outside of the housing 51. It has a blower 63 that forms a flow of air from the introduction port 61 to the discharge port 62. Then, the ophthalmic apparatus 10 surrounds the heat-generating compartment 53 with the heat-generating member 54, and has an opening (partition opening 61b) that is a part of the introduction port 61 and an opening (a part of the discharge port 62) that is a part of the discharge port 62. It is assumed that the compartment opening 62a) is connected to the outside. Therefore, by driving the blower 63, the ophthalmic apparatus 10 can circulate the air taken in from the introduction port 61 into the heat generation section 53 and proceed to the discharge port 62, and the heat generation section has a simple configuration. The heat generating member 54 housed in the body 53 can be cooled.

Further, in the ophthalmic apparatus 10, the introduction port 61 has an opening area larger than that of the discharge port 62. Therefore, the ophthalmic apparatus 10 can allow the air taken in from the introduction port 61 to proceed to the discharge port 62 while circulating the air taken in through the entire heat generation compartment 53, and evenly cools the heat generation member 54 housed in the heat generation compartment 53. can.

In the ophthalmic apparatus 10, the discharge port 62 discharges the air from the heat generating compartment 53 downward. Therefore, the ophthalmic apparatus 10 can prevent blowing hot air toward the faces of people in the vicinity and can prevent discomfort.

In the ophthalmic apparatus 10, the heat generating compartment 53 is positioned in the housing 51 on the side opposite to the eye E side to be inspected with respect to the optical compartment 52. Therefore, the ophthalmic apparatus 10 can prevent the subject from being uncomfortable due to the heat from the heat generating member 54.

Therefore, in the ophthalmic apparatus 10 as an embodiment of the ophthalmic apparatus according to the present disclosure, it is possible to suppress the influence of heat and the influence of dust on the acquisition optical system (ref measurement optical system 30, OCT optical system 40). ..

Although the ophthalmic apparatus of the present disclosure has been described based on the first embodiment, the specific configuration is not limited to the first embodiment and does not deviate from the gist of the invention according to each claim in the claims. As long as the design is changed or added, it is permissible.

For example, in Example 1, the eye information acquisition unit 22 having the above configuration is used. However, the acquisition unit of the present disclosure can be applied as long as it has an acquisition optical system capable of acquiring information on the eye E to be inspected, and is not limited to the configuration of the first embodiment.

Further, in the first embodiment, the heat generating compartment 53 is positioned in the housing 51 on the side opposite to the eye E side of the optical compartment 52. However, if the heat generating compartment 53 is a position surrounding the optical compartment 52 in the horizontal direction of the optical compartment 52, that is, in the horizontal direction, and excludes the eye E (examinee) side, the optical compartment 52 It may be provided on the side (X direction) of the above, and is not limited to the configuration of the first embodiment. Further, the heat generating compartment 53 may be located above the optical compartment 52, and is not limited to the configuration of the first embodiment.

Further, in the first embodiment, the heat exhaust mechanism 60 has the above-described configuration. However, if the heat exhaust mechanism 60 cools the heat generating member 54 in the heat generating compartment 53 by discharging the heat of the heat generating compartment 53 to the outside of the housing 51 by utilizing the flow of air. The shapes and positions of the introduction port 61 and the discharge port 62 may be appropriately set, and are not limited to the configuration of the first embodiment.

In the first embodiment, in the heat exhaust mechanism 60, the blower 63 is provided in the vicinity of the discharge port 62. However, if the blower 63 forms an air flow from the introduction port 61 to the discharge port 62 in the heat generating compartment 53, the position and configuration of the blower 63 may be appropriately set, and the configuration of the first embodiment may be used. Not limited.

10 Ophthalmic equipment 21 Control unit 30 (as an example of acquisition optical system) Ref measurement optical system 40 (as an example of acquisition optical system) OCT optical system 51 Housing 52 Optical compartment 53 Heat generation compartment 54 Heat generation member 60 Exhaust heat Mechanism 61 Inlet 61b (as an example of an opening) Partition opening 62 Outlet 62a (as an example of an opening) Partition opening 63 Blower E Eyes to be inspected

Claims (6)

An acquisition optical system that acquires information on the eye to be inspected,
A control unit that controls the acquisition optical system and
A housing that houses the acquisition optical system and the control unit,
An optical compartment that seals and houses the acquisition optical system inside the housing, and
A heat-generating compartment that is arranged inside the housing at a distance from the optical compartment and houses the heat-generating member in the acquisition optical system and the control unit.
An ophthalmic apparatus comprising: a heat exhaust mechanism for discharging the heat of the heat generating compartment to the outside of the housing. The heat exhaust mechanism includes an introduction port that leads from the outside of the housing to the inside of the heat generating compartment, a discharge port that leads from the heat generation compartment to the outside of the housing, and air from the introduction port to the discharge port. With a blower that forms the flow of
The claim is characterized in that the heat-generating compartment surrounds the heat-generating member and is communicated to the outside by an opening that is a part of the introduction port and an opening that is a part of the discharge port. The ophthalmic apparatus according to 1. The ophthalmic apparatus according to claim 2, wherein the introduction port has an opening area larger than that of the discharge port. The ophthalmic apparatus according to claim 2 or 3, wherein the discharge port discharges air from the heat generating compartment downward. Claims 1 to 4, wherein the heat-generating compartment is located in the housing in a horizontal direction excluding the eye-examined side of the optical compartment, or above the optical compartment. The ophthalmic apparatus according to any one of the above. The ophthalmic apparatus according to claim 5, wherein the heat-generating compartment is located in the housing on the side of the optical compartment opposite to the side to be inspected.

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