JP7444666B2 - ophthalmology equipment - Google Patents

Description

The present disclosure relates to ophthalmological devices.

BACKGROUND ART Conventionally, ophthalmological apparatuses have been known that are provided with an acquisition optical system that acquires eye information of a subject's eye.

Some such ophthalmological apparatuses are designed to suppress the influence of heat on the acquisition optical system (for example, see Patent Document 1). This conventional ophthalmological apparatus stores the light source of the acquisition optical system, the acquisition optical system, and the control unit in separate storage parts, and each storage part is spatially separated by a spacer, so that the acquisition This suppresses the influence of heat from the light source and control unit on the optical system.

Patent No. 2013-90903

By the way, in the acquisition optical system, each of the light sources and control parts installed in individual housing units generates heat, so each surrounding housing unit becomes hot, and if you simply divide them into sections, even if they are separated, the effects of heat will be greater. There is a risk of receiving Furthermore, if dust or the like enters the acquisition optical system, it will affect the light guiding.

The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide an ophthalmologic apparatus that can suppress the effects of heat and dust on the acquisition optical system.

In order to solve the above-mentioned problems, an ophthalmologic apparatus of the present disclosure includes an acquisition optical system that acquires information about a subject's eye, a control unit that controls the acquisition optical system, and a housing that accommodates the acquisition optical system and the control unit. an optical compartment that seals and accommodates the acquisition optical system inside the housing, and an optical compartment that is spaced apart from the optical compartment inside the housing, The present invention is characterized by comprising: a heat-generating section that accommodates a heat-generating member in the system and the control section; and a heat exhaust mechanism that discharges heat from the heat-generating section to the outside of the casing.

According to the ophthalmologic apparatus of the present disclosure, it is possible to suppress the influence of heat and the influence of dust and the like on the acquisition optical system.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing the overall configuration of an ophthalmologic apparatus according to a first embodiment as an example of an ophthalmologic apparatus according to the present disclosure. FIG. 2 is a block diagram showing the functional configuration of an ophthalmologic apparatus. FIG. 2 is an explanatory diagram showing a state in which an optical partition and a heat generating partition are provided within a housing in a head portion of an ophthalmologic apparatus. FIG. 2 is an explanatory diagram showing a cross section taken along line II in FIG. 1;

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

The ophthalmological apparatus 10 according to the present disclosure acquires eye information of the eye E to be examined. In the following, when viewed from the subject, the left and right direction is the X direction, the up and down direction (vertical direction) is the Y direction, and the direction perpendicular to the X and Y directions (the depth direction of the head section 14 (the subject side) )) is the Z direction.

As shown in FIG. 1, the ophthalmologic apparatus 10 includes a base 11, a drive section 12 (see FIG. 2), a pedestal 13, a head section 14, a chin rest 15, a forehead rest 16, an operation section 17, and a display section 18. have In the ophthalmological apparatus 10, a pedestal 13 is provided on a base 11 via a drive unit 12, and the pedestal 13 is movable in the front, back, left and right directions with respect to the base 11 by the drive unit 12. The pedestal 13 is provided with a head section 14 that accommodates a control section 21 and an eye information acquisition section 22, which will be described later. The head section 14 is movable in the vertical direction by the drive section 12. The base 11 is provided with a chin rest 15 and a forehead rest 16 that fix the position of the subject's (patient's) face, that is, the subject's eyes E, with respect to the head 14 during measurement. The chin rest 15 is a place on which the subject rests their chin, and the forehead rest 16 is a place on which the subject rests their forehead, and is movable in the vertical direction with respect to the base 11. In this ophthalmological apparatus 10, the subject's eye E is examined, observed, photographed, etc. while the subject faces the head part 14 with his forehead in contact with the forehead rest part 16 and his chin rested on the chin rest part 15. It is supposed to be done.

The operation section 17 is used by the examiner or the subject to operate the operation, settings, etc. of the ophthalmological apparatus 10, that is, the chin rest section 15 and the eye information acquisition section 22, which will be described later. The operation unit 17 of the first embodiment has an operation lever that is provided on the pedestal 13 and can be tilted. can be moved in the direction. Although not shown, the operation unit 17 has software keys displayed on the display unit 18 (its display surface 18a), and the software keys allow alignment for the eye E, setting of various test conditions, and display surface 18a. It is possible to execute various operations such as adjusting the Note that the operating section 17 may also include various buttons provided around the operating lever or the display section 18, and may be configured with an input device such as a keyboard or a mouse.

The display unit 18 is provided in the head unit 14, and is configured with a liquid crystal display device (LCD monitor) as a touch panel type display screen, for example. The display unit 18 displays images such as an anterior segment image and an OCT measurement image of the eye E based on image data from the eye information acquisition unit 22 and images from the eye information acquisition unit 22 under the control of a control unit 21 to be described later. Various examination information (examiner information, examination conditions, examination results, measurement images, etc.), software keys as the operation section 17, etc. are displayed as appropriate. The display section 18 of Example 1 is rotatably supported by the head section 14 via a rotation support mechanism section 18b, and the direction of the display surface 18a can be changed, for example, the display surface 18a can be moved toward the subject. It is possible to turn the display surface 18a sideways (in the X direction).

As shown in FIG. 2, the ophthalmologic apparatus 10 includes a control section 21 that centrally controls each section. The control section 21 is connected to a drive section 12, a chinrest section 15, an operation section 17, a display section 18, a storage section 19, an eye information acquisition section 22, and a blower 63, which will be described later. The control unit 21 deploys a program stored in the storage unit 19 or a built-in internal memory 21a on, for example, a RAM (Random Access Memory), and controls the ophthalmological apparatus 10 (drive unit) in response to an operation on the operation unit 17 as appropriate. 12, the chin rest part 15, the display part 18, the eye information acquisition part 22, and the blower 63). In the first embodiment, the internal memory 21a is composed of a RAM or the like, and the storage section 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 measurement optical system, the light source of the alignment optical system, and sensors in the eye information acquisition unit 22, and controls them as appropriate. The control unit 21 is connected to operating units of the optical system necessary for measurement in the eye information acquisition unit 22, and drives (including movement) them as appropriate. In the ophthalmologic apparatus 10 , power is supplied from a commercial power supply to the control unit 21 , and the control unit 21 supplies power to the drive unit 12 , the chin rest 15 , the display unit 18 , the eye information acquisition unit 22 , and the blower 63 . In addition to the above-described configuration, the ophthalmologic apparatus 10 is appropriately provided with a printer that prints the measurement results in response to a measurement completion signal or an instruction from the measurer, and an output unit that outputs the measurement results to an external memory or server.

The head section 14 is provided with an eye information acquisition section 22 that acquires eye information of the eye E to be examined. The eye information includes an image of the eye E to be examined (measurement image), an image of the fundus of the eye E to be examined (measurement image), a tomographic image of the retina of the eye E to be examined (measurement image), and an image of the corneal endothelium of the eye E to be examined. (measured image), the refractive power of the eye E to be examined, the shape of the cornea of the eye E to be examined, the intraocular pressure of the eye E to be examined, etc. The eye information acquisition unit 22 is capable of performing at least one of a subjective test and an objective measurement. The subjective test is a measurement technique that acquires information about the eye E to be examined using responses from the examinee. Subjective tests include subjective refraction measurements such as distance tests, near tests, contrast tests, and glare tests, and visual field tests. Furthermore, objective measurement is a measurement method that acquires information about the eye E to be examined mainly using a physical method without referring to a response from the examinee. The objective measurement includes measurement for acquiring characteristics of the eye to be examined and photographing for acquiring an image of the eye to be examined. Objective measurements include objective refraction measurement, corneal topography measurement, intraocular pressure measurement, fundus photography, optical interference measurement, and the like.

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

In the reflex measurement optical system 30, a reflex measurement projection system 31 projects a measurement light flux onto the fundus of the eye E to be examined, and a reflex measurement light receiving system 32 acquires the measurement light flux reflected on the fundus (its reflected light flux) as a measurement ring image. In this way, the eye refractive power of the eye E to be examined is measured. The reflex measurement projection system 31 has a reflex measurement light source 31a that is a high-intensity light source (for example, an SLD (Super Luminescent Diode) light source), and uses various optical elements to convert light from the reflex measurement light source 31a into a ring-shaped measurement light flux, and performs the measurement. A light beam is projected onto the eye E from the objective lens 31b (see FIG. 1, etc.). The reflex measurement light receiving system 32 causes the ring-shaped measurement light flux returned from the fundus to form an image on the imaging surface of the image sensor 32a through various optical elements. The image sensor 32 a captures 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 including the spherical power, astigmatic power, astigmatic axis angle, etc. 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 its optical path with the reflex measurement optical system 30, and emits measurement light to the eye E from a common objective lens 31b. This OCT optical system 40 is connected to an OCT unit 41. The OCT unit 41 splits 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 through various optical elements to the optical scanner 40a, and the optical scanner 40a deflects the measurement light one-dimensionally or two-dimensionally, and performs the deflected measurement. The light is refracted by the objective lens 31b and irradiated onto, for example, the fundus of the eye. The measurement light is scattered (including reflection) at various depth positions in the fundus of the eye. The OCT optical system 40 guides backscattered measurement light from the fundus of the eye to the OCT unit 41 by traveling in the same direction as the outgoing path. The OCT unit 41 generates interference light by interfering the reference light whose light intensity and polarization state have been adjusted appropriately through a reference optical path with the measurement light which has passed through the eye E (fundus) to be examined, and performs spectroscopy using a diffraction grating. After performing (spectral decomposition), it is projected onto the light receiving surface of the detector 41b. The detector 41b detects each spectral component of the separated interference light, generates a detection signal, and outputs this to the control unit 21. Thereby, the control unit 21 performs OCT measurement to obtain an OCT measurement image.

As shown in FIGS. 1, 3, and 4, the head unit 14 includes a control unit 21 and an eye information acquisition unit 22 (reflex measurement optical system 30, OCT optical system 40) housed in a housing 51. . The housing 51 forms the outer shape of the head section 14. The housing 51 accommodates an optical partition 52 and a heat generating partition 53. The optical partition body 52 seals and houses the reflex measurement optical system 30 and the OCT optical system 40 as an acquisition optical system, thereby separating them from other members within the housing 51. The optical partition 52 is located on the subject's side of the head section 14, that is, on the side where the chin rest 15 and the forehead rest 16 are provided. The optical partition 52 is sealed to a degree that at least prevents dust from entering. The optical partition 52 exposes the objective lens 31b that is shared by the reflex measurement optical system 30 and the OCT optical system 40, while its periphery is sealed.

The heat-generating partition body 53 is partitioned from other members within the housing 51 by accommodating the heat-generating member 54 in the reflex measurement optical system 30 as an acquisition optical system, the OCT optical system 40, and the control unit 21. be. The heat generating member 54 is a member that generates heat in the acquisition optical system (the reflex measurement optical system 30 and the OCT optical system 40) and the control unit 21 during operation and the like. Such members include the reflex measurement light source 31a, the image sensor 32a, the optical scanner 40a, the OCT light source 41a, the detector 41b, the optical fiber that guides the light, and the like in the acquisition optical system (the reflex measurement optical system 30 and the OCT optical system 40). , various control boards constituting the control section 21, and the like. The various control boards include, for example, the motherboard 21b which is the main electronic circuit board in the control unit 21, the electronics that drive the reflex measurement light source 31a, the image sensor 32a, the optical scanner 40a, the OCT light source 41a, the detector 41b, etc. There is a circuit board.

In the ophthalmologic apparatus 10 of Example 1, as shown in FIG. 4, the heat generating members 54 are the motherboard 21b, which generates a large amount of heat among the heat generating members, and the control board 40b that drives the optical scanner 40a. In the first embodiment, in this heat generating member 54, the motherboard 21b, which generates a larger amount of heat, is used as the first heat generating member 54A, and the control board 40b, which generates a smaller amount of heat, is used as the second heat generating member 54B. In the heat generating section 53, a first heat generating member 54A is provided on the lower side in the vertical direction, and a second heat generating member 54B is provided on the upper side. Note that 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 ophthalmologic apparatus 10 of Example 1, the heat generating members described above that were not designated as the heat generating members 54, that is, those not housed in the heat generating compartment 53, were placed on the side of the optical compartment 52 (in the X direction). ) is provided in the side installation part 55 (see FIG. 3). These members are not housed in the heat generating section 53 because even if they generate heat, the effect on the acquisition optical system is extremely small. In the ophthalmological apparatus 10, a vent opening for taking in outside air is provided in the housing 51 at a location facing the heat generating partition body 53, so that the heat generated in the side installation part 55 affects the acquisition optical system. It prevents that. It should be noted that the heat generating members that are not included in the heat generating member 54 have a small calorific value and have an extremely small influence of heat, so they may be provided at any arbitrary location in the casing 51. Not limited to configuration.

The heat generating partition 53 is provided within the housing 51 at a distance from the optical partition 52, and is located on the examiner side of the head section 14. This heat-generating section 53 connects the motherboard 21b and control board 40b, which serve as heat-generating members 54, to corresponding locations in the acquisition optical system (reflex measurement optical system 30 and OCT optical system 40) of the optical section 52 using cables (not shown). It is connected by This cable is sealed at least at the points where it goes in and out of the optical partition 52 and the heat generating section 53, and especially at the points where it goes in and out of the optical partition 52, it is sealed to a degree that prevents dust from entering and exiting. .

This heat generating partition body 53 is provided with a heat exhaust mechanism 60 that discharges internal heat to the outside of the casing 51. The heat exhaust mechanism 60 is provided to cool the heat generating member 54 provided in the heat generating partition body 53, and has an inlet 61, an outlet 62, and a blower 63.

The introduction port 61 is a place where air is introduced from the outside of the casing 51 into the inside of the heat generating section 53, and connects the outside of the casing 51 and the inside of the heat generating section 53. The inlet 61 has a larger opening area than the outlet 62, and in the first embodiment is provided near the lower end of the heat generating section 53 and extends upward than the outlet 62. The inlet 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. , has. The housing opening 61a penetrates the side surface (the surface located in the X direction) of the housing 51. The compartment opening 61b passes through a portion of the heat generating compartment 53 that faces the housing opening 61a in the X direction. The passage portion 61c is a cylindrical member, and is provided to span the housing opening 61a and the compartment opening 61b, and is sealed between the openings 61a and 61b.

The exhaust port 62 is a location for discharging air from the inside of the heat generating section 53 to the outside of the casing 51, and connects the inside of the heat generating section 53 and the outside of the casing 51. In the first embodiment, the discharge port 62 is provided near the lower end of the heat generating partition 53 and faces the inlet 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 62c that connects the compartment opening 62a and the housing opening 62b. , has. The compartment opening 62a passes through the side surface of the heat generating compartment 53 opposite to the compartment opening 61b. The housing opening 62b passes through a portion of the housing 51 that is slightly below the position facing the partition opening 62a in the X direction. The passage portion 62c is a cylindrical member, and is provided to span the partition opening 62a and the housing opening 62b, and is sealed between the openings 62a and 62b. The passage portion 62c is inclined downward toward the outside, depending on the positional relationship between the partition opening 62a and the housing opening 62b.

The discharge port 62 of the first embodiment is provided with a wing plate 62d that defines the direction in which air is discharged. The wing board 62d is a so-called louver in which a plurality of elongated boards (wing boards) are attached obliquely so that the outside faces downward. Each blade 62d, together with the downwardly directed passage section 62c, functions as a guide section that directs the air discharged from the exhaust port 62 downward (at least below the horizontal direction). Note that the guide portion is not limited to the configuration of the first embodiment as long as it directs the air discharged from the exhaust port 62 downward. Further, in the first embodiment, the guide section is composed of the downwardly directed passage section 62c and the wing plate 62d, but it may also be composed of only the direction of the passage section 62c, and only the wing plate 62d is provided. Alternatively, 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 path 64 that extends from the inlet 61 through the inside of the heat generating partition 53 to the outlet 62. That is, the heat-generating partition 53 surrounds the heat-generating member 54 with the exception of the inlet 61 and the outlet 62 being sealed. The compartment body is shaped like a container and communicates with the outside only through an opening 62a. Thereby, the heat exhaust mechanism 60 is able to form an air flow around the heat generating member 54 housed in the heat generating partition body 53. In order to form this air flow, the heat exhaust mechanism 60 is provided with a blower 63.

The blower 63 forms a flow of air from the inlet 61 to the outlet 62 in the ventilation path 64, and is provided near the outlet 62 in the first embodiment. The blower 63 is appropriately driven under the control of the control unit 21 to form a flow of air that is discharged from the exhaust port 62 . Then, in the ventilation passage 64, a flow of air from the inlet 61 toward the outlet 62 is formed. Thereby, the heat exhaust mechanism 60 can cool the heat generating member 54.

As described above, this ophthalmologic apparatus 10 can measure the refractive power value of the eye E to be examined and perform OCT measurement using the eye information acquisition section 22. At this time, since heat is generated in the control unit 21 and the eye information acquisition unit 22 of the ophthalmologic apparatus 10, the blower 63 of the heat exhaust mechanism 60 is driven. Then, in the ophthalmological apparatus 10, air outside the casing 51 is introduced into the heat generating section 53 through the inlet 61, circulates inside the heat generating section 53, and then flows out of the casing 51 through the exhaust port 62. A flow is formed that discharges in the opposite direction. Thereby, in the ophthalmological 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 ophthalmological apparatus, the light source of the acquisition optical system, the acquisition optical system, and the control section are housed in separate storage sections, and the storage sections are spatially separated by a spacer. However, in conventional ophthalmological apparatuses, the temperature of the storage section that stores each increases due to heat from the light source and control section, so even if it is separated, it is necessary to install it around the storage section that stores the acquisition optical system. There is a possibility that the temperature of the storage section will increase and the temperature will be affected by heat. In addition, in conventional ophthalmological equipment, if dust enters the storage part that stores the acquisition optical system, it may affect the guiding of light in the acquisition optical system and prevent the acquisition of appropriate eye information. be.

On the other hand, the ophthalmological apparatus 10 hermetically accommodates the reflex measurement optical system 30 and the OCT optical system 40 as an acquisition optical system in an optical partition 52, and also includes a heat generating member 54 in the acquisition optical system and the control unit 21. It is housed in a heat generating partition body 53. The ophthalmological apparatus 10 also includes both partition bodies (52, 53) provided in the housing 51 at intervals, and a heat exhaust mechanism 60 that discharges the heat inside the heat generating partition body 53 to the outside of the housing 51. has been established. For this reason, the ophthalmological apparatus 10 suppresses the temperature rise of the heat generating section 53 by the heat exhaust mechanism 60, and then separates the heat generating section 53 from the optical section 52. The influence of heat on the acquisition optical system can be significantly suppressed compared to other ophthalmological devices. In addition, the ophthalmologic apparatus 10 houses the optical compartment 52 and the heat generating compartment 53 in the housing 51, and the optical compartment 52 is hermetically sealed. It is possible to prevent dust from entering the acquisition optical system compared to other ophthalmological equipment.

Further, in the ophthalmological apparatus 10, in the housing 51, an optical partition body 52 is provided on the subject side, and a heat generation partition body 53 is provided on the opposite side, that is, at the farthest position from the subject. It is possible to prevent discomfort from being caused to the subject due to heat from the body.

Further, in the ophthalmologic apparatus 10, the heat-generating compartment 53 surrounds the heat-generating member 54 and communicates with the outside through the compartment opening 61b and the compartment opening 62a, that is, only the compartment opening 61b and the compartment opening 62a are connected to each other. It is shaped like an open container. Therefore, in the ophthalmic apparatus 10, the heat exhaust mechanism 60 discharges all of the air introduced from the inlet 61 through the outlet 62, so that the air circulates through the heat generating section 53 from the inlet 61 and advances to the outlet 62. Air flow can be formed, and the heat generating member 54 can be efficiently cooled.

In addition, in the ophthalmic apparatus 10, the inlet 61 of the heat exhaust mechanism 60 is made larger than the outlet 62. Therefore, the ophthalmologic apparatus 10 can form an air flow in which the air introduced from the inlet 61 circulates within the heat generating partition 53 and then advances to the outlet 62. Thereby, the ophthalmologic apparatus 10 can evenly cool the heat generating member 54 housed in the heat generating partition body 53. In addition, since the ophthalmic device 10 has the inlet 61 and the outlet 62 facing each other in the X direction, the air can flow smoothly from the inlet 61 to the outlet 62, and the heat generating member 54 can be made more efficient. Can be cooled efficiently.

In particular, in the ophthalmologic apparatus 10 of the first embodiment, the inlet 61 and the outlet 62 are provided near the lower end of the heat-generating compartment 53, and the inlet 61 extends higher than the outlet 62, and A first heat generating member 54A with a large calorific value is provided, and a second heat generating member 54B is provided on the upper side. Therefore, the ophthalmic apparatus 10 forms a linear air flow from the inlet 61 to the outlet 62, and the air flows from the inlet 61 to the upper part of the heat generating section 53 before proceeding to the outlet 62. Air flow can be formed. Thereby, the ophthalmologic apparatus 10 can more efficiently cool the first heat generating member 54A, which generates a large amount of heat, and can also cool the second heat generating member 54B, which generates a small amount of heat compared to the first heat generating member 54A. In particular, since the ophthalmic apparatus 10 is provided with the blower 63 near the outlet 62, it is possible to easily form the air flow as described above.

The ophthalmological apparatus 10 has a passage section 62c facing downward at the discharge port 62 and is provided with a wing plate 62d, so that the air to be discharged can be directed downward. Therefore, even if there are people (examiner, examinee, etc.) in the vicinity, the ophthalmological device 10 can prevent hot air from being blown toward the person's face, thereby preventing discomfort from being caused. be able to. This is especially true when hot air is directed toward the eye E to be examined, which accelerates dryness, leaving the eye E in an unusually dry state, making it difficult to properly capture the normal state of the eye E. It is more effective because there is a risk.

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

The ophthalmological apparatus 10 hermetically accommodates the acquisition optical system (reflex measurement optical system 30, OCT optical system 40) in an optical compartment 52, and also houses the heat generating member 54 in the acquisition optical system and the control unit 21 in the heat generating compartment 53. It is accommodated. In addition, the ophthalmological apparatus 10 includes two compartment bodies (52, 53) spaced apart from each other within the housing 51, and a heat exhaust mechanism 60 that discharges the heat inside the heat generating compartment 53 to the outside of the housing 51. has been established. For this reason, the ophthalmological apparatus 10 can significantly suppress the influence of heat on the acquisition optical system compared to conventional ophthalmic apparatuses that do not emit heat. It is possible to prevent dust from entering the acquisition optical system compared to other ophthalmological equipment.

Further, in the ophthalmologic apparatus 10, the heat exhaust mechanism 60 includes an inlet 61 that communicates with the inside of the heat generating section 53 from the outside of the housing 51, and an exhaust port 62 that communicates with the outside of the housing 51 from the heat generating zone 53. It has a blower 63 that forms a flow of air from the inlet 61 to the outlet 62. The ophthalmological apparatus 10 then surrounds the heat generating section 53 with the heat generating member 54, and has an opening that becomes part of the inlet 61 (compartment body opening 61b) and an opening that becomes part of the outlet 62 ( The compartment opening 62a) communicates with the outside. Therefore, by driving the blower 63, the ophthalmological apparatus 10 can cause the air taken in from the inlet 61 to circulate inside the heat generating section 53 and proceed to the exhaust port 62. The heat generating member 54 housed in the body 53 can be cooled.

Furthermore, in the ophthalmologic apparatus 10, the inlet 61 has a larger opening area than the outlet 62. Therefore, the ophthalmologic apparatus 10 can allow the air taken in from the inlet 61 to circulate throughout the heat generating section 53 and proceed to the exhaust port 62, thereby evenly cooling the heat generating member 54 housed in the heat generating section 53. can.

In the ophthalmologic apparatus 10, the outlet 62 discharges air from the heat generating compartment 53 downward. Therefore, the ophthalmologic apparatus 10 can prevent hot air from being blown toward the faces of people nearby, thereby preventing them from feeling uncomfortable.

In the ophthalmological apparatus 10, the heat generating section 53 is located in the housing 51 on the side opposite to the eye E side with respect to the optical section 52. Therefore, the ophthalmological apparatus 10 can prevent the subject from feeling uncomfortable due to the heat from the heat generating member 54.

Therefore, in the ophthalmologic apparatus 10 as an example of the ophthalmologic 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 (reflex measurement optical system 30, OCT optical system 40). .

Although the ophthalmic apparatus of the present disclosure has been described above based on Example 1, the specific configuration is not limited to Example 1, and does not depart from the gist of the invention according to each claim. Changes and additions to the design are permitted as long as possible.

For example, in the first embodiment, the eye information acquisition unit 22 having the above-described configuration is used. However, the acquisition unit of the present disclosure can be applied as long as it has an acquisition optical system that can acquire information about the eye E, and is not limited to the configuration of the first embodiment.

Furthermore, in the first embodiment, the heat generating section 53 is located in the housing 51 on the opposite side of the eye E side with respect to the optical section 52. However, if the heat generating section 53 is located at a position surrounding the optical section 52 in the horizontal direction of the optical section 52, excluding the side of the eye E (subject), the optical section 53 It may be provided on the side (X direction) of, and is not limited to the configuration of the first embodiment. Furthermore, the heat generating section 53 may be located above the optical section 52, and is not limited to the configuration of the first embodiment.

Furthermore, 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 inside the heat generating section 53 by discharging the heat of the heat generating section 53 to the outside of the casing 51 using air flow, The shapes and positions of the inlet 61 and the outlet 62 may be set as appropriate, and are not limited to the configuration of the first embodiment.

In the first embodiment, the blower 63 is provided near the exhaust port 62 in the heat exhaust mechanism 60 . However, as long as the blower 63 forms a flow of air from the inlet 61 to the outlet 62 within the heat generating section 53, the position and configuration may be set as appropriate, and the configuration of the first embodiment may be used. Not limited.

10 Ophthalmological apparatus 21 Control unit 30 Ref measurement optical system (as an example of an acquisition optical system) 40 OCT optical system (as an example of an acquisition optical system) 51 Housing 52 Optical compartment 53 Heat generating compartment 54 Heat generating member 60 Exhaust heat Mechanism 61 Inlet 61b Compartment body opening (as an example of an opening) 62 Discharge port 62a Compartment body opening (as an example of an opening) 63 Air blower E Subject's eye

Claims (6)

an acquisition optical system that acquires information about the eye to be examined;
a control unit that controls the acquisition optical system;
a housing that houses the acquisition optical system and the control unit;
a heat-generating section that accommodates a heat-generating member in the acquisition optical system and the control unit inside the housing;
an optical partition that is disposed inside the casing at a distance from the heat-generating partition and that hermetically houses the acquisition optical system excluding the heat-generating member;
a heat exhaust mechanism that discharges heat from the heat generating section to the outside of the casing;
The ophthalmologic apparatus is characterized in that the heat generating member is an electronic circuit board in the control section and an electronic circuit board that drives a driving part in the acquisition optical system. The heat exhaust mechanism includes an inlet leading from the outside of the casing into the heat generating compartment, an exhaust port leading from the heat generating compartment to the outside of the casing, and an air outlet leading from the inlet to the exhaust port. a blower for forming a flow of;
The heat generating partition body surrounds the heat generating member and communicates with the outside through an opening that becomes a part of the inlet and an opening that becomes a part of the outlet. 1. The ophthalmological device according to 1. The ophthalmologic apparatus according to claim 2, wherein the inlet has a larger opening area than the outlet. The ophthalmologic apparatus according to claim 2 or 3, wherein the discharge port discharges air from the heat generating section downward. Claims 1 to 4 are characterized in that the heat generating section is located in the housing in a horizontal direction excluding the eye side of the optical section, or above the optical section. The ophthalmological device according to any one of the above. 6. The ophthalmological apparatus according to claim 5, wherein the heat generating partition is located within the housing on a side opposite to the eye to be examined of the optical partition.