JP3353975B2 - Ophthalmic equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmic apparatus for examining an eye to be examined.

[0002]

2. Description of the Related Art As a device for inspecting an eye to be examined, an eye refraction measuring device, a corneal shape measuring device and the like are known. These devices are composed of many parts such as a measuring unit, an observation unit, a display unit, and a recording unit, but the conventional mainstream is a stationary type. In recent years, electrical components have been miniaturized due to the remarkable progress in electronics, and handheld devices have also been known. A hand-held device is useful for examining an elderly person or the like who has difficulty moving to an examination room. As described above, different types of apparatuses, such as a stationary type and a hand-held type, are properly used in consideration of the condition of the subject, the place to be inspected, and the like.

[0003]

However, in the conventional apparatus, since these different types of apparatuses are each configured as a dedicated apparatus, only one fixed type can be used. Even with a device having the same function as a corneal shape, a plurality of devices had to be prepared for each type. This has the disadvantage that it is wasteful both spatially and economically. An object of the present invention is to provide an ophthalmic device that can be used as various types of devices.

[0004]

In order to achieve the above object, the present invention is characterized by having the following configuration. (1) In an ophthalmic apparatus for examining an eye to be examined ,
Inspection optical system and control means for inspection , and driving electricity
Power supply contact for receiving power supply and communication for data communication.
An inspection device main body having a credible contact point , and an attaching / detaching means for freely attaching / detaching to / from the inspection device main body, attached to the inspection device main body
The contact for power supply and the contact for communication of the inspection device body
An attached unit that has a power contact and a communication contact to be connected to each other.
A first attached unit for handheld inspection having transmission means,
Corresponding to the power contact and the communication contact of the inspection device main body.
Power and communication contacts as well as the
A second attached unit having attachment / detachment means for attachment / detachment is provided.
Detects the installed ophthalmic rack and the type of attached unit
And a detecting means .

[0005]

[0006]

[0007]

[0008]

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating the configuration of a corneal shape measuring apparatus according to an embodiment. Reference numeral 1 denotes a measuring unit main body that is shared by various types of devices. The measuring unit main unit 1 houses an optical system for measurement and observation, and an electric system for control and arithmetic processing as described later. I have. Reference numeral 2 denotes a measurement window. The examiner observes the subject's eye through the measurement window 2 and the observation window 3 and performs alignment. A switch group 4 includes switches such as a measurement start switch. Reference numeral 5 denotes a liquid crystal display for displaying measurement results and the like. Reference numeral 6 denotes a measurement value transfer switch that is pressed when transmitting measurement data to a printer (not shown). The lower portion of the measuring section main body 1 has a grip shape so that it can be used as a hand-held type, and can be gripped with one hand. The lower part of the grip is formed with a fitting part 7 for fitting a mounting member described later.

Reference numeral 10 denotes a power supply unit for use as a hand-held type. The power supply unit 10 includes a battery 11 and a mounting member 12.
It is composed of An attachment member 12 for attaching the battery 11 to the fitting portion 7 of the measurement unit main body 1 is fixed,
It has an integral structure. The battery 11 includes the mounting member 1
2 can be attached to the measuring section main body 1 by sliding it along the fitting section 7 of the measuring section main body 1. The mounting member 12 is provided with power supply contacts 13a and 13b, communication contacts 13c and 13d, and unit detection contacts 13e and 13f, and is not located at a position corresponding to the fitting portion below the measuring unit main body 1. The illustrated contacts are provided. This contact has an upward biasing spring, and
When attached to the contact, it comes into close contact with the contact of the other party.

FIG. 2 is a schematic layout diagram of an optical system arranged in the measuring section main body 1. Reference numeral 21 denotes an eye to be examined, and 22 denotes an examiner's eye. The examiner's eye 22 magnifies and observes the subject's eye 21 via the observation lens 23. Reference numeral 24 denotes a target plate on which an alignment mark (not shown) is formed, and reference numeral 25 denotes a target plate illumination light source. The luminous flux of the alignment mark that has passed through the optotype plate 24 by turning on the optotype plate illumination light source 25 is reflected by the beam splitter 2.
The light is reflected at 6 toward the examiner's eye 22. Reference numeral 27 denotes a target projecting optical system for measuring a corneal shape, and four sets are arranged at 90-degree intervals on the same circumference centered on the observation optical axis. Each target projection
Optical systems 27a to 27d (27b and 27c are not shown)
Is an LED 28 that emits light in the near infrared region, and a spot stop 2
9 and a collimator lens 30. Reference numeral 31 denotes a cornea-shaped detection optical system, which can use various well-known detection optical systems, but the description thereof is omitted because it is not directly related to the present invention. Reference numeral 32 denotes LEDs arranged on the same circumference centered on the observation optical axis at intervals of 30 degrees.
Each LED includes a spot stop 33 and a collimator lens 34, and the entire corneal reflection image is used as a earring.

The operation of the apparatus having the above configuration when the measuring section main body 1 is used as a hand-held type will be described with reference to a control system block diagram of the measuring section main body 1 shown in FIG. The mounting member 12 integrated with the battery 11 is
To the fitting part 7 of FIG. Power contact 1
Power is supplied to the measuring section main body 1 via 3a and 13b,
The microcomputer 41 operates. The microcomputer 41 receives signals from the unit detection contacts 13e and 13f, and receives a signal from the power supply unit 1 for use as a hand-held type.
0 is detected to be connected. Unit detection contact 1
Reference numerals 3e and 13f are connected to the positive power supply potential or the ground potential, and the connected units are read by a combination thereof. This unit detection is used as a signal to start a program that activates this special function when a special function (left / right discrimination function or sagittal measurement) is provided by a connected unit such as a hand-held type or a gantry type. You.

The microcomputer 41 includes a driver 42
Then, the target plate illumination light source 25 is turned on to present the alignment mark to the inspector, and the myearing illumination light source 32 is turned on via the driver 43 to form a hearing on the subject's eye. The examiner performs alignment so that the anterior segment of the subject's eye and the alignment mark have a predetermined relationship. When the alignment is completed, the measurement start switch 4 is pressed, and the microcomputer 41 receives this signal, turns on the LED 28 via the driver 44, and projects the measurement target to the eye to be inspected. The light detecting element of the measuring optical system 31 detects the incident position via the driver 45, and the microcomputer 41 performs a predetermined arithmetic processing based on the detection result to obtain a measured value. The measured value is displayed on the display 5 via the driver 46.
Will be displayed. Next, when the measured value transfer switch 6 is pressed,
The measured value is sent to the power supply unit 10 via the communication contacts 13c and 13d of the mounting member 12, and the power supply unit 10 sends the measured value to an external printer unit by a transmitting unit (not shown). Communication from the power supply unit 10 to the printer unit can be performed by a known method such as wire, light, radio wave, or the like. The measuring section main body 1 as described above can be used by being connected to a gantry or a slit lamp in addition to being connected to the power supply section 10.

FIG. 4 is a view showing an example of a case where the measuring section main body 1 is used by attaching it to a gantry. Reference numeral 50 denotes a gantry. The gantry 50 has a top plate 51, a gantry base 52 that moves with respect to the top plate 51, an arm 53 extending upward from the gantry base 52 , and a joystick 54. The mounting member 12a is fixed to the top of the gantry arm 53 ,
The structure is such that power is supplied to the measuring section main body 1 .

FIGS. 5 and 6 are views showing an example in which the measuring section main body 1 is mounted on a slit lamp 60 and used.
Reference numeral 61 denotes a slit lamp dedicated arm for attaching the measuring section main body 1 to the slit lamp 60, and a dedicated arm 6
1 includes a slit lamp mounting shaft 62, an arm support 63, a pedestal 64, a slide bar 65 for making the distance between the arm support 63 and the pedestal 64 extendable and contractable as shown in FIG. Be composed.

The present invention does not need to be fixedly used as one type of device, and can be used as various types of devices.

[0016]

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a configuration of a corneal shape measuring apparatus according to an embodiment.

FIG. 2 is a schematic layout diagram of an optical system arranged in a measurement unit main body 1;

FIG. 3 is a block diagram of a control system of a measurement unit main body.

FIG. 4 is a diagram illustrating an example of a case where a measurement unit main body is used by being attached to a gantry.

FIG. 5 is a diagram illustrating an example of a case where a measurement unit main body is used by being mounted on a slit lamp.

FIG. 6 is a diagram illustrating an example of a case where a measurement unit main body is mounted on a slit lamp and used.

FIG. 7 is an explanatory diagram of a dedicated arm when the measurement unit main body is mounted on a slit lamp and used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Measuring part main body 7 Fitting part 10 Power supply part 11 Battery 12 Mounting member 13a, 13b Power supply contact 13c, 13d Communication contact 13e, 13f Unit detection contact 28 LED 31 Detection optical system 41 Microcomputer 50 Mount unit 60 Slit lamp

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-192297 (JP, A) JP-A-61-272028 (JP, A) JP-A-4-195211 (JP, A) JP-A-5-192 76498 (JP, A) JP-A-62-299235 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61B 3/00-3/16

Claims (1)

(57) [Claims] 1. An ophthalmologic apparatus for inspecting an eye to be inspected, an inspection optical system and a control unit for inspecting the eye to be inspected, and a drive
Power contacts to receive power supply and data communication
An inspection apparatus main body having communication contacts for communication , and an attaching / detaching means for freely attaching / detaching to / from the inspection apparatus main body.
When attached, the power supply contact and communication for the inspection device body
It has a power contact and a communication contact that are connected to the contacts, respectively.
A One supplementary unit, and outputs it to the battery and external
Auxiliary unit for hand-held inspection with transmission means for
And the power contact and the communication contact of the inspection device main body.
Corresponding power and communication contacts, and inspection equipment
Second attachment unit having attachment / detachment means for freely attaching / detaching the body
Check the ophthalmic mount on which the
Ophthalmologic apparatus characterized by comprising detecting means for output, the.