JPH0137603Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a visual field measurement device that presents an optotype to a subject and measures whether or not there is an abnormality in the visual field of the subject.

BACKGROUND ART Conventionally, visual field measuring devices have been known that present an optotype to a person to be measured and measure whether or not there is an abnormality in the visual field of the person to be measured. This visual field measuring device is
It has a face receiving hole that receives the face of the person to be measured, and the inner part of the face receiving hole is a substantially hemispherical dome. Light-emitting elements are installed, and when measuring the visual field, the person being measured inserts his or her face into the face-receiving hole, looks at the light-emitting elements with the line of sight fixed, and watches the light-emitting elements blinking individually. By observing the blinking and operating a recognition switch to determine whether or not the blinking of the light emitting elements is recognized, data is collected as to whether or not the blinking of the light emitting elements in which line of sight direction is confirmed. The measurer performs the measurement operation using an operation command section provided at a portion away from the face receiving hole. This measurement operation is performed using a light pen for operation commands, but in this visual field measurement, the measurement subject's visibility is kept constant, so the subject's visual sensitivity is It is required to perform measurements with a constant background light, and for this reason, perimetry devices are usually used in dark rooms.

By the way, it is not necessary to give measurement operation commands using a light pen from the start of measurement until the end of measurement when the person being measured is engaged in measurement. The pen can be locked in the light pen holder, but since the measurement operation is done in a dark room, it is difficult to check which side the light pen holder is in, and the light pen cannot be locked. It is difficult to store the light pen in the light pen holder and the light pen holder does not function as a light pen holder, and conversely, the light pen stored in the light pen holder cannot be used for measurement. It has become difficult to grasp when giving commands.

Purpose of the invention The present invention was made in view of the above circumstances, and its purpose is to control the position of the light pen stored in the light pen holder, including the light pen holder, even in a dark room. An object of the present invention is to provide a visual field measurement device that allows easy confirmation.

Structure of the invention The present invention was developed by focusing on the fact that when making measurements, the power-on lamp that indicates the power-on status is always lit when the power is turned on. The light pen holder is located within the reach of the indicator light of the input lamp.

Embodiments Below, embodiments of the visual field measuring device according to the present invention will be described based on the drawings.

The figure is a perspective view showing an embodiment of the visual field measuring device according to the present invention, and in this figure, 1 is a frame;
is the main body of the visual field measuring device, and the pedestal 1 is the pedestal part 3.
The main body 2 of the visual field measuring device is attached to the upper end of the supporting column 4 so as to be separable from the supporting column 4. The height can be changed by adjusting the height. This visual field measuring device main body 2 has a housing 5, and this housing 5 has a built-in dome 6 having a substantially hemispherical shape, and a large number of light emitting elements 7 are arranged on the inner surface of the dome based on a predetermined pattern. Here, the light emitting element 7 is composed of an LED element, and this light emitting element 7 functions as a visual target. The housing 5 is provided with a panel 8 on the front thereof, and the panel 8 is formed with a face receiving hole 9 for receiving the face of the person to be measured. The back side of the housing 5 is shaped to follow the shape of the dome 6, with the side where the panel 8 is located as the front side. The face receiving hole 9 has a circular shape,
The person to be measured responds to the measurement by inserting his or her face into this face receiving hole 9, and the face receiving hole 9 is provided with a face receiving member 10 for fixing the face. 10 is a forehead rest part 11 and a chin rest part 12
It is composed of.

The visual field measuring device main body 12 has a face receiving hole 9 therein.
An operation display device 13 as an operation command unit and handles 14, 15 are provided on the side surface at a location away from the camera.The handle 14 has a function of adjusting the height of the face, and the handle 15 has a function of adjusting the height of the face. It has a function of adjusting the horizontal position of the face, thereby allowing the center of the line of sight to be aligned with the light emitting element as a fixed index placed at the center of the dome. The operation display device 13 has an operation command screen 16, a fixation monitoring screen 17, a control switch 18, and a light pen 19, and information including a plurality of operation commands is displayed on the operation screen 16. An operation command can be selected by operating the light pen 19 and the control switch 18, and the fixation monitoring screen 17 displays the subject's anterior eye segment. The measurer is able to monitor whether the person being measured is gazing at a fixed index.
At the bottom of the operation display device 13, there is a print mechanism 20.
is provided so that measurement data can be compiled and printed out.

The light emitting elements 7 are individually blinked, and the person to be measured inserts his/her face into the face receiving hole 9, looks at the light emitting elements with the line of sight fixed, and observes the light emitting elements blinking individually. Then, the visual field measuring device body 2
is provided with a recognition switch 21 for recognizing the blinking of the light emitting elements 7 which are individually blinked, and the visual field measurement device allows the subject to operate the recognition switch 21 to determine whether the subject is present in any line of sight direction. Whether or not the light emitting element 7 has been recognized is compiled as data. Here, it is assumed that the person to be measured responds to the measurement in a seated posture, and the housing back section 22 in the upper part of the operation display device 13 is lit to indicate the power-on state when the power-on switch is turned on. A power-on lamp 23 is provided to display the power-on lamp 23.
A light pen holder 24 for receiving and holding the light pen 19 is provided in a housing portion within a range illuminated by the display light. The light pen holder 24 has an upper surface 24' bordered with a highly reflective color. Light pen holding part 24
Here, the light pen 19 has a receiving hole 25, and the light pen 19 is inserted into the receiving hole 25 from the tip side and stored in the light pen holding portion 24. When the light pen 19 is stored, it is illuminated by the display light of the power-on lamp 23, so that its position can be confirmed when the light pen 19 is stored.

Effects of the invention As explained above, the present invention provides a light pen holder in the area illuminated by the display light of the power-on lamp that indicates the power-on state, so visual field measurement can be carried out in a dark room. When performing
It is possible to confirm the position of the light pen holder without providing a dedicated illumination light source to illuminate the light pen holder, and the light pen holder can be effectively used.

[Brief explanation of the drawing]

The figure is a perspective view showing the main part configuration of the visual field measuring device according to the present invention. 2... Visual field measurement device main body, 5... Housing,
8...Panel, 9...Face receiving hole, 13...Operation display device, 16...Operation command screen, 19...Light pen, 23...Power on lamp, 24...Light pen holder.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A light pen that has a power-on lamp that indicates the power-on state and has an operation command section located away from the face receiving hole of the person being measured. In the visual field measurement device that issues an operation command using a light pen, the light pen holding portion for holding the light pen is formed in a region illuminated by the display light of the power-on lamp. Device. (2) The visual field measuring device according to claim 1, wherein the light pen holder and the power supply lamp are provided in the vicinity of the operation command section. (3) The visual field measuring device according to claim 1, wherein the light pen holding portion is bordered with a color having a high reflectance.