JP3385076B2 - Optometry device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optometry apparatus provided with a subjective refracting power measuring device. 2. Description of the Related Art As an optometry apparatus used for eyeglass prescription, visual acuity test, and the like, an apparatus having an optometry table has become widespread. The optometry table has a built-in disk board on which a large number of lenses are arranged, and holds a subjective refracting power measuring device that switches an optical system having desired optical characteristics to an inspection window and arranges it. An illumination lamp is arranged near the root of an arm for suspending the subjective refraction measuring device to illuminate a near-point optotype at the time of a near-point test. However, in the optometry apparatus having the optometry table as described above, the illumination lamp for illuminating the near-point optotype turns the subjective refraction measuring apparatus to the retracted position. When it returns, it turns with the arm. For this reason, when the examiner writes a medical record or the like, when the table surface of the optometry apparatus needs to be illuminated, the position of the illumination lamp must be adjusted each time. In addition, depending on the place where the optometry apparatus is installed, there is a disadvantage that the near illumination lamp hits a wall or the like when the arm is turned. The present invention has been devised in view of the above-described drawbacks, and is an optometry apparatus provided with a subjective refractive power measurement apparatus, which has an illumination lamp capable of illuminating a fixed place regardless of the turning of an arm. Providing it is a technical issue. [0004] In order to solve the above problems, the present invention is characterized by having the following configuration. (1) In an optometry apparatus having an optometry table and a subjective refractive power measuring device that switches and arranges optical elements having various optical characteristics to an optometric window, a pole that supports an arm that holds the subjective refractive power measuring device is used. Then, by rotating the pole, the subjective refractive power measuring device is held rotatably between the retracted position and the optometric position, and the pole is moved up and down to hold the subjective refractive power measuring device up and down. means, but moves up and down dependent on the vertical movement of the pole, having an axis which is dissociated from the pole of rotation, bending subjective
When a near-point optotype is provided on the folding force measuring device,
Illuminate, and when no near-point optotype is provided,
And a support shaft on which illumination means for illuminating the surface is mounted. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the appearance of the optometry apparatus of the present embodiment, and FIG. 2 is a schematic cross-sectional view taken along line AA ′ of FIG.
This optometry apparatus includes an optometry table unit 1, a subjective optometry apparatus 2,
An objective refraction test apparatus 3 and a side table 4 are provided. Reference numeral 10 denotes a top plate of the optometry table unit 1, which is moved up and down by an up-down switch as described below. Note that no drawer or the like is provided below the top plate 10 of the optometry table unit 1, and the thickness of the lower portion of the top plate is kept to a minimum. Reference numeral 11 denotes a base of the optometry table unit 1;
1 is provided with a fixed guide 12 and a motor 13. A feed screw 14 is attached to a rotation shaft of the motor 13. The top plate 10 is provided with a feed nut 15 and a movement guide 16 that mesh with the feed screw 14. When the feed screw 14 is rotated by the motor 13, the feed nut 15 is rotated.
Moves up and down, so that the moving guide 16 and the top plate 10 move up and down guided by the fixed guide 12. FIG. 3 is a view for explaining a stopper mechanism of the optometry table section 1. When the top board 10 is moved downward, the knee of the subject sitting on the chair falls below the top board 10. The knee-plate 30 in the form of a leaf spring arranged on the side is pushed up. When the pushed knee pad 30 comes into contact with the micro switch 31, the drive of the motor 13 for vertically moving the optometry table unit 1 is immediately stopped. Therefore, the subject is protected without the top board 10 being lowered too much. The moving guide 16 on the subject side has a pole 1
A holding device 18 for holding 7 is fixed. The pole 17 supports an arm 19 holding the subjective optometry apparatus 1. The pole 17 is configured to be vertically movable with respect to the holding device 18 as is well known, and the subjective optometry apparatus 1 can be independently raised and lowered by the vertical movement of the pole 17 and the vertical movement of the top board 10. A pipe 20 is inserted through the center of the pole 17, and the pole 17 is rotatably mounted around the pipe 20.
Can be swung between the front of the subject's eye and the retracted position. A quadrilateral mounting plate 22 is attached to a lower portion of the pipe 20 to which the illumination lamp 21 is fixed at an upper end, and one side of the mounting plate 22 is in sliding contact with the surface of the moving guide 16.
The 0 moves up and down together with the pole 17, but its rotation is hindered. Therefore, even when the subjective optometric apparatus 1 is retracted to the retracted position, the illumination lamp 21 is also used for the top plate 1 of the optometric table 1.
The 0 surface can continue to be illuminated. A tray 23 on which the objective refraction test apparatus 3 is placed
A tray arm 24 is fixed to the end surface of the top plate 10, and the tray arm 24 goes around the side surface of the top plate 10 and is connected to a linear guide 25 on the back surface of the top plate. The objective refraction inspection device 3 placed on the tray 23 is movable in the longitudinal direction of the top plate 10 via a roller 26 between the tray 23 and the top plate 10. Also, by inserting a signal cable and a power cable for the objective refraction inspection apparatus 3 inside the tray arm 24, the measurement data of the objective refraction inspection apparatus 3 can be subjectively examined without exposing the cable to the outside. It can be sent to the device 2. The side table 4 is fixedly arranged on the examiner side of the moving guide 16 and moves up and down together with the top plate 10 of the optometry table unit 1. On the table of the side table 4, a lens meter, a spectacles washer, a control unit (not shown) of the subjective optometry apparatus 2 and the like can be placed. It can also be used as a table for writing prescriptions. The side table 4 is provided with a large number of drawers, and can store trial lenses and other small articles used for optometry. For this reason, no drawer is provided below the top plate 10 of the optometry table unit 1. According to the present invention, since the illuminating means is arranged at a position disengaged from the turning of the subjective refracting power measuring device, even when the subjective refracting power measuring device turns to the retracted position, the illumination means is illuminated. Since the means illuminates a predetermined position without turning ,
When a near-point optotype is provided in the subjective refraction measuring device,
Illuminate the optotype and use the optometry when no near-point optotype is provided.
To illuminate the surface of the cable.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the appearance of an optometry apparatus according to the present embodiment. FIG. 2 is a schematic sectional view taken along line AA ′ of FIG. 1; FIG. 3 is a diagram for explaining a stopper mechanism of the optometry table unit 1 of the embodiment. [Description of Signs] 1 optometry table unit 2 subjective optometry device 3 objective refraction inspection device 4 side table 10 top plate 13 motor 14 feed screw 15 feed nut 16 movement guide 17 pole 18 holding device 19 arm 20 pipe 21 illumination lamp 22 mounting Board

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A61B 3/00-3/16

Claims (1)

(57) [Claim 1] An optometric apparatus having an optometric table and a subjective refractive power measuring device for arranging optical elements having various optical characteristics in an optometric window, wherein the subjective refractive power is provided. A pole that supports an arm that holds the measurement device, and by rotating the pole, the subjective refractive power measurement device is held rotatably between the retracted position and the optometry position, and by moving the pole up and down. holding means for vertically moving the subjective refractive power measuring device, but moves up and down dependent on the vertical movement of the pole, having an axis which is dissociated from the pole of rotation, the own
Near point when the near-point optotype is provided on the haptic refractometer
Illuminate the optotype, and if no near-point optotype is provided
An optometric apparatus, comprising: a support shaft to which lighting means for illuminating the surface of the bull is attached.