Light shielding frame of diopter screening instrument

Abstract

The utility model discloses a light shielding frame of a diopter screening instrument, which belongs to the technical field of medical auxiliary supplies, and when the diopter screening instrument is used in an outdoor place, the light shielding frame can be used for providing a good light environment for detection, so that the detection can be smoothly carried out, and the detection accuracy can be ensured. Comprising a fixing frame, a light blocking piece is arranged on the upper portion of the fixing frame, the outer side of the light blocking piece is covered with light blocking cloth, the rear end of the light blocking cloth is fixedly connected with the fixing frame, the width of the light blocking cloth is larger than that of the light blocking piece, and a supporting frame is arranged at the front end of the light blocking cloth. An elastic buckle used for clamping and fixing the supporting frame to the head fixing support is arranged on the supporting frame, the front end of the light blocking cloth is fixedly connected with the rear end of the supporting frame, the supporting frame 4 is hung on the outer side of the light blocking piece, and a first fixing structure used for fixing the supporting frame to the outer side of the light blocking piece is arranged on the light blocking piece. And a light-emitting structure is arranged on the light blocking sheet.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical auxiliary, more specifically, especially, a photophobia frame of diopter screening instrument. BACKGROUND

[0002] Diopter screening instrument is through using optical instrument to detect the refraction light degree of the eyeball of the examinee, judges whether the eyeball exists hyperopia, myopia or astigmatism and other ametropia problems, and can also determine the degree of each kind of ametropia, therefore, is widely used in visual screening.

[0003] As shown in Figure 1 The diopter screening instrument generally includes an optometry instrument main body 10 and a head fixing support 20, the optometry instrument main body 10 is provided with a detection lens for obtaining the eyeball image of the examinee on the side of the head fixing support 20, when detecting, the head of the examinee needs to be fixed on the head fixing support 20, the position between the optometry instrument main body 10 and the head fixing support 20 is adjusted, the detection lens is aligned with the left or right eyeball of the examinee, and the distance between the detection lens and the eyeball is adjusted, so that the detection lens can obtain clear eyeball image, and whether the eyeball exists hyperopia, myopia or astigmatism and other ametropia problems can be judged through the obtained eyeball image.

[0004] Since the diopter screening instrument obtains the light path refraction image by using the refraction principle of light, in order to ensure the accuracy of the detection result, it is required that the light between the optometry instrument main body 10 and the head fixing support 20 is soft and uniformly divergent during the detection process, but it is difficult to meet such light requirements in the field of the out-of-site examination, which brings great difficulty to the detection and affects the accuracy of the test result. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a photophobia frame of diopter screening instrument, when the diopter screening instrument is used in the out-of-site place, the photophobia frame can provide a good light environment for the detection, so as to smoothly carry out the detection, and can ensure the accuracy of the detection.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a photophobia frame of diopter screening instrument, wherein, including fixed frame, the upper portion of fixed frame is equipped with the light blocking piece, the outside of light blocking piece is covered with light blocking cloth, the rear end of light blocking cloth is fixedly connected with fixed frame, the width of light blocking cloth is longer than the width of light blocking piece, the front end of light blocking cloth is equipped with support frame, the support frame is equipped with the elastic buckle for clamping and fixing support frame on head fixed support, the front end of light blocking cloth is fixedly connected with the rear end of support frame, the support frame 4 is hung outside light blocking piece, the first fixed structure for fixing support frame outside light blocking piece is equipped on the light blocking piece, the light emitting structure is equipped on the light blocking piece, the second fixed structure for fixing fixed frame on optometry appearance main part is equipped on the fixed frame.

[0008] Further, the first fixed structure includes a baffle disposed at the front end of the light blocking piece.

[0009] Further, the baffle is two pieces, and the two pieces of the baffle are symmetrically disposed at the front end of the light blocking piece.

[0010] Further, the light emitting structure includes LED lamp beads disposed on the inner wall of the light blocking piece, and a diffuser is disposed outside the LED lamp beads.

[0011] Further, the LED lamp beads are two, and the two LED lamp beads are respectively disposed at the two ends of the light blocking piece.

[0012] Further, the fixed frame is provided with a charging battery and a switch button, and the switch button is respectively connected with the charging battery and the LED lamp bead circuit.

[0013] Further, the second fixed structure includes fixing belts disposed on the left and right sides of the fixed frame, and the outer ends of the two fixing belts are provided with magic tapes that are adhered to each other.

[0014] Further, the fixing belts are elastic belts.

[0015] Further, the support frame is adapted to the head fixed support.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] This utility model discloses a light-shielding frame for a refractive optometry screening instrument. A fixed frame is provided, with a light-shielding sheet on the upper part of the frame. A light-shielding cloth covers the outer side of the light-shielding sheet, and the rear end of the cloth is fixedly connected to the fixed frame. The width of the cloth is greater than the width of the light-shielding sheet. A support frame is provided at the front end of the cloth, and the support frame has elastic buckles for clamping and fixing it to a head-mounted bracket. The front end of the cloth is fixedly connected to the rear end of the support frame, which hangs on the outer side of the light-shielding sheet. The light-shielding sheet has a first fixing structure for fixing the support frame to the outer side, and a light-emitting structure. The fixed frame has a second fixing structure for fixing the frame to the main body of the optometry instrument. In use, the second fixing structure is used to fix the fixing frame to the outside of the detection lens of the optometry instrument body. When using the refractive screening instrument in an outdoor environment, the elastic buckle is used to clamp and fix the support frame to the outside of the head fixation bracket. The light-blocking cloth connected to the support frame and the fixing frame can block the light path between the head fixation bracket and the optometry instrument body, effectively avoiding the strong light environment of the outdoor environment from affecting the test results. The light-emitting structure on the light-blocking sheet generates soft and evenly diffused light in the blocked space, thereby creating a good environment for the test, so as to ensure the smooth progress of the test and the accuracy of the test. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a side view diagram of the structure of a refractive screening instrument in the prior art;

[0020] Figure 2 This is a top view cross-sectional structural diagram of the present invention;

[0021] Figure 3 yes Figure 2 Enlarged structural diagram of section A in the middle;

[0022] Figure 4 This is a side view of the structure of the present invention in use.

[0023] Figure 5 This is a side view cross-sectional structural diagram of the utility model in use.

[0024] The components are: 10-Optometry instrument body, 20-Head fixing bracket, 1-Fixing frame, 2-Light blocking sheet, 3-Light blocking cloth, 4-Support frame, 5-Elastic buckle, 6-Blocking sheet, 7-LED lamp bead, 8-Diffusing lamp cover, 9-Rechargeable battery, 11-Switch button, 12-Fixing strap, 13-Hook and loop fastener. DETAILED DESCRIPTION

[0025] The technical scheme of the utility model will be explained in further detail in connection with the specific embodiments below, but will not constitute any limitation to the utility model.

[0026] Referring to Figures 1 to 5 As shown in the figure, the light-proof frame of the diopter screening instrument comprises a fixing frame 1, which can fix the light-proof frame outside the detection lens of the optometry instrument main body 10. The upper part of the fixing frame 1 is provided with a light-blocking piece 2, the outside of the light-blocking piece 2 is covered with a light-blocking cloth 3, the rear end of the light-blocking cloth 3 is fixedly connected with the fixing frame 1, the width of the light-blocking cloth 3 is longer than that of the light-blocking piece 2, the front end of the light-blocking cloth 3 is provided with a support frame 4, the support frame 4 is provided with an elastic buckle 5 for clamping and fixing the support frame 4 on the head fixing support 20, the front end of the light-blocking cloth 3 is fixedly connected with the rear end of the support frame 4, the support frame 4 is hung outside the light-blocking piece 2, the light-blocking piece 2 is provided with a first fixing structure for fixing the support frame 4 outside the light-blocking piece 2, the light-blocking piece 2 is provided with a light-emitting structure, and the fixing frame 1 is provided with a second fixing structure for fixing the fixing frame 1 on the optometry instrument main body 10. When in use, the fixing frame 1 is fixed outside the detection lens of the optometry instrument main body 10 by the second fixing structure, when the diopter screening instrument is used in an outdoor site, the support frame 4 is clamped and fixed outside the head fixing support 20 by the elastic buckle 5, and the light-blocking cloth 3 connected with the support frame 4 and the fixing frame 1 can shield the light path channel between the head fixing support 20 and the optometry instrument main body 10, effectively avoiding the influence of the strong light environment of the outdoor site on the test results, and generating soft and evenly divergent light in the shielded space by the light-emitting structure on the light-blocking piece 2, thereby creating a good environment for the test, so as to facilitate the smooth progress of the detection and ensure the accuracy of the detection. When the detection is carried out in an indoor environment with good light, the light path channel between the head fixing support 20 and the optometry instrument main body 10 does not need to be completely shielded, the light-blocking piece 2 can help shield part of the detection light, thereby enhancing the detection effect, and the unused support frame 4 can be placed outside the light-blocking piece 2, and the fixing of the support frame 4 by the first fixing structure can effectively prevent the support frame 4 from sliding off the light-blocking piece 2.

[0027] Further, the first fixing structure comprises a blocking piece 6 arranged at the front end of the light-blocking piece 2, when the support frame 4 is placed outside the light-blocking piece 2, the blocking piece 6 can push against the support frame 4 to prevent it from sliding off the front end of the light-blocking piece 2.

[0028] Further, the blocking piece 6 is 2 pieces, and the two blocking pieces 6 are symmetrically arranged at the front end of the light-blocking piece 2, which can enhance the supporting effect of the blocking piece 6 on the support frame 4, so that the support frame 4 can be more stably fixed outside the light-blocking piece 2.

[0029] Further, the light-emitting structure comprises the LED lamp beads 7 arranged on the inner wall of the light-blocking sheet 2, and the light diffuser 8 is arranged outside the LED lamp beads 7; when the light-blocking cloth 3 is used to block the light path channel between the head fixing support 20 and the optometry main body 10, in order to enhance the light in the shielding space and create a good environment, soft and diffused light needs to be supplemented; the LED lamp beads 7 emit light, and the light becomes soft and diffused after passing through the light diffuser 8, so that a more suitable environment for testing can be created in the shielding space.

[0030] Further, the two LED lamp beads 7 are arranged at two ends of the light-blocking sheet 2 respectively, and the two LED lamp beads 7 can increase the light direction of the LED lamp beads and enhance the light effect in the shielding space.

[0031] Further, the fixing frame 1 is provided with the rechargeable battery 9 and the switch button 11, the switch button 11 is electrically connected with the rechargeable battery 9 and the LED lamp beads 7 respectively, the rechargeable battery 9 can provide power for the LED lamp beads 7 to emit light, and the switch button 11 can control the opening and closing of the LED lamp beads 7.

[0032] Further, the second fixing structure comprises the fixing bands 12 arranged on the left and right sides of the fixing frame 1, and the outer ends of the two fixing bands 12 are provided with the magic tapes 13 which are adhered to each other; the two fixing bands 12 are wrapped around the optometry main body 10 and are tightly bound, so that the fixing frame 1 can be fixed outside the detection lens of the optometry main body 10.

[0033] Further, the fixing bands 12 are elastic bands, so as to enhance the fixing effect of the fixing bands 12.

[0034] Further, the support frame 4 is matched with the head fixing support 20, so as to increase the adhesion of the support frame 4 and the head fixing support 20 and enhance the shielding effect.

[0035] The above only describes the preferred embodiments of the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A light-tight housing for a phoropter, characterized in that, The utility model provides a kind of light blocking sheet, including fixed frame (1), the upper portion of the fixed frame (1) is equipped with light blocking piece (2), the outside of the light blocking piece (2) is covered with light blocking cloth (3), the rear end of the light blocking cloth (3) is fixedly connected with fixed frame (1), the width of the light blocking cloth (3) is longer than the width of light blocking piece (2), the front end of the light blocking cloth (3) is equipped with support frame (4), the support frame (4) is equipped with the elastic buckle (5) for being clamped and fixed on head fixed support (20) on the support frame (4), the front end of the light blocking cloth (3) is fixedly connected with the rear end of support frame (4), the support frame (4) is hung in the outside of light blocking piece (2), the light blocking piece (2) is equipped with the first fixed structure for being fixed in the outside of light blocking piece (2) of support frame (4), the light blocking piece (2) is equipped with light emitting structure, and the fixed frame (1) is equipped with the second fixed structure for being fixed on optometry instrument main body (10) of fixed frame (1).

2. The light-tight housing for a phoropter according to claim 1, wherein The first fixed structure includes a baffle (6) disposed at the front end of the light blocking piece (2).

3. The light-tight housing for a phoropter according to claim 2, wherein, The baffle (6) is two pieces, and the two pieces of baffle (6) are symmetrically disposed at the front end of the light blocking piece (2).

4. The light-tight housing for a phoropter according to claim 1, wherein The light emitting structure includes an LED lamp bead (7) disposed on the inner wall of the light blocking piece (2), and the LED lamp bead (7) is covered with a diffuser (8) on the outside.

5. A light-tight housing for a phoropter according to claim 4, wherein, The LED lamp bead (7) is two, and the two LED lamp beads (7) are respectively disposed at the two ends of the light blocking piece (2).

6. A light-tight housing for a phoropter according to claim 4 or 5, characterized in that The fixed frame (1) is provided with a rechargeable battery (9) and a switch button (11), and the switch button (11) is respectively connected with the rechargeable battery (9) and the LED lamp bead (7) circuit.

7. The light-tight housing for a phoropter according to claim 1, wherein, The second fixed structure includes a fixed band (12) disposed on the left and right sides of the fixed frame (1), and the outer ends of the two fixed bands (12) are provided with mutually adhered magic tapes (13).

8. The light-tight enclosure for a phoropter according to claim 1, wherein, The fixed band (12) is an elastic band.

9. The light-tight housing for a phoropter according to claim 1, wherein, The support frame (4) is adapted to the head fixed support (20).

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