CN211749531U - A window for visual acuity test - Google Patents

Abstract

The utility model discloses a window for visual acuity test, which is arranged on a panel and comprises a window and a baffle plate which are arranged on the panel; the shielding plate is arranged on the front side or the rear side of the window in a translation structure and used for shielding the left half part, the right half part or all of the window. When the visual acuity test instrument is used for visual acuity test, the panel can be fixed according to the distance requirement of visual acuity test, the person to be tested stands in the front side of the panel, move the eyes to the front side of the window, observe the visual acuity test chart through the window, when detecting the left eye, the movable shielding plate blocks the right eye, when detecting the right eye, the movable shielding plate blocks the left eye, because the front plate is fixed in position, then the window is fixed in position, the person to be tested can use the window to keep fixed as the benchmark, avoid the front and back inclination of the body or the left and right inclination, when changing the eye test, only need to move the shielding plate to change the eye that shelters from, the person to be tested need not to move the head, the detection distance and the angle can not change, thereby the accuracy.

Description

A window for visual acuity test

Technical Field

The utility model belongs to the technical field of visual acuity test, specifically speaking relates to a window for visual acuity test.

Background

The existing eyesight test adopts the mode that the visual chart is installed on a wall and other positions, during test, a tested person keeps a certain distance from the visual chart, a shelter is used for sheltering left and right eyes respectively, and the unshsheltered eyes are tested.

In the existing vision detection mode, if a testee does not stand according to a specified distance, or the body leans forwards and backwards, or the body inclines left and right, the distance or the angle of the testee from an eye chart is not in accordance with the requirement, and the problem of inaccurate vision detection is caused.

Disclosure of Invention

An object of the utility model is to provide a window for visual acuity test solves the problem that exists among the above-mentioned visual acuity test.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

a window for visual acuity test is provided, which is arranged on a panel and comprises: the window is arranged on the panel; the shielding plate is arranged on the front side or the rear side of the window in a translation structure and used for shielding the left half part, the right half part or all of the window.

Further, the shielding plate includes: a left shutter for blocking a left half of the window in a translatable configuration; and the right shielding plate shields the right half part of the window in a translation structure.

Further, the window further comprises: the shielding plate track is arranged on the front side or the rear side of the window; the shielding plate is arranged on the shielding plate rail and can translate based on the shielding plate rail.

Furthermore, a forehead positioning window protrudes from the edge of the window.

Furthermore, the upper end of the forehead positioning window is folded to form a forehead positioning baffle.

Furthermore, a shifting buckle is arranged on the shielding plate.

Furthermore, the shielding plate is connected with a driving mechanism, and the driving mechanism is controlled by a master controller of the vision detection device and is used for driving the shielding plate to move horizontally.

Furthermore, the window is arranged on the panel, and the shielding plate is arranged on the rear side of the panel; the panel on the side edge of the window is provided with a sliding groove, and the shifting buckle is arranged in the sliding groove.

Furthermore, the shifting buckle is a hand-screwed nut.

Furthermore, a stop strip is arranged in the middle of the forehead positioning window.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model provides a window for visual detection is used for visual detection time measuring, the panel can require relative visual chart fixed according to visual detection's distance, the person of measurationing stands in the panel front side, remove eye to the window front side, observe the visual chart through the window, when detecting the left eye, remove the shielding plate and block the right eye, when detecting the right eye, remove the shielding plate and block the left eye, because the front bezel rigidity, then the window rigidity, the person of measurationing can use the window to keep fixed as the benchmark, avoid the slope around the health or control the slope, change visual detection time measuring changing, only need remove the shielding plate and change the eye of sheltering from, the person of measurationing need not to move the head, guaranteed that detection distance and angle can not change, thereby visual detection's accuracy has been guaranteed.

Furthermore, the forehead positioning window with the protruding window edge can assist the forehead of the tested person to be limited, and the forehead is prevented from shaking, so that the eyes are prevented from shaking, and the accuracy of vision detection is improved.

The utility model discloses in the application, the shielding plate can be one, through controlling to remove and realize respectively about the sheltering from of eye, preferred, the shielding plate can be divided into left shielding plate and right shielding plate, left shielding plate shelters from the left eye, right shielding plate shelters from the right eye.

Other features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the invention, which is to be read in connection with the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a window for vision testing according to the present invention;

fig. 2 is an application schematic diagram of a window for vision inspection according to the present invention;

fig. 3 is a structural diagram of a window for vision inspection according to the first and second embodiments of the present invention;

fig. 4 is a device architecture diagram of the vision testing device according to the first and second embodiments of the present invention;

fig. 5 is a structural diagram of a window for eyesight test according to a third embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a window for eyesight detects sets up on a panel 1, and this window is including setting up window 2 and shielding plate 3 on panel 1: the shielding plate 3 is disposed at the front side or the rear side of the window 2 in a translatable structure to shield the left half part, the right half part or all of the window 2.

This a window for visual detection is used for visual detection time, as shown in fig. 2, panel 1 can require apart from visual chart S fixedly according to visual detection 'S distance, the person of being examined stands in panel 1 front side, remove eye to 2 front sides of window, observe visual chart S through window 2, when detecting the left eye, remove shielding plate 3 and block the right eye, when detecting the right eye, remove shielding plate 3 and block the left eye, because 1 rigidity of front bezel, then 2 rigidity of window, the person of being examined can use window 2 as the benchmark to keep fixed, it inclines or control the slope around avoiding the health, when changing the eye and examining, only need to remove shielding plate 3 and change the eye that shelters, the person of being examined need not to remove the head, guaranteed that detection distance and angle can not change, thereby visual detection' S accuracy has been guaranteed.

The translatable structure is any structure that can translate the shielding plate 3 with respect to the window 2 under a force, and the translation includes, but is not limited to, moving up, moving down, moving left, and moving right with respect to the window 2. The shielding plate 3 can be manually operated to translate, also can realize the translation based on the drive of actuating mechanism, and actuating mechanism is controlled by the master controller of vision detection device, and concrete translation control mode technical personnel in the field can realize according to prior art application, the utility model discloses not specifically inject.

The window for vision testing of the present invention is described in detail with several embodiments.

Example one

As shown in fig. 3, in the present embodiment, the shielding plate 3 is divided into a left shielding plate 31 and a right shielding plate 32, the left shielding plate 31 shields the left half of the window 2 with a translatable structure, and the right shielding plate 32 shields the right half of the window 2 with a translatable structure.

The structure for realizing the translation of the left baffle plate 31 and the right baffle plate 32 is a baffle plate track 4, and the baffle plate track 4 is arranged at the front side or the rear side (the rear side in the figure) of the window 2; the left shutter 31 and the right shutter 32 are mounted on the shutter rail 4, and can be translated based on the guidance of the shutter rail 4.

A toggle button 33 is respectively arranged on the left shielding plate 31 and the right shielding plate 32, and the testee can move the left shielding plate 31 or the right shielding plate 32 by toggling the toggle button 33.

In this embodiment, this a window for eyesight detects is applied to in an eyesight detection device as shown in fig. 4, and this eyesight detection device includes front bezel 51, back plate 52 and connects the confined eyesight detection passageway 53 between front bezel 51 and back plate 52, the utility model provides a panel is front bezel 51 among this eyesight detection device promptly, and the front side of back plate 52 sets up the display screen that shows the eyesight detection icon.

The vision detection channel 53 is set to be long according to vision detection requirements, and a standard vision detection distance is ensured between the front plate 51 and the rear plate 52; when using this visual acuity test apparatus to detect eyesight, the examinee moves the eye to the front side of the window, observes the visual acuity test icon on the display screen through the window and the visual acuity test channel 53.

As shown in fig. 3, when detecting the left eye, the right shielding plate 32 is moved to block the right eye, the left shielding plate 31 is kept not to shield the left eye, when detecting the right eye, the left shielding plate 31 is moved to block the left eye, the right shielding plate 32 is kept not to shield the right eye, because the front plate 51 is fixed in position, the position of the window 2 is fixed, the testee can be kept fixed by taking the window 2 as a reference, the front and back inclination or the left and right inclination of the body is avoided, when changing the eye detection, only the left shielding plate 31 or the right shielding plate 32 is needed to be moved to change the shielded eye, the testee does not need to move the head, the detection distance and the angle are ensured not to change, and the accuracy of vision detection is ensured.

When the left shielding plate 31 and the right shielding plate 32 are moved to be combined, the window 2 can be completely shielded, and substances such as dust can be prevented from entering the vision detection device from the window 2.

Example two

As shown in fig. 3, in this embodiment, on the basis of the window structure provided in the first embodiment, a forehead positioning window 6 protrudes from the edge of the window 2, the edge of the forehead positioning window 6 is designed with an arc, and the upper end of the forehead positioning window is further folded to form a forehead positioning baffle 7 for limiting the forehead of the person to be tested, so as to prevent the person to be tested from shaking his head from side to side during the testing period to deviate from the window, and also prevent the testing angle from changing due to eye movement, thereby ensuring the testing accuracy; the middle part of the bracket is provided with a stop bar 8 for blocking the left eye and the right eye to prevent detection interference.

EXAMPLE III

In the present embodiment, on the basis of the window structure provided in the first embodiment, the left shielding plate 31 and the right shielding plate 32 are disposed at the rear side of the front plate 51, as shown in fig. 5, two sliding grooves 9 are disposed on the front plate at the side of the window 2, and the toggle button 33 extends into the sliding groove 9 from the rear side of the front plate 51, so that the two shielding plates can be translated with the sliding grooves 9 as a guide, and when the toggle button 33 is a hand-screwed nut, the hand-screwed nut can be screwed to fix the shielding plates after the translation is completed.

It should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the present invention.

Claims (9)

1. The utility model provides a window for eyesight detects, sets up on a panel, its characterized in that includes:

the window is arranged on the panel;

the shielding plate is arranged on the front side or the rear side of the window in a translation structure and used for shielding the left half part, the right half part or all of the window;

the shielding plate includes:

a left shutter for blocking a left half of the window in a translatable configuration;

and the right shielding plate shields the right half part of the window in a translation structure.

2. The viewing window for vision testing of claim 1, further comprising:

the shielding plate track is arranged on the front side or the rear side of the window;

the shielding plate is arranged on the shielding plate rail and can translate based on the shielding plate rail.

3. The viewing window for visual inspection of claim 1, wherein a forehead positioning window protrudes from the edge of the window.

4. The viewing window for visual inspection according to claim 3, wherein the forehead positioning window is folded over to form a forehead positioning stop.

5. The window for visual inspection as claimed in claim 1, wherein the shutter is provided with a toggle button.

6. The window for eyesight test as claimed in claim 1, wherein the shielding plate is connected to a driving mechanism, the driving mechanism is controlled by a main controller of the eyesight test device where the window for eyesight test is located, and is used for driving the shielding plate to translate.

7. The window for visual acuity detection of claim 5, wherein the window is open on the panel, and the baffle is disposed at the rear side of the panel;

the panel on the side edge of the window is provided with a sliding groove, and the shifting buckle is arranged in the sliding groove.

8. The window for visual inspection of claim 7, wherein the catch is a hand nut.

9. The window for visual inspection of claim 3, wherein a stop strip is disposed in the middle of the forehead positioning window.

Images