CN111568364A - Vision detection device - Google Patents
Vision detection device Download PDFInfo
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- CN111568364A CN111568364A CN202010254986.0A CN202010254986A CN111568364A CN 111568364 A CN111568364 A CN 111568364A CN 202010254986 A CN202010254986 A CN 202010254986A CN 111568364 A CN111568364 A CN 111568364A
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- rotatory
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- shell frame
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- 230000004438 eyesight Effects 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 title abstract description 5
- 230000000007 visual effect Effects 0.000 claims abstract description 28
- 239000003381 stabilizer Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a vision detection device, comprising: the box and a plurality of rotatory shells, the front side of box is provided with the opening, interval arrangement sets up in the box about a plurality of rotatory shells are, and rotatory shells include four and are lath-shaped light-passing boards, and four light-passing boards are connected and are formed the rotatory shell of cuboid form, and both ends are connected with first slewing mechanism and second slewing mechanism respectively about the rotatory shell, have pasted the sighting mark symbol at the lateral wall of light-passing board, install the fluorescent tube in rotatory shell. The accessible rotates rotatory shell frame and switches different light-passing boards, thereby the direction of sighting mark symbol on the rotatory shell frame of free adjustment, the situation of the tester visual chart content under back in advance has been stopped, and all set up the fluorescent tube in every rotatory shell frame and throw light on, one need not all fluorescent tubes and opens simultaneously, play the effect of practicing thrift the charges of electricity, two come no matter rotate to that light-passing board and all can realize the illumination, need not to adjust and shine the angle, high durability and convenient use, the installation is made simply.
Description
Technical Field
The invention relates to the technical field of vision detection, in particular to a vision detection device.
Background
The visual chart is a graph for testing eyesight, several lines of letters (namely, the visual target symbols E) are printed on the graph of the traditional visual chart, the sizes of the visual target symbols E in all the lines are different, the opening directions of the visual target symbols E in each line are different, and the eyesight is judged according to the opening directions of the visual target symbols E which can be clearly seen. The visual target symbol E on the existing visual chart for detecting eyesight is that the opening direction of each line is fixed and unchangeable, people with detected eyesight can easily recite the visual target symbol in advance, so that the detected eyesight data is not real, in addition, the traditional visual chart is also provided with an illumination function, one illumination lamp is arranged inside, the other illumination lamp is arranged outside, the lamps in the visual chart arranged inside the illumination lamp are required to be completely turned on when the visual chart is tested, the number of the illumination lamps is large, the whole visual chart is required to be completely covered, and the illumination lamps are turned on simultaneously, so that power consumption is caused; the light sets up the visual chart in inside when the test, and the reflection of light appears easily on the surface of direct irradiation visual chart like this, influences the test for the angle of illumination of light needs to pass through accurate setting, and this precision that leads to the installation improves, makes the cost improve.
Disclosure of Invention
The present invention is directed to a vision testing apparatus, which solves one or more of the problems of the prior art and provides at least one of the advantages of the present invention.
The technical scheme adopted for solving the technical problems is as follows:
a vision testing device comprising: the box body and the plurality of rotary shell frames are arranged, and an opening is formed in the front side of the box body; extend the setting about rotatory shell frame is, and interval arrangement sets up in the box about a plurality of rotatory shell frames are, rotatory shell frame includes four and is lath-like light-passing boards, and four light-passing boards are the rotatory shell frame of rectangular connection formation cuboid form, both ends are connected with first slewing mechanism and second slewing mechanism respectively about rotatory shell frame, both ends rotate through left side wall, the right side wall of first slewing mechanism, second slewing mechanism and box respectively about rotatory shell frame is connected the sighting mark symbol is pasted to the lateral wall of light-passing board install in the rotatory shell frame and be about being the fluorescent tube that extends.
As a further improvement of the above technical scheme, first slewing mechanism is including being fixed in first end plate on the rotatory chassis left end, with box left side wall fixed connection's connecting cylinder the middle part of first end plate is provided with first rotation hole, first end plate rotates through first rotation hole and connecting cylinder to be connected fixed mounting has the electric plug in the connecting cylinder, the left end and the electric plug of fluorescent tube are connected, second slewing mechanism is including being fixed in the second end plate on the rotatory chassis left end, the middle part in the second end plate outside is fixed with rotates the axis of rotation of being connected with box right side wall, the axis of rotation is with the coaxial setting in first rotation hole.
As a further improvement of the technical scheme, a first limiting sleeve is sleeved on the outer side of the connecting cylinder and arranged between the first end plate and the left side wall of the box body.
As a further improvement of the technical scheme, a second limiting sleeve is sleeved on the outer side of the rotating shaft and arranged between the second end plate and the right side wall of the box body.
As a further improvement of the technical scheme, the right side wall of the box body is provided with a plurality of second rotating holes, the second rotating holes correspond to the rotating shafts one by one, the rotating shafts are rotatably connected with the second rotating holes, and the outer ends of the rotating shafts are coaxially connected with the hand-cranking disc after penetrating through the second rotating holes.
As a further improvement of the technical scheme, a plurality of connecting holes are formed in the right side wall of the box body, the connecting holes correspond to the connecting cylinders one to one, and the connecting cylinders are fixed in the connecting holes.
As a further improvement of the technical scheme, a current stabilizer is fixed on the outer side of the connecting hole and is electrically connected with the electric plug through a lead.
As a further improvement of the above technical solution, a plurality of outwardly extending fixing tabs are fixed to the edge of the rear side of the box body.
The invention has the beneficial effects that: when in use, different visual target symbols are pasted on the corresponding light-transmitting plates, specifically, the size of the visual target symbol on each rotary shell frame is different, and the direction of the visual target symbol on each light-transmitting plate of one rotary shell frame is different, thereby switching different light-transmitting plates by rotating the rotary shell frame, freely adjusting the direction of the visual target symbols on the rotary shell frame, putting an end to the condition that a tester carries out visual chart contents in advance, so as to improve the accuracy of the test, and the lamp tubes are arranged in each rotary shell frame for illumination, the light emitted by the lamp tubes is transmitted out through the light-transmitting plate, when detecting on the rotatory shell frame that corresponds, just open the fluorescent tube that corresponds, firstly need not all fluorescent tubes and open simultaneously, play the effect of practicing thrift the charges of electricity, no matter rotate to that light-passing board can all realize the illumination, need not the adjustment and shine the angle, convenient to use, installation manufacturing is simple.
Drawings
The invention is further described with reference to the accompanying drawings and examples;
FIG. 1 is a front view of an embodiment of a vision testing device provided by the present invention;
FIG. 2 is a partial enlarged view B of FIG. 1;
fig. 3 is a partial enlarged view C of fig. 1;
fig. 4 is a sectional view a-a in fig. 1.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 4, a vision testing apparatus of the present invention is made as follows:
a vision testing device comprising: a box body 100 and a plurality of rotary shell frames 200, wherein an opening is arranged at the front side of the box body 100; extend the setting about rotatory shell frame 200 is, and a plurality of rotatory shell frames 200 are about interval arrangement and set up in box 100, rotatory shell frame 200 includes that four are lath-shaped light-passing board 210, and four light-passing boards 210 are the rotatory shell frame 200 of rectangular connection formation cuboid form, both ends are connected with first slewing mechanism and second slewing mechanism respectively about rotatory shell frame 200, both ends rotate through the left side wall, the right side wall of first slewing mechanism, second slewing mechanism and box 100 respectively about rotatory shell frame 200 be connected visual mark symbol 211 is pasted to the lateral wall of light-passing board 210 install the fluorescent tube 220 that extends about being in rotatory shell frame 200.
When in use, different visual target symbols 211 are attached to the corresponding light-transmitting plates 210, specifically, the size of the visual target symbols 211 on each rotary shell frame 200 is different, and the direction of the visual target symbols 211 on each light-transmitting plate 210 of one rotary shell frame 200 is different, so that different light-transmitting plates 210 can be switched by rotating the rotary shell frame 200, thereby freely adjusting the direction of the visual target symbols 211 on the rotary shell frame 200, avoiding the condition that a tester carries out the content of a visual chart in advance, further improving the accuracy of the test, and arranging the lamp tubes 220 in each rotary shell frame 200 for illumination, the light emitted by the lamp tubes 220 is transmitted out through the light-transmitting plates 210, when the corresponding rotary shell frame 200 is detected, the corresponding lamp tubes 220 are opened, so that all the lamp tubes 220 are not required to be opened simultaneously, the effect of saving electricity charges is achieved, and illumination can be achieved no matter which light-transmitting plate 210 is rotated, the irradiation angle does not need to be adjusted, the use is convenient, and the installation and the manufacture are simple.
In some embodiments, the first rotating mechanism includes a first end plate 230 fixed to the left end of the rotating housing 200, and a connecting cylinder 240 fixedly connected to the left sidewall of the housing 100, a first rotating hole 280 is formed in the middle of the first end plate 230, the first end plate 230 is rotatably connected to the connecting cylinder 240 through the first rotating hole 280, an electric plug 241 is fixedly installed in the connecting cylinder 240, the left end of the lamp 220 is connected to the electric plug 241, the second rotating mechanism includes a second end plate 250 fixed to the left end of the rotating housing 200, a rotating shaft 260 rotatably connected to the right sidewall of the housing 100 is fixed to the middle of the outside of the second end plate 250, and the rotating shaft 260 is coaxially arranged with the first rotating hole 280. The first end plate 230 is rotatably connected to the connecting cylinder 240 through the first rotation hole 280, so that the rotation of the rotating housing 200 can be realized, and the lamp 220 does not need to rotate, thereby reducing the difficulty in mounting the lamp 220 because the connecting wires are twisted if the lamp 220 needs to rotate.
In some embodiments, a first stop collar 242 is sleeved on the outer side of the connecting cylinder 240, and the first stop collar 242 is disposed between the first end plate 230 and the left side wall of the box 100. The first end plate 230 abuts against the left side wall of the box 100 through the first stop collar 242, and plays a role of limiting in the left direction and also plays a role of clamping and positioning.
In some embodiments, a second stop collar 261 is sleeved on the outer side of the rotation shaft 260, and the second stop collar 261 is disposed between the second end plate 250 and the right side wall of the box 100. The second position-limiting sleeve 261 can play a position-limiting role in the right direction.
In some embodiments, a plurality of second rotation holes are formed in the right side wall of the box 100, the second rotation holes correspond to the rotation shafts 260 one to one, the rotation shafts 260 are rotatably connected to the second rotation holes, and the outer ends of the rotation shafts 260 are coaxially connected to the hand disc 262 after passing through the second rotation holes. The rotating housing 200 can be rotated by a hand-cranking plate 262.
In some embodiments, a plurality of connection holes 270 are formed in the right sidewall of the case 100, the connection holes 270 correspond to the connection barrels 240 one by one, and the connection barrels 240 are fixed in the connection holes 270.
In some embodiments, a current stabilizer 271 is fixed outside the connection hole 270, and the current stabilizer 271 is electrically connected to the electric plug 241 through a wire. The current stabilizer 271 mainly plays a role in stabilizing current, and improves the working stability of the lamp tube 220, namely, the luminous stability is improved, and the damage to eyes is reduced.
In some embodiments, a plurality of outwardly extending securing tabs 110 are secured to the rear side of the housing 100 at the edge thereof. The case 100 may be mounted on a wall by a plurality of fixing tabs 110.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (8)
1. A vision testing device, characterized by: the method comprises the following steps:
the refrigerator comprises a refrigerator body (100), wherein an opening is formed in the front side of the refrigerator body (100);
a plurality of rotatory shells frame (200), rotatory shell frame (200) are about being and extend the setting, and a plurality of rotatory shell frames (200) are interval arrangement about and set up in box (100), rotatory shell frame (200) are four and are lath-shaped light-passing board (210) including four, and four light-passing boards (210) are the rotatory shell frame (200) that rectangular connection formed the cuboid form, both ends are connected with first slewing mechanism and second slewing mechanism respectively about rotatory shell frame (200), both ends rotate through left side wall, the right side wall of first slewing mechanism, second slewing mechanism and box (100) respectively about rotatory shell frame (200) the lateral wall of light-passing board (210) has pasted visual target symbol (211) install fluorescent tube (220) that extend about being in rotatory shell frame (200).
2. A vision testing device as defined in claim 1, wherein: first rotation mechanism is including being fixed in first end plate (230) on rotatory chassis (200) left end, with box (100) left side wall fixed connection's connecting cylinder (240) the middle part of first end plate (230) is provided with first rotation hole (280), first end plate (230) rotate with connecting cylinder (240) through first rotation hole (280) and are connected connecting cylinder (240) fixed mounting has electric plug (241) in connecting cylinder (240), the left end and the electric plug (241) of fluorescent tube (220) are connected, second rotation mechanism is including being fixed in second end plate (250) on rotatory chassis (200) left end, the middle part in second end plate (250) outside is fixed with rotation axis (260) of being connected with box (100) right side wall rotation, rotation axis (260) and first rotation hole (280) coaxial arrangement.
3. A vision testing device as defined in claim 2, wherein: the outer side of the connecting cylinder (240) is sleeved with a first limiting sleeve (242), and the first limiting sleeve (242) is arranged between the first end plate (230) and the left side wall of the box body (100).
4. A vision testing device as defined in claim 2, wherein: the outer side of the rotating shaft (260) is sleeved with a second limiting sleeve (261), and the second limiting sleeve (261) is arranged between the second end plate (250) and the right side wall of the box body (100).
5. A vision testing device as defined in claim 2, wherein: the right side wall of box (100) is provided with a plurality of second and rotates the hole, the second rotates hole and axis of rotation (260) one-to-one, axis of rotation (260) rotate the hole with the second and rotate and be connected, the outer end of axis of rotation (260) passes behind the second rotation hole coaxial coupling have hand rocking disc (262).
6. A vision testing device as defined in claim 2, wherein: the right side wall of the box body (100) is provided with a plurality of connecting holes (270), the connecting holes (270) are in one-to-one correspondence with the connecting cylinders (240), and the connecting cylinders (240) are fixed in the connecting holes (270).
7. A vision testing device as defined in claim 6, wherein: a current stabilizer (271) is fixed on the outer side of the connecting hole (270), and the current stabilizer (271) is electrically connected with the electric plug (241) through a lead.
8. A vision testing device as defined in claim 1, wherein: a plurality of fixing lugs (110) extending outwards are fixed on the edge of the rear side of the box body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254986.0A CN111568364A (en) | 2020-04-02 | 2020-04-02 | Vision detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254986.0A CN111568364A (en) | 2020-04-02 | 2020-04-02 | Vision detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111568364A true CN111568364A (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010254986.0A Pending CN111568364A (en) | 2020-04-02 | 2020-04-02 | Vision detection device |
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| CN (1) | CN111568364A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740072A (en) * | 1986-01-29 | 1988-04-26 | Titmus Optical, Inc. | Vision testing apparatus |
| CN2095636U (en) * | 1991-05-20 | 1992-02-12 | 山东烟台医疗器械厂 | Rotary sight test instrument |
| CN2788737Y (en) * | 2005-05-19 | 2006-06-21 | 孙维真 | Eyesight test box with even light illumination |
| CN200994768Y (en) * | 2007-01-17 | 2007-12-26 | 孙谦 | Device for changing visual-chart sequence |
| CN102309311A (en) * | 2011-09-14 | 2012-01-11 | 张潇予 | Renewable visual chart |
| CN103099599A (en) * | 2012-11-13 | 2013-05-15 | 苏州雍阳装饰材料有限公司 | Rotating visual chart |
| CN203341719U (en) * | 2013-07-08 | 2013-12-18 | 屈阳 | Rotary drum type visual testing instrument |
-
2020
- 2020-04-02 CN CN202010254986.0A patent/CN111568364A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740072A (en) * | 1986-01-29 | 1988-04-26 | Titmus Optical, Inc. | Vision testing apparatus |
| CN2095636U (en) * | 1991-05-20 | 1992-02-12 | 山东烟台医疗器械厂 | Rotary sight test instrument |
| CN2788737Y (en) * | 2005-05-19 | 2006-06-21 | 孙维真 | Eyesight test box with even light illumination |
| CN200994768Y (en) * | 2007-01-17 | 2007-12-26 | 孙谦 | Device for changing visual-chart sequence |
| CN102309311A (en) * | 2011-09-14 | 2012-01-11 | 张潇予 | Renewable visual chart |
| CN103099599A (en) * | 2012-11-13 | 2013-05-15 | 苏州雍阳装饰材料有限公司 | Rotating visual chart |
| CN203341719U (en) * | 2013-07-08 | 2013-12-18 | 屈阳 | Rotary drum type visual testing instrument |
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Application publication date: 20200825 |