CN210323564U

CN210323564U - Reading and writing telegauge

Info

Publication number: CN210323564U
Application number: CN201920919261.1U
Authority: CN
Inventors: 戴明华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-14
Anticipated expiration: 2029-06-18

Abstract

The utility model provides a reading and writing televiewing instrument, which belongs to the technical field of optical instruments for preventing myopia and protecting eyesight. Mainly comprises a telescope cover and a supporting frame for supporting the telescope cover; the telescope cover comprises a main visual area of the eyes, the height of the main visual area is 50 mm-180 mm, and the width of the main visual area is 65 mm-250 mm; convex lenses are arranged on the periphery of the main visual area except the lower part, and are telephoto areas; the peripheral of the eyes can consciously see or unconsciously sense the object opposite to the convex lens to become far and enlarge when a reader reads and writes, and the main visual area is one or a pair of visual holes for reading and writing or watching. The utility model discloses can make the user read and write the reading and writing when the object that can all see convex lens face voluntarily or unconsciously becomes far away and enlargeing at no time, break away from near impression at any time, read and write the field of vision not restricted in addition, simple structure, convenient to use, treatment and prevention myopia effect preferred. It is suitable for reading and writing or watching computer and TV.

Description

Reading and writing telegauge

Technical Field

The utility model belongs to the technical field of optical instruments for preventing myopia and protecting eyesight, and is particularly suitable for reading and writing.

Background

The myopia is caused by long-time use of eyes of people in a near environment, students usually face a wall when sitting in front of a desk at home to study and read, and the students can see, look near and feel unconscious in the front, left and right directions all the time and do not get rid of the near feeling at any moment. Although the existing instruments for preventing and treating myopia are more, the effect and the application of the instruments are still greatly limited, some instruments are also complicated in structure, and the instruments are troublesome to manufacture and use. Causing a lot of inconvenience to the user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reading and writing telegauge can make the user read and write the characters when the untimely and untimely object that can see convex lens face becomes far away and enlargies, breaks away from near impression at any time, and the reading and writing field of vision is not restricted moreover, simple structure, convenient to use, treatment and prevention myopia effect preferred. It is suitable for reading and writing or watching computer and TV.

In order to achieve the above object, the utility model adopts the following technical scheme: read and write telegauge, its characterized in that: comprises a telescope cover and a supporting frame for supporting the telescope cover; the telescope cover comprises a main visual area of the eyes, the height of the main visual area is 50 mm-180 mm, and the width of the main visual area is 65 mm-250 mm; four radiation rays are made outwards from the geometric center of the main visual area or from the peripheral connecting line of the main visual area, the periphery of the eye hole is divided into 4 parts of upper part, left part, right part and lower part, convex lenses are arranged on the periphery of the main visual area except the lower part and are telescopic areas, and the peripheral edge of the eyes of a reader can consciously see or unconsciously feel that an object opposite to the convex lenses is zoomed in and zoomed out through the convex lenses while the reader reads and writes; the main visual area is one or a pair of reading and writing or sight holes.

Further, the convex lens of the telephoto region is 0.33D-2.50D.

Furthermore, the area of the convex lens of the telescope cover, namely the telescope area arranged on the periphery of the main visual area except the lower part can cover the peripheral visual field of the eyes except the lower part by more than 50 percent, and basically covers or completely covers the peripheral visual field of the eyes except the lower part.

Furthermore, the whole telescope cover, namely the whole shape of the telescope reflector arranged on the periphery of the main visual area except the lower part, is divided into a convex surface type, a concave surface type or a plane type.

Furthermore, the convex surface type has outer side surfaces of the prism table, and each outer side surface is a convex lens or a convex curved surface; the concave surface type has inner side surfaces of the prism table, and each inner side surface is a convex lens or a concave curved surface; the prismatic table is a non-regular 4 prismatic table or a non-regular polygonal table.

Furthermore, the area of the non-regular 4-edge frustum is the smallest below, the area of the non-regular 4-edge frustum is the largest above, and the area of the non-regular 4-edge frustum is the smallest below.

Furthermore, the support frame also comprises a telescopic cover lifting adjusting mechanism and/or a telescopic cover angle adjusting mechanism which can be adjusted to a proper reading and writing position of a reader; a reading and writing bedplate is arranged opposite to the sight hole; the reading and writing bedplate comprises an inclined reading and writing bedplate; a lower jaw supporting plate is arranged below the eye sight hole; the lower jaw supporting plate is an up-down lifting type or eccentric lifting type lower jaw supporting plate.

Further, one or a pair of lenses are arranged at and/or behind the main visual area, and the lenses comprise convex lenses, concave lenses, Fresnel lenses, flat lenses, bifocal lenses and multifocal lenses.

Furthermore, the power of the convex lens is 0.25D to 2.50D; furthermore, the power of the convex lens is 0.50D to 1.50D.

Furthermore, a lens or a lens group is arranged at the main visual area and/or behind the main visual area, and the power of the lens or the lens group can correct ametropia of the eye, and has the functions of enlarging and zooming out the image of a convex lens or the functions of reducing and enlarging the visual field of a concave lens, so that the depth of field is increased.

The utility model discloses because can make the peripheral field of vision look far or experience distance light at any time when reading and writing, see the object that convex lens is opposite to promptly and become far away and enlarge, so treatment and prevention myopia effect preferred, read and write convenient being suitable for simultaneously.

The utility model provides a reading and writing televiewing appearance's beneficial effect lies in: compared with the prior art, the utility model discloses can make the user read and write the reading and writing the time and can all be seen more distant thing or experience the light of more distant place voluntarily or unconsciously at all times, see the object of convex lens opposite side and become far away and enlarge voluntarily or unconsciously promptly, break away from near impression at any time, and the reading and writing field of vision is not restricted moreover, simple structure, convenient to use, treatment and prevention myopia effect are preferred. It is suitable for reading and writing or watching computer and TV.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 4 is a view in the direction a of the convex or concave terrace structure of fig. 1.

FIG. 5 is a view from direction B of the convex curved surface structure or the concave curved surface structure shown in FIG. 3.

Fig. 6 is a schematic structural view of embodiment 3 of the present invention.

The meanings of each mark in the figure are as follows: 1-a support frame, 2-a lifting mechanism, 3-a main visual area (one or a pair of visual holes for reading and writing or seeing), 4-a convex telescope cover, 5-a book placing reading and writing table board, 6-a convex or concave frustum telescope cover, 6-1-an upper board, 6-2-a left board, 6-3-a right board, 6-4-a lower board (a black curtain, a connecting board or a connecting frame), 7-a convex or concave frustum telescope cover, 7-1-a lower board (a black curtain, a connecting board or a connecting frame), 8-a concave telescope cover, 9-a flat telescope cover, 10-a lower supporting board, a seat and lifting adjusting structure, 11-a convex lens or a lens group, 12-a convex lens or a seat body, 13-a convex lens or a lens group screw gland, 14-connecting rod, 15-long hole, 16-computer or television position indication.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present invention will now be described with reference to fig. 1-6. As a specific embodiment of the present invention, the reading and writing telegauge is characterized in that: comprises a telescope cover and a supporting frame 1 for supporting the telescope cover; the telescope cover comprises a main visual area 3 of the eyes, the height of the main visual area is 50 mm-180 mm, and the width of the main visual area is 65 mm-250 mm; four radiation rays are made outwards from the geometric center of the main visual area 3 or from the peripheral connecting line of the main visual area, the periphery of the eye is divided into 4 parts of upper part, left part, right part and lower part, convex lenses are arranged on the periphery of the main visual area 3 except the lower part and are telescopic areas, and the peripheral edges of the eyes of a reader can consciously see or unconsciously feel that objects opposite to the convex lenses are zoomed in and zoomed out through the convex lenses when the reader reads and writes; the main viewing zone 3 is one or a pair of reading, writing or viewing eyeholes.

When the main visual area 3 is a pair of visual holes for reading, writing or seeing, the holes 2 can be separated by a frame.

The device can enable a user to see far things or feel light rays at far positions unconsciously or unconsciously when reading and writing words, namely see that an object opposite to the convex lens becomes far and enlarged, and get rid of near feeling at any time, and the reading and writing visual field is not limited, and the device has the advantages of simple structure, convenient use and good myopia treatment and prevention effects.

As a specific embodiment of the present invention, further, the telephoto region convex lens is 0.33D to 2.50D.

As a specific embodiment of the present invention, further, the area of the convex lens of the telephoto region, which is peripherally disposed outside the lower side in the main viewing region 3, of the telephoto cover can cover the peripheral visual field of the eye except the lower side by more than 50%, basically or fully.

As a specific embodiment of the present invention, further, the whole of the telescope cover, that is, the whole shape of the telescope reflector disposed on the periphery of the main viewing area 3 except the lower side, is divided into a convex type, a concave type or a planar type.

As a specific embodiment of the present invention, further, the convex surface type includes a part of the outer side surface of the prism table (as shown in fig. 4), or includes a part of the convex curved surface (as shown in fig. 5); the concave surface comprises part of the inner side surface of the frustum pyramid (as shown in figure 4) or comprises part of a concave curved surface (as shown in figure 5); the prismatic table is a non-regular 4 prismatic table or a non-regular polygonal table. The multi-edge platform (including 3-edge platform and multi-edge platform).

As a specific embodiment of the present invention, further, as shown in fig. 4, the non-regular 4-sided prism has the smallest area below, the second area from left to right, and the largest area above, as shown in fig. 4.

As a specific embodiment of the present invention, further, the support frame 1 further includes a telescopic cover lifting adjusting mechanism and/or a telescopic cover angle adjusting mechanism, and can adjust the suitable reading and writing position of the reader/writer.

As a specific embodiment of the present invention, further, a reading/writing desk board for placing books is provided opposite to the eye hole.

As a specific embodiment of the present invention, further, the book placing, reading and writing platen includes an inclined book placing, reading and writing platen.

As a specific embodiment of the present invention, further, a lower jaw supporting plate is disposed below the eye sight hole.

As a specific embodiment of the present invention, further, the lower jaw supporting plate is an up-down lifting type or an eccentric lifting type.

As a specific embodiment of the present invention, further, one or a pair of lenses is/are disposed at and/or behind the main viewing area 3, and the lenses include convex lenses, concave lenses, fresnel lenses, plano lenses, bifocal lenses and multifocal lenses; or an aspheric lens, or a cylindrical lens, a prism and a blue light prevention lens; or a combination of two or more thereof.

As a specific embodiment of the present invention, further, the number of the convex lens ranges from 0.25D to 2.50D; furthermore, the power of the convex lens is 0.50D to 1.50D.

As a specific embodiment of the present invention, further, the main viewing area and/or the back is provided with a lens or a lens group, and the power of the lens or the lens group is not only capable of correcting ametropia of the eye, but also capable of enlarging the image of the convex lens and increasing the distance, or capable of reducing the image of the concave lens and increasing the field of view, thereby increasing the depth of field.

As a specific embodiment of the present invention, the concave lens has an image reducing function and a visual field expanding function, and can be used for watching large televisions and the like, which are sometimes very desirable.

The utility model is suitable for reading and writing or watching computer and television, and can prevent and cure myopia.

As a specific embodiment of the present invention, the following is described in detail.

Referring to fig. 4, 6-1-upper plate, 6-2-left side plate, 6-3-right side plate, each is a convex lens, and the 6-4-lower plate may or may not be a convex lens.

Referring to fig. 1-6, the utility model can make the user can watch the object facing the convex lens to be farther and enlarged without feeling or unconsciously when reading and writing, and get rid of the feeling of being near at any time, the effect of treating and preventing myopia is better, and the reading and writing is convenient and applicable.

The convex lens or the magnifying effect of the convex lens only aims to make the object to be viewed have the magnifying effect, so that the reader can read and write more conveniently and saves labor.

The convex lens in the telephoto region can be a positive horn mouth and a negative horn mouth, and the angle of the convex lens can ensure that a reader can read and write while the periphery of eyes can consciously or unconsciously see that an object opposite to the convex lens is farther and enlarged.

As shown in fig. 2, the convex lens or lens group 11 is housed in a holder 12 and a screw cover 13, and the holder 12 is fixed to the back surface of the lower side of the telescope cover 4 by screws. Or can be fixed on the base 1. The lower jaw supporting plate and the base are arranged on the upper part of a bent rod of the screw deflection lifting adjusting mechanism, and the lower part of the bent rod is locked in a strip-shaped hole (shown in the figure) on the upper part of the lifting adjusting mechanism by a screw. The lifting mechanism 2 comprises a lifting rod, and the lifting rod is locked on a cylinder seat of the lifting mechanism by a screw (shown in the figure); or other lifting mechanisms. When the area of the convex lens 11 is large, the computer can be seen conveniently, as shown in fig. 6.

A convex lens or lens group 11 may be incorporated in the structure of fig. 3 and 6. The figure is omitted.

The telescoping cover elevation adjustment mechanism and the telescoping cover angle adjustment mechanism may also be incorporated into the structure of fig. 3 and 6. The figure is omitted.

The support frame 1 is a seat type frame; the seat type frame can be folded and portable. Or the supporting frame 1 is a hanging frame and is fixedly hung on a roof or a wall. Or the support frame 1 is handheld.

Referring to fig. 4 and 5, the lower plate 6-4, or the lower side plate 7-1, is a black screen, or a connecting plate, or a connecting frame, and the support frame 1 is fixed to the telescoping cover through the connecting frame or the connecting plate, or directly fixed to the upper, left, or right side of the telescoping cover.

In use, the distance between the eye and the main viewing area 3 is also adjusted to facilitate the desired use.

Such as to take astigmatism into account when formulating spectacles for astigmatic patients.

The eye sight hole is: an aperture, a lens. The lens includes: plano-lenses, concave lenses, convex lenses, cylindrical lenses, prisms, fresnel lenses, bifocal and multifocal lenses, aspheric lenses, lens groups, anti-blue lenses, and the like. The height of the main reading and writing visual area 3 is 30 mm-150 mm, and the width is 60 mm-300 mm. The width from the main reading and writing visual area to the outer boundary of the telescope cover is 30 mm-1000 mm.

The reading and writing bedplate is used for reading and writing books and is of a ramp type or a flat type.

The convex lens is a spherical convex lens, or an aspherical convex lens, or a part of a convex lens.

The eye sight hole can also be a lens which can prevent and control the myopic periphery defocusing, etc.

A frame is arranged on a telescope cover of the reading and writing telescope or a supporting frame for supporting the telescope cover, and an illumination circuit, a lamp, a control dimming circuit and the like can be arranged on the frame for illumination during reading and writing.

When in use, the reflecting mirror or the long-distance scenery picture and the like can be fully distributed on the room (roof), the left and the right (surrounding wall surfaces) or all the walls and the top surfaces of the room, thus leading people to be completely positioned in the long-distance scenery and achieving good visual effect.

The utility model improves the sitting posture, corrects the body shape and can prevent the cervical vertebra and the lumbar from going wrong.

The utility model discloses the experiment report

1. Grouping experiments: (experiment time 4 years)

The effect of the invention is compared with the prior art using ZL200410098856.3 special near defocusing visual object training myopia prevention and treatment device products on the market. The test group was divided into 200 individuals of the invention and 200 individuals of the control group.

1) The first control group is a 4-12 year old child myopia and astigmatism patient, the utility model comprises 100 experimental groups and 100 comparison groups.

2) The second control group is a 13-20 year old teenager with myopia and astigmatism, the utility model comprises 100 experimental groups and 100 comparison groups.

2. The experimental method comprises the following steps: the table board can be used for reading and writing table cases, and for learning and games of computers, AIPs and mobile phones according to the same conditions. Experiment time: not less than 3 hours per day. The results were checked after 4 years and compared.

The experimental group of the utility model uses the instrument of

embodiment

1, 3 or 6.

Within 4 years, regular inspection: and analyzing the change condition of the eye diopter through items such as subjective refraction and objective refraction.

3. The experimental results are as follows:

1) and the curative effect standard is as follows:

and (3) the effect is shown, the objective optometry degree is not increased, the corrected vision looks at the visual chart at the speed of 1 second, the vision is checked to be not reduced, the eye axis acceleration is lower than the average experience growth value of the same age, and B super-junction fruits are not abnormally changed.

Effective-the increase of the objective refraction number is lower than the average growth value of the same age, the corrected eyesight looks at the visual chart at the speed of 1 second, the eyesight is checked to be not reduced, the eye axis acceleration is lower than the average experience growth value of the same age, and the B-super-junction fruit has no abnormal change.

Invalid- -the increase of the objective refraction number reaches the average increase value of the same age, the vision is corrected according to the speed of 1 second, the visual chart is watched, the visual deterioration is checked, the eye axis speed increase is equal to the average experience increase value of the same age, and the result of the type-B ultrasonic is changed or not.

2) And the inspection result:

1) first control group: the experimental group comprises 100 persons, 81 persons with significant effect, 18 persons with effective effect and 1 person with ineffective effect.

Comparative group 100: 28 effective, 47 effective and 25 ineffective.

2) Second control group: the experimental group comprises 100 persons, 69 persons with effect, 30 persons with effect and 1 person with no effect.

Comparative group 100 persons: 34 effective persons, 34 effective persons and 32 ineffective persons.

And (4) analyzing results:

and (4) experimental conclusion: all 200 persons in the experimental group, the children who use the utility model to completely prevent diopter increase have breakthrough progress, reach 150 persons, account for 75% (approximately to be regarded as inhibiting the growth rate of the axis of the eye). Whereas all 200 persons in the control group, the children who completely prevented the diopter increase with the prior art contrast were 62 persons, accounting for 31%. The utility model has obvious curative effect.

Experimental group analysis of null cases: it is related to poor inheritance and behavior habits.

Claims

1. Read and write telegauge, its characterized in that: comprises a telescope cover and a supporting frame (1) for supporting the telescope cover; the telescope cover comprises a main visual area (3) of the eyes, the height of the main visual area is 50 mm-180 mm, and the width of the main visual area is 65 mm-250 mm; four radiant rays are made outwards from the geometric center of the main visual area (3) or from the peripheral connecting line of the main visual area, the periphery of the eye is divided into 4 parts of upper part, left part, right part and lower part, convex lenses are arranged on the periphery of the main visual area (3) except the lower part and are telescopic areas, and the peripheral of the eyes of a reader can consciously see or unconsciously sense the object opposite to the convex lenses to be far away and enlarged through the convex lenses when the reader reads and writes.

2. The read-write telescopic instrument of claim 1, wherein: the convex lens of the telephoto region is 0.33D-2.50D.

3. The read-write telescopic instrument of claim 1, wherein: the area of the telescopic cover, namely the convex lens of the telescopic area arranged on the periphery of the main visual area (3) except the lower part can cover more than 50 percent of the peripheral visual field of the eyes except the lower part, and basically covers or completely covers the peripheral visual field of the eyes.

4. The read-write telescopic instrument of claim 3, wherein: the overall shape of the telescope cover is divided into a convex surface type, a concave surface type or a plane type.

5. The read-write telescopic instrument of claim 4, wherein: the convex surface type prism is provided with outer side surfaces of the prism tables, and each outer side surface is a convex lens or a convex curved surface; the concave surface type has inner side surfaces of the prism table, and each inner side surface is a convex lens or a concave curved surface; the prismatic table is a non-regular 4 prismatic table or a non-regular polygonal table.

6. The read-write telescopic instrument of claim 5, wherein: the non-regular 4-edge table has the smallest area below, the second area from left to right and the largest area above.

7. The read-write telescopic instrument of claim 1, wherein: the support frame (1) also comprises a telescopic cover lifting adjusting mechanism and/or a telescopic cover angle adjusting mechanism which can be adjusted to a proper reading and writing position of a reader; a lower jaw supporting plate is arranged below the eye sight hole; the lower jaw supporting plate is an up-down lifting type or eccentric lifting type lower jaw supporting plate.

8. The read-write telescopic instrument of any one of claims 1-7, wherein: one or a pair of lenses are arranged at and/or behind the main visual area (3), and the lenses comprise convex lenses, concave lenses, Fresnel lenses, flat lenses, bifocal lenses and multifocal lenses.

9. The read-write telescopic instrument of claim 8, wherein: the power of the convex lens is 0.25D to 2.50D; the power of the convex lens is 0.50D to 1.50D.

10. The read-write telescopic instrument of any one of claims 1-7, wherein: the main visual area and/or the back of the main visual area is/are provided with a lens or a lens group, the power of the lens or the lens group can correct the ametropia of the eye, and the lens or the lens group also has the functions of enlarging and zooming the image of a convex lens or the functions of reducing and enlarging the visual field of a concave lens, and the function of increasing the depth of field.