CN210810963U - Diffusion degree detection indicating device of comprehensive optometry instrument - Google Patents
Diffusion degree detection indicating device of comprehensive optometry instrument Download PDFInfo
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- CN210810963U CN210810963U CN201921475764.0U CN201921475764U CN210810963U CN 210810963 U CN210810963 U CN 210810963U CN 201921475764 U CN201921475764 U CN 201921475764U CN 210810963 U CN210810963 U CN 210810963U
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Abstract
The utility model discloses a diffusion degree detection indicating device of a comprehensive optometry instrument, which comprises an optometry instrument body, an external auxiliary lens, an ocular lens and a cylindrical lens adjusting hand wheel, wherein the external auxiliary lens, the ocular lens and the cylindrical lens adjusting hand wheel are respectively positioned on the optometry instrument body; the external auxiliary mirror comprises a crossed cylindrical mirror, a prism and a hinged mounting part; the crossed cylindrical mirror comprises an outer ring, an inner ring and a turnover wheel, the turnover wheel drives the inner ring to turn over inside the outer ring, a contact main switch is arranged on the outer ring and is positioned on the outer ring and faces one side of the eyepiece; the contact master switch is turned on when the crossed cylindrical lens and the ocular lens are overlapped, and the indicating lamp is turned on. Has the advantages that: the utility model discloses an install the pilot lamp additional on synthesizing the refractometer and can more audio-visual help optometrist differentiate the direction problem of astigmatic axis position and number of degrees addition and subtraction, the optometry efficiency and the accuracy of astigmatic axis position and number of degrees in the improvement refraction inspection that can be better.
Description
Technical Field
The invention relates to a component of a comprehensive optometry instrument, in particular to a astigmatism detection indicating device of the comprehensive optometry instrument, and belongs to the technical field of eye optometry equipment.
Background
As the eyes of human beings use excessive eyes to cause ametropia in the life and study process, the ametropia is divided into three categories of myopia, hyperopia and astigmatism. In order to carry out correction by wearing eyes before people's daily life is not influenced, the diopter correction power of a tested person needs to be determined before fitting, a phoropter bull eye needs to be used for photometric detection, wherein an astigmatism axis and an astigmatism power are confirmed by using an external crossed cylindrical mirror on the phoropter, and an inspector needs to turn the crossed cylindrical mirror to judge the position state of the crossed cylindrical mirror in an inspection process to adjust the astigmatism axis and the astigmatism power. In the existing structure, the horizontal limit of an inspector is not easy to judge the direction of axial position adjustment and the addition or subtraction of degrees, so that misjudgment is easy to cause, and the accuracy of a final prescription is influenced.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects of the prior art and provides the astigmatism detection indicating device of the comprehensive refractometer, which can assist a refractometer to judge the axial position and the adjusting direction of the current crossed cylindrical mirror.
The technical scheme is as follows: a diffusion degree detection indicating device of a comprehensive optometry instrument comprises an optometry instrument body, an external auxiliary lens, an ocular lens and a cylindrical lens adjusting hand wheel, wherein the external auxiliary lens, the ocular lens and the cylindrical lens adjusting hand wheel are respectively positioned on the optometry instrument body; the external auxiliary mirror comprises a crossed cylindrical mirror, a prism and a hinged mounting part, the crossed cylindrical mirror and the prism are respectively fixed at two ends of the hinged mounting part, and the crossed cylindrical mirror and the prism are alternately overlapped with the ocular lens through the rotation of the hinged mounting part; the crossed cylindrical mirror comprises an outer ring, an inner ring and a turnover wheel, the turnover wheel drives the inner ring to turn over inside the outer ring, the outer ring is fixedly connected with the hinged installation part, a contact main switch is arranged on the outer ring, and the contact main switch is positioned on the outer ring and faces one side of the eyepiece; the contact master switch is turned on when the crossed cylindrical lens and the ocular lens are overlapped, and the indicating lamp is turned on. The indicator light reminds an optometrist that the current comprehensive optometry instrument is in a astigmatism detection state.
Preferably, in order to further facilitate the judgment of the optometrist on the axial direction of the cylindrical lens, the indicator lamp comprises a positive axis indicator lamp and a negative axis indicator lamp, a contact switch is arranged on the inner diameter of the outer ring, and the contact switch controls the switching of the positive axis indicator lamp and the negative axis indicator lamp; the outer diameter of the inner ring is provided with a groove, the position of the groove corresponds to the position of the contact switch, the contact switch is positioned in the groove and does not contact with the inner ring when the inner ring is overlapped with the outer ring, and no groove is arranged on the outer diameter of the other side of the overturning inner ring corresponding to the contact switch. Whether the contact through contact switch and recess is to the state of the inner ring of crossing cylindrical mirror place suggestion, can be more audio-visual remind optometrist whether positive axle or negative axis at present.
Preferably, in order to further facilitate the calibration of the astigmatism degree by the optometrist, two opposite arrow indicator lamps are arranged on the optometry unit body along the circumferential direction of the cylindrical lens adjusting hand wheel, when the positive axis indicator lamp is turned on, a corresponding one of the arrow indicator lamps is also turned on at the same time, and when the positive axis indicator lamp is turned on, the other arrow indicator lamp is also turned on at the same time. After the axial direction of the cylindrical lens is determined, the adjustment of the degree needs to be adjusted by rotating the cylindrical lens adjusting hand wheel, but the adjusting directions of the axial different cylindrical lens adjusting hand wheels are opposite, and the arrow indicator lamp can accurately remind an optometrist to adjust the direction.
Has the advantages that: the utility model discloses an install the pilot lamp additional on synthesizing the refractometer and can more audio-visual help optometrist differentiate the direction problem of astigmatic axis position and number of degrees addition and subtraction, the optometry efficiency and the accuracy of astigmatic axis position and number of degrees in the improvement refraction inspection that can be better.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the crossed cylindrical mirror of the present invention.
Detailed Description
Embodiments will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the astigmatism detection indicating device of the comprehensive optometry instrument comprises an optometry instrument body 1, an external auxiliary lens 2, an ocular lens 3 and a cylindrical lens adjusting hand wheel 4, wherein the external auxiliary lens 2, the ocular lens 3 and the cylindrical lens adjusting hand wheel 4 are respectively positioned on the optometry instrument body 1; the external auxiliary mirror 2 comprises a crossed cylindrical mirror 5, a prism 6 and a hinged mounting part 7, the crossed cylindrical mirror 5 and the prism 6 are respectively fixed at two ends of the hinged mounting part 7, and the crossed cylindrical mirror 5 and the prism 6 are alternately overlapped with the ocular lens 3 through the rotation of the hinged mounting part 7; the crossed cylindrical mirror 5 comprises an outer ring 51, an inner ring 52 and a turnover wheel 53, the turnover wheel 53 drives the inner ring 52 to turn over inside the outer ring 51, the outer ring 51 is fixedly connected with the hinge mounting part 7, a contact main switch 8 is arranged on the outer ring 51, and the contact main switch 8 is positioned on the outer ring 51 and faces one side of the eyepiece 3; an indicator light 9 is arranged on the optometry instrument body 1, a contact main switch 8 is opened when the crossed cylindrical lens 5 is overlapped with the ocular lens 3, and the indicator light 9 is lightened. The indicator light reminds an optometrist that the current comprehensive optometry instrument is in a astigmatism detection state.
In order to further facilitate the optometrist to judge the axial direction of the cylindrical lens, the indicator lamp 9 comprises a positive axis indicator lamp 91 and a negative axis indicator lamp 92, a contact switch 54 is arranged on the inner diameter of the outer ring 51, and the contact switch 54 controls the switching of the positive axis indicator lamp 91 and the negative axis indicator lamp 92; the outer diameter of the inner ring 52 is provided with a groove 55, the position of the groove 55 corresponds to the position of the contact switch 54, when the inner ring 52 is overlapped with the outer ring 51, the contact switch 54 is positioned in the groove 55 and is not contacted with the inner ring, and the outer diameter of the other side of the reversed inner ring 52 corresponding to the contact switch 54 is not provided with the groove 55. Whether the contact switch 54 is in contact with the groove 55 or not prompts the state of the inner ring 52 of the crossed cylindrical mirror 5, so that an optometrist can be more intuitively reminded of whether the current axis is the positive axis or the negative axis.
In order to further facilitate the calibration of the astigmatism degree by the optometrist, two opposite arrow indicator lamps 93 are arranged on the optometry instrument body 1 along the circumferential direction of the cylindrical lens adjusting hand wheel 4, when the positive axis indicator lamp 91 is turned on, a corresponding one of the arrow indicator lamps 93 is also turned on at the same time, and when the positive axis indicator lamp 91 is turned on, the other one of the arrow indicator lamps 93 is also turned on at the same time. After the axial direction of the cylindrical lens is determined, the adjustment of the degree needs to be adjusted by rotating the cylindrical lens adjusting hand wheel 4, but the adjusting directions of the cylindrical lens adjusting hand wheels 4 in different axial directions are opposite, and an optometrist can be accurately reminded of adjusting the directions through the arrow indicator lamp 93.
Claims (3)
1. A diffusion degree detection indicating device of a comprehensive optometry instrument comprises an optometry instrument body (1), an external auxiliary lens (2), an eyepiece (3) and a cylindrical lens adjusting hand wheel (4), wherein the external auxiliary lens (2), the eyepiece (3) and the cylindrical lens adjusting hand wheel (4) are respectively positioned on the optometry instrument body (1); the external auxiliary mirror (2) comprises a crossed cylindrical mirror (5), a prism (6) and a hinged mounting part (7), the crossed cylindrical mirror (5) and the prism (6) are respectively fixed at two ends of the hinged mounting part (7), and the crossed cylindrical mirror (5) and the prism (6) are alternately overlapped with the eyepiece (3) through the rotation of the hinged mounting part (7); the crossed cylindrical mirror (5) comprises an outer ring (51), an inner ring (52) and a turnover wheel (53), the turnover wheel (53) drives the inner ring (52) to turn over inside the outer ring (51), the outer ring (51) is fixedly connected with the hinged installation part (7), and the crossed cylindrical mirror is characterized in that: a contact main switch (8) is arranged on the outer ring (51), and the contact main switch (8) is positioned on the outer ring (51) and faces one side of the eyepiece (3); be equipped with pilot lamp (9) on refractometer body (1), contact master switch (8) are opened when alternately cylindricality mirror (5) and eyepiece (3) overlap, and pilot lamp (9) are lighted.
2. The apparatus for detecting and indicating a diffusion of a phoropter according to claim 1, wherein: the indicating lamp (9) comprises a positive shaft indicating lamp (91) and a negative shaft indicating lamp (92), a contact switch (54) is arranged on the inner diameter of the outer ring (51), and the contact switch (54) controls the switching of the positive shaft indicating lamp (91) and the negative shaft indicating lamp (92); the outer diameter of the inner ring (52) is provided with a groove (55), the position of the groove (55) corresponds to the position of the contact switch (54), when the inner ring (52) is overlapped with the outer ring (51), the contact switch (54) is positioned in the groove (55) and is not contacted with the inner ring, and the outer diameter of the other side, corresponding to the contact switch (54), of the overturning inner ring (52) is not provided with the groove (55).
3. The apparatus for detecting and indicating a diffusion of a phoropter according to claim 2, wherein: two opposite arrow indicator lamps (93) are arranged on the optometry instrument body (1) along the circumferential direction of the cylindrical lens adjusting hand wheel (4), when the positive shaft indicator lamp (91) is turned on, a corresponding one of the arrow indicator lamps (93) is also turned on at the same time, and when the positive shaft indicator lamp (91) is turned into the negative shaft indicator lamp (92), the other one of the arrow indicator lamps (93) is also turned into at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921475764.0U CN210810963U (en) | 2019-09-06 | 2019-09-06 | Diffusion degree detection indicating device of comprehensive optometry instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921475764.0U CN210810963U (en) | 2019-09-06 | 2019-09-06 | Diffusion degree detection indicating device of comprehensive optometry instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210810963U true CN210810963U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921475764.0U Active CN210810963U (en) | 2019-09-06 | 2019-09-06 | Diffusion degree detection indicating device of comprehensive optometry instrument |
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| Country | Link |
|---|---|
| CN (1) | CN210810963U (en) |
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2019
- 2019-09-06 CN CN201921475764.0U patent/CN210810963U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 212000 China (Danyang) glasses industry pioneer park, east side of 312 National Road, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Teyi Optical Instrument Co., Ltd Address before: 212000 glasses industry pioneer park, east side of 312 National Road, Danyang City, Zhenjiang City, Jiangsu Province Patentee before: Jiangsu xinbailun Optical Instrument Co.,Ltd. |
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| CP03 | Change of name, title or address |