CN109283650B - Back reflecting device - Google Patents
Back reflecting device Download PDFInfo
- Publication number
- CN109283650B CN109283650B CN201811365276.4A CN201811365276A CN109283650B CN 109283650 B CN109283650 B CN 109283650B CN 201811365276 A CN201811365276 A CN 201811365276A CN 109283650 B CN109283650 B CN 109283650B
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- CN
- China
- Prior art keywords
- lens
- sucker
- chuck
- light reflecting
- centering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention provides a back reflecting device which comprises a lens frame assembly, a sucker positioning assembly and a reflecting assembly, wherein the lens frame assembly is used for supporting the sucker positioning assembly and the reflecting assembly and comprises a lens bracket; the chuck positioning assembly comprises a chuck, a chuck centering sliding table, a centering sliding block seat and positioning magnetic steel; the light reflecting component comprises a movable light reflecting plate and light reflecting cloth; the glasses lens is placed on the lens support, the glasses lens is pressed downwards, the lens support moves downwards, the guide post on the sucker centering sliding table drives the movable reflecting plate to rotate downwards around the rotation center, so that the reflecting cloth leaves the working position, when the movable reflecting plate moves to the lowest position, the sucker centering sliding table is attracted with the positioning magnetic steel, and therefore the glasses lens and the chuck sucker are accurately adhered, and the alignment accuracy of the glasses lens is ensured.
Description
Technical Field
The invention relates to the technical field of optical equipment, in particular to a back reflection device which is used for aligning optical centers, interpupillary distances and astigmatic axial positions of lenses and human eyes balls when glasses are matched.
Background
It is well known that the best solution to vision problems is to wear spectacle corrections. It is also critical to produce a correct pair of spectacles, in addition to prescription accuracy. The key is that besides the lens itself accords with the optometry data such as curvature, astigmatism and astigmatism axial positions, pupil distance and the like, the lens is aligned with the optical center, pupil distance and astigmatism axial positions of the eyeballs of the person through the support of the spectacle frame. Thus, positioning of the lens and frame is particularly important.
At present, both domestic and foreign scanning and center positioning adopt a lamp source to irradiate on a scale reticle, and a lens (the lens is well marked with a center and an axis on a lensometer) is moved to a required position, so that a sucker is pressed to suck the lens. Because of too small a dot, too light a dot, insufficient illuminance for center positioning, or reticle errors, etc., certain difficulties are caused in accurately displacing the lens to the desired position.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: in order to overcome the defects in the prior art, the invention provides a back reflection device.
The technical scheme adopted for solving the technical problems is as follows: the back light reflecting device comprises a lens frame assembly, a sucker positioning assembly and a light reflecting assembly, wherein the lens frame assembly is used for supporting the sucker positioning assembly and the light reflecting assembly;
the chuck positioning assembly comprises a chuck, a central chuck positioning column, a chuck centering slide block, a chuck centering slide table, a centering slide block seat and positioning magnetic steel, wherein the chuck is arranged above the central chuck positioning column, the chuck centering slide block is sleeved outside the central chuck positioning column and is relatively fixed with the chuck centering slide table, and the chuck centering slide block is relatively fixed with the spectacle frame assembly; the sucker centering sliding table is arranged below the central sucker positioning column, the upper end of the sucker centering sliding table is provided with a lens bracket for supporting an eyeglass lens, and the lens bracket moves up and down synchronously with the sucker centering sliding table; the centering sliding block seat is fixed on the spectacle frame component, and the positioning magnetic steel is arranged on the centering sliding block seat; when the sucker centering sliding table moves to the lowest position, the sucker centering sliding table is attracted with the positioning magnetic steel on the centering sliding block seat; the central sucking disc positioning column is used as an astigmatism axis position guide frame and used for central positioning and guiding.
The light reflecting assembly comprises a movable light reflecting plate and light reflecting cloth, the bottom of the movable light reflecting plate is connected to the mirror bracket assembly in a shaft mode, the shaft connection position of the movable light reflecting plate forms a rotation center, the light reflecting cloth is arranged at the other end of the movable light reflecting plate, and the light reflecting cloth synchronously rotates around the rotation center along with the movable light reflecting plate; the movable reflector is provided with a guide groove, the opening direction of the guide groove is opposite to the rotation center, a guide post capable of sliding along the guide groove is arranged in the guide groove, one end of the guide post is fixedly connected to the sucker centering sliding table, and the projection of the guide post on the horizontal plane is not coincident with the rotation center.
Further, the device also comprises an image sensor and a projection display screen, wherein the image sensor is arranged above the spectacle lens to be aligned, the image sensor is used for imaging the spectacle lens and projecting the spectacle lens onto the projection display screen, and the projection display screen is used for displaying the relative positions of the marking points and the astigmatism axes of the spectacle lens and the cross targets on the projection display screen.
Specifically, the mirror holder subassembly includes mirror holder CD, CD fixed column and lower mirror holder seat, CD fixed column lower extreme is fixed on the lower mirror holder seat, and the upper end supports in mirror holder CD bottom, the inside guiding hole that is equipped with of mirror holder CD, the lens support is installed in the guiding hole, and the lens support is located between sucking disc centering slider and the mirror holder CD, but the relative sucking disc centering slider of lens support and mirror holder CD reciprocate in the guiding hole.
Further, in order to realize the connection of movable reflector panel, the reflector assembly still includes the reflector panel fixing base, the movable reflector panel passes through the reflector panel fixing base to be connected on lower mirror frame foundation. The reflector fixing seat is fixedly connected with the lower mirror bracket seat, and the movable reflector is rotationally connected with the reflector fixing seat through a rotating shaft.
Further, in order to stabilize the position of the spectacle lens, the anti-slip rubber ring is further included, and the anti-slip rubber ring is arranged on the contact surface of the lens support and the spectacle lens. The friction force between the spectacle lens and the lens support can be increased through the anti-skid rubber ring, so that the position of the spectacle lens is prevented from moving.
The beneficial effects of the invention are as follows: the back reflecting device provided by the invention adopts the linkage structure of the rotation center of the movable reflecting plate, the center of the chuck and the astigmatic axial guide frame, so that the effect of clearly imaging the optical center and the axial position of the lens on the display screen is achieved, and the optical center and the axial position can be conveniently and accurately moved to the required position.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic structural view (magnetic steel attraction state) of the movable reflector in a non-working position.
Fig. 2 is a schematic view of the structure of the movable reflector moving into and out of the working position.
Fig. 3 is a schematic structural view of the movable reflector in a working position.
Fig. 4 is a top view of the frame assembly, suction cup positioning assembly and reflector assembly.
In the figure: 1. the glasses lens, 2, anti-slip rubber rings, 3, lens support, 4, chuck suction cups, 5, a central suction cup positioning column, 6, a glasses frame optical disk, 7, a suction cup centering sliding block, 8, a suction cup centering sliding table, 9, an optical disk fixing column, 10, a rotation center, 11, a lower glasses frame seat, 12, a fastening screw, 13, a lower positioning magnetic steel spring, 14, a centering sliding block seat, 15, magnetic steel, 16, a guide column, 17, a reflective cloth, 18, a movable reflective plate, 19, a guide groove, 20, an image sensor, 21, a projection display screen, 22, glasses lens projection, 23, a mark point, 24, a light scattering axis site, 25 and a reflective plate fixing seat.
Description of the embodiments
The present invention will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the invention only by way of illustration, and therefore it shows only the constitution related to the invention.
As shown in fig. 1-4, the back reflection device of the present invention comprises a lens frame assembly, a suction cup positioning assembly, a reflection assembly, an image sensor 20 and a projection display screen 21, wherein the image sensor 20 is arranged above an eyeglass lens 1 to be aligned, the image sensor 20 is used for imaging the eyeglass lens 1 and projecting the eyeglass lens 1 onto the projection display screen 21, and the projection display screen 21 is used for displaying the relative positions of an eyeglass lens mark point 23 and an astigmatism axis and a cross target on the projection display screen 21. The projection display screen 21 can adopt the mirror holder subassembly to be used for sucking disc locating component and reflector assembly's support, including lens support 3, mirror holder CD 6, CD fixed column 9, anti-skidding rubber ring 2 and lower mirror holder seat 11, CD fixed column 9 lower extreme is fixed on lower mirror holder seat 11, and the upper end supports in mirror holder CD 6 bottom, mirror holder CD 6 inside is equipped with the guiding hole, lens support 3 installs in the guiding hole, and lens support 3 is located between sucking disc centering slider 7 and the mirror holder CD 6, lens support 3 is relative sucking disc centering slider 7 and mirror holder CD 6 can reciprocate in the guiding hole. The anti-slip rubber ring 2 is arranged on the contact surface of the lens bracket 3 and the spectacle lens 1. The friction force between the spectacle lens 1 and the lens bracket 3 can be increased by the anti-skid rubber ring 2, so that the position of the spectacle lens 1 is prevented from moving.
The chuck positioning assembly comprises a chuck 4, a central chuck positioning column 5, a chuck centering slide block 7, a chuck centering slide table 8, a centering slide block seat 14 and positioning magnetic steel 15, wherein the chuck 4 is arranged above the central chuck positioning column 5, the chuck centering slide block 7 is sleeved outside the central chuck positioning column 5 and is relatively fixed with the chuck centering slide table 8, and the chuck centering slide block 7 is relatively fixed with the spectacle frame assembly; the sucker centering sliding table 8 is arranged below the central sucker positioning column 5, the upper end of the sucker centering sliding table 8 is provided with a lens bracket 3 for supporting the spectacle lens 1, and the lens bracket 3 moves up and down synchronously along with the sucker centering sliding table 8; the centering slide block seat 14 is fixed on the lower lens frame seat 11 of the lens frame assembly through a fastening screw 12, and the positioning magnetic steel 15 is arranged on the centering slide block seat 14; when the sucker centering sliding table 8 moves to the lowest position, the sucker centering sliding table is attracted with the positioning magnetic steel 15 on the centering sliding block seat 14; the central sucker positioning column 5 is used as an astigmatism axis position guide frame and used for central positioning and guiding. The sucker centering slide block 7 is made of a metal material which can be attracted with the magnetic steel 15, for example: and a lower positioning magnetic steel spring 13 for supporting is arranged in the lower lens frame seat below the magnetic steel 15.
The light reflecting assembly comprises a movable light reflecting plate 18, light reflecting cloth 17 and a light reflecting plate fixing seat 25, wherein the bottom of the movable light reflecting plate 18 is connected to the mirror bracket assembly in a shaft way, the shaft connection position forms a rotation center 10, the light reflecting cloth 17 is arranged at the other end of the movable light reflecting plate 18, and the light reflecting cloth 17 synchronously rotates around the rotation center 10 along with the movable light reflecting plate 18; the movable reflector 18 is provided with a guide groove 19, the opening direction of the guide groove 19 is opposite to the rotation center 10, a guide post 16 capable of sliding along the guide groove 19 is arranged in the guide groove 19, one end of the guide post 16 is fixedly connected to the sucker centering sliding table 8, and the projection of the guide post 16 on a horizontal plane is not overlapped with the rotation center 10. The movable reflector 18 is connected to the lower frame 11 through a reflector fixing seat 25. The reflector fixing seat 25 is fixedly connected with the lower mirror bracket seat 11, and the movable reflector 18 is rotatably connected with the reflector fixing seat 25 through a rotating shaft.
Working principle:
as shown in fig. 1, before the alignment of the spectacle lens 1, the movable reflector 18 is generally in a non-working position, at this time, the chuck centering slider 7 is attracted to the magnetic steel 15, the lens support 3 is in a lowest position, the spectacle lens 1 is not arranged on the lens support 3, and the chuck 4 is not arranged on the central chuck positioning column 5.
When alignment is required, firstly, the chuck sucker 4 is placed on the central sucker positioning column 5 (attention direction), then the lens bracket 3 is lifted up, and at the moment, the sucker centering slide 7 moves upwards along with the lens bracket 3 under the action of pulling force and is separated from the magnetic steel 15; since the guide post 16 is fixed to the suction cup centering slider 7, the guide post 16 also moves upward, and the guide post 16 pushes the movable reflecting plate 18 upward in the guide groove 19, thereby causing the movable reflecting plate 18 to be rotated upward about the rotation center 10, as shown in fig. 2. Until the movable reflective panel 18 is rotated upwardly about the center of rotation 10 to the reflective operational position shown in fig. 3.
Then, the convex surface of the spectacle lens 1 with the marked points 23 is downwards placed on the anti-skid rubber ring 2 of the lens support 3, a light source acts on the reflecting surface of the reflecting cloth 17 through the lens to be centrally positioned, the reflecting cloth 17 reflects the optical center and the astigmatic axis locus 24 of the spectacle lens 1 to be centrally positioned to the CMOS sensor, and finally, the projection 22 of the spectacle lens is clearly imaged on the projection display screen 21; then the spectacle lens 1 is moved, so that the optical center point and two points of the spectacle lens 1 are the axial position of the spectacle lens 1 and the required position on the projection display screen 21 are accurately overlapped; after the position alignment, the spectacle lens 1 is pressed downwards to enable the lens bracket 3 to move downwards, downward pressure is generated on the guide post 16 through the sucker centering sliding table 8, the guide post 16 is pressed in the guide groove 19 to enable the movable reflecting plate 18 to rotate downwards around the rotation center 10, namely, to exit the reflecting working position, and the sucker centering sliding table 8 is attracted with the magnetic steel 15 on the centering sliding block seat 14, so that the positioned spectacle lens 1 and the chuck sucker 4 are accurately adhered; finally, the spectacle lens 1 is taken down to finish accurate positioning.
The lens and the lens frame are positioned by the shape of the lens frame, the shape of the lens is processed by a three-dimensional profile grinder to form a lens with one-to-one shape of the lens frame, and the optical center, the axial position and the pupil distance of the lens are aligned by a photographic projection centering instrument.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (4)
1. A back-reflection apparatus, characterized in that: comprises a spectacle frame component, a sucker positioning component and a reflecting component, wherein,
the lens frame component is used for supporting the sucker positioning component and the reflecting component;
the chuck positioning assembly comprises a chuck, a central chuck positioning column, a chuck centering slide block, a chuck centering slide table, a centering slide block seat and positioning magnetic steel, wherein the chuck is arranged above the central chuck positioning column, the chuck centering slide block is sleeved outside the central chuck positioning column and is relatively fixed with the chuck centering slide table, and the chuck centering slide block is relatively fixed with the spectacle frame assembly; the sucker centering sliding table is arranged below the central sucker positioning column, the upper end of the sucker centering sliding table is provided with a lens bracket for supporting an eyeglass lens, and the lens bracket moves up and down synchronously with the sucker centering sliding table; the centering sliding block seat is fixed on the spectacle frame component, and the positioning magnetic steel is arranged on the centering sliding block seat; when the sucker centering sliding table moves to the lowest position, the sucker centering sliding table is attracted with the positioning magnetic steel on the centering sliding block seat;
the light reflecting assembly comprises a movable light reflecting plate and light reflecting cloth, the bottom of the movable light reflecting plate is connected to the mirror bracket assembly in a shaft mode, the shaft connection position of the movable light reflecting plate forms a rotation center, the light reflecting cloth is arranged at the other end of the movable light reflecting plate, and the light reflecting cloth synchronously rotates around the rotation center along with the movable light reflecting plate; the movable reflector is provided with a guide groove, the opening direction of the guide groove faces away from the rotation center, a guide post capable of sliding along the guide groove is arranged in the guide groove, one end of the guide post is fixedly connected to the sucker centering sliding table, and the projection of the guide post on the horizontal plane is not coincident with the rotation center;
the lens alignment device comprises an eyeglass lens, an image sensor and a projection display screen, wherein the image sensor is arranged above the eyeglass lens to be aligned, the image sensor is used for imaging the eyeglass lens and projecting the eyeglass lens onto the projection display screen, and the projection display screen is used for displaying the relative positions of marking points and astigmatism axes of the eyeglass lens and a cross target on the projection display screen.
2. The back reflector apparatus of claim 1, wherein: the lens bracket component comprises a lens bracket optical disc, an optical disc fixing column and a lower lens bracket seat, wherein the lower end of the optical disc fixing column is fixed on the lower lens bracket seat, the upper end of the optical disc fixing column is supported at the bottom of the lens bracket optical disc, a guide hole is formed in the optical disc of the lens bracket, the lens bracket is arranged in the guide hole and is positioned between the sucker centering sliding block and the optical disc of the lens bracket, and the lens bracket can move up and down in the guide hole relative to the sucker centering sliding block and the optical disc of the lens bracket.
3. The back reflector apparatus of claim 2, wherein: the light reflecting assembly further comprises a light reflecting plate fixing seat, and the movable light reflecting plate is connected to the lower lens frame seat through the light reflecting plate fixing seat.
4. The back reflector apparatus of claim 1, wherein: the anti-skid rubber ring is arranged on the contact surface of the lens support and the spectacle lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365276.4A CN109283650B (en) | 2018-11-16 | 2018-11-16 | Back reflecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365276.4A CN109283650B (en) | 2018-11-16 | 2018-11-16 | Back reflecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109283650A CN109283650A (en) | 2019-01-29 |
| CN109283650B true CN109283650B (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811365276.4A Active CN109283650B (en) | 2018-11-16 | 2018-11-16 | Back reflecting device |
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| CN (1) | CN109283650B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315765B (en) * | 2019-03-20 | 2021-05-04 | 诸暨市仲达智能科技有限公司 | Ink horn assembly process equipment |
| CN110531531B (en) * | 2019-09-27 | 2021-08-03 | 昆明北方红外技术股份有限公司 | Method for assembling and adjusting primary and secondary reflectors of Cassegrain optical system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1147521A (en) * | 1966-07-11 | 1969-04-02 | British Scient Instr Res Ass | Lens centring apparatus |
| CN1758976A (en) * | 2003-03-07 | 2006-04-12 | 林贝尔公司 | An apparatus, fixture, packing, a method for machining of spectacle lenses |
| FR2878978A1 (en) * | 2004-12-03 | 2006-06-09 | Essilor Int | METHOD OF BLOCKING AN OPHTHALMIC LENS FOR ITS DISTURBANCE AND DEVICE FOR AUTOMATICALLY PREPARING THE MOUNTING OF AN OPHTHALMIC LENS |
| CN107339955A (en) * | 2017-01-07 | 2017-11-10 | 深圳市灿锐科技有限公司 | A kind of inclined detecting instrument in high-precision lenses center and its measuring method |
| CN209148938U (en) * | 2018-11-16 | 2019-07-23 | 苏州巨目光学科技有限公司 | Carry on the back reflex reflector |
-
2018
- 2018-11-16 CN CN201811365276.4A patent/CN109283650B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1147521A (en) * | 1966-07-11 | 1969-04-02 | British Scient Instr Res Ass | Lens centring apparatus |
| CN1758976A (en) * | 2003-03-07 | 2006-04-12 | 林贝尔公司 | An apparatus, fixture, packing, a method for machining of spectacle lenses |
| FR2878978A1 (en) * | 2004-12-03 | 2006-06-09 | Essilor Int | METHOD OF BLOCKING AN OPHTHALMIC LENS FOR ITS DISTURBANCE AND DEVICE FOR AUTOMATICALLY PREPARING THE MOUNTING OF AN OPHTHALMIC LENS |
| CN107339955A (en) * | 2017-01-07 | 2017-11-10 | 深圳市灿锐科技有限公司 | A kind of inclined detecting instrument in high-precision lenses center and its measuring method |
| CN209148938U (en) * | 2018-11-16 | 2019-07-23 | 苏州巨目光学科技有限公司 | Carry on the back reflex reflector |
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| Publication number | Publication date |
|---|---|
| CN109283650A (en) | 2019-01-29 |
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