CN202267590U - Detecting device of free surface lens - Google Patents
Detecting device of free surface lens Download PDFInfo
- Publication number
- CN202267590U CN202267590U CN2011202893826U CN201120289382U CN202267590U CN 202267590 U CN202267590 U CN 202267590U CN 2011202893826 U CN2011202893826 U CN 2011202893826U CN 201120289382 U CN201120289382 U CN 201120289382U CN 202267590 U CN202267590 U CN 202267590U
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- eyeglass
- free form
- form surface
- luminous point
- tested
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Abstract
A detecting device of a free surface lens comprises a light source generator, a lens group, a light dot array coder and a planar array image sensor, and is characterized in that the parallel light source generator (1) comprises a light source and a projection optical system guiding the projection light come from the light source along a projection light path, the lens group (2) enables an incident monochromatic light beam to be beam expanded to become a parallel light beam sent to the clear aperture of a to-be-tested lens(4), and the light dot array coder (3) is arranged between the lens group (2) and the to-be-tested lens(4); the to-be-tested lens(4) is the free surface lens, and the planar array image sensor (5) is a more than 5-mega-pixel planar array image sensor. The detecting device of the free surface lens of the utility model has the advantages of being novel in design, compact in structure, reasonable in detection step design and simple in operation, and being able to detect the whole surface vertex power distribution information of the free surface lens.
Description
Technical field
The utility model relates to a kind of free form surface eyeglass, specifically, is a kind of pick-up unit of free form surface eyeglass.
Background technology
To the detection of eyeglass, mainly detect with automatic lensometer at present, it is one of essential instrument of spectacles industry.Automatic lensometer partly is made up of optical system, precision optical machinery, photoelectricity testing part (being generally ccd sensor) and electrical control etc. usually, relates to the knowledge of aspect such as light, mechanical, electrical.Automatic lensometer is used the spot measurement method.Near its symmetry primary optical axis of eyeglass is chosen 4 luminous points, uses array image sensor, gathers the image of 4 luminous points, goes out the vertex lens power parameter of eyeglass according to the position calculation of 4 luminous points.The spot measurement method can accurately provide each dot information, but it can only measure the diopter distributed intelligence at the center, a zonule of eyeglass in real time, can not provide whole vertex lens power distributed intelligence, has limitation for detecting progressive multi-focus lens.
So-called free form surface (FREE-FORM) technology promptly is used for the technology of asymmetric complicated optical design surface working.In the last few years, high-end lens industry obtained using comparatively widely this technology in the world.Along with the widespread use of free form surface eyeglass, its relevant detection technology is also in continuous development.Because the diopter of free form surface eyeglass is all inequality in whole surface range, and its face shape is a kind of nonaxisymmetrical surface of revolution, and point or the bus of therefore only measuring minority are far from being enough for whole shape estimating the free form surface eyeglass.
Therefore whole the shape that known automatic lensometer detects the free form surface eyeglass exists above-mentioned all inconvenience and problem.
Summary of the invention
The purpose of the utility model is to propose a kind of pick-up unit of the free form surface eyeglass that the vertex lens power of all clear apertures is detected.
For realizing above-mentioned purpose, the technical solution of the utility model is:
A kind of pick-up unit of free form surface eyeglass comprises light source generator, lens combination, and luminous point matrix encoder and array image sensor is characterized in that:
Said source of parallel light generator comprises light source and along the projection optics system of projecting light path guiding from the projection light of said light source, monochromatic light takes place;
Said collimating mirror is a lens combination, is arranged in said projecting light path, makes the incident homogeneous beam expand the parallel beam of Shu Bianwei to the clear aperature of eyeglass to be tested through it;
Said luminous point matrix encoder; Be arranged between said collimating mirror and the eyeglass to be tested; Choose on the basis of 4 luminous points near the symmetry primary optical axis of eyeglass; And choose many group luminous points in symmetrical extension, make luminous point cover all clear apertures of eyeglass progressive multi-focal lenses eyeglass to be tested, and arrange the luminous point matrix according to the regularity of distribution of free form surface eyeglass;
Said eyeglass to be tested is the free form surface eyeglass, is arranged in the projecting light path at luminous point matrix encoder rear;
Said array image sensor; Be high pixel faces array image sensor; Choose high pixel more than 5,000,000, be arranged on the luminous point matrix diagram that receives the vertex lens power parameter that comprises the free form surface eyeglass that the luminous point matrix encoder takes place in the projecting light path at eyeglass to be tested rear.
The pick-up unit of the free form surface eyeglass of the utility model can also adopt following technical measures further to realize.
Aforesaid device, wherein said lens combination is a collimating mirror.
Aforesaid device is arranged to picture and is gathered light path near the primary optical axis of wherein said eyeglass to be tested, make the variation of the luminous point matrix diagram of generation contain the vertex lens power parameter of different free form surface eyeglass.
Aforesaid device, wherein said array image sensor are provided with luminous point matrix decoder analysis processor, calculate the vertex lens power parameter of progressive multi-focal lenses eyeglass.
After adopting technique scheme, the pick-up unit of the free form surface eyeglass of the utility model has the following advantages:
1, novel in design, the compact conformation of pick-up unit;
2, can detect the diopter distributed intelligence of whole shape of free form surface eyeglass.
Description of drawings
Fig. 1 is the measurement lens device synoptic diagram of the utility model embodiment.
Among the figure: 1 source of parallel light generator, 2 lens combination, 3 luminous point matrix encoders, 4 eyeglasses to be tested, 5 array image sensors.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is illustrated further.
Fig. 1 is the measurement lens device synoptic diagram of the utility model embodiment.
The pick-up unit of the free form surface eyeglass of the utility model comprises light source generator, collimating mirror, and luminous point matrix encoder and array image sensor is characterized in that:
Said source of parallel light generator 1 comprises light source and along the projection optics system of projecting light path guiding from the projection light of said light source, monochromatic light takes place;
Said lens combination 2 is collimating mirror, is arranged in said projecting light path, makes the incident homogeneous beam expand the parallel beam of Shu Bianwei to the clear aperature of eyeglass 4 to be tested through it;
Said luminous point matrix encoder 3; Be arranged between said collimating mirror and the eyeglass to be tested 4; Choose on the basis of 4 luminous points near the symmetry primary optical axis of eyeglass; And choose many group luminous points in symmetrical extension, make luminous point cover all clear apertures of eyeglass 4 progressive multi-focal lenses eyeglasses to be tested, and arrange the luminous point matrix according to the regularity of distribution of free form surface eyeglass; Near the primary optical axis of said eyeglass 4 to be tested, be arranged to picture and gather light path, make the variation of the luminous point matrix diagram of generation contain the vertex lens power parameter of different free form surface eyeglass.
Said eyeglass to be tested 4 is the free form surface eyeglass, is arranged in the projecting light path at luminous point matrix encoder 3 rears;
Said array image sensor 5; It is the commercially available prod; Be 5,000,000 above pixel faces array image sensors, be arranged on the luminous point matrix diagram that receives the vertex lens power parameter that comprises the free form surface eyeglass that luminous point matrix encoder 3 takes place in the projecting light path at eyeglass to be tested 4 rears; Said array image sensor 5 is provided with luminous point matrix decoder analysis processor, calculates the vertex lens power parameter of progressive multi-focal lenses eyeglass.
Above embodiment only supplies to explain the usefulness of the utility model, but not to the restriction of the utility model, the technician in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also make various conversion or variation.Therefore, all technical schemes that are equal to also should belong to the category of the utility model, should be limited each claim.
Claims (4)
1. the pick-up unit of a free form surface eyeglass comprises light source generator, lens combination, and luminous point matrix encoder and array image sensor is characterized in that:
Said source of parallel light generator (1) comprises light source and along the projection optics system of projecting light path guiding from the projection light of said light source, monochromatic light takes place;
Said lens combination (2) is arranged in said projecting light path, makes the incident homogeneous beam expand the parallel beam of Shu Bianwei to the clear aperature of eyeglass to be tested (4) through it;
Said luminous point matrix encoder (3); Be arranged between said lens combination (2) and the eyeglass to be tested (4); Choose on the basis of 4 luminous points near the symmetry primary optical axis of eyeglass; And choose many group luminous points in symmetrical extension, make luminous point cover all clear apertures of eyeglass to be tested (4) progressive multi-focal lenses eyeglass, and arrange the luminous point matrix according to the regularity of distribution of free form surface eyeglass;
Said eyeglass to be tested (4) is the free form surface eyeglass, is arranged in the projecting light path at luminous point matrix encoder (3) rear;
Said array image sensor (5); Be 5,000,000 above pixel faces array image sensors, be arranged on the luminous point matrix diagram that receives the vertex lens power parameter that comprises the free form surface eyeglass that luminous point matrix encoder (3) takes place in the projecting light path at eyeglass to be tested (4) rear.
2. the pick-up unit of free form surface eyeglass as claimed in claim 1 is characterized in that, said lens combination is a collimating mirror.
3. the pick-up unit of free form surface eyeglass as claimed in claim 1; It is characterized in that; Near the primary optical axis of said eyeglass to be tested (4), be arranged to picture and gather light path, make the variation of the luminous point matrix diagram of generation contain the vertex lens power parameter of different free form surface eyeglass.
4. the pick-up unit of free form surface eyeglass as claimed in claim 1 is characterized in that, said array image sensor (5) is provided with luminous point matrix decoder analysis processor, calculates the vertex lens power parameter of progressive multi-focal lenses eyeglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202893826U CN202267590U (en) | 2011-08-10 | 2011-08-10 | Detecting device of free surface lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202893826U CN202267590U (en) | 2011-08-10 | 2011-08-10 | Detecting device of free surface lens |
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| Publication Number | Publication Date |
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| CN202267590U true CN202267590U (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202893826U Expired - Lifetime CN202267590U (en) | 2011-08-10 | 2011-08-10 | Detecting device of free surface lens |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928196A (en) * | 2011-08-10 | 2013-02-13 | 上海雄博精密仪器股份有限公司 | Detection method and device for free-form surface lens |
| CN108844494A (en) * | 2018-06-25 | 2018-11-20 | 新视界视光健康产业（南京）有限公司 | Method based on optical means detection glasses curvature of curved surface parameter |
| CN109186955A (en) * | 2018-08-30 | 2019-01-11 | 上海理工大学 | Progressive multi-focus lens distance region binary channels focal power measuring device and method |
-
2011
- 2011-08-10 CN CN2011202893826U patent/CN202267590U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928196A (en) * | 2011-08-10 | 2013-02-13 | 上海雄博精密仪器股份有限公司 | Detection method and device for free-form surface lens |
| CN108844494A (en) * | 2018-06-25 | 2018-11-20 | 新视界视光健康产业（南京）有限公司 | Method based on optical means detection glasses curvature of curved surface parameter |
| CN109186955A (en) * | 2018-08-30 | 2019-01-11 | 上海理工大学 | Progressive multi-focus lens distance region binary channels focal power measuring device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |