CN202221493U - Large-aperture parallel light beam expanding device - Google Patents
Large-aperture parallel light beam expanding device Download PDFInfo
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- CN202221493U CN202221493U CN2011202893629U CN201120289362U CN202221493U CN 202221493 U CN202221493 U CN 202221493U CN 2011202893629 U CN2011202893629 U CN 2011202893629U CN 201120289362 U CN201120289362 U CN 201120289362U CN 202221493 U CN202221493 U CN 202221493U
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Abstract
A large-aperture parallel light beam expanding device comprises a light source generator (1), a ball type lens (2), a light fens (3), a diffuse transmission plate (4), a collimating lens (5), a beam expanding lens set (6) and a to-be-measured lens (7). The large-aperture parallel light beam expanding device is characterized in that the light source generator (1) comprises a light source and a projection optical system which is used for guiding projection light from the light source along a projection light path, and the light source generator is used for generation of monochromatic light; the ball type lens (2) is a transparent ball processed by optical glass, and the diameter of the ball type lens is equal to the diameter of the lighting head of the light source; the light fens (3) is a thin metal sheet having a small hole with 0.2mm in thickness in the center and is clung to the ball type lens (2); the diffuse transmission plate (4) is ground glass with 1mm in thickness; the collimating lens (5) is used for collecting uniform diverging light rays into a cluster of parallel light; and the beam expanding lens set (6) is used for expanding the parallel light into a parallel light beam having a diameter of over 50mm.
Description
Technical field
The directional light that the utility model relates in a kind of free form surface eyeglass detecting instrument expands bundle, specifically, is that a kind of diameter can reach 75 millimeters heavy caliber directional light parallel beam expand device.
Background technology
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 curved surface; Therefore point or the bus of only measuring minority are far from being enough for whole shape estimating the free form surface eyeglass; The face shape that must record whole distributes, and obtains the vertex lens power parameter of each point.
To the detection of eyeglass, mainly use automatic lensometer to detect 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 (be generally array image sensor, also have and adopt 2 linear arrays) and electrical control etc. usually.Automatic lensometer is used the spot measurement method, and 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 diopter distributed intelligence, have limitation during for detection progressive multi-focus lens or free form surface eyeglass.
Therefore known automatic lensometer exists above-mentioned all inconvenience and problem with the spot measurement device.
Summary of the invention
The purpose of the utility model, what be to propose a kind of source of parallel light generator that is used for the eyeglass analysis and detecting instrument expands the heavy caliber directional light parallel beam expand device of restrainting to the parallel beam of the clear aperature of lens to a monochromatic light through a lens combination.
Another purpose of the utility model is to propose a kind of heavy caliber directional light parallel beam expand device of uniform irradiation of light of all clear apertures to the free form surface eyeglass.
For realizing above-mentioned purpose, the technical solution of the utility model is:
A kind of heavy caliber directional light parallel beam expand device comprises light source generator, ball-type lens, light hurdle, diffuse transmission plate, collimation lens, extender lens and eyeglass to be measured; It is characterized in that:
Said light source generator comprises light source and guides the projection optics system from the projection light of said light source along projecting light path, monochromatic light takes place, and be provided with the ball-type lens successively, light hurdle, diffuse transmission plate, collimation lens, extender lens and eyeglass to be measured along projecting light path;
Said ball-type lens, with the hyaloplasmic sphere that the optics glass processing becomes, its diameter is the same with the light head diameter of light source, and is close to light source generator, and the monochromatic light of incident is focused on through it;
Said smooth hurdle is the 0.2mm foil for there is the thickness of an aperture centre, and perhaps there is the light blocking film of an aperture in plating central authorities on the thin flat plate optical glass, and are close to the ball-type lens, and the light that light source is sent illuminates said aperture after the ball-type lens focus;
Said diffuse transmission plate for thickness is the frosted glass of 1mm, and is close to the light hurdle, makes the throw light after the overanxious removal spurious rays in light hurdle shine the isotropic even divergent rays of formation 180 degree on the diffuse transmission plate again;
Said collimation lens is converged to a parallel ray beam with said even divergent rays;
It is the above parallel beam of 50mm that said expanded beam lens group makes said parallel rays expand to diameter, and expanded beam lens group is actually a Kepler telescope, and its magnification can logical light diameter expansion become the parallel beam that collimation lens forms more than the 50mm.
The heavy caliber directional light parallel beam expand device of the utility model can also adopt following technical measures further to realize.
Aforesaid heavy caliber directional light parallel beam expand device, the distance between wherein said diffuse transmission plate and the extender lens can be 1～10mm.
Aforesaid heavy caliber directional light parallel beam expand device, the distance between wherein said extender lens and the eyeglass to be measured can be 20～300mm.
Aforesaid heavy caliber directional light parallel beam expand device, the diameter of wherein said ball-type lens is the same with the diameter of the light head of light source.
Aforesaid heavy caliber directional light parallel beam expand device, wherein said smooth hurdle printing opacity small aperture 0.1～1mm.
Aforesaid heavy caliber directional light parallel beam expand device, the power bracket of wherein said light source is 0.5～10 watt.
After adopting technique scheme, the heavy caliber directional light parallel beam expand device and the method for the utility model have the following advantages:
1, can carry out uniform irradiation to the light of all clear apertures of free form surface eyeglass;
2, detect the distributed intelligence of vertex lens power that clear aperture obtains all clear apertures of free form surface eyeglass.
Description of drawings
Fig. 1 be the utility model embodiment the structural representation of heavy caliber directional light parallel beam expand device.
Among the figure: 1 light source, 2 ball-type lens, 3 smooth hurdles, 4, the diffuse transmission plate, 5 collimation lenses, 6 expanded beam lens group, 7 eyeglasses to be measured.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is illustrated further.
See also Fig. 1 at present, Fig. 1 be the utility model embodiment the structural representation of heavy caliber directional light parallel beam expand device.As shown in the figure, said light source generator 1 comprises light source and guides the projection optics system from the projection light of said light source along projecting light path; Monochromatic light takes place, and is provided with ball-type lens 2 successively, light hurdle 3 along projecting light path; Diffuse transmission plate 4, collimation lens 5, expanded beam lens group 6 and eyeglass 7 to be measured.
Said ball-type lens 2, with the hyaloplasmic sphere that the optics glass processing becomes, its diameter is the same with the light head diameter of light source, and is close to light source generator 1, makes the monochromatic light of incident be focused into point through it; The diameter of said ball-type lens is the same with the diameter of the light head of light source, if select the LED luminotron of diameter 5mm, the diameter of ball-type lens is 5mm;
Said smooth hurdle 3 is the 0.2mm foil for there is the thickness of an aperture centre, and perhaps there is the light blocking film of an aperture in plating central authorities on the thin flat plate optical glass, and are close to the ball-type lens, and the light that light source is sent illuminates said aperture after the ball-type lens focus; Said smooth hurdle printing opacity small aperture 0.1～1mm;
Said diffuse transmission plate 4 for thickness is the frosted glass of 1mm, and is close to light hurdle (3), makes the throw light after light hurdle (3) overanxious removal spurious rays shine the upward isotropic even divergent rays of formation 180 degree of diffuse transmission plate (4) again; Distance between said diffuse transmission plate and the extender lens can be 1～10mm;
Said collimation lens 5 is converged to a parallel ray beam with said even divergent rays;
It is the above parallel beam of 50mm that said expanded beam lens group 6 makes said parallel rays expand to diameter, and expanded beam lens group 6 is actually a Kepler telescope, and its magnification can logical light diameter expansion become the parallel beam that collimation lens 5 forms more than the 50mm.
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 (6)
1. a heavy caliber directional light parallel beam expand device comprises light source generator (1), ball-type lens (2), light hurdle (3), and diffuse transmission plate (4), collimation lens (5) expanded beam lens group (6) and eyeglass to be measured (7) is characterized in that:
Said light source generator (1); Comprise light source and guide projection optics system, monochromatic light takes place, and be provided with ball-type lens (2) successively along projecting light path from the projection light of said light source along projecting light path; Light hurdle (3); Diffuse transmission plate (4), collimation lens (5), extender lens (6) and eyeglass to be measured (7);
Said ball-type lens (2), with the hyaloplasmic sphere that the optics glass processing becomes, its diameter is the same with the light head diameter of light source, and is close to light source generator (1), and the monochromatic light of incident is focused on through it;
Said smooth hurdle (3); For there is the thickness of an aperture centre is the 0.2mm foil; Perhaps there is the light blocking film of an aperture in plating central authorities on the thin flat plate optical glass, and are close to ball-type lens (2), and the light that light source is sent illuminates said aperture after ball-type lens (2) focus on;
Said diffuse transmission plate (4) for thickness is the frosted glass of 1mm, and is close to light hurdle (3), makes the throw light after light hurdle (3) overanxious removal spurious rays shine the upward isotropic even divergent rays of formation 180 degree of diffuse transmission plate (4) again;
Said collimation lens (5) is converged to a parallel ray beam with said even divergent rays;
It is the above parallel beam of 50mm that said expanded beam lens group (6) makes said parallel rays expand to diameter; Expanded beam lens group (6) is actually a Kepler telescope, and its magnification can logical light diameter expansion become the parallel beam that collimation lens (5) forms more than the 50mm.
2. heavy caliber directional light parallel beam expand device as claimed in claim 1 is characterized in that the distance between said diffuse transmission plate and the extender lens can be 1～10mm.
3. heavy caliber directional light parallel beam expand device as claimed in claim 1 is characterized in that the distance between said extender lens and the eyeglass to be measured can be 20～300mm.
4. heavy caliber directional light parallel beam expand device as claimed in claim 1 is characterized in that the diameter of said ball-type lens is the same with the diameter of the light head of light source.
5. heavy caliber directional light parallel beam expand device as claimed in claim 1 is characterized in that, said smooth hurdle printing opacity small aperture 0.1～1mm.
6. heavy caliber directional light parallel beam expand device as claimed in claim 1 is characterized in that the power bracket of said light source is 0.5～10 watt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202893629U CN202221493U (en) | 2011-08-10 | 2011-08-10 | Large-aperture parallel light beam expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202893629U CN202221493U (en) | 2011-08-10 | 2011-08-10 | Large-aperture parallel light beam expanding device |
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| Publication Number | Publication Date |
|---|---|
| CN202221493U true CN202221493U (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202893629U Expired - Lifetime CN202221493U (en) | 2011-08-10 | 2011-08-10 | Large-aperture parallel light beam expanding device |
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| Country | Link |
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| CN (1) | CN202221493U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928982A (en) * | 2011-08-10 | 2013-02-13 | 上海雄博精密仪器股份有限公司 | Large-aperture parallel light beam expansion device and method |
| CN102943995A (en) * | 2012-12-03 | 2013-02-27 | 上海理工大学 | Solar simulator optical device with variable radiation surface sizes and variable collimation angles |
| CN104503088A (en) * | 2014-12-18 | 2015-04-08 | 北京首量科技有限公司 | Beam expander optical system for coherent illumination |
| CN111720800A (en) * | 2020-07-17 | 2020-09-29 | 上海艾葛诺照明科技有限公司 | Kepler type light beam imaging pattern lamp |
-
2011
- 2011-08-10 CN CN2011202893629U patent/CN202221493U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928982A (en) * | 2011-08-10 | 2013-02-13 | 上海雄博精密仪器股份有限公司 | Large-aperture parallel light beam expansion device and method |
| CN102943995A (en) * | 2012-12-03 | 2013-02-27 | 上海理工大学 | Solar simulator optical device with variable radiation surface sizes and variable collimation angles |
| CN104503088A (en) * | 2014-12-18 | 2015-04-08 | 北京首量科技有限公司 | Beam expander optical system for coherent illumination |
| CN111720800A (en) * | 2020-07-17 | 2020-09-29 | 上海艾葛诺照明科技有限公司 | Kepler type light beam imaging pattern lamp |
| CN113983426A (en) * | 2020-07-17 | 2022-01-28 | 上海艾葛诺照明科技有限公司 | Kepler type light beam imaging pattern lamp |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120516 |