CN102252278A - Zoom laser illuminator - Google Patents
Zoom laser illuminator Download PDFInfo
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- CN102252278A CN102252278A CN 201110185055 CN201110185055A CN102252278A CN 102252278 A CN102252278 A CN 102252278A CN 201110185055 CN201110185055 CN 201110185055 CN 201110185055 A CN201110185055 A CN 201110185055A CN 102252278 A CN102252278 A CN 102252278A
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- zoom laser
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Abstract
The invention discloses a zoom laser illuminator. The invention adopts the technical scheme that: in the zoom laser illuminator, a first lens with positive refractive power, a second lens with negative refractive power and a third lens with the positive refractive power are sequentially arranged from the direction of an optical shaft to the direction of a luminous end face of a laser; the first lens can be away from the luminous end face of the laser firstly and then be close to an end face of the laser; the second lens always moves to the direction of the luminous end face of the laser; and the third lens is stable. The invention has the advantages that: the zoom laser illuminator is simple in structure and smart in design; the zoom laser illuminator adopts an architecture which consists of the first lens with the positive refractive power, the second lens with the negative refractive power and the third lens with the positive refractive power; and the zoom laser illuminator consists of three lenses, and 40-time focal distance change is realized by moving two lenses, so the high-penetration rate and easiness for assembly of the zoom laser illuminator are guaranteed, and cost is reduced.
Description
Technical field
The present invention is a kind of zoom laser illuminator.
Background technology
Existing laser illuminator, the overwhelming majority all is to adopt single or two lens are realized illumination, the focal length of this lighting system system is constant or change very little, realize the variation of light angle with the mode of out of focus, luminaire in this way is only very even at some angle illumination hot spots, all the other angle illumination hot spots are inhomogeneous, and for example utility model 200620084576.In addition, the highest luminance angle of luminaire is subjected to the dispersion angle restriction of optical fiber laser.
Summary of the invention
The present invention is in order to solve the problem of existence of the prior art, and provide that a kind of zoom ratio is big, the illumination hot spot is realized the zoom laser illuminator that throws light on uniformly with the principle of imaging technical scheme.
The present invention realizes by following technical measures: a kind of zoom laser illuminator, be disposed with to the laser instrument light emitting end surface along optical axis direction: the 3rd lens of first lens of positive refractive power, second lens of negative refractive power and positive refractive power, described first lens can be earlier away from the close again laser end face of laser instrument light emitting end surface, described second lens move to laser instrument light emitting end surface direction all the time, and described the 3rd lens maintain static.
Concrete characteristics of the present invention also have, change multiple proportions F2/F1 〉=40 of above-mentioned zoom laser illuminator, and F1≤2mm, and wherein, F1 is the effective focal length of the short burnt end of zoom laser illuminator, F2 is the effective focal length of the long burnt end of zoom laser illuminator.
Above-mentioned F2 〉=20mm.
The balsaming lens that the eyeglass two that above-mentioned first lens are served as reasons eyeglass one with positive refractive power and had negative refractive power is formed.
Above-mentioned zoom laser illuminator satisfies TOR1/F1≤57, total length when wherein TOR1 is for the short burnt end of zoom laser illuminator in TOR2/F2≤1.4, total length when TOR2 holds for long Jiao of zoom laser illuminator, F1 is the effective focal length of the short burnt end of zoom laser illuminator, and F2 is the effective focal length of the long burnt end of zoom laser illuminator.
It is identical greater than the radius of curvature on the biconcave lens of 6mm and two surfaces that above-mentioned second lens are diameter.
It is identical greater than the radius of curvature on the biconvex lens of 6mm and two surfaces that above-mentioned the 3rd lens are diameter.
The distance of above-mentioned the 3rd lens distance laser end face is greater than 2mm.
Above-mentioned second lens and the selected glassy phase of the 3rd lens are together.
Beneficial effect of the present invention is: it is simple in structure, design is ingenious, the framework that zoom laser illuminator of the present invention adopts positive and negative, positive three lens to form, during the descending variation of light angle, first lens are earlier away from the close again laser end face of laser end face, second set of lenses then moves to the laser end face direction all the time, and the 3rd lens then maintain static.Zoom laser illuminator of the present invention has three lens and forms, realize 40 times focal length variations by moving two lens, thereby the high permeability of zoom laser illuminator, easy assembling have been guaranteed, and reduced cost, the present invention adopts the principle of imaging to realize zoom laser lighting, because illumination requires not need the imaging image quality so high to the picture element of system, so the present invention has suitably reduced the picture element of imaging system, can realize the demand of big change multiple proportions and satisfied illumination.The bore of second, third lens of zoom laser illuminator of the present invention has reduced the requirement to the structure off-axis.The radius of curvature of second, third lens surface of zoom laser illuminator of the present invention is identical to make the easier assembling of antenna be difficult for loading error.
Description of drawings
Fig. 1 is the zoom laser illuminator structural representation of the specific embodiment of the invention.
Fig. 2 is the zoom curve chute schematic diagram on the zoom laser illuminator sliding sleeve of the specific embodiment of the invention.
Fig. 3 is long burnt, middle burnt short burnt the MTF curve map and the point range figure of the zoom laser illuminator of the specific embodiment of the invention.
Fig. 4 is the zoom laser illuminator illumination path schematic diagram of the specific embodiment of the invention.
The hot spot effect at 100m place when Fig. 5 is the illumination of the non-sequence simulation of the zoom laser illuminator zemax of specific embodiment of the invention wide-angle.
The hot spot effect at 2Km place when Fig. 6 is the illumination of the non-sequence simulation of the zoom laser illuminator zemax of specific embodiment of the invention low-angle.
Among the figure, 1, first lens, 2, second lens, the 3, the 3rd lens, 4, eyeglass one, 5, eyeglass two, 6, laser instrument light emitting end surface, 7, optical fiber laser, 8, the first lens curve chute, 9, the second lens curve chute.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by a specific embodiment, and in conjunction with it
Accompanying drawing is set forth this programme.
As shown in drawings, the present invention is a kind of zoom laser illuminator, be disposed with to the laser instrument light emitting end surface along optical axis direction: the 3rd lens of first lens of positive refractive power, second lens of negative refractive power and positive refractive power, described first lens can be earlier away from the close again laser end face of laser instrument light emitting end surface, described second lens move to laser instrument light emitting end surface direction all the time, and described the 3rd lens maintain static.
Change multiple proportions F2/F1 〉=40 of zoom laser illuminator, and F1≤2mm, wherein, F1 is the effective focal length of the short burnt end of zoom laser illuminator, F2 is the effective focal length of the long burnt end of zoom laser illuminator, F2 〉=20mm.
Wherein, the balsaming lens formed of first lens eyeglass two of serving as reasons eyeglass one and having negative refractive power with positive refractive power.The zoom laser illuminator satisfies TOR1/F1≤57, total length when wherein TOR1 is for the short burnt end of zoom laser illuminator in TOR2/F2≤1.4, total length when TOR2 holds for long Jiao of zoom laser illuminator, F1 is the effective focal length of the short burnt end of zoom laser illuminator, and F2 is the effective focal length of the long burnt end of zoom laser illuminator.It is identical greater than the radius of curvature on the biconcave lens of 6mm and two surfaces that second lens are diameter.It is identical greater than the radius of curvature on the biconvex lens of 6mm and two surfaces that the 3rd lens are diameter.The distance of the 3rd lens distance laser end face is greater than 2mm.Second lens and the selected glassy phase of the 3rd lens are together.
Light angle variation of the present invention is realized by external control signal control reducing motor.
Wherein, first lens, second lens and the 3rd lens can adopt following specific design parameter:
The present invention can pass through existing techniques in realizing without the technical characterictic of describing, and does not repeat them here.Certainly; above-mentioned explanation is not to be limitation of the present invention; the present invention also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also should belong to protection scope of the present invention.
Claims (9)
1. zoom laser illuminator, it is characterized in that, be disposed with to the laser instrument light emitting end surface along optical axis direction: the 3rd lens of first lens of positive refractive power, second lens of negative refractive power and positive refractive power, described first lens can be earlier away from the close again laser end face of laser instrument light emitting end surface, described second lens move to laser instrument light emitting end surface direction all the time, and described the 3rd lens maintain static.
2. zoom laser illuminator according to claim 1 is characterized in that, change multiple proportions F2/F1 〉=40 of described zoom laser illuminator, and F1≤2mm, wherein, F1 is the effective focal length of the short burnt end of zoom laser illuminator, and F2 is the effective focal length of the long burnt end of zoom laser illuminator.
3. zoom laser illuminator according to claim 2 is characterized in that, described F2 〉=20mm.
4. zoom laser illuminator according to claim 1 and 2 is characterized in that, the balsaming lens that the eyeglass two that described first lens are served as reasons eyeglass one with positive refractive power and had negative refractive power is formed.
5. zoom laser illuminator according to claim 1 and 2, it is characterized in that, described zoom laser illuminator satisfies TOR1/F1≤57, total length when wherein TOR1 is for the short burnt end of zoom laser illuminator in TOR2/F2≤1.4, total length when TOR2 holds for long Jiao of zoom laser illuminator, F1 is the effective focal length of the short burnt end of zoom laser illuminator, and F2 is the effective focal length of the long burnt end of zoom laser illuminator.
6. zoom laser illuminator according to claim 1 and 2 is characterized in that, it is identical greater than the radius of curvature on the biconcave lens of 6mm and two surfaces that described second lens are diameter.
7. zoom laser illuminator according to claim 1 and 2 is characterized in that, it is identical greater than the radius of curvature on the biconvex lens of 6mm and two surfaces that described the 3rd lens are diameter.
8. zoom laser illuminator according to claim 1 and 2 is characterized in that the distance of described the 3rd lens distance laser end face is greater than 2mm.
9. zoom laser illuminator according to claim 1 and 2 is characterized in that, described second lens and the selected glassy phase of the 3rd lens are together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110185055A CN102252278B (en) | 2011-07-04 | 2011-07-04 | Zoom laser illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110185055A CN102252278B (en) | 2011-07-04 | 2011-07-04 | Zoom laser illuminator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102252278A true CN102252278A (en) | 2011-11-23 |
| CN102252278B CN102252278B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110185055A Active CN102252278B (en) | 2011-07-04 | 2011-07-04 | Zoom laser illuminator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345049A (en) * | 2013-07-08 | 2013-10-09 | 山东神戎电子股份有限公司 | Variable-focal-length laser illuminator with controllable luminous surface size |
| CN104849845A (en) * | 2015-05-22 | 2015-08-19 | 山东神戎电子股份有限公司 | High-definition wide-angle zooming laser illuminator |
| CN106772809A (en) * | 2016-12-30 | 2017-05-31 | 中国电子科技集团公司第三十四研究所 | A kind of change angle of divergence emitter of wireless light communication antenna |
| WO2017101304A1 (en) * | 2015-12-16 | 2017-06-22 | 黄荣燊 | Adjustable round light spot torch |
| CN108267849A (en) * | 2018-01-10 | 2018-07-10 | 佛山华国光学器材有限公司 | A kind of remote zoom system, pancreatic system of big zoom ratio and laser illumination system |
| IT201900005374A1 (en) * | 2019-04-08 | 2020-10-08 | Artemide Spa | LIGHTING DEVICE, CAN ALSO BE USED AS A PROJECTOR |
| CN115183200A (en) * | 2022-07-11 | 2022-10-14 | 济南和普威视光电技术有限公司 | Super-large-angle large-zoom-ratio optical fiber coupling semiconductor laser lighting lens |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862309A (en) * | 2005-05-10 | 2006-11-15 | 横河电机株式会社 | Optical system and optical microscope |
| CN2906316Y (en) * | 2006-05-23 | 2007-05-30 | 济南神戎电子有限公司 | Far and wide range zooming device for semiconductor laser illuminating apparatus |
| CN201397418Y (en) * | 2009-03-04 | 2010-02-03 | 中山联合光电科技有限公司 | Periscopic high-resolution varifocal optical system with small volume and low cost |
| CN201532477U (en) * | 2009-08-24 | 2010-07-21 | 山东神戎电子股份有限公司 | Large-angle zooming illumination camera lens of optical fiber coupling semi-conductor laser |
-
2011
- 2011-07-04 CN CN201110185055A patent/CN102252278B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862309A (en) * | 2005-05-10 | 2006-11-15 | 横河电机株式会社 | Optical system and optical microscope |
| CN2906316Y (en) * | 2006-05-23 | 2007-05-30 | 济南神戎电子有限公司 | Far and wide range zooming device for semiconductor laser illuminating apparatus |
| CN201397418Y (en) * | 2009-03-04 | 2010-02-03 | 中山联合光电科技有限公司 | Periscopic high-resolution varifocal optical system with small volume and low cost |
| CN201532477U (en) * | 2009-08-24 | 2010-07-21 | 山东神戎电子股份有限公司 | Large-angle zooming illumination camera lens of optical fiber coupling semi-conductor laser |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345049A (en) * | 2013-07-08 | 2013-10-09 | 山东神戎电子股份有限公司 | Variable-focal-length laser illuminator with controllable luminous surface size |
| CN103345049B (en) * | 2013-07-08 | 2015-11-11 | 山东神戎电子股份有限公司 | A kind of Zoom laser illuminator of controllable luminous size |
| CN104849845A (en) * | 2015-05-22 | 2015-08-19 | 山东神戎电子股份有限公司 | High-definition wide-angle zooming laser illuminator |
| CN104849845B (en) * | 2015-05-22 | 2017-07-04 | 山东神戎电子股份有限公司 | High definition wide-angle Zoom laser illuminator |
| WO2017101304A1 (en) * | 2015-12-16 | 2017-06-22 | 黄荣燊 | Adjustable round light spot torch |
| US10488019B2 (en) | 2015-12-16 | 2019-11-26 | Rongshen Huang | Adjustable round light spot torch |
| CN106772809A (en) * | 2016-12-30 | 2017-05-31 | 中国电子科技集团公司第三十四研究所 | A kind of change angle of divergence emitter of wireless light communication antenna |
| CN108267849A (en) * | 2018-01-10 | 2018-07-10 | 佛山华国光学器材有限公司 | A kind of remote zoom system, pancreatic system of big zoom ratio and laser illumination system |
| CN108267849B (en) * | 2018-01-10 | 2020-07-28 | 佛山华国光学器材有限公司 | Large-zoom-ratio remote zooming system and laser lighting system |
| IT201900005374A1 (en) * | 2019-04-08 | 2020-10-08 | Artemide Spa | LIGHTING DEVICE, CAN ALSO BE USED AS A PROJECTOR |
| CN115183200A (en) * | 2022-07-11 | 2022-10-14 | 济南和普威视光电技术有限公司 | Super-large-angle large-zoom-ratio optical fiber coupling semiconductor laser lighting lens |
| CN115183200B (en) * | 2022-07-11 | 2023-11-24 | 济南和普威视光电技术有限公司 | Ultra-large-angle large-zoom-ratio optical fiber coupling semiconductor laser illumination lens |
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| CN102252278B (en) | 2012-09-05 |
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