CN202948152U - Aspheric condensing lens and concentrated solar illumination system - Google Patents
Aspheric condensing lens and concentrated solar illumination system Download PDFInfo
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- CN202948152U CN202948152U CN2012204872621U CN201220487262U CN202948152U CN 202948152 U CN202948152 U CN 202948152U CN 2012204872621 U CN2012204872621 U CN 2012204872621U CN 201220487262 U CN201220487262 U CN 201220487262U CN 202948152 U CN202948152 U CN 202948152U
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- collector lens
- aspheric surface
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Abstract
The utility model discloses an aspheric condensing lens and a concentrated solar illumination system. The lens comprises two mirror surfaces which are opposed to each other. One mirror surface is a plane while the other mirror surface is a curved surface and formed by rotation of a curve. The curve satisfies an equation in a planar coordinate system composed of a Y-axis and a Z-axis. In the equation, R equals 78.292 and K is minus 0.586593. Y is a variable along the Y-axis direction. Z is a variable along the Z-axis direction. The curved surface is formed by the rotation of the curve around the Z-axis. By means of the design on the curved surface of the aspheric condensing lens, solar light is reflected through the lens and then condensed into a focal spot on a focus. The diameter of the focal spot can be controlled within 1 mm. The condensation effects are significantly improved. The aspheric condensing lens can be further applied to the solar illumination system for gathering solar light and then diffusing the light for direct illumination.
Description
Technical field
The utility model relates to optical field, especially a kind of aspheric surface collector lens and Photospot solar illuminator.
Background technology
Sun power is inexhaustible, nexhaustible renewable resource, and increasingly mature along with solar energy generation technology enjoys people to favor.In recent years, sun power to be applied in the whole world more and more extensive, particularly in the open air, as industries such as highway street lamp, tunnel illuminations, solar power supply system just progressively replaces some traditional power-supply devices, obtains more and more general application.
Present Salar light-gathering assembly adopts the aspheric surface collector lens as the single lens that converges sunshine usually, and one of them face of non-spherical lens radius-of-curvature everywhere changes with the height change from optical axis, thereby realizes minimum spherical aberration; Another side is convex surface or plane.These type of lens can be realized the short focal length optically focused that spherical lens is not accomplished, generally adopt the glass compacting to form, thereby realize easily the not manufacturing of the complex surface of easy grinding; But, existing aspheric surface collector lens is mainly used in solar electrical energy generation, focal spot place at lens arranges solar cell, sunshine after converging with reception, and be converted into electric energy, and focal spot can not be controlled in very little scope, focused spot diameter is usually greater than 3mm, be directly used in illumination if spread again after this type of non-spherical lens directly converges sunshine, often can't obtain desirable effect because focal spot is large.
The utility model content
The utility model provides a kind of aspheric surface collector lens and Photospot solar illuminator, is used for overcoming defective of the prior art, improves the spotlight effect of non-spherical lens, dwindles focal spot, and improves illuminator to the utilization factor of sunshine, and illuminating effect is desirable.
The utility model provides a kind of aspheric surface collector lens, and these lens comprise two minute surfaces that are oppositely arranged, and one of them minute surface is the plane, and another minute surface is a curved surface and formed by curve rotation, and described curve is satisfied in the plane coordinate system that y axle and z axle consist of:
Wherein: R=78.292, K=-0.586593, y are along the axial variable of y, and z is along the axial variable of z; Described curved surface is formed around the rotation of z axle by this curve.
Wherein, the curved surface peak of these lens is 15mm to the distance between the plane, and the diameter of these lens is 84mm.
Further, be coated with anti-reflection film for increasing visible light transmissivity on described curved surface.
Further, be coated with on described plane be used to filtering out ultraviolet ultraviolet cut-on film
The utility model is by the design to aspheric surface collector lens curved surface, make sunshine pool focal spot in focus after lens reflection, the diameter of focal spot can be controlled in 1mm, greatly improved spotlight effect, and can be used in utilize sunshine to converge in the sun light lighting system after again diffusion be directly used in illumination.
The utility model also provides a kind of Photospot solar illuminator, and this system is made of sun tracker, collective optics, photo-conduction cell and end diffuser, and described collective optics is above-mentioned aspheric surface collector lens.
Wherein, described photo-conduction cell is optical fiber, and described optical fiber one end is placed in the focal spot place of described aspheric surface collector lens, and the other end is over against the incident end of described end diffuser.
The Photospot solar illuminator that the utility model provides, adjust collective optics by solar tracking device sun-tracing angle of light degree, make the sunshine vertical irradiation collective optics plane of incidence all the time, converge after collective optics and be focal spot, by photo-conduction cell, the sunshine that converges is diffused into the space that needs illumination by the end diffuser again, because collective optics uses above-mentioned aspheric surface collector lens, greatly dwindle focal spot, reduced energy loss in the process of photo-conduction cell transmission, greatly improved utilization factor and the illuminating effect of sunshine.
Description of drawings
The schematic cross-section of the aspheric surface collector lens that Fig. 1 provides for the utility model embodiment;
The use state reference map of the aspheric surface collector lens that Fig. 2 provides for the utility model embodiment;
The structural representation of the Photospot solar illuminator that Fig. 3 provides for the utility model embodiment.
Embodiment
As shown in Fig. 1-2, the utility model embodiment provides a kind of aspheric surface collector lens, and these lens comprise two minute surfaces that are oppositely arranged, and one of them minute surface is plane 1, another minute surface is a curved surface 2 and formed by curve 20 rotation, and curve 20 is satisfied in the plane coordinate system that y axle and z axle consist of:
Wherein: R=78.292, K=-0.586593, y are along the axial variable of y shown in Figure 2, and z is along the axial variable of z shown in Figure 2, and curved surface 2 is formed around the rotation of z axle by curve 20.
The utility model is by the design to aspheric surface collector lens curved surface 2, sunray is pooling focal spot 3 in focus through curved surface 2 refractions after 1 refraction of plane, make the diameter of focal spot 3 can be controlled in 1mm, the shape of the size of focal spot 3 and curved surface 2 has direct relation, the lens of this programme have improved spotlight effect greatly, and can be used in the sun light lighting system, utilize sunshine to converge after again diffusion be directly used in illumination.
These lens curved surface 2 peaks are between plane 1 being 15mm apart from d, and the diameter ∮ of these lens is 84mm.the size of back focal length depends on the shape of lens curved surface 2, the thickness of lens is that lens curved surface 2 peaks are to the diameter ∮ apart from d and lens between plane 1, as shown in Figure 3, this bill can be that focal spot arrives vertical range L between aspheric surface collector lens plane 1 between 149.5mm ~ 105.5mm with back focal length, the words that back focal length is too large, can cause a large amount of losses when Energy Transfer, the words that back focal length is too little, the curvature of curved surface is larger, difficulty is larger in manufacturing process, the face type error of curved surface 2 is difficult to be controlled in λ/2, manufacturing cost can increase greatly, therefore in back focal length need to being arranged on a zone of reasonableness and being between 149.5mm ~ 105.5mm, just can take into account the energy process loss with manufacturing cost two aspect factors and its impact on lens performance is controlled in minimum zone.The face type error of lens curved surface 2 need to be controlled in λ/2 usually, and λ is visible light wavelength, and bearing temperature could satisfy service condition between-40 degree ~ 50 degree.
As shown in Figure 1, in order to increase visible light transmissivity, make visible light all converge on focus through lens, be coated with the anti-reflection film 4 for increasing visible light transmissivity on curved surface 2.
In order to end the harmful light such as ultraviolet ray in sunshine, be coated with on plane 1 be used to filtering out ultraviolet ultraviolet cut-on film 5.
As shown in Figure 3, the utility model embodiment also has a kind of Photospot solar illuminator, and this system is made of sun tracker 6, collective optics 7, photo-conduction cell 8 and end diffuser 9, and collective optics 7 is the aspheric surface collector lens of any embodiment.
solar tracking device is mature technology, be commonly used in solar power system, usually by the spherical instrument that can follow the tracks of the sunray irradiating angle with one more enough make whirligig that collective optics rotates and according to the sunray irradiating angle make whirligig with collective optics turn to its minute surface all the time the control device vertical with sunray consist of, the irradiating angle real-time follow-up of spherical instrument to sunray, and the incident angle of sunshine is passed to control device, control device can calculate according to the current incident angle of sunshine and the current angle of collective optics minute surface, draw the angle that collective optics rotates, and the instruction of this rotational angle is sent to whirligig, whirligig is carried out this instruction collective optics is turned to specified angle, guarantee sunshine direct projection collective optics minute surface all the time, to receive to greatest extent sunshine.
The Photospot solar illuminator that the utility model provides, by solar tracking device sun-tracing angle of light degree and adjust collective optics, make the sunshine vertical irradiation collective optics plane of incidence all the time, converge after collective optics and be focal spot, by photo-conduction cell, the sunshine that converges is diffused into the space that needs illumination by the end diffuser again, because collective optics uses above-mentioned aspheric surface collector lens, greatly dwindled focal spot, reduced energy loss in the process of photo-conduction cell transmission, greatly improved utilization factor and the illuminating effect of sunshine.
Photo-conduction cell 8 is optical fiber, and optical fiber one end is placed in focal spot 3 places of aspheric surface collector lens, and the other end is over against the incident end of end diffuser 9.The aspheric surface collector lens that adopts can be controlled at focal spot in 1mm, therefore can adopt the less optical fiber of energy process loss to come transmission light.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although with reference to aforementioned each embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (6)
1. aspheric surface collector lens, these lens comprise two minute surfaces that are oppositely arranged, and one of them minute surface is the plane, and another minute surface is a curved surface and is formed by the curve rotation, it is characterized in that, and described curve is satisfied in the plane coordinate system that y axle and z axle consist of:
Wherein: R=78.292, K=-0.586593, y are along the axial variable of y, and z is along the axial variable of z; Described curved surface is formed around the rotation of z axle by this curve.
2. aspheric surface collector lens according to claim 1, is characterized in that, the curved surface peak of these lens is 15mm to the distance between the plane, and the diameter of these lens is 84mm.
3. aspheric surface collector lens according to claim 1 and 2, is characterized in that, is coated with the anti-reflection film for increasing visible light transmissivity on described curved surface.
4. aspheric surface collector lens according to claim 1 and 2, is characterized in that, is coated with on described plane be used to filtering out ultraviolet ultraviolet cut-on film.
5. Photospot solar illuminator, this system is made of sun tracker, collective optics, photo-conduction cell and end diffuser, it is characterized in that, and described collective optics is the arbitrary described aspheric surface collector lens of the claims 1-4.
6. Photospot solar illuminator according to claim 5, is characterized in that, described photo-conduction cell is optical fiber, and described optical fiber one end is placed in the focal spot place of described aspheric surface collector lens, and the other end is over against the incident end of described end diffuser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204872621U CN202948152U (en) | 2012-09-21 | 2012-09-21 | Aspheric condensing lens and concentrated solar illumination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204872621U CN202948152U (en) | 2012-09-21 | 2012-09-21 | Aspheric condensing lens and concentrated solar illumination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948152U true CN202948152U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204872621U Expired - Fee Related CN202948152U (en) | 2012-09-21 | 2012-09-21 | Aspheric condensing lens and concentrated solar illumination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202948152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928895A (en) * | 2012-09-21 | 2013-02-13 | 长春理工大学 | Aspherical condensing lens and concentrated solar lighting system |
| CN111123415A (en) * | 2018-10-30 | 2020-05-08 | 帝宝工业股份有限公司 | Optical system, optical lens and construction method thereof |
-
2012
- 2012-09-21 CN CN2012204872621U patent/CN202948152U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928895A (en) * | 2012-09-21 | 2013-02-13 | 长春理工大学 | Aspherical condensing lens and concentrated solar lighting system |
| CN111123415A (en) * | 2018-10-30 | 2020-05-08 | 帝宝工业股份有限公司 | Optical system, optical lens and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20140921 |
|
| EXPY | Termination of patent right or utility model |