CN203870322U - Fresnel lens system enabling focus to overlap - Google Patents
Fresnel lens system enabling focus to overlap Download PDFInfo
- Publication number
- CN203870322U CN203870322U CN201420181712.3U CN201420181712U CN203870322U CN 203870322 U CN203870322 U CN 203870322U CN 201420181712 U CN201420181712 U CN 201420181712U CN 203870322 U CN203870322 U CN 203870322U
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- focus
- fresnel lenses
- light
- fresnel
- overlap
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- Photovoltaic Devices (AREA)
Abstract
Provided is a Fresnel lens system enabling focuses to overlap. Focus positions after light condensation of Fresnel lenses can be adjusted and changed to make two or more focus light spots to superpose or overlap, so that the light intensity of superposed areas are doubled to meet requirements about light condensation of the Fresnel lenses and about high light intensity for engineering applications. A concave lens is disposed behind each of the Fresnel lenses and a focus of each Fresnel lenses. Because of reflection light condensation of each concave lens, the light direction of each corresponding Fresnel lens is changed after light condensation of the Fresnel lens to enable light that passes through the light condensation focus of the Fresnel lens to be focused in another position. If positions and angles of the concave lenses are changed, focus positions will correspondingly change, two or more focus light spots are made to superpose by adjusting the focus positions, and positions of the superposed light spots also can be adjusted. The Fresnel lens system helps to effectively solve problems that focuses of conventional Fresnel lenses are fixed without change and are poor in light intensity to bring inconvenience to some application occasions and even to cause low efficiency or waste so that requirements needed by some engineering practices cannot be met.
Description
The application's request: application number 201310228639.0, on June 9 2013 applying date, denomination of invention is the right of priority of the application for a patent for invention of the Fresnel Lenses system that focus can be overlapping.
Technical field
The utility model relates to the Fresnel Lenses system that a kind of focus can be overlapping, by two or more Fresnel Lenses and concave mirror, formed, can change the focal position after each Fresnel Lenses optically focused, two or more focus spot are overlapped or stack, thereby the light intensity of overlap-add region is doubled, to meet, in engineering practice, use Fresnel Lenses optically focused and the requirement to high light intensity.
Background technology
Fresnel Lenses is widely used in photovoltaic, photo-thermal system, yet the focus of existing Fresnel Lenses is changeless, or focus light intensity is limited, this makes troubles and even causes inefficiency or waste to some application scenario, can not meet the requirement of some engineering practice, affected the effective exploitation of sun power and made full use of.Develop Fresnel Lenses system that a kind of focus of variable-focus can be overlapping to solve problems for this reason.
Utility model content
The purpose of this utility model is to immobilize for solving the focus of existing Fresnel Lenses, focus light intensity is limited, make troubles to some application scenario and even cause inefficiency or waste, can not meet the requirement of some engineering practice, impact is to the effective exploitation of sun power and the problem making full use of.
The utility model relates to the Fresnel Lenses system that a kind of focus of variable-focus can be overlapping, comprises the first Fresnel Lenses, the first normal, and the first focus, the Fresnel Lenses system that this focus can be overlapping also comprises the first concave mirror, the first main shaft, the second focus; After directional light is by the first Fresnel Lenses top vertical incidence, due to reflection and the optically focused of the first concave mirror, make to focus on again the second focus by the light through the first focus after the first Fresnel Lenses optically focused.
In Fresnel Lenses system described in the utility model, also comprise the second Fresnel Lenses, the second normal, the second concave mirror, the second main shaft, the 3rd focus, the 4th focus; After directional light is by the second Fresnel Lenses top vertical incidence, due to reflection and the optically focused of the second concave mirror, make by focusing on again the 4th focus through trifocal light after the second Fresnel Lenses optically focused.
By regulating the first concave mirror and the second concave mirror, can make the second focus approach or overlap with the 4th focus, thereby this region light intensity is increased.
The utility model can change the focal position after Fresnel Lenses optically focused, two or more focus spot is overlapped or stack, thereby the light intensity of overlap-add region is doubled, and to meet, uses Fresnel Lenses optically focused and the requirement to high light intensity in engineering practice.
After Fresnel Lenses and focus thereof, concave mirror is set, reflection and optically focused due to concave mirror, changed the radiation direction after Fresnel Lenses optically focused, focal position after Fresnel Lenses optically focused is changed, the position and the angle that change concave mirror, focal position is corresponding change also, two or more focus spot is overlapped or stack, thereby the light intensity of overlap-add region is doubled, to meet the requirement of engineering of different occasions.
The utility model can change or regulate the focal position after Fresnel Lenses optically focused, two or more focus spot are overlapped or stack, thereby the light intensity of overlap-add region is doubled, to meet the various needs of different occasion focusing light intensity, effectively improve the development and utilization effect to sun power.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented take technical solutions of the utility model under prerequisite; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment 1
The focus of the present embodiment can be overlapping Fresnel Lenses system, comprise the first Fresnel Lenses 1, the first normal 2, the first focuses 3, the Fresnel Lenses system that this focus can be overlapping also comprises the first concave mirror 5, the first main shaft 4, the second focuses 6; After directional light is by the first Fresnel Lenses 1 top vertical incidence, due to reflection and the optically focused of the first concave mirror 5, make to focus on again the second focus 6 by the light through the first focus 3 after the first Fresnel Lenses 1 optically focused.
Angle between the first main shaft 4 of the first concave mirror 5 and the first normal 2 of the first Fresnel Lenses 1 is larger, and the second focus 6 is just more also relevant to the position of the second focus 6 away from the curvature of the first focus 3, the first concave mirrors 5.
Embodiment 2
The focus of the present embodiment can be overlapping Fresnel Lenses system, also comprise the second Fresnel Lenses 12, the second normal 11, the second concave mirror 8, the second main shaft 9, the three focus 10, the four focuses 7; After directional light is by the second Fresnel Lenses 12 top vertical incidence, due to reflection and the optically focused of the second concave mirror 8, make to focus on again the 4th focus 7 by the light through the 3rd focus 10 after the second Fresnel Lenses 12 optically focused.
Angle between the second main shaft 9 of the second concave mirror 8 and the second normal 11 of the second Fresnel Lenses 12 is larger, and the 4th focus 7 is just more also relevant to the position of the 4th focus 7 away from the curvature of the 3rd focus 10, the second concave mirrors 8.
Embodiment 3
In Fresnel Lenses system that can be overlapping in the focus of the present embodiment, by regulating the first concave mirror 5 and the second concave mirror 8, can make the second focus 6 approach or overlap with the 4th focus 7, thereby this region light intensity is increased.
The Fresnel Lenses system of the focus stack of the present embodiment adopts simple and with low cost concave mirror to change the focal position after Fresnel Lenses optically focused, two or more focus spot are overlapped or stack, thereby the light intensity of overlap-add region is doubled, to meet the various needs of different occasion focusing light intensity, effectively improve the development and utilization effect to sun power, expand application space and the scope of sun power.
Claims (3)
1. the Fresnel Lenses system that a focus can be overlapping, comprise the first Fresnel Lenses (1), the first normal (2), the first focus (3), it is characterized in that: the Fresnel Lenses system that this focus can be overlapping also comprises the first concave mirror (5), the first main shaft (4), the second focus (6); After directional light is by the first Fresnel Lenses (1) top vertical incidence, due to reflection and the optically focused of the first concave mirror (5), make to focus on again the second focus (6) by the light through the first focus (3) after the first Fresnel Lenses (1) optically focused.
2. the Fresnel Lenses system that focus according to claim 1 can be overlapping, is characterized in that, also comprises the second Fresnel Lenses (12), the second normal (11), the second concave mirror (8), the second main shaft (9), the 3rd focus (10), the 4th focus (7); After directional light is by the second Fresnel Lenses (12) top vertical incidence, due to reflection and the optically focused of the second concave mirror (8), make to focus on again the 4th focus (7) by the light through the 3rd focus (10) after the second Fresnel Lenses (12) optically focused.
3. the Fresnel Lenses system that focus according to claim 1 can be overlapping, it is characterized in that, by regulating the first concave mirror (5) and the second concave mirror (8), can make the second focus (6) approach or overlap with the 4th focus (7), thereby this region light intensity is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181712.3U CN203870322U (en) | 2013-06-09 | 2014-04-15 | Fresnel lens system enabling focus to overlap |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310228639 CN103336359A (en) | 2013-06-09 | 2013-06-09 | Fresnel lens system with overlapped focuses |
| CN201310228639.0 | 2013-06-09 | ||
| CN201420181712.3U CN203870322U (en) | 2013-06-09 | 2014-04-15 | Fresnel lens system enabling focus to overlap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203870322U true CN203870322U (en) | 2014-10-08 |
Family
ID=49244559
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310228639 Pending CN103336359A (en) | 2013-06-09 | 2013-06-09 | Fresnel lens system with overlapped focuses |
| CN201420181712.3U Expired - Fee Related CN203870322U (en) | 2013-06-09 | 2014-04-15 | Fresnel lens system enabling focus to overlap |
| CN201410150154.9A Pending CN103885164A (en) | 2013-06-09 | 2014-04-15 | Focus overlapping Fresnel lens system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310228639 Pending CN103336359A (en) | 2013-06-09 | 2013-06-09 | Fresnel lens system with overlapped focuses |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410150154.9A Pending CN103885164A (en) | 2013-06-09 | 2014-04-15 | Focus overlapping Fresnel lens system |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN103336359A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885164A (en) * | 2013-06-09 | 2014-06-25 | 盖志武 | Focus overlapping Fresnel lens system |
| CN112379470A (en) * | 2020-11-09 | 2021-02-19 | 荆门麦隆珂机器人科技有限公司 | Sliding shielding type variable focal length linear Fresnel lens robot |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10149427A (en) * | 1996-11-20 | 1998-06-02 | Brother Ind Ltd | Cortical scanning device, optical information reader and optical information recording device |
| DE102004013962A1 (en) * | 2003-12-22 | 2005-07-21 | Schott Ag | Fresnel lens spotlight for pocket lamp, has diffusing screen placed in center of fresnel lens to produce scattered light ratio and aperture angle of light to provide mixing ratio of light relative to another light imaged by lens |
| CN2913955Y (en) * | 2006-06-29 | 2007-06-20 | 中国科学技术大学 | Heat self-dissipating solar energy accumulation type photovoltaic electricity generating system |
| US20080305828A1 (en) * | 2007-06-06 | 2008-12-11 | Ching Sheng Chang | Dual-focus lens and electronic device having the same |
| CN102071777A (en) * | 2009-11-19 | 2011-05-25 | 管理 | Convex lens tiles for paving on total heat-gathering roof of solar thermal power station in embedding manner |
| CN201881060U (en) * | 2010-10-25 | 2011-06-29 | 北京印刷学院 | Rotating paraboloid light-focusing sunlight focusing cutter |
| CN101974764B (en) * | 2010-10-26 | 2012-03-21 | 江苏大学 | Solar thermophotovoltaic hydrogen generating device |
| CN202735580U (en) * | 2012-06-28 | 2013-02-13 | 许伟洪 | Two-time condenser |
| CN103336359A (en) * | 2013-06-09 | 2013-10-02 | 盖志武 | Fresnel lens system with overlapped focuses |
-
2013
- 2013-06-09 CN CN 201310228639 patent/CN103336359A/en active Pending
-
2014
- 2014-04-15 CN CN201420181712.3U patent/CN203870322U/en not_active Expired - Fee Related
- 2014-04-15 CN CN201410150154.9A patent/CN103885164A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885164A (en) * | 2013-06-09 | 2014-06-25 | 盖志武 | Focus overlapping Fresnel lens system |
| CN112379470A (en) * | 2020-11-09 | 2021-02-19 | 荆门麦隆珂机器人科技有限公司 | Sliding shielding type variable focal length linear Fresnel lens robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103336359A (en) | 2013-10-02 |
| CN103885164A (en) | 2014-06-25 |
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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: 20141008 Termination date: 20150415 |
|
| EXPY | Termination of patent right or utility model |