CN202419376U - LED (Light-Emitting Diode) spot lamp with continuous change of round spots and size - Google Patents
LED (Light-Emitting Diode) spot lamp with continuous change of round spots and size Download PDFInfo
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- CN202419376U CN202419376U CN2012200146438U CN201220014643U CN202419376U CN 202419376 U CN202419376 U CN 202419376U CN 2012200146438 U CN2012200146438 U CN 2012200146438U CN 201220014643 U CN201220014643 U CN 201220014643U CN 202419376 U CN202419376 U CN 202419376U
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Abstract
The utility model discloses an LED (Light-Emitting Diode) spot lamp with continuous change of round spots and the size. According to the LED spot lamp, all the light rays generated by a light source are utilized for gathering light no matter how the round spots change, and the high-efficiency light gathering function is achieved. The LED spot lamp comprises the LED light source and a lamp shell, wherein the LED light source is arranged in the lamp shell; a variable-focal-length mirror group is arranged at the front part of the LED light source in the lamp shell, and consists of a front fixed mirror group, a compensating mirror group for mutual displacement, and a rear fixed mirror group; and a focal-length-changing device for driving the compensating module to do a back-and-forth movement is arranged in the lamp shell. The LED spot lamp disclosed by the utility model has the beneficial effects that the purpose of changing the size of the light spots is achieved by arranging the variable-focal-length mirror group at the front part of the light source and changing the focal length between the two lens groups in the variable-focal-length mirror group, so that all the light rays generated by the light source are utilized, and the purpose of changing the size of the light spots can not be achieved by sacrificing partial light rays.
Description
Technical field:
The utility model relates to a kind of round spot and big I continually varying LED shot-light.
Background technology:
Its optically focused principle of existing LED spotlight is to utilize reflector or object lens to converge light to throw away; As shown in Figure 1, in order to change the size of projected spot, light hurdle 02 can be set at the front end of light source 01; Reach the purpose that changes spot size through the size that changes light hurdle 02; But such result has sacrificed luminous flux, and promptly some light can not be utilized, and wastes.
Summary of the invention:
The purpose of the utility model is in order to overcome the shortcoming of above-mentioned prior art, to provide a kind of spot of no matter justifying how to change, and whole light that light source produces all are utilized to optically focused, have the LED shot-light of high-effective concentration function.
The goal of the invention of the utility model can realize through following technical scheme: circle spot and big I continually varying LED shot-light, include led light source and lamp housing, and led light source places in the lamp housing, in lamp housing, the place ahead of led light source is provided with the varifocal mirror group.
Said varifocal mirror group is made up of compensating glass group, the back fixed mirror group of preceding fixed mirror group, each other displacement, is provided with in the lamp housing to drive the compensating glass group change focal length device of doing to move around.
Compared with prior art; The utlity model has following beneficial effect: through varifocal mirror group is set in light source the place ahead; Change the focal length between the two groups of lens in varifocal mirror group the inside; Reach the purpose that changes spot size, do like this and can all use whole light that light source produces, can not reach the purpose that spot size changes with sacrificial section light.
Description of drawings:
Fig. 1 is the structure chart of prior art LED shot-light;
Fig. 2 is the structural representation of the utility model LED shot-light.
The specific embodiment:
Below in conjunction with accompanying drawing this utility patent is described further.
The LED shot-light with high-effective concentration function of present embodiment includes led light source 1 and lamp housing 2, and led light source 1 places in the lamp housing 2, in lamp housing 2, the place ahead of led light source 1 is provided with varifocal mirror group 3.
Said varifocal mirror group 3 constitutes 33 by compensating glass group 32, the back fixed mirror group of preceding fixed mirror group 31, displacement each other, is provided with in the lamp housing 2 to drive the compensating glass group 32 change focal length device (not indicating among the figure) of doing to move around.
But this product is the optical lens that adopts a kind of zoom, when light passes through optical lens, has changed angle owing to changing when the optical lens focal length penetrates light, makes imaging facula changeable, but the not loss of total projection light flux.
The above only is the preferred embodiment of the utility model, is not the utility model is done any pro forma restriction.Any those of ordinary skill in the art; Do not breaking away under the utility model technical scheme scope situation; All the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to the utility model technical scheme, or are revised as the equivalent embodiment of equivalent variations.So every content that does not break away from the utility model technical scheme, the equivalence of doing according to shape, structure and the principle of the utility model changes, and all should be covered by in the protection domain of the utility model.
Claims (2)
1. justify spot and big I continually varying LED shot-light, include led light source and lamp housing, led light source places in the lamp housing, it is characterized in that: in lamp housing, the place ahead of led light source is provided with the varifocal mirror group.
2. round spot according to claim 1 and big I continually varying LED shot-light; It is characterized in that: said varifocal mirror group is made up of compensating glass group, the back fixed mirror group of preceding fixed mirror group, each other displacement, is provided with in the lamp housing to drive the compensating glass group change focal length device of doing to move around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200146438U CN202419376U (en) | 2012-01-12 | 2012-01-12 | LED (Light-Emitting Diode) spot lamp with continuous change of round spots and size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200146438U CN202419376U (en) | 2012-01-12 | 2012-01-12 | LED (Light-Emitting Diode) spot lamp with continuous change of round spots and size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202419376U true CN202419376U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200146438U Expired - Lifetime CN202419376U (en) | 2012-01-12 | 2012-01-12 | LED (Light-Emitting Diode) spot lamp with continuous change of round spots and size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202419376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9695993B2 (en) | 2013-04-26 | 2017-07-04 | Main Harbour International Limited | Long distance high intensity LED light with adjustable focus |
| CN110617843A (en) * | 2019-09-19 | 2019-12-27 | 上海兰宝传感科技股份有限公司 | Photoelectric sensor with adjustable light spot size and fixed focus position and adjusting method |
-
2012
- 2012-01-12 CN CN2012200146438U patent/CN202419376U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9695993B2 (en) | 2013-04-26 | 2017-07-04 | Main Harbour International Limited | Long distance high intensity LED light with adjustable focus |
| CN110617843A (en) * | 2019-09-19 | 2019-12-27 | 上海兰宝传感科技股份有限公司 | Photoelectric sensor with adjustable light spot size and fixed focus position and adjusting method |
| CN110617843B (en) * | 2019-09-19 | 2021-09-07 | 上海兰宝传感科技股份有限公司 | Photoelectric sensor with adjustable light spot size and fixed focus position and adjusting 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: 20120905 |