CN201265803Y - Focal length-adjustable lamp - Google Patents
Focal length-adjustable lamp Download PDFInfo
- Publication number
- CN201265803Y CN201265803Y CNU2008201100172U CN200820110017U CN201265803Y CN 201265803 Y CN201265803 Y CN 201265803Y CN U2008201100172 U CNU2008201100172 U CN U2008201100172U CN 200820110017 U CN200820110017 U CN 200820110017U CN 201265803 Y CN201265803 Y CN 201265803Y
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- reflector
- mentioned
- lens
- exit lens
- focal length
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- Expired - Fee Related
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- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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Abstract
The utility model relates to the filed of an illuminating lamp, in particular to a lamp, the focus of which can be adjusted. The lamp comprises a spherical surface reflector, a light source and an emergent lens, wherein the reflecting surface of the spherical surface reflector is a deep ellipsoidal surface, the opening is positioned on the plane where a minor axis of the ellipsoidal surface is positioned; the light source is mounted at the first focus of the reflecting surface of the spherical surface reflector; the emergent lens is a non-spherical surface lens, and the center of the non-spherical surface lens is positioned on the central line of the reflecting surface. The emergent lens is in sliding connection with the reflector, and the sliding range of the emergent lens is between the first focus and the second focus of the ellipsoid reflector. The ellipsoid reflector is longer and deeper compared with the common reflector, preferably being a half of the ellipsoid. The lamp provides even auxiliary light and high brightness at each light projecting angle.
Description
Technical field
The utility model relates to field of illuminating lamps, and is particularly related to a kind of light fixture of adjustable focal length.
Background technology
Stage lamp is to embody best, the most direct instrument of light of stage art.There is not good light fixture, good again artistic conception, Xian Jin control system is all of no avail again, as source of sound good again in the sound system, Xian Jin power amplifier and peripheral equipment again, driving is loudspeaker inferior at last, will fall short of success for lack of final effort.So light the worker pay close attention to greatly to stage lamp always, wish to have the lighting effects that handy light fixture is realized ideal at stage.
At present, the size that often needs the conversion irradiation area in the stage illumination, lighting is to satisfy different lighting demands, for example scene alternately, though existing light fixture also can realize changing the purpose of projected area size, but can't realize light utilization efficiency maximization, reach the not only energy-conservation but also purpose of effectively throwing light on.
Summary of the invention
The utility model provides a kind of light fixture of adjustable focal length at above-mentioned the deficiencies in the prior art part.
A kind of light fixture of adjustable focal length comprises sphere reflector, light source and exit lens, and the reflective surface of above-mentioned sphere reflector is dark ellipsoid, and opening part is positioned at the place, plane, minor axis place of ellipsoid; Above-mentioned light source is installed in the first focus place of the reflective surface of sphere reflector; On the center line that is centered close to above-mentioned reflective surface of above-mentioned exit lens, above-mentioned exit lens adopts slidably connected mode connection so that reflector can relative exit lens slide with above-mentioned reflector.
Adopt chute to be connected between above-mentioned exit lens and the above-mentioned reflector.
The illuminator that above-mentioned reflector and light source are formed is motionless and lens move by chute.
Above-mentioned exit lens is the convex lens of aspheric surface.
The curved surface of above-mentioned exit lens is parabolic.
The focus of above-mentioned exit lens is on first focus and the major axis between the exit lens of reflective surface.
Above-mentioned light source is point-like refractive body incandescent lamp or gas-discharge lamp.
The illuminating ray excursion broad that the light fixture of this adjustable focal length sends finds needed illuminating area and best illuminating effect in can shining from the focus irradiation to the large tracts of land.Light fixture all can provide uniform shop light under various light projector angles, and high brightness.
Description of drawings
Fig. 1 is the structural representation of the light fixture of a kind of adjustable focal length described in the utility model.
Fig. 2 is the structural representation that has shell of the light fixture of a kind of adjustable focal length described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.For the person of ordinary skill in the field, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.
As shown in Figure 1, the light fixture of a kind of adjustable focal length described in the utility model comprises sphere reflector 1, light source 2, exit lens 3, wherein said sphere reflector 1 is dark ellipsoid, the more conventional reflector of this dark ellipsoid reflector longer (deeply), specifically be optimized for half of ellipsoid, its opening part is positioned at the place, plane, minor axis place of ellipsoid, certainly can there be the shell (not shown) of protection played and fixation its outside, the shape of shell can be arbitrarily, determine as required, be not subjected to restriction of the present utility model; Light source 2 is arranged at ellipsoid first focus 5 places of this reflector 1, light source 2 is point-like refractive body incandescent lamp or gas-discharge lamp, the shape of light source can be a shape as shown in the figure, it also can be the shape of any appropriate, be not limited to accompanying drawing, wherein the power of light source, color, intensity of illumination are with big or small relevant with reflector and exit lens, light source 2 can be installed in the reflector 1 by support or attaching parts, the outside of reflector 1 can also be connected and fixed device, in order to connect reflector 1 and shell; Exit lens 3 is convex lens of aspheric surface, for example curved surface is parabolic, certainly its curved surface can also be other the suitable curved surfaces except that sphere, exit lens 3 can be that one side is the plane, one side is a curved surface, can the two sides all be curved surface also, on the center line that is centered close to this reflector 14 of this exit lens 3, adopting slidably between this exit lens 3 and this reflector 1, connected mode is connected, chute connected mode for example shown in Figure 2, the illuminator that this reflector and light source are formed is motionless, and exit lens 3 camera lenses can be pushed closely or zoom out with respect to this illuminator along chute.By mobile exit lens 3, can be so that the position of exit lens 3 changes between the mid point 6 of the reflective surface of reflector 1 and second focus 5 '.At this moment, when second focus 5 ' that is positioned at ellipsoid when lens 3 was located, light reflexed to the incidence angle minimum of camera lens through reflector, and the rising angle of light fixture is also just minimum; When lens 3 dwindled with the distance of reflector 1, light strengthened through the incidence angle that reflector 1 reflexes to camera lens 3, the also corresponding expansion of the rising angle of light fixture, and the zoom function of light fixture is also reached with regard to corresponding.Simultaneously by moving this exit lens 3, can find the incident angle that will strengthen light in the position range of a position or plurality of continuous.
The lens of light fixture described in the utility model are a kind of non-spherical lenses, specifically are optimized for the parabolic surface lens.The characteristics of non-spherical lens are the printing opacity good evenness, can eliminate the speck and the blackening in light fixture light projector centre.The illuminating ray excursion broad that this ellipsoid light fixture sends finds needed illuminating area and best illuminating effect in can shining from the focus irradiation to the large tracts of land.Light fixture all can provide uniform shop light under various light projector angles, and high brightness.
Though; the utility model is clearly demonstrated by above embodiment and accompanying drawing thereof; yet under the situation that does not deviate from the utility model spirit and essence thereof; the person of ordinary skill in the field works as can make various corresponding variations and correction according to the utility model, but these corresponding variations and correction all should belong to the protection domain of claim of the present utility model.
Claims (7)
1. the light fixture of an adjustable focal length is characterized in that comprising sphere reflector, light source and exit lens, and the reflective surface of above-mentioned sphere reflector is dark ellipsoid, and opening part is positioned at the place, plane, minor axis place of ellipsoid; Above-mentioned light source is installed in the first focus place of the reflective surface of sphere reflector; Above-mentioned exit lens is a kind of non-spherical lens, on the center line that is centered close to above-mentioned reflective surface of exit lens, above-mentioned exit lens adopts slidably with above-mentioned reflector that connected mode is connected, and the sliding scale of exit lens is between first, second focus of ellipsoid reflector.
2. the light fixture of a kind of adjustable focal length according to claim 1 is characterized in that adopting chute to be connected between above-mentioned exit lens and the above-mentioned reflector.
3. the light fixture of a kind of adjustable focal length according to claim 2 it is characterized in that the illuminator that above-mentioned reflector and light source are formed is fixed, and said lens moves by above-mentioned chute.
4. the light fixture of a kind of adjustable focal length according to claim 1 is characterized in that above-mentioned exit lens is the convex lens of aspheric surface.
5. the light fixture of a kind of adjustable focal length according to claim 4 is characterized in that the curved surface of above-mentioned exit lens is parabola.
6. the light fixture of a kind of adjustable focal length according to claim 1, the focus that it is characterized in that above-mentioned exit lens is on first focus and the major axis between the exit lens of reflective surface.
7. the light fixture of a kind of adjustable focal length according to claim 1 is characterized in that above-mentioned light source is point-like refractive body incandescent lamp or gas-discharge lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201100172U CN201265803Y (en) | 2008-08-12 | 2008-08-12 | Focal length-adjustable lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201100172U CN201265803Y (en) | 2008-08-12 | 2008-08-12 | Focal length-adjustable lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265803Y true CN201265803Y (en) | 2009-07-01 |
Family
ID=40832171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201100172U Expired - Fee Related CN201265803Y (en) | 2008-08-12 | 2008-08-12 | Focal length-adjustable lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265803Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423655A (en) * | 2013-07-12 | 2013-12-04 | 深圳市福田区青少年科技教育协会 | Power-saving desk lamp |
| CN105674121A (en) * | 2014-11-20 | 2016-06-15 | 常熟市永祥机电有限公司 | Medical LED forehead light |
| WO2016107863A1 (en) | 2014-12-30 | 2016-07-07 | Nordgas S.R.L. | Lighting apparatus |
-
2008
- 2008-08-12 CN CNU2008201100172U patent/CN201265803Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423655A (en) * | 2013-07-12 | 2013-12-04 | 深圳市福田区青少年科技教育协会 | Power-saving desk lamp |
| CN105674121A (en) * | 2014-11-20 | 2016-06-15 | 常熟市永祥机电有限公司 | Medical LED forehead light |
| WO2016107863A1 (en) | 2014-12-30 | 2016-07-07 | Nordgas S.R.L. | Lighting apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING XINTIANHEYI ELECTROMECHANICAL PLANT ENGINE Free format text: FORMER OWNER: TANG DANTIAN Effective date: 20091106 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091106 Address after: 300 meters south, village committee of good stone village, north stone trough Town, Beijing, Shunyi District, China: 101315 Patentee after: Beijing Xintian Heyi Electromechanical Equipment Installation Engineering Co., Ltd. Address before: Beijing city Dongcheng District Dongzhimen South Street Maple Garden C No. 9 block 104, zip code: 100007 Patentee before: Tang Dantian |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20140812 |
|
| EXPY | Termination of patent right or utility model |