CN101852971A - LED news lamp - Google Patents
LED news lamp Download PDFInfo
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- CN101852971A CN101852971A CN 201010135894 CN201010135894A CN101852971A CN 101852971 A CN101852971 A CN 101852971A CN 201010135894 CN201010135894 CN 201010135894 CN 201010135894 A CN201010135894 A CN 201010135894A CN 101852971 A CN101852971 A CN 101852971A
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Abstract
The invention provides an LED (light-emitting diode) news lamp comprising a housing, a support, a drive circuit, a light source and an optical system, wherein the light source comprises a PCB (printed circuit board) assembly formed by splicing a plurality of PCBs; a plurality of low-power LED bulbs in array-shaped distribution are arranged on the PCBs; the optical system comprises a mirror assembly, an optical film and a grid; and a fixing and adjusting device is arranged between the optical film and the housing. By applying the optical film to the news lamp, a user cannot be dazzled by the light emitted by the light source on the surface of the LED bulbs; moreover, by integrating the color temperature, the color temperature of the light emitted by the light source on the surface of the LED bulbs can be more uniform; and by applying the low-power LED bulbs to the news lamp, the invention can ensure that the news lamp is energy-efficient and convenient for heat-dissipating and carrying.
Description
Technical field
The present invention relates to the LED lighting field, in particular for the news lamp of television broadcasting and news shooting.
Background technology
The use of TV news lamp has had more than ten years at home, and original import and homemade news lamp adopt halogen tungsten bulb to do light source, and light efficiency is higher than general osram lamp, only brings up to 20Lm/W from 10-15Lm/W, and the big efficient of hot merit loss is low.Along with science and technology development, colleges and universities of new generation light source occurs, as: the efficient luminotron of LED.It is energy-conservation, the advantage of high-photoelectric transformation efficiency has begun to eliminate the news lamp of making light source of halogen tungsten lamp.
The about 40-50Lm/W of the light efficiency of LED news lamp, energy-conservation, the life-span is long, about 50,000 hours, driving circuit was simpler, and now existing producer produces in batches, find that in use its illuminance is still not high enough, reason is that the efficient and the heat radiation of great power LED is unsatisfactory, increases the power of LED lamp pearl, can bring the problem of heat radiation, can only rely on the heat radiator that adds and solve heat dissipation problem, so increase the weight of the weight of whole lamp beyond doubt; In addition, in the present LED news lamp, mainly still utilize traditional Fresnel Lenses as luminous intensity distribution, well-known Fresnel Lenses is equivalent to the glass that thickness is arranged, and its weight is heavier, and utilizing these lens also is to have increased whole lamp weight as luminous intensity distribution undoubtedly; In the development of existing news lamp, the high trend that becomes of energy-conservation, easy to carry, light efficiency.
Summary of the invention
Technical matters to be solved by this invention provides a kind of LED news lamp, and optical thin film is applied in the news lamp, makes that the light that sends from LED lamp pearl area source is no longer dazzling; And can synthetic color temperature, make the colour temperature of the light that LED lamp pearl area source sends more even; Also make low power LED lamp pearl also can be applied on the news lamp, thereby solved energy-conservation, the heat radiation of news lamp, problem easy to carry.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of LED news lamp, comprise housing, and described housing is provided with support, is provided with driving circuit, light source, optical system in the described housing; Described light source comprises the pcb board group that is spliced by some pcb boards, and described pcb board is provided with several and is the low-power LED lamp pearl that matrix is arranged; Described optical system comprises reflector group, the optical thin film of being located at reflector group the place ahead of being located at pcb board group the place ahead, the grid of being located at optical thin film the place ahead, described reflector group is matrix by several small reflector groups and arranges and form, described each small reflector group is matrix by several reflectors and arranges and form, the corresponding pcb board of described each small reflector group, a LED lamp pearl on the corresponding pcb board of each reflector; Described optical thin film is fixed on the housing, and optical thin film is provided with fixedly adjusting gear at least on one side and between the housing, described fixedly adjusting gear comprises fixed mechanism and adjusting mechanism, described optical thin film is fixed on the fixed mechanism, described fixed mechanism is installed on the adjusting mechanism, and described adjusting mechanism is fixed on the housing.
In order to ensure the light efficiency of news lamp, pcb board is provided with a plurality of low power LED lamp pearls, and this low power LED lamp pearl only needs 0.02mA to drive, and thermal value is very little, does not need external heat radiator, has alleviated the weight of lamp body to a certain extent, has made things convenient for and has carried.Utilize optical thin film to replace the optical texture of traditional glass material, make that not only the light that sends from LED lamp pearl area source is not dazzling, can synthetic color temperature make the colour temperature of the light that LED lamp pearl area source sends even, and can effectively reduce the weight of news lamp, be easy to carry; It is pointed out that optical thin film of the present invention is a prior art, no longer is described in detail among the present invention.For making optical thin film can bring into play better effect, optical thin film need be across the LED area source of news lamp, and will be adjusted to parallel placement with area source; Though the both sides of optical thin film are fixed on the housing of news lamp, but because optical thin film thermoplasticity is relatively good, be subjected at optical thin film under the influence of self gravitation, the situation that optical thin film can occur being out of shape, when serious even influence the whole light efficiency of news lamp, perhaps when optical thin film is installed, do not install, also can influence news lamp when out-of-flatness appears in the optical thin film surface; The above-mentioned fixing adjusting gear of either way can adopting is adjusted the optical thin film of distortion again, be specially: one side elder generation's being fixed on the housing optical thin film, its opposite side is fixed on the fixed mechanism, fixed mechanism is installed on the adjusting mechanism, make fixed mechanism do the degree of tightness adjustment by adjusting mechanism, reach the purpose that makes the optical thin film surfacing together with optical thin film.
As improvement, described housing comprises back cover, fore shell, and described back cover is provided with some through holes, described driving circuit is located in the back cover, described light source and optical system are located in the fore shell, and edge, four limits, described fore shell the place ahead is equipped with a light barrier, and described light barrier and fore shell articulate.Through hole not only can reach the purpose that alleviates case weight, and can play the effect of heat radiation; Light barrier can be made the adjustment of angle to satisfy luminous requirement to the needs of light according to different scenes.
As improvement, described each reflection wall of cup is provided with reflectance coating, and described reflector is the side's of falling butt taper, comprises four reflectings surface, and described reflecting surface is symmetrical arranged, and becomes 45～75 ° with horizontal sextant angle.Reflectance coating the further reflection efficiency that improves LED lamp pearl is set, cooperate shape, the angle of reflector, make the light efficiency of low power LED lamp pearl reach maximum.
As improvement,, be provided with fixedly adjusting gear between the opposite side on described limit and the housing on one side described optical thin film is fixed on the housing.
As improvement, described adjusting mechanism comprises erecting frame, and described erecting frame is provided with adjusts the hole, adjusts in the hole and is provided with the adjustment screw rod, and described adjustment screw rod one end and erecting frame are spirally connected, and the other end stretches out outside the housing.Make erecting frame do small moving by the outer adjustment screw rod of rotary shell along adjusting screw rod, on one side because optical thin film is fixed on the fixed mechanism, and fixed mechanism is installed on the erecting frame, thereby the mobile purpose of tightening up optical thin film that played of erecting frame.
As improvement, described fixed mechanism comprises upper clip, lower clamping piece, and correspondence is provided with screw on the described upper and lower intermediate plate, and described optical thin film is located between the upper and lower intermediate plate.After being placed on optical thin film between the upper and lower intermediate plate, utilize screw lock again, guarantee that optical thin film can not break away from.
As improvement, described erecting frame is provided with "T"-shaped groove, and described upper clip is L-shaped, and described lower clamping piece is " Γ " shape, and described fixed mechanism is located in the "T"-shaped groove.Upper and lower intermediate plate is inserted in the "T"-shaped groove after clamping optical thin film, the structural limitations of "T"-shaped groove the axially-movable of upper and lower intermediate plate, erecting frame is guaranteed that upper and lower intermediate plate can be followed together to move when moving axially.
The beneficial effect that the present invention is compared with prior art brought is:
1) reflector group is matrix by several small reflector groups and arranges and form, and described each small reflector group is matrix by several reflectors arranges and form, and reflector group is divided into some, not only more attractive in appearance, and is convenient to dismounting;
2) reflector is the side's of falling butt taper, comprises four reflectings surface, and the pipe that makes LED lamp pearl send is more concentrated;
3) the reflection wall of cup is provided with reflectance coating, and each reflector is independently made optical processing to one of them LED lamp pearl, and reflectivity is higher, thereby improves the light efficiency of each LED lamp pearl;
4) news lamp area source the place ahead is provided with optical thin film, makes that the light send from LED lamp pearl area source is not dazzling, and can synthetic color temperature, makes the colour temperature of the light that LED lamp pearl area source sends even;
5) fixedly adjusting gear can be adjusted the optical thin film of distortion, makes the shape of optical thin film, position meet light distribution requirements, guarantees the light efficiency of news lamp.
Description of drawings
Fig. 1 is an external structure synoptic diagram of the present invention;
Fig. 2 is a back cover inner structure synoptic diagram of the present invention;
Fig. 3 is the optical system structure synoptic diagram;
Fig. 4 light-source structure synoptic diagram;
The A-A cut-open view of reflector group among Fig. 5 Fig. 4;
Fig. 6 is optical thin film and fixing adjusting gear fit structure synoptic diagram;
Fig. 7 is the A place enlarged drawing of Fig. 6.
Embodiment
The invention will be further described below in conjunction with Figure of description.
As shown in Figure 1, 2, a kind of LED news lamp comprises housing 1, support 2, driving circuit 3, light source, optical system.Described housing 1 comprises back cover 12, fore shell 11, described back cover 12 is provided with some through holes 121, and described driving circuit 3 is located in the back cover 12, and described light source and optical system are located in the fore shell 11, edge, four limits, described fore shell 11 the place aheads is equipped with a light barrier 8, and described light barrier 8 articulates with fore shell 11.As shown in Figure 4, described light source comprises the pcb board group 4 that six pcb boards 41 are spliced, and described every pcb board 41 is provided with several and is the low-power LED lamp pearl 42 that matrix is arranged.As shown in Figure 3, described optical system comprises reflector group 5, the optical thin film 6 of being located at reflector group 5 the place aheads of being located at pcb board group 4 the place aheads, the grid 7 of being located at optical thin film 6 the place aheads; As shown in Figure 5, described reflector group 5 is matrix by six small reflector groups 51 and arranges and form, described each small reflector group 51 is matrix by several reflectors 52 and arranges and form, described each small reflector group 51 corresponding pcb board 41, a LED lamp pearl 42 on each reflector 52 corresponding pcb board 41; Described each reflector 52 wall are provided with reflectance coating (not indicating), and described reflector 52 is the side's of falling butt taper, comprises four reflectings surface, and described reflecting surface is symmetrical arranged, and becomes 45～75 ° with horizontal sextant angle a.Shown in Fig. 6,7, described optical thin film 6 is fixed on the fore shell 11 on one side, be provided with fixedly adjusting gear 8 between the opposite side on described limit and the housing 1, described fixedly adjusting gear 8 comprises fixed mechanism and adjusting mechanism, described adjusting mechanism comprises erecting frame 84, described erecting frame 84 is elongated, is provided with in the middle of the erecting frame 84 " T " connected in star 83, notch is towards housing 1 inside; Described erecting frame 84 two ends and in " T " connected in star 83 both sides are equipped with and adjust hole 87, adjust to be provided with in the hole 87 and adjust screw rod 85, described adjustment screw rod 85 1 ends and erecting frame 84 are spirally connected, it is outer and be provided with and rotate nut 86 that the other end stretches out housing 1; Adjust screw rod 85 and be erected on the housing 1, not only can play the effect of fixing and mounting bracket 84, and adjust screw rod 85 and self can do rotation arbitrarily by housing 1.Described fixed mechanism comprises upper clip 81, lower clamping piece 82, and described upper clip 81 is elongated, and its xsect is L-shaped, and described lower clamping piece 82 is elongated, and its xsect is " Γ " shape; Correspondence is provided with screw (indicate) on the described upper and lower intermediate plate 81,82, by screw optical thin film 6 is fixed between the upper and lower intermediate plate 81,82, and upper and lower intermediate plate 81,82 clamps and is installed in erecting frame 84 behind the optical thin films 6 " T " in the connected in star 83.
Shown in Fig. 3 to 5, in order to ensure the light efficiency of news lamp, pcb board 41 is provided with a plurality of low power LED lamp pearls 42,42 needs 0.02mA of this low power LED lamp pearl drive, and thermal value is very little, does not need external heat radiator, alleviated the weight of lamp body to a certain extent, made things convenient for and carried.Remedy low-power LED lamp pearl 42 light efficiency defect of insufficient though be provided with a plurality of LED lamp pearls 42, but its overall light efficiency does not still satisfy the demand of news lamp, therefore before 42 groups on LED lamp pearl, added reflector group 5, reflector group 5 is matrix by reflector 52 and arranges and form, each reflector 52 corresponding LED lamp pearl 42, and reflector 52 walls are provided with reflectance coating, each reflector 52 is independently made optical processing to one of them LED lamp pearl 42, reflectivity is higher, thereby improves the light efficiency of each LED lamp pearl 42; Reflector 52 is the side's of falling butt taper, and the pipe that makes LED lamp pearl 42 send is more concentrated.
Shown in Fig. 6,7, utilize optical thin film 6 to replace the optical texture of traditional glass material, make that not only the light that sends from LED lamp pearl 42 area sources is not dazzling, can synthetic color temperature make the colour temperature of the light that LED lamp pearl 42 area sources send even, and can effectively reduce the weight of news lamp, be easy to carry.It is pointed out that optical thin film 6 of the present invention is prior art, no longer is described in detail in the present embodiment.The light that emits from optical thin film 6 penetrates through grid 7 again, and grid 7 can play the effect of the emission angle that tightens up light, to satisfy the needs of photographic scene.According to different on-the-spot demands to light, light barrier 8 is made the adjustment of different angles to satisfy luminous requirement.
Shown in Fig. 3,6,7, during installation, one side earlier with being fixed on the fore shell 11 of optical thin film 6, its opposite side places between the upper and lower intermediate plate 81,82, wait optical thin film 6 set level neat after, lock screw optical thin film 6 be fixed between the upper and lower intermediate plate 81,82; Upper and lower intermediate plate 81,82 after will locking again assigns into erecting frame 84 " T " in the connected in star 83; Adjustment screw rod 85 passes housing 1 and stretches in the housing 1, and being spirally connected with erecting frame 84 to be fixed on the housing 1 whole adjusting mechanism and fixed mechanism.When optical thin film 6 distortion occurs or out-of-flatness is installed when having a strong impact on the whole light efficiency of news lamp, make erecting frame 84 do small moving by rotation nut 86 rotary shells 1 outer adjustment screw rod 85 along adjusting screw rod 85, because optical thin film 6 is fixed on the fixed mechanism on one side, fixed mechanism is installed on the erecting frame 84, thus the mobile purpose of tightening up optical thin film 6 that played of erecting frame 84.
Among the present invention, reflector group 5 is matrix by several small reflector groups 51 arranges and forms, and described each small reflector group 51 is matrix by several reflectors 52 arranges and form, and reflector group 5 is divided into some, not only more attractive in appearance, and is convenient to dismounting; Reflector 52 is the side's of falling butt taper, comprises four reflectings surface, and the pipe that makes LED lamp pearl 42 send is more concentrated; Reflector 52 walls are provided with reflectance coating, and each reflector 52 is independently made optical processing to one of them LED lamp pearl 42, and reflectivity is higher, thereby improve the light efficiency of each LED lamp pearl 42; News lamp area source the place ahead is provided with optical thin film 6, makes that the light that sends from LED lamp pearl 42 area sources is not dazzling, and can make colour temperature even by synthetic color temperature; Fixedly adjusting gear 8 can be adjusted the optical thin film 6 of distortion, makes the shape of optical thin film 6, position meet light distribution requirements, guarantees the light efficiency of news lamp.
Claims (7)
1. a LED news lamp comprises housing, and described housing is provided with support, is provided with driving circuit, light source, optical system in the described housing; It is characterized in that: described light source comprises the pcb board group that is spliced by some pcb boards, and described pcb board is provided with several and is the low-power LED lamp pearl that matrix is arranged; Described optical system comprises reflector group, the optical thin film of being located at reflector group the place ahead of being located at pcb board group the place ahead, the grid of being located at optical thin film the place ahead, described reflector group is matrix by several small reflector groups and arranges and form, described each small reflector group is matrix by several reflectors and arranges and form, the corresponding pcb board of described each small reflector group, a LED lamp pearl on the corresponding pcb board of each reflector; Described optical thin film is fixed on the housing, and optical thin film is provided with fixedly adjusting gear at least on one side and between the housing, described fixedly adjusting gear comprises fixed mechanism and adjusting mechanism, described optical thin film is fixed on the fixed mechanism, described fixed mechanism is installed on the adjusting mechanism, and described adjusting mechanism is fixed on the housing.
2. a kind of LED news lamp according to claim 1, it is characterized in that: described housing comprises back cover, fore shell, described back cover is provided with some through holes, described driving circuit is located in the back cover, described light source and optical system are located in the fore shell, edge, four limits, described fore shell the place ahead is equipped with a light barrier, and described light barrier and fore shell articulate.
3. a kind of LED news lamp according to claim 1 is characterized in that: described each reflection wall of cup is provided with reflectance coating, and described reflector is the side's of falling butt taper, comprises four reflectings surface, and described reflecting surface is symmetrical arranged, and becomes 45～75 ° with horizontal sextant angle.
4. a kind of LED news lamp according to claim 1 is characterized in that: on one side described optical thin film is fixed on the housing, be provided with fixedly adjusting gear between the opposite side on described limit and the housing.
5. a kind of LED news lamp according to claim 4, it is characterized in that: described adjusting mechanism comprises erecting frame, and described erecting frame is provided with adjusts the hole, adjusts in the hole and is provided with the adjustment screw rod, described adjustment screw rod one end and erecting frame are spirally connected, and the other end stretches out outside the housing.
6. a kind of LED news lamp according to claim 5, it is characterized in that: described fixed mechanism comprises upper clip, lower clamping piece, and correspondence is provided with screw on the described upper and lower intermediate plate, and described optical thin film is located between the upper and lower intermediate plate.
7. a kind of LED news lamp according to claim 6, it is characterized in that: described erecting frame is provided with "T"-shaped groove, and described upper clip is L-shaped, and described lower clamping piece is " Γ " shape, and described fixed mechanism is located in the "T"-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101358947A CN101852971B (en) | 2010-03-26 | 2010-03-26 | LED news lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101358947A CN101852971B (en) | 2010-03-26 | 2010-03-26 | LED news lamp |
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| Publication Number | Publication Date |
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| CN101852971A true CN101852971A (en) | 2010-10-06 |
| CN101852971B CN101852971B (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101358947A Active CN101852971B (en) | 2010-03-26 | 2010-03-26 | LED news lamp |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494248A (en) * | 2011-11-27 | 2012-06-13 | 东莞市博伦光电科技有限公司 | Portable lamp |
| CN102722063A (en) * | 2012-06-19 | 2012-10-10 | 温州市长城影视器材有限公司 | Digital camera light |
| WO2012142722A1 (en) * | 2011-04-18 | 2012-10-26 | Liu Jiang | A high-power news lamp |
| WO2012155533A1 (en) * | 2011-05-13 | 2012-11-22 | Lin Biguang | Front panel for housing of led video light |
| CN103389608A (en) * | 2013-07-24 | 2013-11-13 | 黄菁竹 | LED news gathering lamp |
| CN115218142A (en) * | 2022-07-05 | 2022-10-21 | 浙江星科电子有限公司 | LED electronic lamp processing method |
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| CN1549013A (en) * | 2003-05-07 | 2004-11-24 | 瀚宇彩晶股份有限公司 | Liquid crystal display and back light module thereof |
| CN201017565Y (en) * | 2007-03-26 | 2008-02-06 | 刘振亮 | Grid shaped fringes display module group |
| CN201173426Y (en) * | 2008-04-11 | 2008-12-31 | 深圳市鼎立照明有限公司 | High light efficiency LED lamps |
| US20090323334A1 (en) * | 2008-06-25 | 2009-12-31 | Cree, Inc. | Solid state linear array modules for general illumination |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549013A (en) * | 2003-05-07 | 2004-11-24 | 瀚宇彩晶股份有限公司 | Liquid crystal display and back light module thereof |
| CN201017565Y (en) * | 2007-03-26 | 2008-02-06 | 刘振亮 | Grid shaped fringes display module group |
| CN201173426Y (en) * | 2008-04-11 | 2008-12-31 | 深圳市鼎立照明有限公司 | High light efficiency LED lamps |
| US20090323334A1 (en) * | 2008-06-25 | 2009-12-31 | Cree, Inc. | Solid state linear array modules for general illumination |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012142722A1 (en) * | 2011-04-18 | 2012-10-26 | Liu Jiang | A high-power news lamp |
| WO2012155533A1 (en) * | 2011-05-13 | 2012-11-22 | Lin Biguang | Front panel for housing of led video light |
| CN102494248A (en) * | 2011-11-27 | 2012-06-13 | 东莞市博伦光电科技有限公司 | Portable lamp |
| CN102722063A (en) * | 2012-06-19 | 2012-10-10 | 温州市长城影视器材有限公司 | Digital camera light |
| CN103389608A (en) * | 2013-07-24 | 2013-11-13 | 黄菁竹 | LED news gathering lamp |
| CN115218142A (en) * | 2022-07-05 | 2022-10-21 | 浙江星科电子有限公司 | LED electronic lamp processing method |
| CN115218142B (en) * | 2022-07-05 | 2023-04-28 | 浙江星科电子有限公司 | LED electronic lamp processing method |
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| Publication number | Publication date |
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| CN101852971B (en) | 2011-09-14 |
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