CN100576060C - A kind of LED light projector image forming apparatus - Google Patents
A kind of LED light projector image forming apparatus Download PDFInfo
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- CN100576060C CN100576060C CN200710194122A CN200710194122A CN100576060C CN 100576060 C CN100576060 C CN 100576060C CN 200710194122 A CN200710194122 A CN 200710194122A CN 200710194122 A CN200710194122 A CN 200710194122A CN 100576060 C CN100576060 C CN 100576060C
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- led lamp
- lamp pearl
- image forming
- forming apparatus
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Abstract
The invention discloses a kind of LED light projector image forming apparatus, comprise support, shell and the imaging system that sets gradually, rotating disc, light source, imaging system, rotating disc are rack-mount, it is characterized in that: described light source is become by the LED lamp pearl group that a plurality of LED lamp pearls constitute, each LED lamp pearl is distributed on the optically focused concave surface, and the luminous end of each LED lamp pearl is towards the focus of the inboard of concave surface and sensing concave surface.Be provided with radiator structure in LED lamp pearl bottom, it is by a cylinder and be evenly distributed on the strip shape body that the cylinder outer peripheral face is divergent shape and constitute, between the two adjacent strip shape bodies of same circumferential cross-section, be provided with the gap, also be provided with the gap between the two adjacent strip shape bodies of the axial direction of cylinder, the axial line of radiator structure overlaps with the axial line of LED luminophor.The present invention has energy-conservation, good heat dissipation effect, long service life, advantage such as dustproof than existing similar technology, can be widely used in the products such as projection lamp, Adjustable head lamp.
Description
Technical field
The present invention relates to field of photoelectric technology, is a kind of LED light projector image forming apparatus specifically.
Background technology
At present, light projector image forming apparatus generally is by support, shell, and the imaging system that sets gradually, rotating disc and light source constitute, the Lights section needs to penetrate the light units of high light, optically focused, has adopted the ordinary lamps optical tech in existing equipment mostly, and big gun for example discharges.Adopt the discharge big gun following shortcoming to be arranged as the light source of this kind equipment:
1, most is arranged is infrared ray (heat) to the light that shoots out with discharge bulb, and this heat must be sent away from optics, so optical system must have a cooling system.And the common usefulness of this cooling system is blower fan, thus in optical devices, generally the environment sealing of itself and outside cannot be separated, because it needs air inlet and air outlet reduces the heat in the optical system.The another one problem that exists huge heat in optical system is that the material of pattern segments, color chips, other optical effect sheets must be anti-hot material.And these anti-hot materials generally are difficult production, so also very expensive.Besides we know that also the life-span of other accessories as motor, Hall, line plate or the like also can be subjected to the influence of heat.
2, discharge bulb also has other about technical more distinctive shortcomings: the 1) life-span short (for example: the life-span of 1200W bulb is about 1000 hours, and the life-span of 250W bulb is about 3000 hours); 2) can not from 100% to 0% light modulation smoothly; 3) be operated under the situation of relatively low wattage, the life-span of bulb can shorten (such as: life-span of bulb can be in 100% time work of wattage than long in 30% time work of wattage); 4) discharge bulb is not easy stroboscopic; 5) most of discharge bulb needs the time of preheating.
3, in equipment, also a reflector to be set, to reach better spotlight effect.
In the light projector image forming apparatus technology, the equipment that adopts LED to make light source is also arranged, LED (LightEmitting Diode) wherein, the english abbreviation of light emitting diode, yet, a plurality of LED lamp pearls that the LED light fixture equipment of present invention is adopted all are that a shared heat radiator is fitted together all LED lamp pearls when making up, like this, when any LED lamp pearl is overheated, this heat can improve the temperature of monoblock heat radiator, thereby lowered the function of heat radiator heat radiation, even might cause the too high even breaking-up of temperature of other lamp pearls.
Summary of the invention
The purpose of this invention is to provide a kind of energy-conservation, good heat dissipation effect, long service life, can be widely used in the LED light projector image forming apparatus of products such as projection lamp, Adjustable head lamp.
Further improving is the dustproof effect that will improve product.
The present invention realizes by following technical proposals:
A kind of LED light projector image forming apparatus, comprise support, shell, and the imaging system that sets gradually, rotating disc, light source, imaging system, rotating disc is rack-mount, it is characterized in that: described light source is become by the LED lamp pearl group that a plurality of LED lamp pearls constitute, each LED lamp pearl is distributed on the optically focused concave surface, the luminous end of each LED lamp pearl is towards the focus of the inboard of concave surface and sensing concave surface, on each LED lamp pearl, be provided with a radiator structure, described radiator structure is by a cylinder and be evenly distributed on the strip shape body that the cylinder outer peripheral face is divergent shape and constitute, between the two adjacent strip shape bodies of same circumferential cross-section, be provided with the gap, also be provided with the gap between the two adjacent strip shape bodies of the axial direction of cylinder, the axial line of radiator structure overlaps with the axial line of LED luminophor.
Described concave surface is sphere or parabolic surface.
Described cylinder is one to be provided with the right cylinder of central through hole.
The front portion of the luminous end of described each LED lamp pearl is provided with light-gathering optics lens.
The either side of the both sides of the focus of described concave surface or be provided with an optical lens at the focus place.
Be provided with a burnt mirror of focusing between described optical lens and the imaging system, Jiao Jingke moves along optical axis.
Described rotating disc is rotatable, is driven by Electronic Control by a motor or electric mechanical accessory, can load pattern segments or color chips or optical effect sheet on the rotating disc.
Pattern segments that loads on the described rotating disc or color chips or optical effect sheet are diaphragm or the filters that forms by printing.
The present invention has the following advantages:
1. because light source is become by the LED lamp pearl group that a plurality of LED lamp pearls constitute, and each LED lamp pearl is distributed on the optically focused concave surface, the luminous end of each LED lamp pearl is towards the focus of the inboard of concave surface and sensing concave surface.Make LED lamp pearl group become an optical system that can penetrate the combined light that the light direction is roughly the same like this, the combined light brightness that this optical system shoots out is near the total brightness summation of LED lamp pearl brightness all on the curvilinear surface, and the effect that the combined light that it shoots out belongs to level and smooth brightness is the light that naked eyes can be seen, and the principle of an optical system has been proposed, just by adopting a plurality of LED lamp pearls to make the effect that the optically focused image maybe can focus and no longer need to reach the optically focused imaging effect by the reflector device.The invention provides the optical system that to use pattern segments, color chips and the optical effect sheet manufactured easily.This shows that the present invention can particularly in the light projector image forming apparatus of light of stage equipment such as projection lamp or Adjustable head lamp, can replace the ordinary lamps optical tech at the Lights section fully as the occasion of various light projector image forming apparatus, bulb for example discharges.In addition, can save the reflector device, that is to say, utilize the Lights section of the present invention can directly replace traditional " discharge bulb+reflector device ".
2. owing to be on each LED lamp pearl, to be provided with a radiator structure, radiator structure is by a cylinder and be evenly distributed on the strip shape body that the cylinder outer peripheral face is divergent shape and constitute, between the two adjacent strip shape bodies of same circumferential cross-section, be provided with the gap, between the two adjacent strip shape bodies of cylinder axial direction, also be provided with the gap, the axial line of radiator structure and circuit board central lines.That is to say and the invention provides one effectively and the heat dissipating method of independent isolating.Because the radiator structure that each LED lamp pearl all has independent isolating is so the heat of LED lamp pearl also is an independent isolating.Therefore; in whole device, it is little that LED lamp pearl is subjected to the influence of heat of other LED lamp pearl, if having a LED lamp pearl or some LED lamp pearl heats too high; before heat can flow to other LED lamp pearls, other LED lamp pearl and accessories of light fixture meeting power-off protection light fixture the inside.Thus, use independently LED lamp pearl radiator structure, the problems of excessive heat of LED lamp pearl just can not cause the influence to other LED lamp pearls.In the present invention, cylinder becomes a bulk of solid core heat sink material and is positioned over central authorities, thereby can remove the heat of LED light projector image forming apparatus apace, be the setting of the strip shape body of divergent shape, and between the two adjacent strip shape bodies of same circumferential cross-section, be provided with the gap, between the two adjacent strip shape bodies of cylinder axial direction, also be provided with the gap, thereby increased the surface area of heat abstractor, so can in very short time, heat be spread in the ambient air.The structural design in these gaps makes the circulation of air inside heat abstractor apart from shortening, and heat is easier to loose, and therefore, hot-air just can not be trapped in the heat abstractor the inside yet, but discharges together with other peripheral air apace.The design of the radiator structure of LED lamp pearl of the present invention not only allows a lot of strip shape bodies arrange very compactly in very little scope, also makes the radiator structure of each LED lamp pearl have big as far as possible area simultaneously.The diameter of the radiator structure of each LED lamp pearl and sectional dimension can be adjusted accordingly according to the setting angle of distance between the LED lamp pearl or LED lamp pearl.Because being the shape of concave surface, LED lamp pearl group arranges, so the radiator structure of each LED lamp pearl also is on the plane of a curve, at this moment big (strip shape body is long more than the mean distance between on the same smooth plane for the mean distance between the radiator structure, distance between the strip shape body is just big more), so the distance between the radiator structure of LED lamp pearl is big more, the volume of LED lamp pearl group's radiator structure and area also just can design big more, and the air between the radiator structure also just can be unblocked everywhere.
3. the front portion of each LED lamp pearl is provided with light-gathering optics lens, can gather the light of LED lamp pearl in the light beam in a small angle range like this, helps the spotlight effect of whole light source.
4, owing to be provided with an optical lens at the either side of the both sides of the focus of concave surface or at the focus place, can change the size of the angle of the light that shoots out like this, only allow simultaneously useful light by pattern segments, color chips, optical effect chip system, thereby penetrate the image and the result of broadcast that will reach, in addition, exactly light path part has been sealed, stoped the entering of dust of external environment condition, thereby reduced necessity of conventional cleaning and maintenance.
5, as can be known, between led light source and imaging mirror, can inject any pattern segments, color chips, optical effect sheet, can from the light that shoots out, show different effects by structure of the present invention.Pattern segments, color chips, optical effect sheet can comprise it being the object of Any shape, size, material, color, transparency and other optical characteristics.The characteristic of these objects has changed the shape of light beam and appearance in the process of carrying light to come out.And this also should comprise the equipment that can send the light of different colours with the optical effect sheet of various colors.As long as the material of suitable and correct parameter is arranged, probably just can be used for optical sheet (for example, as preventing that unnecessary light from passing through).Such as, when using the equipment of circular pattern segments, need use one equally also has circle and shape to follow pattern segments identical, even the optical sheet that size also should be roughly the same.
6, because LED light belongs to cold light, the opticator of equipment can seal, and dust just can't enter optical system, so pattern segments, color chips, optical effect sheet do not need often to clean.
7, because pattern segments that loads on the rotating disc or color chips or optical effect sheet are diaphragm or the filters that forms by printing, this is to the only cold light (not having infrared ray) that shoots out previously because of led light source, so pattern segments, color chips, the optical effect sheet can be with the material of anti-heat such as diaphragm or filter, so production pattern segments, color chips, the expense of optical effect sheet has also reduced widely, exactly because also production pattern segments, color chips, the optical effect sheet no longer has been the thing of a complicated difficulty, so their complicacy and optical quality have also just improved thereupon.
Description of drawings
Fig. 1 is a LED light projector image forming apparatus structural representation of the present invention;
Fig. 2 is the structural representation of LED light projector image forming apparatus LED lamp pearl of the present invention;
Fig. 3 is a LED light projector image forming apparatus side schematic view of the present invention.
Embodiment
Below in conjunction with accompanying drawing LED light projector image forming apparatus of the present invention is further described:
As Fig. 1, Fig. 2, shown in Figure 3, LED light projector image forming apparatus of the present invention, comprise support 1, shell 2 and the imaging system 3 that sets gradually, rotating disc 4, light source 5, imaging system 3, rotating disc 4 are installed on the support 1, light source 5 is arranged by the shape of concave surface 51 by LED lamp pearl group 52 and is formed, and the luminous end of each LED lamp pearl is towards the focus of the inboard of concave surface 51 and sensing concave surface 51.Wherein the luminous end of each LED lamp pearl points to the focus of concave surface 51, is meant towards focus or positive alignment focus.Concave surface 51 is sphere or parabolic surface.Each LED lamp pearl is provided with a radiator structure, this radiator structure is by a cylinder 521 and be evenly distributed on the strip shape body 522 that cylinder 521 outer peripheral faces are divergent shape and constitute, between the two adjacent strip shape bodies of same circumferential cross-section, be provided with gap 526, also be provided with gap 525 between the two adjacent strip shape bodies of the axial direction of cylinder, the axial line of radiator structure overlaps with the axial line of LED lamp pearl.Cylinder 521 is one to be provided with the right cylinder of central through hole 524.Be evenly distributed on the strip shape body 522 that cylinder 521 outer peripheral faces are divergent shape and also can make the sheet bodily form.LED lamp pearl cabling is convenient in the setting of central through hole 524, also is convenient to heat radiation.
The front portion of the luminous end of each LED lamp pearl is provided with light-gathering optics lens 523.The either side of the both sides of the focus of concave surface or be provided with an optical lens at the focus place, optical lens can be a magnifier, generally is the size that is used to change the angle of the light that shoots out, and this magnifier also has the another one purposes, exactly light path part has been sealed, stoped the dust of external environment condition to enter.Be provided with a burnt mirror of focusing between optical lens and the imaging system, Jiao Jingke moves (light-gathering optics lens, optical lens and burnt mirror are all not shown in the drawings) along optical axis.Rotating disc 4 is rotatable, is driven by Electronic Control by a motor or electric mechanical accessory, can load pattern segments or color chips or optical effect sheet on the rotating disc 4, and this pattern segments or color chips or optical effect sheet are diaphragm or the filters that forms by printing.
LED lamp pearl unitized construction of the present invention has pointed out how can penetrate method of patterning with a plurality of LED lamp pearl combined light.The only a kind of roughly equidirectional combined light that these LED lamp pearls shoot out (it is only equidirectional that most of single LED lamp pearl shoots out), and the brightness of combined light is level and smooth (naked eyes can be seen).Each LED lamp pearl all is mounted in independently on the radiator structure, and for the light of LED lamp pearl being gathered in the light beam in a small angle range, optical frames 523 also is independently to be installed on each LED lamp pearl.
The present invention can be as the occasion of various imaging devices, for example in projection lamp or Adjustable head lamp, the mode that a plurality of LED lamp pearls are combined and installed together can make their combined light get together as much as possible, and the suitable pattern effect of playing, and the brightness of these combined light is near the total brightness of actual LED lamp pearl brightness.The mode that a plurality of LED lamp pearls are combined and installed together can be so that their combined light be fit to play pattern effect.The combined light of a plurality of LED lamp pearls is that the light according to its ejaculation is fit to be easy to inject pattern segments, color chips, optical effect sheet, and can penetrate that diversified optical effect or image design.Different LED lamp pearls just have different parameters, adopt the LED lamp pearl of different quantity, and they have the method for the best of breed of a LED lamp pearl angle lens, LED lamp pearl installation site and LED lamp pearl setting angle.The performance of the best of LED lamp pearl combined light is exactly the best of breed that depends on these three parameters, and the optimum position of the pattern segments that injects, color chips, optical effect sheet also is to depend on them.
The driving method of LED lamp pearl composite set is in the present invention generally used analog-driven mode or pulse drive mode, can certainly be with some other suitable driving method.But, under most situation, because pulse drive mode can be the brightness of LED lamp pearl raising, so common employing is pulse drive mode.
LED lamp pearl among the present invention can be adopted the LED lamp pearl of same color, generally is with white, also can be with other colors of any LED lamp pearl.As in projection lamp or Adjustable head lamp, in the time of the LED lamp pearl used with a kind of color, can utilize color chips and optical effect sheet can change the color of light.Certainly use the color of two kinds or two or more LED lamp pearl, especially three of LED lamp pearl kinds of primary colors can create any color from spectrum.Same principle, this device also can be so that single LED lamp pearl the inside have multiple color and can emit.
Because the only cold light that the LED lamp pearl among the present invention sends, so pattern segments, color chips, optical effect sheet can be with the materials of anti-heat such as diaphragm or filter, so the expense of production pattern segments, color chips, optical effect sheet has also reduced widely, exactly because also production pattern segments, color chips, optical effect sheet no longer have been the things of a complicated difficulty, their complicacy and optical quality have also just improved thereupon.
Claims (7)
1, a kind of LED light projector image forming apparatus, comprise support, shell, and the imaging system that sets gradually, rotating disc and light source, described imaging system and rotating disc are installed on the described support, it is characterized in that: described light source is become by the LED lamp pearl group that a plurality of LED lamp pearls constitute, each LED lamp pearl is distributed on the optically focused concave surface, the luminous end of each LED lamp pearl is towards the focus of the inboard of concave surface and sensing concave surface, each LED lamp pearl is provided with radiator structure, described radiator structure is by a cylinder and be evenly distributed on the strip shape body that the cylinder outer peripheral face is divergent shape and constitute, between the two adjacent strip shape bodies of same circumferential cross-section, be provided with the gap, also be provided with the gap between the two adjacent strip shape bodies of the axial direction of cylinder, the axial line of radiator structure overlaps with the axial line of LED luminophor.
2, LED light projector image forming apparatus according to claim 1 is characterized in that: described concave surface is sphere or parabolic surface.
3, LED light projector image forming apparatus according to claim 1 is characterized in that: described cylinder is one to be provided with the right cylinder of central through hole.
4, according to the described LED light projector image forming apparatus of each claim of claim 1-3, it is characterized in that: the front portion of the luminous end of described each LED lamp pearl is provided with light-gathering optics lens.
5, LED light projector image forming apparatus according to claim 4 is characterized in that: the either side of the both sides of the focus of described concave surface or be provided with an optical lens at the focus place.
6, LED light projector image forming apparatus according to claim 5 is characterized in that: described rotating disc is rotatable, is driven by Electronic Control by a motor or electric mechanical accessory, can load pattern segments on the rotating disc.
7, LED light projector image forming apparatus according to claim 6 is characterized in that: the pattern segments that loads on the described rotating disc is diaphragm or the filter that forms by printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710194122A CN100576060C (en) | 2007-07-31 | 2007-11-29 | A kind of LED light projector image forming apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710029495.0 | 2007-07-31 | ||
| CN200710029495 | 2007-07-31 | ||
| CN200710194122A CN100576060C (en) | 2007-07-31 | 2007-11-29 | A kind of LED light projector image forming apparatus |
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| CN101183207A CN101183207A (en) | 2008-05-21 |
| CN100576060C true CN100576060C (en) | 2009-12-30 |
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| CN200710194122A Expired - Fee Related CN100576060C (en) | 2007-07-31 | 2007-11-29 | A kind of LED light projector image forming apparatus |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111885364B (en) * | 2020-06-24 | 2023-08-15 | 歌尔微电子有限公司 | Micro-projection device and electronic device |
| CN115883798A (en) * | 2021-09-29 | 2023-03-31 | 中强光电股份有限公司 | Focal length adjusting method |
| CN114879435A (en) * | 2022-05-17 | 2022-08-09 | 峰米(重庆)创新科技有限公司 | Projector with a light source |
| CN116148185B (en) * | 2023-04-04 | 2023-07-25 | 成都新西旺自动化科技有限公司 | Barrel-shaped light source and visual imaging method |
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