CN202330989U - Light-emitting device and protection system - Google Patents
Light-emitting device and protection system Download PDFInfo
- Publication number
- CN202330989U CN202330989U CN2011204644620U CN201120464462U CN202330989U CN 202330989 U CN202330989 U CN 202330989U CN 2011204644620 U CN2011204644620 U CN 2011204644620U CN 201120464462 U CN201120464462 U CN 201120464462U CN 202330989 U CN202330989 U CN 202330989U
- Authority
- CN
- China
- Prior art keywords
- light
- optical filter
- colour wheel
- green
- red
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The utility model, which is applicable to the technical field of illumination/display light sources, provides a light-emitting device, which comprises a red light source, a green light source, a blue light source and a light path-combining unit; the light path-combining unit combines the paths of light generated by the red light source, the green light source and the blue light source and then outputs the combined light; the red light source comprises a first excitation light source and a red light wavelength converter, the first excitation light source is used for generating first exciting light, and the red light wavelength converter can convert the first exciting light into the first excited light of red light; the green light source comprises a second excitation light source and a green light wavelength converter, the second excitation light source is used for generating second exciting light, and the green light wavelength converter can convert the second exciting light into second excited light at least including green light. The utility model uses the excitation light sources to excite the wavelength converters to obtain red light, while the blue light source, such as a blue light LED (light-emitting diode) or blue light laser, is adopted to obtain blue light, and compared with the conventional red light LED, the utility model can increase light intensity by multiple times.
Description
Technical field
The utility model belongs to illumination/display light source technical field, relates in particular to a kind of light-emitting device and optical projection system.
Background technology
Led light source is used for illumination and demonstration field, has advantages such as the life-span is long, in bright gay color.Illumination and demonstration all need be used white light, and available red-light LED, green light LED and blue-ray LED synthesize at this moment, with reference to Fig. 1; Wherein RLED, GLED, BLED represent red-light LED, green light LED, blue-ray LED respectively; M1, M2, M3 are optical filter, and L2 is a condenser lens, in this mode; The green-light radiation flux that needs is maximum, and ruddiness and blue light are less.But at present radiance and the photoelectric transformation efficiency of blue-ray LED are all higher, the radiance of red-light LED and electro-optical efficiency next, the radiance and the photoelectric transformation efficiency of green light LED are minimum on the contrary.And red-light LED is because the restriction of material, and its luminescence efficiency temperature influence again is bigger.In illumination that needs high brightness and demonstration field, such as projection application, the brightness of green glow and ruddiness is compared blue light and is seemed not enough.Show required brightness in order to reach; Green light LED and red-light LED are driven and are given more dutycycles by overcurrent; But overcurrent drives photoelectric transformation efficiency, life-span and the reliability that can reduce green glow, ruddiness with more dutycycle; Also face a problem simultaneously, even overcurrent drives and give green light LED and the more dutycycles of red-light LED, the technical merit of LED still can not satisfy the demand of main flow Projection Display now.
RGB laser also can be used for illumination and demonstration field.But the red laser diode receives materials limitations at present, and the single tube luminous power is less, and temperature influence is big, and price is also high; The green laser diode is still immature, costs an arm and a leg, and the green glow of frequency multiplication scheme is very responsive to temperature, needs the semiconductor cooler accurate temperature controlling, and price is high; It is reliable and stable to have blue light laser diode only, and temperature influence is little, and price is relatively low.So the main flow Projection Display is used the RGB laser solution, face the cost height, problems such as temperature control complicacy.
In a word, the synthesis type white light source cost of existing high brightness is higher, and green light LED wherein and red-light LED luminance shortage, and temperature control is complicated.
The utility model content
The utility model technical matters to be solved is to provide a kind of light-emitting device, is intended to realize with lower cost the ruddiness primary colours and the green glow primary colours of the high brightness that projection is required.
The utility model is achieved in that a kind of light-emitting device, comprising:
Be used to produce the red-light source of ruddiness;
Be used to produce the green-light source of green glow;
Be used to produce the blue light source of blue light;
The light that said red-light source, green-light source and blue light source are produced carries out the light path merge cells that light path merges output merging light;
Said red-light source comprises: be used to produce first excitation source of first exciting light, said first exciting light converted into the red light wavelength conversion equipment of first Stimulated Light that comprises ruddiness at least;
Said green-light source comprises: be used to produce second excitation source of second exciting light, said second exciting light converted into the green wavelength conversion equipment of second Stimulated Light that comprises green glow at least.
Further, said red light wavelength conversion equipment is one to be coated with first colour wheel that is used for said first exciting light is converted into the red light wavelength transition material of first Stimulated Light that comprises ruddiness at least.
Further; Said light-emitting device comprises that also one also comprises first driver element; Said first driver element is used to drive said first colour wheel and rotates, and acts on said red light wavelength transition material so that said first exciting light forms hot spot on said first colour wheel along predefined paths.
Further; Said first colour wheel is the transmission-type colour wheel; Said light-source system further comprises the beam split optical filter that is arranged between said first excitation source and said first colour wheel, and said beam split optical filter is used for said first exciting light of transmission to said first colour wheel and reflect at least from the said ruddiness of first Stimulated Light of the reverse output of said first colour wheel.
Further, said green wavelength conversion equipment is one to be coated with second colour wheel that is used for said second exciting light is converted into the green wavelength transition material of second Stimulated Light that comprises green glow at least.
Further, said light-emitting device comprises that also one also comprises second driver element, and said second driver element is used to drive said second colour wheel, acts on said green wavelength transition material so that second exciting light forms hot spot on said colour wheel along predefined paths.
Further; Said second colour wheel is the transmission-type colour wheel; Said light-source system further comprises the beam split optical filter that is arranged between said first excitation source and said second colour wheel, and said beam split optical filter is used for transmission second exciting light to said second colour wheel and reflect at least from the said green glow of second Stimulated Light of the reverse output of said second colour wheel.
Further, said light path merge cells comprises and laterally arranging or vertically disposed first optical filter and second optical filter;
Further, said ruddiness reflexes to the outbound course of said merging light through said first optical filter; Said green glow is transmitted through the outbound course of said merging light again through said first optical filter after said second optical filter reflection; Said blue light is transmitted through the outbound course of said merging light again through said first optical filter after the said second optical filter transmission.
Further, said red light wavelength conversion equipment is one to be coated with first colour wheel that is used for said first exciting light is converted into the red light wavelength transition material of first Stimulated Light that comprises ruddiness at least; Said first exciting light is transmitted through said first colour wheel through said first optical filter, and said ruddiness reflexes to said first optical filter through said first colour wheel;
Said green wavelength conversion equipment is one to be coated with second colour wheel that is used for said second exciting light is converted into the green wavelength transition material of second Stimulated Light that comprises green glow at least; Said second exciting light is transmitted through said second colour wheel through said second optical filter, and said green glow reflexes to said second optical filter through said second colour wheel.
Further, said ruddiness reflexes to the outbound course of said merging light through said first optical filter; Said green glow is transmitted through the outbound course of said merging light again through said first optical filter after the said second optical filter transmission; Said blue light is transmitted through the outbound course of said merging light again through said first optical filter after said second optical filter reflection.
Further, said red light wavelength conversion equipment is one to be coated with first colour wheel that is used for said first exciting light is converted into the red light wavelength transition material of first Stimulated Light that comprises ruddiness at least; Said first exciting light is transmitted through said first colour wheel through said first optical filter, and said ruddiness reflexes to said first optical filter through said first colour wheel;
Said green wavelength conversion equipment is one to be coated with second colour wheel that is used for said second exciting light is converted into the green wavelength transition material of second Stimulated Light that comprises green glow at least; Said second exciting light reflexes to said second colour wheel through said second optical filter, and said green glow reflexes to said second optical filter through said second colour wheel.
Further, this light-emitting device comprises that also fly's-eye lens is right, is used for the light beam that the light path merge cells merges is spared light; Said fly's-eye lens is to comprising two fly's-eye lenses that are oppositely arranged, and each fly's-eye lens comprises the plural lenses unit that is closely linked together, and the longitudinal cross-section of each lens unit is regular hexagon.
The utility model also provides a kind of optical projection system, and it comprises aforesaid light-emitting device.
The utility model compared with prior art; Excitation light source excites Wavelength converter through using one group or two groups high brightness obtains green glow and ruddiness; Blue light then adopts blue light source to obtain such as blue-ray LED or blue laser; Traditional relatively red, green light LED, the light-source brightness that the utility model improves can improve several times.Wherein, Above-mentioned Wavelength converter can adopt the colour wheel that scribbles yellow fluorescent powder, red light fluorescent powder/green light fluorescent powder to realize; The required color in the color of the light that obtains after green glow, red light fluorescent powder are excited and demonstration field is very approaching, thereby has solved LED green glow, problem that ruddiness is not enough, and does not change color with the variation of laser drive current; Ruddiness or green glow conversion efficiency, life-span, reliability have been improved to a certain extent; The defective that does not also have simultaneously red laser diode and green laser diode temperature control complicacy, and required excitation source and Wavelength converter price are relatively low, and cost consumption is limited.
Description of drawings
Fig. 1 is the optical schematic diagram of existing RGB LED projection light source;
Fig. 2 is the optical schematic diagram of the light-emitting device that provides of the utility model;
Fig. 3 is the red light fluorescent powder that provides of the utility model and the spectrum and the predominant wavelength synoptic diagram of green light fluorescent powder;
Fig. 4 is the structural representation of the transmission-type colour wheel that provides of the utility model;
Fig. 5 is the optical structure chart that adopts first embodiment of the utility model light-emitting device;
Fig. 6 is the spectrogram of the gold-tinted that inspires that provides of the utility model;
Fig. 7, Fig. 8 are respectively the optical filtering curve maps of two optical filters in the optical texture shown in Figure 5;
Fig. 9 is the optical structure chart that adopts second embodiment of the utility model light-emitting device;
Figure 10 is the spectrogram of an optical filter in the optical structure chart shown in Figure 9;
Figure 11 is the optical structure chart that adopts the 3rd embodiment of the utility model light-emitting device;
Figure 12, Figure 13 are respectively the spectrograms of two optical filters in the optical structure chart shown in Figure 9;
Figure 14 is the optical structure chart that adopts the 4th embodiment of the utility model light-emitting device;
Figure 15 is the optical structure chart that adopts the 5th embodiment of the utility model light-emitting device;
Figure 16 A and Figure 16 B are respectively the structural drawing of the optical filter of the transmission-type that provides of the utility model and reflective colour wheel;
Spectrogram when Figure 17 is interference filter for optical filter shown in Figure 16 A;
Figure 18 A, Figure 18 B, Figure 18 C are the optical schematic diagrams of the blue light source in the light source that provides of the utility model;
Figure 19 is the index path of a kind of blue laser eliminating coherence light source of providing of the utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model uses ultraviolet, near ultraviolet or the blue light source equal excitation light source activation Wavelength converter of two groups of high brightness to obtain green glow and ruddiness; Blue light then adopts blue light source to obtain such as blue-ray LED or blue laser, and the required primary colours such as high brightness ruddiness, green glow and blue light in field such as Projection Display can be provided.
Fig. 2 shows the optical principle structure of the light-emitting device that the utility model provides, and for the ease of describing, only shows the part relevant with the utility model.
With reference to Fig. 2; This light-emitting device comprises at least: be used to produce the red-light source 1 of ruddiness, the green-light source 2 that is used to produce green glow, the blue light source 3 that is used to produce blue light, light path merge cells 4, light path merge cells 4 is used for that the light that red-light source 1, green-light source 2 and blue light source 3 produce is carried out light path and merges output merging light then.Further, light-emitting device also can comprise condenser lens 5 and even optical assembly 6, and condenser lens 5 is used for the merging light of light path merge cells 4 outputs is focused on, and even optical assembly 6 is positioned at the focal position of the bright dipping side of condenser lens 5, is combined light and spares optical processing.Even optical assembly 6 specifically can adopt optical tunnel or fly's-eye lens to realizing.Preferably, fly's-eye lens is to comprising two fly's-eye lenses that are oppositely arranged, and each fly's-eye lens comprises the plural lenses unit that is closely linked together, and the longitudinal cross-section of each lens unit is regular hexagon, to improve the right light extraction efficiency of fly's-eye lens.
In the utility model, red-light source 1 comprises first excitation source and the red light wavelength conversion equipment that is used to produce first exciting light, and the red light wavelength conversion equipment converts first exciting light that first excitation source produces into comprise ruddiness at least first Stimulated Light; Correspondingly, green-light source 2 comprises second excitation source and the green wavelength conversion equipment that is used to produce second exciting light, and the green wavelength conversion equipment converts second exciting light of the generation of second excitation source into comprise green glow at least second Stimulated Light.
In the present embodiment; Above-mentioned red light wavelength conversion equipment is one to be coated with first colour wheel of red light wavelength transition material; It is positioned on the downstream light path of first excitation source, and this red light wavelength transition material is used for converting first exciting light into comprise ruddiness at least first Stimulated Light.In like manner, the green wavelength conversion equipment is one to be coated with second colour wheel of green wavelength transition material, its be positioned on the downstream light path of second excitation source, this green wavelength transition material is used for converting second exciting light into comprise green glow at least second Stimulated Light.The spectrum of first Stimulated Light that produces after above-mentioned red light wavelength transition material is stimulated covers the red light wavelength zone; To guarantee the comprising ruddiness composition in first Stimulated Light; The spectrum of second Stimulated Light that produces after above-mentioned green wavelength transition material is stimulated covers the green wavelength zone, to guarantee the comprising green glow composition in second Stimulated Light.For example, the fluorescent powder that is coated with on first colour wheel is monochromatic red light fluorescent powder, and the spectral range of its Stimulated Light covers the red light wavelength zone, and the red light wavelength zone definitions is 580～630nm, and the predominant wavelength of first Stimulated Light is between 580nm～650nm.The fluorescent powder that is coated with on second colour wheel is monochromatic green light fluorescent powder, and its spectral range covers the green wavelength zone, and the latter is defined as 520nm～560nm, and the predominant wavelength of second Stimulated Light is between 530nm～570nm.The spectrum of two kinds of fluorescent powder is as shown in Figure 3.
The above-mentioned ruddiness of generation and the green glow of exciting also can use other fluorescent powder to realize; As long as the spectral range of the Stimulated Light of this fluorescent powder covers red light wavelength zone or green wavelength zone; For example on first colour wheel, be coated with the wide range fluorescent powder that Stimulated Light spectrum covers the red light wavelength zone, on second colour wheel, be coated with the wide range fluorescent powder that Stimulated Light spectrum covers the green wavelength zone.Gold-tinted fluorescent powder can cover the red light wavelength zone; Therefore can filter out the light beyond the ruddiness in the Yellow luminous spectrum and only ruddiness is extracted through the use of optical filter; That is to say, can adopt first optical filter that can the ruddiness composition in the exciting light be extracted to realize; Simultaneously gold-tinted fluorescent powder also covers the green wavelength zone, can adopt second optical filter that can the green glow composition in the exciting light be extracted to realize, so that the light beyond the green glow is filtered out and only extracts green glow and come out.Therefore, gold-tinted fluorescent powder can be used for the generation of green glow and ruddiness simultaneously, because gold-tinted fluorescent powder has higher light conversion efficiency, therefore utilizes gold-tinted fluorescent powder and optical filter to obtain green glow and ruddiness has the light conversion efficiency advantage of higher.It should be noted that; The gold-tinted fluorescent powder that is used to generate ruddiness and green glow is not necessarily with a kind of yellow fluorescent powder (also possibly be with a kind of certainly); The gold-tinted fluorescent powder that for example generates ruddiness can more slightly the long wavelength (red partially), and the gold-tinted fluorescent powder that generates green glow can many slightly the short wavelength (green partially).
Red, green light LED that above-mentioned red light wavelength transition material or green wavelength material are traditional relatively, the light-source brightness that the utility model provides can improve several times.Above-mentioned first excitation source and second excitation source can be blue laser pipe, black light laser tube or ultraviolet laser pipe; Certainly; First excitation source and second excitation source also can adopt non-laser light source realizations such as other blue-ray LEDs; But the hot spot of considering laser is littler, optical power density is higher, and the luminance brightness that obtains behind the excitated fluorescent powder is higher, and the utility model preferentially selects for use LASER Light Source to realize.
Further; For the exciting light that prevents the first/the second excitation source causes local heat radiation bad owing to fixing a certain position of shining the first/the second colour wheel; And influence stimulation effect; Therefore the utility model also comprises first driver element and second driver element; This first drive unit and second drive unit are respectively applied for and drive ruddiness, green wavelength conversion equipment, so that the hot spot that first Stimulated Light and second Stimulated Light form on ruddiness, green wavelength conversion equipment respectively acts on ruddiness, green wavelength transition material along predefined paths respectively, thereby avoid occurring the too high phenomenon of local temperature.
Above-mentioned red light wavelength conversion equipment and green wavelength conversion equipment all can be two kinds of reflective and transmission-types; With the colour wheel is example; Reflective colour wheel is attached on the wheel with material for transformation of wave length; The surface of colour wheel is high reflecting surface, for example catoptron or silver-plated metallic reflection plate, the direction of propagation of the Stimulated Light that excitation light irradiation inspires on material for transformation of wave length and excitation light irradiation in the opposite direction.On the colour wheel of the material for transformation of wave length of transmission-type colour wheel attached to the transparent material substrate, the light of excitation source is radiated on the material for transformation of wave length by the one side of colour wheel, and the direction of propagation of the Stimulated Light that inspires is identical with the exciting light direction of propagation.On the transmission-type colour wheel, because the light emission direction of Stimulated Light is isotropic, so there is partially-excited light to propagate along the direction of propagation of exciting light, other partially-excited light are propagated along the opposite direction of the direction of propagation of exciting light simultaneously.A preferred scheme is, at the first/the second excitation source and scribble between transmission-type the first/the second colour wheel of material for transformation of wave length, a beam split optical filter is set, and as shown in Figure 4, beam split optical filter 6 transmission exciting lights reflect the Stimulated Light a that colour wheel 7 produces simultaneously.Like this; Red/green in the Stimulated Light of propagating along the opposite direction of the direction of propagation of exciting light can incide on the beam split optical filter 6 and be reflected and be able to outgoing from the direction of propagation along exciting light is Stimulated Light b; If colour wheel 7 is the transmission colour wheel, the Stimulated Light c of its generation directly transmission goes out.Most energy of final Stimulated Light all are able to emit and be collected along the direction of propagation of exciting light.This beam split optical filter 6 can be used as the part of colour wheel and rotates together, also can be independent of transfixion outside the colour wheel.
Should be appreciated that above-mentioned Wavelength converter not only can realize based on rotating colour wheel, also can be based on the good Wavelength converter realization of the dull and stereotyped and static heat dispersion that scribbles material for transformation of wave length of repeated moving fast.To the situation of specifically choosing of above-mentioned first colour wheel and second colour wheel, reflective, transmission-type, anti-hybrid-type smooth collection mode can be arranged, details are as follows.
Embodiment one: reflective
With reference to Fig. 5; The red-light source of this light source partly comprises the first excitation source A1, the first optical filter M1, the first colour wheel A2, and wherein, the first colour wheel A2 is rotatable; Fluorescent powder on the first colour wheel A2 is excited by the first excitation source A1 and comprises the ruddiness composition in the light that produces; Finally by first optical filter M1 output, in the present embodiment, this first optical filter M1 is to reflection to red light and to green glow and blue light transmission for this ruddiness composition.
Further; Consider that it is lambert's light that the first excitation source A1 excites the light that sends behind the first colour wheel A2; For guaranteeing that the light that sends after fluorescent powder on the first colour wheel A2 is excited is utilized and can be by first optical filter M1 reflection output; Can also between the first colour wheel A2 and the first optical filter M1, be provided with the first collecting lens L1; To excite the Stimulated Light of sending behind the first colour wheel A2 to collimate to the first excitation source A1, the first optical filter M1 is between the first collecting lens L1 and the first excitation source A1.Light path principle is: first exciting light that the first excitation source A1 produces is transmitted through the first colour wheel A2 through the said first optical filter M1 and converts first Stimulated Light that comprises ruddiness at least into, and said ruddiness is reflexed to the outbound course of said merging light again by the said first optical filter M1 after first colour wheel A2 reflection.
It is the optical principle that example is described red-light source among Fig. 2 in detail that hereinafter adopts gold-tinted fluorescent powder, the first excitation source A1 to adopt the blue laser pipe with fluorescent powder.The first optical filter M1 is for passing through blue, green anti-red optical filter; The blue light that blue laser pipe A1 sends is beaten on the first colour wheel A2 that scribbles yellow fluorescent powder of high speed rotating after seeing through the first optical filter M1 and the first collecting lens L1, and the fluorescent powder on the first colour wheel A2 is excited and carries out the gold-tinted of the spectrum broad that wavelength Conversion inspires.As shown in Figure 6; The gold-tinted that is gone out by laser excitation is lambert's light; This gold-tinted is incident upon on the first optical filter M1 after collecting by first colour wheel A2 reflection and by the first collecting lens L1; The optical filtering curve of the first optical filter M1 is as shown in Figure 7, and wavelength can be reflected greater than the light of 590nm, and wavelength can penetrate less than the light of 590nm.Because the existence of the first optical filter M1; Has only wavelength greater than the output that just can be reflected of the light of 590nm; Have only red light portion finally can reflect output in the gold-tinted that promptly is excited out, thereby realized that blue laser excites yellow fluorescent powder, after optical system is filtered, obtain the pure ruddiness of color.
In like manner, above-mentioned principle also can be applicable to the green glow part.Particularly, the green-light source of this light source partly comprises the second excitation source B1, the second optical filter M2, the reflection-type second colour wheel B2, and the second optical filter M2 is to the green glow reflection and to ruddiness and blue light transmission, and its optical filtering curve is as shown in Figure 8.The second colour wheel B2 is rotatable, and the second excitation source B1 is concrete identical with the above-mentioned first excitation source A1, fluorescent powder is also as indicated above.Light path principle is: the exciting light that the second excitation source B1 produces is transmitted through the second colour wheel B2 through the said second optical filter M2 and converts second Stimulated Light that comprises green glow at least into; This green glow reflexes to said merging light output direction by the said second optical filter M2 again after second colour wheel B2 reflection, or this green glow is transmitted through said merging light output direction through the said first optical filter M1 through second optical filter M2 reflection earlier again.Likewise, can also between the second colour wheel B2 and said second optical filter, be provided with the second collecting lens L2, said second optical filter is between said second collecting lens L2 and the said second excitation source B1.
In the present embodiment; The first optical filter M1 and the second optical filter M2 that are parallel to each other belong to light path merge cells 3; And all be provided with ringwise, drive unit is the wheelwork with a rotation axis, and then the driving colour wheel rotates around it the axle rotation; So that the hot spot that exciting light produces on colour wheel acts on material for transformation of wave length along circular path, the temperature of avoiding the exciting light long duration of action to cause in the same position of material for transformation of wave length thus raises.In other embodiments, colour wheel also can be designed to band shape or tubular, and drive unit also can adopt linear translation device or other appropriate driving device, so that the hot spot that exciting light produces on colour wheel acts on material for transformation of wave length along predefined paths.
The blue light that blue light source C produces is transmitted through the outbound course of said merging light successively by M1 in the said second optical filter M2 and first optical filter.
Embodiment two: reflective
As shown in Figure 9, with respect to embodiment one, the improvements of present embodiment are two colour wheel is exchanged; Among this embodiment with M1 called after second optical filter; With M2 called after first optical filter, with A1 called after second excitation source, with B1 called after first excitation source; With A2 called after first colour wheel, with B2 called after second colour wheel.The second optical filter M1 is for passing through blue, red anti-green optical filter; The first optical filter M2 is for passing through blue anti-red green optical filter, and still with yellow wheel for example, the light that the second excitation source A1 sends excites gold-tinted fluorescent powder after passing M1, L1 at present; Obtain the gold-tinted lambert light of spectrum broad; Spectrum is as shown in Figure 3, and gold-tinted is beaten on the second optical filter M1 after by the L1 collimation, and the optical filtering curve of the second optical filter M1 is shown in figure 10; Be lower than 490nm and can see through optical filter, will reflect at the second optical filter M1 place less than the light of 590nm greater than 490nm with the light that is higher than 590nm.Therefore the second excitation source A1 excites the gold-tinted that obtains only to be reflexed to condenser lens L3 place less than the part of 590nm by M1 greater than 490nm, is spared optical assembly D collection.The light of 490nm～590nm looks it is green, has therefore realized that blue-light excited yellow fluorescent powder obtains gold-tinted, after optical filter obtains green glow after repairing look.
The optical filter of ruddiness is identical with Fig. 7's, and blue light is identical with previous examples, does not do at this and gives unnecessary details.
The green glow light path principle is: second exciting light that the second excitation source A1 produces is transmitted through the second colour wheel B2 through the second optical filter M1 and converts second Stimulated Light that comprises green glow at least into, and this green glow reflexes to the outbound course that merges light by the second optical filter M1 after being reflected by the second colour wheel B2 again;
The ruddiness light path principle is: first exciting light that the first excitation source B1 produces is transmitted through the first colour wheel A2 through the first optical filter M2 and converts first Stimulated Light that comprises ruddiness at least into, and this ruddiness is transmitted through said merging light output direction through the said second optical filter M1 through said first optical filter M2 reflection earlier again by first colour wheel A2 reflection back;
The blue light paths principle is: the blue light that blue light source C produces is transmitted through the outbound course of said merging light successively by the said first optical filter M2 and the second optical filter M1.
Embodiment three: reflective
The blue anti-red green optical filter that passes through among Fig. 5 is changed to red, the green thoroughly optical filter of anti-indigo plant, can reach the effect identical through the position that changes colour wheel equally with Fig. 5 system, shown in figure 11; The first optical filter M1 is for passing through blue, green and anti-red optical filter; The second optical filter M2 is anti-blue red, green thoroughly optical filter, and still with yellow wheel for example, the light that the first excitation source A1 sends excites gold-tinted fluorescent powder after passing M1, L1 at present; Obtain the gold-tinted lambert light of spectrum broad; Spectrum is as shown in Figure 6, and gold-tinted is beaten on M1 after by the L1 collimation, and the optical filtering curve of the first optical filter M1 is shown in figure 12; Be lower than 590nm light and can see through optical filter, will reflect at the M1 place greater than the light of 590nm.Therefore the first excitation source A1 excites the gold-tinted that obtains only to be reflexed to condenser lens L3 place greater than the part of 590nm by M1, is spared optical assembly D and collects, thereby realize that blue-light excited yellow fluorescent powder obtains gold-tinted, after optical filter obtains ruddiness after repairing look.
The optical filtering curve of the second optical filter M2 is shown in figure 13, promptly to the light reflection less than 490nm, to the transmittance greater than 490nm.The second excitation source B1 sends blue light and beats on M2; The light that reflection takes place at the second optical filter M2 place is beaten on the gold-tinted colour wheel through collecting lens L2, obtains the gold-tinted lambert light of spectrum broad, and spectrum is as shown in Figure 3; Gold-tinted is beaten on M2 after by the L2 collimation; The light that wavelength is lower than 490nm at the M2 place is reflected, and wavelength is beaten on M1 through behind the M2 greater than the light of 490nm, and the M1 wavelength-filtered is greater than the light of 590nm; Therefore the second excitation source B 1 excites the gold-tinted that obtains only to be reflexed to condenser lens L3 place less than the part of 590nm by M2 greater than 490nm; Collected by even optical assembly D, thereby realize that blue-light excited yellow fluorescent powder obtains gold-tinted, after optical filter obtains green glow after repairing look.
The light that blue light source C sends is reflected at the second optical filter M2 place, after first optical filter M1 place's transmission, beats at condenser lens L3 place again, and final the entering spared optical assembly D.
The green glow light path principle is: second exciting light that the second excitation source B1 produces reflexes to the said second colour wheel B2 through the said second optical filter M2 and converts second Stimulated Light that comprises green glow at least into, and said green glow is transmitted through said merging light output direction through said second optical filter M2 and the said first optical filter M1 more successively after second colour wheel B2 reflection;
The ruddiness light path principle is: first exciting light that the first excitation source A1 produces is transmitted through the said first colour wheel A2 through the said first optical filter M1 and converts first Stimulated Light that comprises ruddiness at least into, and this ruddiness reflexes to said merging light output direction through the said first optical filter M1 again after first colour wheel A2 reflection;
The blue light paths principle is: the blue light that blue light source C produces is transmitted through the outbound course of said merging light successively by M1 in the said second optical filter M2 reflection and first optical filter.
Embodiment four: transmission-type
The first colour wheel A2 can also be a transmission-type colour wheel among Fig. 5; Shown in figure 14; Be provided with the first collecting lens L1 between the first colour wheel A2 and the said first optical filter M1, require the first colour wheel A2 this moment between the first collecting lens L1 and the first excitation source A1, and change former laser position; All the other are identical with Fig. 5 part, specifically repeat no more.
Similar with the first colour wheel A2; The second colour wheel B2 also can be a transmission-type colour wheel; Be provided with the second collecting lens L2 between the second colour wheel B2 and the said second optical filter M2, require the second colour wheel B2 between the second collecting lens L2 and the second excitation source B1, laser position adjusts accordingly.
The ruddiness light path principle is: first exciting light that the first excitation source A1 produces changes first Stimulated Light that comprises ruddiness at least into directly into being incident upon the first colour wheel A2, and said ruddiness reflexes to said merging light output direction by the said first optical filter M1 again after the first colour wheel A2 transmission;
The green glow light path principle is: second exciting light that the said second excitation source B1 produces converts second Stimulated Light that comprises green glow at least into directly into being incident upon the said second colour wheel B2, and said green glow is transmitted through said merging light output direction through the said first optical filter M1 by said second optical filter M2 reflection earlier again after the second colour wheel B2 transmission;
The blue light paths principle is: the blue light that said blue light source C produces is transmitted through the outbound course that merges light by the second optical filter M2 and the first optical filter M1 successively.
Embodiment five: hybrid
Specifically can be divided into two kinds of part transmission of red light portion reflect green light and the transmissions of green glow partial reflection red light portion again; For the former; The first colour wheel A2 is a reflection-type colour wheel; Be provided with the first collecting lens L1 between the first colour wheel A2 and the first optical filter M1, the first optical filter M1 is between the first collecting lens L1 and the first excitation source A1; The second colour wheel B2 is a transmission-type colour wheel, is provided with the second collecting lens L2 between the second colour wheel B2 and the second optical filter M2; The second colour wheel B2 is between the second collecting lens L2 and the second excitation source B1.For the latter, the first colour wheel A2 is a transmission-type colour wheel, is provided with the first collecting lens L1 between the first colour wheel A2 and the first optical filter M1; The first colour wheel A2 is between the first collecting lens L1 and the first excitation source A1; The second colour wheel B2 is a reflection-type colour wheel, is provided with the second collecting lens L2 between the second colour wheel B2 and the second optical filter M2, and the second optical filter M2 is between the second collecting lens L2 and the second excitation source B1.
The ruddiness light path principle is: the exciting light that the first excitation source A1 produces is transmitted through the first colour wheel A2 through the said first optical filter M1 and converts first Stimulated Light that comprises ruddiness at least into, and said ruddiness reflexes to said merging light output direction by the said first optical filter M1 again after first colour wheel A2 reflection;
The green glow light path principle is: the exciting light that the said second excitation source A2 produces converts second Stimulated Light that comprises green glow at least into directly into being incident upon the second colour wheel B2, and said green glow is transmitted through said merging light output direction by the first optical filter M1 and the second optical filter M2 earlier successively after the second colour wheel B2 transmission;
The blue light paths principle is: the blue light that said blue light source C produces is transmitted through the outbound course of said merging light earlier again through the first optical filter M1 by said second optical filter M2 reflection.
Existing is example with embodiment two, and wherein one group of reflection wheel changes to the transmission wheel, and is shown in figure 15: the former reflection wheel of green glow that provides changes to the transmission wheel; Second excitation source B1 irradiation scribbles on the transmission wheel B2 of yellow fluorescent powder; Excite the gold-tinted lambert who obtains solely to be collected lens L2 and collect, the same with embodiment two, the light that wavelength is lower than 490nm at the M2 place is reflected; Wavelength is beaten on M1 through behind the M2 greater than the light of 490nm; Therefore M1 cuts down the light of wavelength greater than 590nm, and the second excitation source A1 excites the gold-tinted that obtains only to be reflexed to condenser lens L3 place less than the part of 590nm by M1 greater than 490nm, spare the excellent collection of optical assembly D; Thereby realize that blue-light excited yellow fluorescent powder obtains gold-tinted, after optical filter obtains green glow after repairing look.
Comprehensive above-mentioned five embodiment can find out that the light path merge cells in the optical system of the present invention comprises multiple combination, but have identical principle in this multiple combination.That is, three kinds of monochromatic light RGB have the different spectrum scope, and optical filter M1 utilizes the different of this spectral range that these three kinds of monochromatic light are carried out transmission and reflection with M2, and finally merge into the output of one road light to these three kinds of light.As for to any transmittance, to any light reflection, with and concrete optics framework, can independent assortment, the first optical filter M1 and the second optical filter M2 can laterally arrange, described in above-mentioned five embodiment; Both also can vertically be provided with; It specifically can be the vertical setting of cross type; It also can be the vertical setting of V-type; For example the first optical filter M1 among Figure 14 is remained unchanged, and the second optical filter M2 is changed to and the V-shaped vertical setting of the first optical filter M1 (this V-type opening can towards the right among the figure), require second Stimulated Light that the second colour wheel B2 sends the right incident second optical filter M2 this moment from the second optical filter M2.
The first optical filter M1 and the second optical filter M2 in the effect of playing combination different colours light, also play filtration and modification to the incident light color simultaneously.For example among the embodiment two of front, used yellow fluorescent powder in the green glow optical channel, the gold-tinted that sends is able to outgoing through being filtered into green glow after the reflection of M1; Also used yellow fluorescent powder in the ruddiness optical channel, the reflection of the gold-tinted that sends process M2 and the transmission of M1 enough are filtered into ruddiness and are able to outgoing.Said here optical filter is to the filtration of incident light; Refer to optical filter and on the assigned direction energy of the part wavelength coverage of incident light is being carried out transmission or reflection makes the color of its light on this assigned direction reach needed requirement, this part is collected by collection optics (in embodiment two, showing as condenser lens L3 and optical tunnel) at the light on the assigned direction the most at last.And (normally vertical with assigned direction direction) reflects or transmission the energy of incident light remainder wavelength coverage on another direction, and this portion of energy can not be collected by collection optics.For example in embodiment 2, M1 uses reflection way to filter green glow, and filters ruddiness with the mode of transmission, and M2 uses reflection way to filter ruddiness.
To the foregoing description two, if red channels is used red fluorescence powder, the green light passage uses green emitting phosphor (shown in spectrum such as the embodiment one), and then the filtering function of the light of beam split optical filter M1 and M2 is weakened, and is mainly the function of combination different colours light.
Listed three kinds of different fluorescent powder in this table and changed (wherein, x indicates horizontal ordinate, and y representes ordinate) through the chromaticity coordinates behind the color filtering of beam split optical filter.It is thus clear that; The beam split optical filter is in the effect of accomplishing different colours light; Yellow original luminous filtering effect in ruddiness and the green channel is obvious, and luminous then filtration weakens for the green emitting phosphor that in green channel, uses, for the situation of using red fluorescence powder in the ruddiness passage; The beam split optical filter is then very faint for the filtration of former spectrum, and is also very little to the change of chromaticity coordinates.
In fact, also can use another optical filter to come to accomplish separately filtering function, only accomplish the function of combination different colours light then with beam split optical filter M1 and M2 color of light.
It among Figure 16 A and the 16B example that is directed against the optical filter of transmission-type colour wheel and reflective colour wheel respectively.Figure 16 A is the transmission-type colour wheel, after incident light excites the Stimulated Light transmission colour wheel that the material for transformation of wave length on the colour wheel obtains, and scioptics collimation and outgoing again after filtering through optical filter B21.The optical filter B21 here can select interference filter and absorption-type optical filter for use.Interference filter throws the light of part wavelength coverage, and all the other wavelength coverages light is partly reflected.In Figure 16 A, if optical filter is interference filter, then green spectrum scope 490～580nm is carried out transmission, the light of all the other spectral ranges is reflected, shown in figure 17.In fact concrete transmission range can be confirmed according to the color demand of concrete light.The transmittance that the absorption-type optical filter is same for the part spectral range, and absorb for the light of all the other spectral ranges.For using optical filter in the reflective colour wheel, this optical filter is answered the energy of transmit green spectral range equally among Figure 16 B, but with 16A in different be that its needs to see through simultaneously the light of excitation light spectral limit.
In sum, the modification of glow color can be carried out through optical filter M1 and M2, also can carry out through an optical filter of other increase; As a same reason; Also can the two be combined jointly the fluorescence Stimulated Light is filtered and modified; Be that fluorescence radiation filters once through the optical filter that increases earlier, filter for the second time through beam split optical filter M1 and M2 again, and finally reach satisfactory color.
Foregoing has mainly been described red-light source and green-light source, and the selection of the blue light source C in the utility model is more extensive, can use traditional blue-ray LED light source, and shown in Figure 18 A, wherein 611 represent blue light-emitting diodes, 612 expression collecting lenses; After also can using the blue laser eliminating coherence blue light is provided directly, shown in Figure 18 B, wherein 621 represent the blue laser pipes, 622 expression eliminating coherence devices, 623 expression collecting lenses; Or after filtering, obtain the mode of blue light with traditional white light, and shown in Figure 18 C, 631 expression white light sources wherein, 632 expression collecting lenses, the optical filter of 633 an expression transmit blue.
The blue laser eliminating coherence briefly introduces as follows: because laser is strong coherent light, its each pixel of images displayed on screen can occur because the relevant speckle that produces can't normally show image.Therefore in laser display, must use eliminating coherence device or method to eliminate relevant speckle, the mode of eliminating coherence is generally the scattering eliminating coherence at present.
Eliminating coherence mode relatively more commonly used is briefly introduced, shown in figure 19, laser is beaten on astigmatic colour wheel C1 at present, the particle that astigmatic colour wheel C1 surface imperfection is arranged, and particle can carry out scattering to laser, has therefore eliminated the spatial coherence of original laser.When astigmatic colour wheel C1 is turned over, can eliminate temporal coherence.Thereby temporal coherence and spatial coherence have been eliminated simultaneously.Thereby space eliminating coherence and time eliminating coherence have been reached.
Should be appreciated that other eliminating coherence modes also can use, do not limit at this.
The design and fabrication of each optical filter is very ripe known technology in the above-mentioned index path; Researchist in this area can design the optical filter of different size; Also can reach similar effects, anti-red such as the M1 among Fig. 2 is designed to, pass through blue, green; And be designed to M2 anti-green, blue, red thoroughly.Just has only green glow through M2 reflection like this.In like manner; If colour wheel A2 and colour wheel B2 are the same colour wheel that is provided with yellow fluorescence light powder, can be replaced by red, blue anti-green optical filter to the M1 among Fig. 2, M2 is replaced by blue, green anti-red diaphragm; Other parts are constant, can reach the effect of the same optical system equally.If colour wheel A2 is different fluorescence colour wheels with colour wheel B2, can be with two colour wheel switches, M1 and M2 also adjust accordingly, and reach similar effects.All conversion like that do not influence covering scope of the present invention.
Above-mentioned light-emitting device is widely used; For example can be used for producing white light, also can be used to produce coloured light, also can produce sequential coloured light through a control device is set; This control device is used to control said red-light source, green-light source and blue light source alternation, produces the coloured light of sequential.Certainly can be set to possess simultaneously above-mentioned two kinds of effects by above-mentioned light source during practical implementation; For example being used for the system of single spatial light modulator, such as the projector of individual digit optical processor (DLP), three road light sources can replace opening and closing; Produce the coloured light of sequential; In the time of the needs white light, three road light sources can be opened simultaneously, to increase the brightness output of projector.Certain above-mentioned light source can be used for the system of a plurality of spatial light modulators equally, such as the system of 3DLP and 3LCD.
The utility model compared with prior art; Ultraviolet or blue light source equal excitation light source activation Wavelength converter through using one group or two groups high brightness obtain green glow and ruddiness; Blue light then adopts blue light source to obtain such as blue-ray LED or blue laser; The light-source brightness that traditional relatively red, green light LED, the utility model improve can improve several times, and the required color in the color of the light that obtains after being excited of green glow, red light fluorescent powder and demonstration field is very approaching; Thereby LED green glow, problem that ruddiness is not enough have been solved; And the variation with laser drive current does not change color, has improved ruddiness or green glow conversion efficiency, life-span, reliability to a certain extent, does not have the complicated defective of red laser diode and the temperature control of green laser diode simultaneously yet; And required excitation source and Wavelength converter price are relatively low, and cost consumption is limited.The yellow fluorescent powder that uses simultaneously is stable fluorescence powder at present, and only can reduce cost significantly with yellow fluorescent powder.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (14)
1. a light-emitting device is characterized in that, comprising:
Be used to produce the red-light source of ruddiness;
Be used to produce the green-light source of green glow;
Be used to produce the blue light source of blue light;
The light that said red-light source, green-light source and blue light source are produced carries out the light path merge cells that light path merges output merging light;
Said red-light source comprises: be used to produce first excitation source of first exciting light, said first exciting light converted into the red light wavelength conversion equipment of first Stimulated Light that comprises ruddiness at least;
Said green-light source comprises: be used to produce second excitation source of second exciting light, said second exciting light converted into the green wavelength conversion equipment of second Stimulated Light that comprises green glow at least.
2. light-emitting device as claimed in claim 1 is characterized in that, said red light wavelength conversion equipment is one to be coated with first colour wheel that is used for said first exciting light is converted into the red light wavelength transition material of first Stimulated Light that comprises ruddiness at least.
3. light-emitting device as claimed in claim 2; It is characterized in that; Said light-emitting device also comprises first driver element; Said first driver element is used to drive said first colour wheel and rotates, and acts on said red light wavelength transition material so that first exciting light forms hot spot on said first colour wheel along predefined paths.
4. light-emitting device as claimed in claim 2; It is characterized in that; Said first colour wheel is the transmission-type colour wheel; Said light-source system further comprises the beam split optical filter that is arranged between said first excitation source and said first colour wheel, and said beam split optical filter is used for transmission first exciting light to said first colour wheel and reflect at least from the said ruddiness of first Stimulated Light of the reverse output of said first colour wheel.
5. light-emitting device as claimed in claim 1 is characterized in that, said green wavelength conversion equipment is one to be coated with second colour wheel that is used for said second exciting light is converted into the green wavelength transition material of second Stimulated Light that comprises green glow at least.
6. light-emitting device as claimed in claim 5; It is characterized in that; Said light-emitting device also comprises second driver element, and said second driver element is used to drive said second colour wheel, acts on said green wavelength transition material so that second exciting light forms hot spot on said colour wheel along predefined paths.
7. light-emitting device as claimed in claim 5; It is characterized in that; Said second colour wheel is the transmission-type colour wheel; Said light-source system further comprises the beam split optical filter that is arranged between said second excitation source and said second colour wheel, and said beam split optical filter is used for transmission second exciting light to said second colour wheel and reflect at least from the said green glow of second Stimulated Light of the reverse output of said second colour wheel.
8. light-emitting device as claimed in claim 1 is characterized in that, said light path merge cells comprises and laterally arranging or vertically disposed first optical filter and second optical filter.
9. light-emitting device as claimed in claim 8 is characterized in that: said ruddiness reflexes to the outbound course of said merging light through said first optical filter; Said green glow is transmitted through the outbound course of said merging light again through said first optical filter after said second optical filter reflection; Said blue light is transmitted through the outbound course of said merging light again through said first optical filter after the said second optical filter transmission.
10. light-emitting device as claimed in claim 9 is characterized in that: said red light wavelength conversion equipment is one to be coated with first colour wheel that is used for said first exciting light is converted into the red light wavelength transition material of first Stimulated Light that comprises ruddiness at least; Said first exciting light is transmitted through said first colour wheel through said first optical filter, and said ruddiness reflexes to said first optical filter through said first colour wheel;
Said green wavelength conversion equipment is one to be coated with second colour wheel that is used for said second exciting light is converted into the green wavelength transition material of second Stimulated Light that comprises green glow at least; Said second exciting light is transmitted through said second colour wheel through said second optical filter, and said green glow reflexes to said second optical filter through said second colour wheel.
11. light-emitting device as claimed in claim 8 is characterized in that: said ruddiness reflexes to the outbound course of said merging light through said first optical filter; Said green glow is transmitted through the outbound course of said merging light again through said first optical filter after the said second optical filter transmission; Said blue light is transmitted through the outbound course of said merging light again through said first optical filter after said second optical filter reflection.
12. light-emitting device as claimed in claim 11 is characterized in that: said red light wavelength conversion equipment is one to be coated with first colour wheel that is used for said first exciting light is converted into the red light wavelength transition material of first Stimulated Light that comprises ruddiness at least; Said first exciting light is transmitted through said first colour wheel through said first optical filter, and said ruddiness reflexes to said first optical filter through said first colour wheel;
Said green wavelength conversion equipment is one to be coated with second colour wheel that is used for said second exciting light is converted into the green wavelength transition material of second Stimulated Light that comprises green glow at least; Said second exciting light reflexes to said second colour wheel through said second optical filter, and said green glow reflexes to said second optical filter through said second colour wheel.
13., it is characterized in that this light-emitting device comprises that also fly's-eye lens is right according to each described light-emitting device in the claim 1 to 12, be used for the light beam that the light path merge cells merges is spared light; Said fly's-eye lens is to comprising two fly's-eye lenses that are oppositely arranged, and each fly's-eye lens comprises the plural lenses unit that is closely linked together, and the longitudinal cross-section of each lens unit is regular hexagon.
14. an optical projection system is characterized in that, comprises like each described light-emitting device of claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204644620U CN202330989U (en) | 2011-11-21 | 2011-11-21 | Light-emitting device and protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204644620U CN202330989U (en) | 2011-11-21 | 2011-11-21 | Light-emitting device and protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330989U true CN202330989U (en) | 2012-07-11 |
Family
ID=46442964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204644620U Expired - Lifetime CN202330989U (en) | 2011-11-21 | 2011-11-21 | Light-emitting device and protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330989U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062837A (en) * | 2013-03-22 | 2014-09-24 | 索尼公司 | Light source device and display device |
| CN104102082A (en) * | 2014-08-01 | 2014-10-15 | 长沙创荣电子科技有限公司 | LED projector and light source device thereof |
| CN104683775A (en) * | 2013-11-28 | 2015-06-03 | 台达电子工业股份有限公司 | Blue light synthesis method and system |
| CN105388692A (en) * | 2015-12-30 | 2016-03-09 | 中国华录集团有限公司 | Projector red and blue laser light source system |
| WO2019019592A1 (en) * | 2017-07-25 | 2019-01-31 | 深圳市绎立锐光科技开发有限公司 | Light source device and stage lamp illumination system using the same |
| CN111578164A (en) * | 2020-05-07 | 2020-08-25 | 赫尔曼·友瀚·范·贝赫库姆 | Solid-state light source light-emitting device |
| CN114280883A (en) * | 2022-01-13 | 2022-04-05 | 北京数字光芯科技有限公司 | Projection structure and projection method capable of improving red light efficiency |
| WO2022100098A1 (en) * | 2020-11-13 | 2022-05-19 | 歌尔股份有限公司 | Projection light path and projection apparatus |
-
2011
- 2011-11-21 CN CN2011204644620U patent/CN202330989U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10732425B2 (en) | 2013-03-22 | 2020-08-04 | Sony Corporation | Light source device and display device |
| CN108710257A (en) * | 2013-03-22 | 2018-10-26 | 索尼公司 | Light supply apparatus |
| CN104062837A (en) * | 2013-03-22 | 2014-09-24 | 索尼公司 | Light source device and display device |
| CN104683775A (en) * | 2013-11-28 | 2015-06-03 | 台达电子工业股份有限公司 | Blue light synthesis method and system |
| CN104683775B (en) * | 2013-11-28 | 2017-03-01 | 台达电子工业股份有限公司 | Blue light synthetic method and system |
| CN104102082A (en) * | 2014-08-01 | 2014-10-15 | 长沙创荣电子科技有限公司 | LED projector and light source device thereof |
| CN105388692A (en) * | 2015-12-30 | 2016-03-09 | 中国华录集团有限公司 | Projector red and blue laser light source system |
| WO2019019592A1 (en) * | 2017-07-25 | 2019-01-31 | 深圳市绎立锐光科技开发有限公司 | Light source device and stage lamp illumination system using the same |
| US11092312B2 (en) | 2017-07-25 | 2021-08-17 | Ylx Incorporated | Light source device and stage lamp illumination system using the same |
| CN111578164A (en) * | 2020-05-07 | 2020-08-25 | 赫尔曼·友瀚·范·贝赫库姆 | Solid-state light source light-emitting device |
| WO2022100098A1 (en) * | 2020-11-13 | 2022-05-19 | 歌尔股份有限公司 | Projection light path and projection apparatus |
| CN114280883A (en) * | 2022-01-13 | 2022-04-05 | 北京数字光芯科技有限公司 | Projection structure and projection method capable of improving red light efficiency |
| CN114280883B (en) * | 2022-01-13 | 2024-01-12 | 北京数字光芯科技有限公司 | Projection structure and projection method capable of improving red light efficiency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202330989U (en) | Light-emitting device and protection system | |
| US9075299B2 (en) | Light source with wavelength conversion device and filter plate | |
| KR102088741B1 (en) | Light-emitting device and projection system | |
| CN102722073B (en) | Light source system and projector | |
| CN102645826B (en) | Light source system, illuminating device and projecting device | |
| CN205992115U (en) | Light-source system and projector equipment | |
| CN101592308B (en) | Light source capable of supplying polychromatic light and method thereof | |
| CN103062672B (en) | Lighting system and projection device | |
| KR101209668B1 (en) | Multicololr illumination device using moving plate with wavelength conversion materials | |
| CN102566230B (en) | Projection system, light source system and light source component | |
| CN204403814U (en) | Lighting device | |
| CN202615106U (en) | Light-emitting device and projection system | |
| US20070165186A1 (en) | Light source system and an image projection system | |
| CN204595411U (en) | Light-emitting device and projection display apparatus | |
| TW201541180A (en) | A light source system and a projection system and a projection | |
| CN102520569A (en) | Light source device and projection device using same | |
| CN202351606U (en) | Light source system and projection device | |
| CN202886821U (en) | Light source system and related projection system | |
| CN105045024A (en) | Projection system, light source system and light source assembly | |
| EP3745204A1 (en) | Projection device and color gamut adjustment method | |
| CN209388102U (en) | A kind of Wavelength converter, laser source system and projector | |
| CN103412460A (en) | Light source device and projector with light source device | |
| CN104730829A (en) | Wavelength Converter, Optical System And Light Source Unit And Projection Device | |
| CN1947429A (en) | Light engine for frame-sequential color projection display system having monochromatic light sources, system and driving method | |
| CN106933009A (en) | Light supply apparatus and the optical projection system including the light supply apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee before: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address before: 518000 3rd floor Fangda Building, Nanshan Science Park, Shenzhen, Guangdong Province Patentee before: APPOTRONICS Corp.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |