摘要:
A light source module is provided. The light source module comprises a light source array (71) and a lens array (72) arranged corresponding to the light source array (71). The light source module further comprises a condensing lens (73) covering partial regions of the light source array (71) and the lens array (72), and a reflecting mirror array (74) positioned between the condensing lens (73) and the lens array (72). The reflecting mirror array (74) comprises a plurality of reflecting mirrors, or a plurality of reflecting mirrors and polarizing filters (740). A light path of light beam emitted by each light source of the light source array (71) which is not covered by the condensing lens (73) is provided with at least two reflecting mirrors, or at least one reflecting mirror and one polarizing filter (740). The last reflecting mirror or the polarizing filter in each light path is positioned in the area covered by the condensing lens (73), and accordingly a light beam which can not be directly incident to the condensing lens (73) is transmitted to the condensing lens (73). Since the condensing lens (73) does not need to cover the whole area of the light source array (71), the size of the condensing lens (73) is relatively small, which better satisfies the demands of practical application, and better facilitates the application of the projection device.
摘要:
A multi-layer glass phosphor powder sheet and its preparation method, and a light-emitting device. The preparation method for the multi-layer glass phosphor powder sheet includes: mixing a first optical functional material, a glass powder and an organic carrier to obtain a first slurry, and mixing a second optical functional material, the glass powder and the organic carriers to obtain a second slurry; coating the first slurry on a first substrate, and drying it at a first temperature so that at least some of the organic carrier is volatilized, to obtain a first functional layer, the first temperature being lower than a softening point of the glass powder; coating the second slurry on the surface of the first functional layer, to obtain a second functional layer; and sintering the first substrate on which the functional layers are coated at a second temperature, to obtain the multi-layer glass phosphor powder sheet. The glass phosphor powder sheet with a multi-layer structure and the preparation method therefor and the light-emitting device can prepare a glass phosphor powder sheet with a multi-layer structure and a light-emitting device more effectively.
摘要:
Provided is a wavelength conversion device (100), comprising a substrate (130), a reflecting layer (120), and a light-emitting layer (110) superimposed successively. The light-emitting layer (110) contains a wavelength conversion material and a second binder, and the reflecting layer (120) contains reflecting particles, auxiliary particles, and a first binder. The reflecting particles are used for reflecting light, and the auxiliary particles are used for filling voids between the reflecting particles. The first binder is used for binding the reflecting particles and auxiliary particles into a layer. The reflecting layer (120) not only ensures a higher reflectivity, but also achieves a lower thickness, such that the heat produced by the light-emitting layer (110) can be better transmitted to the substrate through the reflecting layer (120), which avoids a decrease in the light conversion efficiency caused by an excessively high temperature of the light-emitting layer (110). Also disclosed is a light-emitting device comprising such a wavelength conversion device (100).
摘要:
An LED unit module (11), a light-emitting device (1), and a light source system. The LED unit module (11) comprises a substrate (13) and an LED chipset (14) arranged on the substrate (13). The LED chipset (14) comprises at least five LED chips, where the LED chips are in a tight arrangement with each other, and the contour of a light-emitting side of the LED chipset is close to a regular hexagon. The LED chipset (14) comprises LED chips of at least four colors, where the four colors are red, blue, green, and amber. The LED unit module (11) allows for prevention of increased etendue and for uniform mixing of lights.
摘要:
A light-emitting device (1) and a related light source system. The light-emitting device (1) comprises a laser light source (11, 21, 31) and a light collecting system (12, 22). The laser light source (11, 21, 31) comprises a first laser array (111, 211, 311) and a second laser array (112, 212, 312) for respectively generating a first light and a second light with different wavelength ranges. The light collecting system (12, 22) is used for collecting the light emitted from the laser light source arrays. The ratio of the divergence angle of the collected second light to that of the first light is less than or equal to a predetermined value. The predetermined value is 0.7. The light-emitting device (1) is capable of generating two kinds of light beams with different etendues.
摘要:
A laser light source (300), a wavelength conversion light source, a light combining light source, and a projection system. The laser light source comprises a laser element array, a focusing optical element (33), a collimation optical element (34), an integrator rod (36) for receiving and homogenizing a secondary laser beam array (382), an angular distribution control element (35) disposed on the light path between the laser element array and the integrator rod (36) for enlarging the divergence angle of the laser beam array (382) in the direction of the short axis of the light distribution, such that the rate between the divergence angle of each of the secondary laser beam that enters the integrator rod (36) in the direction of the short axis of the light distribution and the divergence angle in the direction of the long axis is greater than or equal to 0.7.
摘要:
Disclosed are a light-emitting device and a stage lamp system, the device comprising a first LED array (310, 710, 810), a second LED array (320, 720, 820), a third LED array (330, 730, 830) and a wavelength light combination device (340, 740, 840). The first LED array (310, 710, 810) comprises blue LEDs (311) used for emitting first light rays. The second LED array (320, 720, 820) comprises yellow fluorescent LEDs (321) or green fluorescent LEDs and green LEDs (322) used for emitting second light rays. The third LED array (330, 730, 830) comprises red LEDs (331) and amber LEDs (332) used for emitting third light rays. The second light rays are at least partly emitted into the wavelength light combination device (340, 740, 840). The wavelength light combination device (340, 740, 840) comprises a first filter (341, 741) and a second filter (342, 742). The first filter (341, 741) reflects light the wavelength of which is less than or equal to » 1 and transmits light the wavelength of which is greater than » 1 , and the second filter (342, 742) transmits light the wavelength of which is less than or equal to » 2 and reflects light the wavelength of which is greater than » 2 , where 470 nm ‰¤ » 1 ‰¤ 500 nm, 560 nm ‰¤ » 2 ‰¤ 590 nm. The first filter (341, 741) makes a reflected part of the first light rays and a transmitted part of the second light rays emit in a first direction. The second filter (342, 742) makes a transmitted part of the second light rays and a reflected part of the third light rays emit in the first direction. The light-emitting device and the stage lamp system can emit a white light with a high colour rendering index.
摘要:
A light source system and a projection system applied thereby. The light source system includes a light source (10) emitting excitation light, a moving device (20) provided with an optical wavelength conversion material and an adjustment device (30). The excitation light irradiates on the optical wavelength conversion material. When the moving device (20) is in a periodical moving state, the light spot position irradiated by the excitation light on the moving device (20) moves following a first working track. The adjustment device (30) is used for adjusting the light spot position so that the light spot position irradiated by the adjusted excitation light on the moving device (20) moves following a second working track. The first working track is separated from the second working track. The present invention can reduce the working load of the optical wavelength conversion material on the first working track, thus slowing the aging speed of the optical wavelength conversion material, and improving the service light of the light source system.
摘要:
The present disclosure discloses a light source device. The light source device comprises a light source array configured to emit an excitation light; a phosphor sheet arranged in a propagation direction of the excitation light and configured to receive the excitation light to emit an excited unsaturated amber light; and a cutoff filter arranged along a propagation direction of the unsaturated amber light and configured to filter the unsaturated amber light to obtain a saturated amber light. The disclosed light source device generates an unsaturated amber light through exciting a phosphor sheet by the excitation light emitted from a light source array, and obtains a saturated amber light through filtering the unsaturated amber light by a cutoff filter. Because the light source array is insensitive to temperature, the luminous flux of the excitation light emitted by the light source array at high temperature may be increased. The luminous flux of the amber light emitted by the light source device is also increased, accordingly.
摘要:
The present disclosure discloses a light-emitting device and a projection system, comprising: a light source, configured to emit excitation light; a beam-splitting-combining plate disposed in an outgoing light path of the excitation light, and including a beam-splitting portion configured to split the excitation light into a first excitation light and a second excitation light along different propagation paths; a first wavelength conversion device disposed in an outgoing light path of the first excitation light, and including a first wavelength converting layer configured to absorb the first excitation light to generate first excited light; and a second wavelength conversion device disposed in an outgoing light path of the second excitation light and configured to reflect the second excitation light back to the beam-splitting-combining plate. The beam-splitting-combining plate further includes a beam-combining portion disposed around the beam-splitting portion, and the beam-combining portion is configured to combine the first excited light and the second excitation light respectively reflected to the beam-splitting-combining plate into one beam, thereby reducing the size and the cost of the projection system.