CN110579884B - Light emitting device and projector having the same - Google Patents
Light emitting device and projector having the same Download PDFInfo
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- CN110579884B CN110579884B CN201910897542.6A CN201910897542A CN110579884B CN 110579884 B CN110579884 B CN 110579884B CN 201910897542 A CN201910897542 A CN 201910897542A CN 110579884 B CN110579884 B CN 110579884B
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
Abstract
The invention provides a light-emitting device and a projector with the same. The light emitting device includes: a first array of light sources; a second light source array arranged parallel to the first light source array; the light combining unit is arranged between the first light source array and the second light source array and comprises a first light combining part and a second light combining part, the first light combining part is provided with a reflecting part and a light transmitting part which are arranged at intervals, light emitted by the first light source array is reflected by the reflecting part and is emitted along a first direction to form a first light spot array, light emitted by the second light source array is turned by the second light combining part and then is emitted along the first direction to form a second light spot array, and at least one row of light spots of the second light spot array is positioned between two adjacent rows of light spots of the first light spot array. The light-emitting device can realize good light combination effect, so that the luminosity is more uniform.
Description
Technical Field
The invention relates to the field of projection equipment, in particular to a light-emitting device and a projector with the same.
Background
In general, a common laser projection apparatus employs a light combining module and a light splitting module configured to generate a plurality of imaging color lights required for subsequent projection imaging, and employs the light combining module, the light guiding module and the light splitting module, wherein the light combining module includes a plurality of reflectors and two light sources. The existing laser light combining structure has a relatively large volume, which is not beneficial to subsequent light path processing and overall arrangement, and the light spot synthesized by the existing light combining structure has uneven brightness and poor effect.
Disclosure of Invention
The invention aims to provide a light-emitting device and a projector with the same, and aims to solve the problem that a light combining structure in the prior art is poor in light combining effect.
In order to achieve the above object, according to one aspect of the present invention, there is provided a light emitting device including: a first array of light sources; a second light source array arranged parallel to the first light source array; the light combining unit is arranged between the first light source array and the second light source array and comprises a first light combining part and a second light combining part, the first light combining part is provided with a reflecting part and a light transmitting part which are arranged at intervals, light emitted by the first light source array is reflected by the reflecting part and is emitted along a first direction to form a first light spot array, light emitted by the second light source array is turned by the second light combining part and then is emitted along the first direction to form a second light spot array, and at least one row of light spots of the second light spot array is positioned between two adjacent rows of light spots of the first light spot array.
Furthermore, the second light combining component is positioned on one side of the space between the first light source array and the second light source array and is perpendicular to the first light source array and the second light source array, light emitted by the second light source array is reflected by the light reflecting part and emitted along a second direction opposite to the first direction and enters the second light combining component, and the second light combining component deflects light emitted by the second light source array, so that the light emitted by the second light source array passes through the light transmitting part of the first light combining component and is emitted along the first direction.
Further, the first direction is parallel to the extending direction of the plane of the first light source array.
Further, the first light source array comprises at least one first light source group which forms a row of first light spot rows through the light combination unit, the first light source group comprises at least one first light source, the second light source array comprises at least one second light source group which forms a row of second light spot rows through the light combination unit, the second light source group comprises at least one second light source, each first light source and each second light source are arranged in a one-to-one correspondence mode, and the first light combination component is obliquely arranged along the first direction towards the direction gradually close to the second light source array.
Furthermore, the number of the first light combining parts is the same as the number of the first light sources of the first light source group, and the first light combining parts are arranged corresponding to the first light sources of the first light source group.
Furthermore, the first light combining component comprises a transparent substrate and a coating layer fixedly arranged on one side surface of the transparent substrate, and the coating layer divides the transparent substrate into a plurality of light reflecting parts and light transmitting parts which are arranged alternately.
Furthermore, the second light combining component comprises a first reflecting surface and a second reflecting surface which are perpendicular to each other, wherein the first reflecting surface and the second reflecting surface form an opening, and the opening faces to the first direction.
Further, the first light source array includes at least one first light source group forming a row of first light spot rows through the light combining unit, each first light source group includes at least one first light source, the second light source array includes at least one second light source group forming a row of second light spot rows through the light combining unit, each second light source group includes at least one second light source, a projection of the first light source in the third direction and a projection of the corresponding second light source in the third direction have a first offset distance, the third direction is perpendicular to the first direction, a projection of the first light source in the first direction and a projection of the corresponding second light source in the first direction have a second offset distance, the first light sources on the same straight line in the third direction form the first light source row, and the second light sources on the same straight line in the third direction form the second light source row.
Further, the light combining unit includes: the first light combining part is arranged in one-to-one correspondence with each first light source row and is provided with a light reflecting part and a light transmitting part, and light emitted by the first light source is reflected by the light reflecting part of the first light combining part and is emitted along a first direction to form a first light spot array; and the second light combining parts are arranged in one-to-one correspondence with the second light source rows, and light emitted by the second light sources passes through the second light combining parts and is emitted along the first direction, and passes through the light transmitting parts of the first light combining parts to form a second light spot array.
Furthermore, the second light combining component is a polarization light splitting film; the light-emitting device further comprises a third light source array, the third light source array is arranged on one side of the first light source array, the plane of the third light source array is perpendicular to the plane of the first light source array, the polarization state of light emitted by the third light source array is different from the polarization state of light emitted by the first light source array and the second light source array, at least part of light emitted by the third light source array passes through the second light combining component, then passes through the light-transmitting part of the first light combining component and is emitted along the first direction, and light spots which are overlapped with part of light spots in the first light spot array and the second light spot array are formed.
Furthermore, the second light combining component is a polarization beam splitting film; the light emitting device further comprises a third light source array, a fourth light source array and an adjusting structure arranged between the third light source array and the fourth light source array, the polarization states of light emitted by the third light source array and the fourth light source array are the same and different from the polarization states of light emitted by the first light source array and the second light source array, and light emitted by the third light source array and the fourth light source array passes through the adjusting structure and exits along the first direction to form light spots overlapped with part of light spots in the first light spot array and the second light spot array.
Furthermore, the plane of the third light source array is parallel to the plane of the fourth light source array and parallel to the first direction, the third light source array includes at least one third light source column, the fourth light source array includes at least one fourth light source column, and a third offset distance is provided between each third light source of the third light source array and the corresponding fourth light source of the fourth light source array along the first direction; the adjusting structure comprises a first reflective mirror and a second reflective mirror, the first reflective mirror is arranged in one-to-one correspondence with the third light source row and enables light emitted by the third light source to be emitted along the first direction, and the second reflective mirror is arranged in one-to-one correspondence with the fourth light source row and enables light emitted by the fourth light source to be emitted along the first direction.
According to another aspect of the present invention, there is provided a projector including the light-emitting device described above.
By applying the technical scheme of the invention, the light-emitting device comprises a first light source array, a second light source array and a light combination unit. The first light source array and the second light source array emit laser light as light sources. The second array of light sources is arranged parallel to the first array of light sources. The light combining unit is arranged between the first light source array and the second light source array and comprises a first light combining part and a second light combining part, the first light combining part is provided with a reflecting part and a light transmitting part which are arranged at intervals, light emitted by the first light source array is reflected by the reflecting part and is emitted along a first direction to form a first light spot array, light emitted by the second light source array is turned by the second light combining part and is emitted along the first direction to form a second light spot array, and at least one row of light spots of the second light spot array is positioned between two adjacent rows of light spots of the first light spot array. By the aid of the light emitting device, at least part of the second light spot array 29 can be inserted into the middle of the first light spot array, so that light combination is more uniform, and the light combination effect is better.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a front view of a light-emitting device of a first embodiment of the present invention;
fig. 2 shows a top view of a light emitting device of a first embodiment of the present invention;
fig. 3 is a schematic perspective view illustrating a first light combining part of a light emitting device according to an embodiment of the present invention;
fig. 4 shows a schematic view of a first array of spots of a first embodiment of the invention;
fig. 5 shows a schematic view of a second array of spots of the first embodiment of the invention;
fig. 6 shows a schematic view of a first array of spots in combination with a second array of spots in accordance with a first embodiment of the invention;
fig. 7 shows a front view of a light emitting device of a second embodiment of the present invention;
fig. 8 shows a top view of a light emitting device of a second embodiment of the present invention;
FIG. 9 illustrates a front view of a light emitting device of the present invention having multiple polarized states of light;
FIG. 10 shows a top view of a light emitting device of the present invention having multiple light states of polarization;
FIG. 11 is a schematic diagram of a spot array of a light emitting device of the present invention having multiple polarized light states;
FIG. 12 illustrates a front view of another light emitting device of the present invention having multiple polarized light states;
fig. 13 shows a schematic perspective view of the light emitting device of fig. 12; and
FIG. 14 shows a top view of another light emitting device of the present invention having multiple polarization states.
Description of reference numerals: 10. a first array of light sources; 11. a first light source group; 19. a first array of light spots; 20. a second array of light sources; 21. a second light source group; 29. a second array of spots; 30. a first light combining member; 31. a light reflecting portion; 32. a light-transmitting portion; 40. a second light combining member; 41. a first reflective surface; 42. a second reflective surface; 50. a third array of light sources; 60. a fourth array of light sources; 71. a first reflective mirror; 72. a second reflective mirror.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 to 14, according to the first embodiment of the present invention, a light emitting device includes a first light source array 10, a second light source array 20, and a light combining unit. The first light source array 10 and the second light source array 20 emit laser light as light sources. The second light source array 20 is disposed parallel to the first light source array 10. The light combining unit is arranged between the first light source array 10 and the second light source array 20, the light combining unit comprises a first light combining part 30 and a second light combining part 40, the first light combining part 30 is provided with a light reflecting part 31 and a light transmitting part 32 which are arranged at intervals, light emitted by the first light source array 10 is reflected through the light reflecting part 31 and emitted along a first direction to form a first light spot array 19, light emitted by the second light source array 20 is turned through the second light combining part 40 and then emitted along the first direction to form a second light spot array 29, and at least one row of light spots of the second light spot array 29 is positioned between two adjacent rows of light spots of the first light spot array 19. By the light emitting device, at least part of the second light spot array 29 can be inserted in the middle of the first light spot array 19, so that light combination is more uniform, and the light combination effect is better.
It should be noted that the first direction in this embodiment is parallel to the plane of the first light source array 10 and extends to the right, i.e. the direction indicated by the arrow in fig. 1. In other embodiments, the first direction is not limited to this, the first direction may be specifically determined according to the light emitting requirement and the specific arrangement structure, after the first direction is determined, a direction opposite to the first direction is a second direction, any one of two directions perpendicular to the first direction may be determined as a third direction, and the third direction may also be determined according to the specific requirement.
Referring to fig. 1 in combination, in the present embodiment, the first light source array 10 and the second light source array 20 are arranged at intervals in the vertical direction, and the first light sources in the first light source array 10 are arranged in the horizontal plane to form an array. The first light sources of the first light source array 10 along the same straight line parallel to the first direction form a first light source group 11, and the first light sources along the same straight line perpendicular to the first direction form a first light source column. The light emitted from the first light source group 11 passes through the light combining unit to form a first light spot row. Each first light source group 11 includes at least one first light source.
The second light sources in the second light source array 20 are arranged in the horizontal plane to form an array, the second light sources on the same straight line of the second light source array 20 in the direction parallel to the first direction form a second light source group 21, and the second light sources on the same straight line perpendicular to the first direction form a second light source column. The light emitted from the second light source group 21 passes through the light combining unit to form a second light spot row. The second light source group 21 includes at least one second light source. Each first light source has a second light source corresponding to the first light source, and in the embodiment, the optical axes of the first light source and the second light source are on the same straight line.
The first light combining part 30 is disposed between the first light source array 10 and the second light source array 20, the first light combining part 30 has a light reflecting portion 31 and a light transmitting portion 32 disposed at intervals, and light emitted from the first light source array 10 is reflected by the light reflecting portion 31 and emitted in a first direction to form the first spot array 19.
The second light combining part 40 is positioned at one side of the space between the first light source array 10 and the second light source array 20 and is perpendicular to the first light source array 10 and the second light source array 20, light emitted from the second light source array 20 is reflected by the light reflecting part 31 and emitted in a second direction opposite to the first direction and enters the second light combining part 40, and the second light combining part 40 deflects and turns the incident light so that light emitted from the second light source array 20 passes through the light transmitting part 32 of the first light combining part 30 and is emitted in the first direction.
In this embodiment, the first light combining component 30 is composed of a transparent substrate and a film coating layer fixedly disposed on one surface of the transparent substrate. The transparent substrate is a glass plate, a coating layer covers one side of the glass plate, the coating layer is coated by a non-reflective material, the part of the glass plate covered by the coating layer forms a reflective part 31, the part uncovered by the coating layer forms a light-transmitting part 32, and the reflective part 31 and the light-transmitting part 32 are arranged at intervals. The light spot arrays formed by the first light source array 10 and the second light source array 20 can be ensured to be arranged alternately by arranging the light reflecting parts 31 and the light transmitting parts 32 alternately, so that the light emitting device has the advantages of simple structure, small occupied space, uniform light combination and high brightness.
In other embodiments, the transparent substrate may be made of other transparent materials. Alternatively, the first light combining component 30 can be implemented by other structures, for example, the first light combining component 30 is formed by arranging a plurality of reflecting mirrors at intervals, wherein the reflecting mirrors form the light reflecting portions 31, and the interval between two reflecting mirrors forms the light transmitting portions 32. The first light combining member 30 may be formed by attaching a mirror to the AR film.
In order to ensure that the light emitted from the first light source group 11 or the second light source group 21 can form a row of light spots, the first light combining part 30 is inclined along the first direction to gradually approach the second light source array 20, so as to form a row of light spots.
The first light combining part 30 may be a complete part, for example, a reflecting part 31 is formed on a complete glass plate by coating at the position corresponding to each first light source.
Preferably, the first light combining part 30 is a plurality of separate parts for convenience of installation, convenience of adjustment, and saving of installation space. The number of the first light combining parts 30 is the same as the number of the first light sources of the first light source group 11, and the first light combining parts 30 are disposed corresponding to the first light sources of the first light source group 11. The length direction of the first light combining part 30 is the same as the direction of the first light source row, and each first light source in the first light source group 11 corresponds to one first light combining part 30.
The second light combining member 40 includes a first reflection surface 41 and a second reflection surface 42 perpendicular to each other, and the first reflection surface 41 and the second reflection surface 42 form an opening facing the first direction. Therefore, the light path of the light emitted by the second light source can be shifted and reversed, the light emitted by the second light source passes through the light-transmitting part 32 of the first light combining part 30, and at least part of light spots in the second light spot array 29 are positioned between two adjacent rows of the first light spot array 19, so that the light combining uniformity is better.
The light emitted from the second light source array 20 passes through the transparent substrate and then irradiates on the light reflecting portion 31, is reflected by the light reflecting portion 31 and then exits along the second direction, and irradiates into the first reflecting surface 41, and is reflected to the second reflecting surface 42 by the first reflecting surface 41, and exits along the first direction by the reflection of the second reflecting surface 42, and the exiting light and the incident light are offset, so that the light reflected by the second reflecting surface 42 passes through the light transmitting portion 32 of the first light combining member 30, and the second light spot array 29 is formed.
In this embodiment, the second light combining component 40 is an isosceles right-angle prism. In other embodiments, the second light combining component 40 may also be composed of two reflecting plane mirrors perpendicular to each other, or other components capable of shifting and reversing the optical path.
According to a second embodiment of the invention, the first light source and the second light source may be mutually offset.
For example, the first light source array 10 is disposed in a horizontal plane, and the first light sources along the same line parallel to the first direction form a first light source group 11, the first light sources along the same line perpendicular to the first direction form a first light source column, and the first light source group 11 at least includes one first light source. The second light source array 20 is disposed at an interval from the first light source array 10 along the vertical direction, the second light source array 20 is also disposed in the horizontal plane, the second light sources on the same straight line parallel to the first direction form a second light source group 21, the second light sources on the same straight line perpendicular to the first direction form a second light source row, and the second light source group 21 includes at least one second light source. The first light sources and the second light sources are arranged correspondingly, but a first offset distance is reserved between the projection of the first light sources in the third direction and the projection of the corresponding second light sources in the third direction, and a second offset distance is reserved between the projection of the first light sources in the first direction and the projection of the corresponding second light sources in the first direction. The first light sources on the same straight line along the third direction form the first light source column, and the second light sources on the same straight line along the third direction form the second light source column. The first light source array 10 and the second light source array 20 thus arranged can have light spots spatially distributed.
If the first light source array 10 and the second light source array 20 are arranged in this way, the light combining unit includes a first light combining part 30 and a second light combining part 40.
The first light combining part 30 is disposed corresponding to each first light source row one to one, the first light combining part 30 has a light reflecting portion 31 and a light transmitting portion 32, and light emitted by the first light source is reflected by the light reflecting portion 31 of the first light combining part 30 and emitted in a first direction to form the first light spot array 19.
The second light combining part 40 is arranged corresponding to each second light source row one by one, and light emitted by the second light sources passes through the second light combining part 40 and is emitted along the first direction, and passes through the light transmission part 32 of the first light combining part 30 to form the second light spot array 29.
In this embodiment, the first light combining component 30 may be the structure of the first light combining component 30 in the first embodiment of the present invention. The second light combining part 40 may be a reflective mirror. The first light combining part 30 is obliquely arranged along the first direction towards the direction gradually approaching to the second light source array 20, and the second light combining part 40 is obliquely arranged along the first direction towards the direction gradually approaching to the first light source array 10, so as to ensure that the emitting directions of the light emitted by the first light source and the light emitted by the second light source are consistent.
Preferably, in order to increase the fill factor in the light spot, make the light intensity stronger and the brightness higher, the light emitting device further includes a third light source array 50, the third light source array 50 is disposed at one side of the first light source array 10, and the plane of the third light source array 50 is perpendicular to the plane of the first light source array 10, and the polarization state of the light emitted by the third light source array 50 is different from the polarization states of the light emitted by the first light source array 10 and the second light source array. For example, the light emitted from the first light source array 10 and the second light source array 20 is S light, and the light emitted from the third light source array 50 is P light, so that the light spot formed by the light emitting device has higher brightness.
If the light emitting device includes light in two polarization states, the second light combining part 40 is a polarization splitting film. At least a part of the light emitted by the third light source of the third light source array 50 passes through the second light combining member 40, then passes through the light transmitting portion 32 of the first light combining member 30, and is emitted in the first direction, so as to form light spots overlapped with part of the light spots in the first light spot array 19 and the second light spot array 29.
Referring to fig. 9 in combination, a portion of the third light source array 50 emits light directly in the first direction and forms a third light spot. The light emitted by another part of the third light sources of the third light source array 50 passes through the polarization beam splitting film and exits along the first direction to form a light spot superposed on the first light spot or the second light spot. After passing through the polarization beam splitting film, the light emitted by the second light sources of the second light source array 20 is reflected by the polarization beam splitting film, and exits along the first direction to form a second light spot.
In the present embodiment, the plane of the third light source array 50 is perpendicular to the first direction.
In other embodiments, the light emitting device may include a third light source array 50, a fourth light source array 60, and an adjustment structure disposed between the third light source array 50 and the fourth light source array 60, thereby constituting a spatially misaligned light source structure such that the filling ratio is higher.
The polarization states of the light emitted by the third light source array 50 and the fourth light source array 60 are the same and different from the polarization states of the light emitted by the first light source array 10 and the second light source array 20, for example, the third light source array 50 and the fourth light source array 60 emit P light, and the first light source array 10 and the second light source array 20 emit S light. Alternatively, the third and fourth light source arrays 50 and 60 emit S light, and the first and second light source arrays 10 and 20 emit P light.
The light from the third 50 and fourth 60 light source arrays passes through the conditioning structure and exits in a first direction to form spots that coincide with some of the spots in the first 19 and second 29 spot arrays.
The plane of the third light source array 50 is parallel to the plane of the fourth light source array 60 and parallel to the first direction, the third light source array 50 includes at least one third light source column, the fourth light source array 60 includes at least one fourth light source column, and a third offset distance is provided between each third light source of the third light source array 50 and the corresponding fourth light source of the fourth light source array 60 along the first direction.
The adjusting structure includes first and second reflective mirrors 71 and 72, the first reflective mirror 71 being disposed in one-to-one correspondence with the third light source array and emitting light emitted from the third light source in the first direction, and the second reflective mirror 72 being disposed in one-to-one correspondence with the fourth light source array and emitting light emitted from the fourth light source in the first direction. This enables a fill factor to be filled in the first array of spots, resulting in a higher spot brightness.
The light reflecting portion 31 of the first light combining component 30 may also be a polarization splitting film, and light emitted by the first light source of the first light source array 10 passes through the light reflecting portion 31 and then exits along the first direction to form a first light spot.
According to another aspect of the present invention, there is provided a projector including the light-emitting device described above.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the light-emitting device of the invention adopts a brand-new compression mode, and can obtain a small-volume high-brightness laser light source.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A light-emitting device, comprising:
a first array of light sources (10) comprising at least one first column of light sources perpendicular to a first direction, the first column of light sources comprising at least one first light source;
a second array of light sources (20) parallel to the first array of light sources, the second array of light sources comprising at least one second column of light sources arranged perpendicular to a first direction, the second column of light sources comprising at least one second light source, one of the first light sources and one of the second light sources forming a pair of light sources, a projection of the first light source in a third direction having a first offset distance from a projection of the corresponding second light source in the third direction, a projection of the first light source in the first direction having a second offset distance from a projection of the corresponding second light source in the first direction, the third direction being perpendicular to the first direction;
a light combining unit located between the first light source array and the second light source array, wherein the light combining unit includes a first light combining component (30) and a second light combining component (40), the first light combining component (30) is disposed, the first light combining component (30) is corresponding to the first light source column of the first light source array, the first light combining component (30) has a light reflecting portion (31) and a light transmitting portion (32), and light emitted by the first light source is reflected by the light reflecting portion (31) of the first light combining component (30) and emitted along a first direction to form a first light spot array (19);
the second light combining part (40) is arranged corresponding to a second light source row of the second light source array, light emitted by the second light source passes through the second light combining part (40) and is emitted along the first direction, the light passes through the light transmission part (32) of the first light combining part (30) to form a second light spot array (29), and at least one row of light spots of the second light spot array is positioned between two adjacent rows of light spots of the first light spot array.
2. A light device according to claim 1, characterized in that said first direction is parallel to the extension of the plane of said first array of light sources (10).
3. The lighting device according to claim 1, wherein the first light combining member (30) is disposed to be inclined in a direction gradually approaching the second light source array (20) along the first direction, and the second light combining member (40) is disposed to be inclined in a direction gradually approaching the first light source array (10) along the first direction.
4. The light-emitting device according to claim 1, wherein the first light-combining member (30) is formed by a plurality of spaced apart mirror segments, wherein the mirror segments form the light-reflecting portion (31) and the space between two of the mirror segments forms the light-transmitting portion (32).
5. A light emitting device according to claim 1, wherein said second light combining member (40) is a light reflecting member.
6. The lighting device according to claim 1, wherein the second light combining component (40) is a polarization splitting film;
the light-emitting device further comprises a third light source array (50), the third light source array (50) is arranged on one side of the first light source array (10), the plane where the third light source array (50) is located is perpendicular to the plane where the first light source array (10) is located, the polarization state of light emitted by the third light source array (50) is different from the polarization state of light emitted by the first light source array (10) and the second light source array, at least a part of light emitted by the third light source array (50) passes through the light-transmitting part (32) of the first light combining part (30) after passing through the second light combining part (40) and then exits along the first direction, and light spots which are overlapped with part of light spots in the first light spot array (19) and the second light spot array (29) are formed.
7. The lighting device according to claim 1, wherein the second light combining component (40) is a polarization splitting film;
the light-emitting device further comprises a third light source array (50), a fourth light source array (60) and an adjusting structure arranged between the third light source array (50) and the fourth light source array (60), the polarization states of light emitted by the third light source array (50) and the fourth light source array (60) are the same and different from the polarization states of light emitted by the first light source array (10) and the second light source array (20), and light emitted by the third light source array (50) and the fourth light source array (60) passes through the adjusting structure and exits along the first direction to form light spots which are overlapped with part of light spots in the first light spot array (19) and the second light spot array (29).
8. The lighting device according to claim 7,
the plane of the third light source array (50) is parallel to the plane of the fourth light source array (60) and parallel to the first direction, the third light source array (50) comprises at least one third light source column, the fourth light source array (60) comprises at least one fourth light source column, and each third light source of the third light source array (50) and the corresponding fourth light source of the fourth light source array (60) have a third offset distance along the first direction;
the adjusting structure comprises a first reflecting mirror (71) and a second reflecting mirror (72), wherein the first reflecting mirror (71) is arranged corresponding to the third light source column one by one and enables light emitted by the third light source to emit along the first direction, and the second reflecting mirror (72) is arranged corresponding to the fourth light source column one by one and enables light emitted by the fourth light source to emit along the first direction.
9. The lighting device according to claim 8, wherein the first light combining component (30) has a light reflecting portion (31) which is a polarization splitting film.
10. A projector comprising a light-emitting device, characterized in that the light-emitting device is the light-emitting device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910897542.6A CN110579884B (en) | 2014-10-31 | 2014-10-31 | Light emitting device and projector having the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910897542.6A CN110579884B (en) | 2014-10-31 | 2014-10-31 | Light emitting device and projector having the same |
| CN201410608259.4A CN105629644B (en) | 2014-10-31 | 2014-10-31 | Light emitting device and projector with it |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410608259.4A Division CN105629644B (en) | 2014-10-31 | 2014-10-31 | Light emitting device and projector with it |
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| Publication Number | Publication Date |
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| CN110579884A CN110579884A (en) | 2019-12-17 |
| CN110579884B true CN110579884B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910897542.6A Active CN110579884B (en) | 2014-10-31 | 2014-10-31 | Light emitting device and projector having the same |
| CN201410608259.4A Active CN105629644B (en) | 2014-10-31 | 2014-10-31 | Light emitting device and projector with it |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410608259.4A Active CN105629644B (en) | 2014-10-31 | 2014-10-31 | Light emitting device and projector with it |
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| Country | Link |
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| CN (2) | CN110579884B (en) |
| WO (1) | WO2016066022A1 (en) |
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| CN113204158B (en) * | 2020-02-03 | 2022-08-19 | 中强光电股份有限公司 | Light source module and projection device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6882379B1 (en) * | 1998-06-05 | 2005-04-19 | Seiko Epson Corporation | Light source device including a planar light source having a single, substantially continuous light emission area and display device incorporating the light source device |
| JP2011114185A (en) * | 2009-11-27 | 2011-06-09 | Seiko Epson Corp | Laser light source device, method for manufacturing laser light source device, projector, and monitoring device |
| JP5527058B2 (en) * | 2010-07-06 | 2014-06-18 | セイコーエプソン株式会社 | Light source device and projector |
| JP2012118129A (en) * | 2010-11-29 | 2012-06-21 | Sanyo Electric Co Ltd | Lighting unit and projection type video display device |
| JP5895226B2 (en) * | 2010-11-30 | 2016-03-30 | パナソニックＩｐマネジメント株式会社 | Light source device and projection display device |
| JP5842167B2 (en) * | 2011-02-28 | 2016-01-13 | パナソニックＩｐマネジメント株式会社 | Light source device and projection display device |
| CN102759068B (en) * | 2011-04-29 | 2014-07-23 | 台达电子工业股份有限公司 | Light source device |
| CN103207509B (en) * | 2012-01-12 | 2015-06-24 | 三菱电机株式会社 | Light Source Device And Projecting Display Device |
| CN102610995A (en) * | 2012-02-20 | 2012-07-25 | 深圳雅图数字视频技术有限公司 | Laser module, projecting system and lighting system |
| US8998447B2 (en) * | 2012-09-26 | 2015-04-07 | Projectdesign As | Illumination devices using array of reflectors |
| CN103747221B (en) * | 2013-12-31 | 2016-04-06 | 苏州佳世达光电有限公司 | Laser projection device |
| CN204178113U (en) * | 2014-10-31 | 2015-02-25 | 深圳市绎立锐光科技开发有限公司 | Light-emitting device and there is its projector |
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2014
- 2014-10-31 CN CN201910897542.6A patent/CN110579884B/en active Active
- 2014-10-31 CN CN201410608259.4A patent/CN105629644B/en active Active
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- 2015-10-15 WO PCT/CN2015/091973 patent/WO2016066022A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| CN105629644B (en) | 2019-10-25 |
| CN105629644A (en) | 2016-06-01 |
| CN110579884A (en) | 2019-12-17 |
| WO2016066022A1 (en) | 2016-05-06 |
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