The content of the invention
In view of this, the invention provides a kind of light source module and projector equipment, to solve in the prior art
Due to the dimension precision requirement of the mechanical structure to stationary mirror it is higher caused by light source module processing
The larger problem of difficulty.
To achieve the above object, the present invention provides following technical scheme:
A kind of light source module, including array of source and the optical beam redirector that is correspondingly arranged with the array of source
Array;
The array of source includes multiple light sources;
The optical beam redirector array includes the optical beam redirector of multiple stepped arrangements, and the light beam turns
Corresponded with the light source to device and set, the optical beam redirector is used to for incident beam to turn to specific angle
Outgoing after degree, wherein, it is incident to the optical beam redirector with arbitrarily angled in the light beam of the light source outgoing
When, the light beam is turned to specific angle by the optical beam redirector.
Preferably, the light source module also includes being located at the array of source and the optical beam redirector array
Between lens array, the lens array includes multiple collimation lenses, the collimation lens and the light
Source corresponds and sets, and the collimation lens is parallel for the convergence of rays that the light source is launched to be collimated into
Light beam.
Preferably, the light source module also includes collector lens, and the collector lens turns positioned at the light beam
On emitting light path to device array, for assembling the collimated light beam after collimation is turned to.
Preferably, the optical beam redirector is the prism at least with the first reflecting surface and the second reflecting surface,
The angle of first reflecting surface and the second reflecting surface is 45 degree;
Incident beam reflects 90 degree of outgoing of rear steering successively by first reflecting surface and the second reflecting surface.
Preferably, the optical beam redirector is pentagonal prism, and the pentagonal prism includes successively adjacent the
Simultaneously, the second face, the 3rd face, fourth face and the 5th face, wherein, the angle in the 3rd face and the 5th face is
45 degree;
After the light of the light source outgoing enters the pentagonal prism inside from first face, by described the
Three faces and the 5th face reflect successively after from second face outgoing, or, by the 3rd face, fourth face
From second face outgoing after being reflected successively with the 5th face, wherein, from the light of second face outgoing with
It it is 90 degree from the angle between the incident light in first face.
Preferably, there are reflecting strips on the 3rd face and the 5th face of the pentagonal prism;Or, described
There are reflecting strips on three faces, fourth face and the 5th face;The reflecting strips are connected with pentagonal prism gluing.
Preferably, the optical beam redirector includes the first adjacent successively face, the second face, the 3rd face and the
On four sides, wherein, the angle of the second face and fourth face is 45 degree;
It is described after the light of the light source outgoing enters the optical beam redirector inside from first face
Second face and fourth face reflect successively after from first face outgoing, or, by second face, the 3rd
Face and fourth face reflect successively after from first face outgoing, wherein, from the light of first face outgoing
With from the angle between the incident light in first face be 90 degree.
Preferably, there are reflecting strips on second face and fourth face;Or, second face, the 3rd
There are reflecting strips on face and fourth face;The reflecting strips are connected with optical beam redirector gluing.
A kind of optical projection system, including the as above light source module described in any one.
Compared with prior art, technical scheme provided by the present invention has advantages below:
Light source module provided by the present invention and projector equipment, by optical beam redirector by the light of light source outgoing
Beam turns to specific angle, also, because the light beam of light source outgoing is turned to the arbitrarily angled light beam that is incident to
During device, light beam can be turned to specific angle by optical beam redirector, therefore, the optical beam redirector is to machinery
The dimension precision requirement of structure is relatively low, such that it is able to reduce the difficulty of processing of light source module.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
An embodiment provides a kind of light source module, as shown in Fig. 2 the light source module includes
Array of source 1 and the optical beam redirector array 2 being correspondingly arranged with array of source 1.
Wherein, array of source 1 includes multiple light sources 10, and optical beam redirector array 2 includes multiple stepped
The optical beam redirector 20 of arrangement, and optical beam redirector 20 corresponds setting with light source 10, that is to say, that
Each optical beam redirector 20 is located in the light path of a corresponding light source 10.
In the present embodiment, light source 10 is the laser of the blue laser of transmitting, further, the row of multiple light sources 10
Row squarely or circle etc., light source 10 transmitting blue laser can excitated fluorescent powder light, with composite projection use
White light.Optical beam redirector 20 is the steering gear that incident ray is turned to special angle, wherein, in light source
The light of 10 outgoing with it is arbitrarily angled be incident to corresponding optical beam redirector 20 when, corresponding optical beam redirector
20 by the specific angle of the turn light rays.
Optionally, optical beam redirector 20 is the prism at least with the first reflecting surface and the second reflecting surface, institute
The angle for stating the first reflecting surface and the second reflecting surface is 45 degree, the incident light of vertical incidence to the first reflecting surface
Line reflects outgoing after 90 degree of rear steering successively by first reflecting surface and the second reflecting surface.
Specifically, the optical beam redirector 20 is pentagonal prism, as shown in figure 3, Fig. 3 cutting for pentagonal prism
Face schematic diagram, the pentagonal prism includes the first face a, the second face b, the 3rd face c, fourth face d adjacent successively
With the 5th face e, wherein, the angle of the 3rd face c and the 5th face e is 45 degree, the folder of the second face b and the 3rd face c
Angle is 112.5 degree, and the angle of the 5th face e and the first face a is 112.5 degree, the angle of the first face a and the second face b
It is 90 degree.
After the light of the outgoing of light source 10 enters the pentagonal prism inside from the first face a, by the 3rd face c and the 5th
Face e reflect successively after from the second face b outgoing, because the angle of the 3rd face c and the 5th face e is 45 degree, therefore,
From the light of the second face b outgoing and from the angle between the incident light of the first face a be 90 degree.That is,
The light of the outgoing of light source 10 enters its internal rear steering from the first face a that optical beam redirector 20 is pentagonal prism
90 degree and from the second face b outgoing.
In some cases, as shown in phantom in Figure 3, the light of the outgoing of light source 10 enters five from the first face a
Behind angle prism inside, from the second face b outgoing after successively being reflected by the 3rd face c, fourth face d and the 5th face e,
Equally, the light of the outgoing of light source 10 from the first face a of pentagonal prism enter 90 degree of its internal rear steering and from
Second face b outgoing.
There are reflecting strips in the present embodiment, on the 3rd face c of pentagonal prism and the 5th face e or reflectance coating is coated with,
To improve the reflection characteristic of the 3rd face c and the 5th face e, it is to avoid light is transmitted from the 3rd face c and the 5th face e
Go, or, all there is reflecting strips or reflectance coating on the face c of pentagonal prism the 3rd, fourth face d and the 5th face e.
Optionally, the reflecting strips are bonded on the pentagonal prism in the way of gluing.
In the present embodiment, by pentagonal prism by 90 degree of the turn light rays of the outgoing of light source 10, also, no matter
The light of the outgoing of light source 10 is incident to the first face a of pentagonal prism with which kind of angle, and light beam can turn to 90 degree
Outgoing, therefore, be not required to do the light of the outgoing of light source 10 and the angle of the first face a strict setting, that is, it is not required to
Dimension precision requirement to the mechanical structure of fixed pentagonal prism is too high, such that it is able to reduce light source module
Difficulty of processing.Also, can be come by the difference in height between each pentagonal prism for adjusting arranged in step shape
The spacing between each outgoing beam is adjusted, realizes reducing the purpose of light source die packet size.
In another embodiment of the invention, as shown in figure 4, Fig. 4 is a kind of light beam in the present embodiment
The cross-sectional view of steering gear, the optical beam redirector is Dove prism, and the Dove prism is included successively
Adjacent the first face a1, the second face b1, the 3rd face c1 and fourth face d1, wherein, the second face b1 and
The angle of four sides d1 is 45 degree.
Behind the optical beam redirector inside that the light of the outgoing of light source 10 enters shown in Fig. 4 from the first face a1, quilt
Second face b1 and fourth face d1 reflect successively after from the first face a1 outgoing, or, by the second face b1,
Three face c1 and fourth face d1 reflect successively after from the first face a1 outgoing, wherein, from the first face a1 outgoing
Light and from the angle between the incident light of the first face a1 be 90 degree.
Equally, Dove prism is not required to do the light of the outgoing of light source 10 with the angle of the first face a1 and strictly sets
It is fixed, that is, be not required to it is too high to the dimension precision requirement of the mechanical structure of fixed Dove prism, such that it is able to reduce
The difficulty of processing of light source module.
On the basis of any of the above-described embodiment, as shown in figure 5, the light source module that the present invention is provided also includes
Lens array 3 between the array of source 1 and the optical beam redirector array 2, the lens array
3 include multiple collimation lenses 30, and the collimation lens 30 is corresponded with the light source 10 and set, i.e., each
Collimation lens 30 is located in the light path of corresponding light source 10, and the collimation lens 30 is used for the light source 10
The convergence of rays of transmitting is collimated into collimated light beam.
On the basis of above-described embodiment, as shown in fig. 6, the light source module that the present invention is provided also includes optically focused
Lens 4, the collector lens 4 is located on the emitting light path of the optical beam redirector array 2, for assembling standard
Collimated light beam after straight steering, so that the collimated light beam excites the light of different colours, carries out projected picture
Display.
The present embodiment provide light source module, by optical beam redirector by light source by lens outgoing light beam
Turn to specific angle, also, lens outgoing is incident to light due to the light beam of light source outgoing with arbitrarily angled
During beam steering gear, light beam can be turned to specific angle by optical beam redirector, therefore, the optical beam redirector
Dimension precision requirement to mechanical structure is relatively low, such that it is able to reduce the difficulty of processing of light source module.
An alternative embodiment of the invention provides a kind of projector equipment, and the projector equipment includes as above any
Light source module and fluorescence colour wheel of embodiment offer etc., the beam excitation fluorescence colour wheel of light source module outgoing
On light-emitting phosphor, for example, the light beam of light source module outgoing is blue laser, the fluorescence on fluorescence colour wheel
Powder is yellow fluorescent powder, then unabsorbed blue laser and the white light used by the gold-tinted composite projection for inspiring.
The present embodiment provide projector equipment, by optical beam redirector by light source by lens outgoing light beam
Turn to specific angle, also, lens outgoing is incident to light due to the light beam of light source outgoing with arbitrarily angled
During beam steering gear, light beam can be turned to specific angle by optical beam redirector, therefore, the optical beam redirector
Dimension precision requirement to mechanical structure is relatively low, such that it is able to reduce the difficulty of processing of light source module.
Each embodiment is described by the way of progressive in this specification, and each embodiment is stressed
The difference with other embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses this hair
It is bright.Various modifications to these embodiments will be apparent for those skilled in the art,
Generic principles defined herein can without departing from the spirit or scope of the present invention, at it
Realized in its embodiment.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and
It is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.