CN107300824A - Light source module - Google Patents
Light source module Download PDFInfo
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- CN107300824A CN107300824A CN201610237004.0A CN201610237004A CN107300824A CN 107300824 A CN107300824 A CN 107300824A CN 201610237004 A CN201610237004 A CN 201610237004A CN 107300824 A CN107300824 A CN 107300824A
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- Prior art keywords
- lens
- light
- light beam
- light source
- source module
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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
- G03B21/2066—Reflectors in illumination beam
-
- 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
Abstract
A kind of light source module, includes light source cell, the first projection lens, the first lens, mirror wheel, the first light element, the second light element and the second projection lens.Light source cell is to provide light beam.First projection lens has entrance pupil.The light beam that light source cell is provided, by the first projection lens, is then led to mirror wheel through entrance pupil through the first lens.With the rotation of mirror wheel, when light beam penetrates mirror wheel, as penetrating light beam, and another time, light beam reflects in mirror wheel, then as the reflected beams.Second projection lens sets and penetrates light beam and the reflected beams to receive, and with the first emergent pupil and the second emergent pupil.First emergent pupil is set with the second emergent pupil passes through the second projection lens through the first emergent pupil and the second emergent pupil respectively to be arranged into a row, and penetrate light beam with the reflected beams.
Description
Technical field
The present invention relates to a kind of light source module.
Background technology
Jiao is gazed at the development of science and technology, the optical articles that stereoscopic vision shows can be presented and have turned on consumption market
Point.Using binocular parallax, 3 d display device can pass through optical module and image delivered to eyes respectively, and then produce relief painting
Face.That is, using the binocular parallax of the mankind, 3 d display device can provide audience two different images respectively, with up to
Into stereoscopic display.Among 3 d display device, it is three-dimensional it is naked regarding display be that the light beam of tool different images is respectively transmitted to sky
Between upper different positions.On the other hand, the visual region for obtaining stereopsis that 3 d display device is provided also can be by its light source
Module is determined.In other words, the efficiency of 3 d display device can have correlation with its light source module.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of light source module, can change light source cell in column direction with twice
Etendue.
To achieve these goals, the invention provides a kind of light source module, comprising light source cell, the first projection lens,
First lens, mirror wheel, the first light element, the second light element and the second projection lens.Light source cell is to provide light beam.The
One projection lens has entrance pupil.The light beam that light source cell is provided passes through the first projection lens through entrance pupil.First
Projection lens is optically coupled between light source cell and the first lens, and the first lens set light beam being directed to mirror wheel.Light
Beam penetrates mirror wheel in the very first time, and as penetrating light beam, and light beam reflexes to the first lens in the second time by mirror wheel, and into
For the reflected beams.First light element sets and penetrates light beam to guide.Second light element sets to be directed through the first lens
The reflected beams.First light element and the second light element guide that to penetrate light beam and the reflected beams same to the first lens respectively
Side.Second projection lens sets and penetrates light beam and the reflected beams to receive, and with the first emergent pupil and the second emergent light
Pupil.First emergent pupil and the second emergent pupil set to be arranged into a row, and penetrate light beam and the reflected beams respectively through the
One emergent pupil passes through the second projection lens with the second emergent pupil.
In some embodiments of the present invention, the first lens, mirror wheel, the first light element and the second light element optics coupling
Together between the first projection lens and the second projection lens.
In some embodiments of the present invention, the area of the first emergent pupil and any of which of the second emergent pupil is with entering
The area for penetrating pupil is identical.
In some embodiments of the present invention, light source cell includes optical transmitting set, numerical digit microreflection mirror element
(digital micromirror device；DMD) with the 3rd light element.Optical transmitting set is to provide light beam.3rd is guide-lighting
Unit is optically coupled between optical transmitting set and numerical digit microreflection mirror element, the light beam from optical transmitting set to be directed to
On numerical digit microreflection mirror element, and the light beam reflected from numerical digit microreflection mirror element is directed to the first projection lens.
In some embodiments of the present invention, light source module also includes the 4th light element.4th light element includes the
One speculum and the second lens.First mirror optics is coupled between the first lens and mirror wheel, will come from the first lens
Light beam be directed to mirror wheel.Second optics of lens is coupled between the first speculum and mirror wheel, will come from the first speculum
Light beam converge to mirror wheel.
In some embodiments of the present invention, the first light element includes an at least reflecting interface, and the first light element
Make to penetrate at least 90 degree of light beam deviation through reflecting interface.
In some embodiments of the present invention, the first light element includes the first reflector element, the second reflector element and the
Three lens.Second reflector element is optically coupled between the first reflector element and the 3rd lens.Through mirror wheel penetrate light beam according to
Sequence is in after the first reflector element and the reflection of the second reflector element, into the 3rd lens.First light element is led through the 3rd lens
Draw and penetrate light beam to the first emergent pupil.
In some embodiments of the present invention, the reflected beams are converged to its focal plane by the first lens, and the 3rd lens will be worn
Light beam transmission converges to its focal plane.The focal plane of first lens is orthogonal with the focal plane of the 3rd lens.
In some embodiments of the present invention, the second light element includes the second speculum.Second speculum has reflection
Interface, and the angle divided equally between the focal plane of the first lens and the focal plane of the 3rd lens of bearing of trend of reflecting interface, its
In the second light element guide the reflected beams to the second emergent pupil through the reflecting interface of the second speculum.
In some embodiments of the present invention, the side of the optical axis of the first lens, the optical axis of the 3rd lens and the second speculum
Edge is at least met at a bit.
In some embodiments of the present invention, the second light element includes the second speculum.Second speculum has reflection
Interface, and the optical axis of the bearing of trend of reflecting interface and the first lens is positioned at an angle, and between 30 degree to 60 degree.Second leads
Light unit guides the reflected beams to the second emergent pupil through reflecting interface.
In some embodiments of the present invention, mirror wheel has an at least first area and an at least second area.Firstth area
Domain penetrates light beam to make light beam penetrate and turn into the very first time.Second area returns the to make light beam in the second time reflex
One lens simultaneously turn into the reflected beams.The area of first area and the area ratio of second area are between 0.5 to 1.5.
The technical effects of the invention are that：
The light source module of the present invention includes light source cell, light element, the first projection lens and the second projection lens, wherein
Light element includes the first lens, mirror wheel, the first light element, the second light element.Light source module can pass through mirror wheel by light source
The light beam that unit is provided, which is switched to, penetrates light beam and the reflected beams.Mirror wheel can make the light beam that light source cell is provided when first
Between turn into and penetrate light beam, and the light beam that light source cell is provided is turned into the reflected beams in the second time.First light element and
Second light element can will penetrate light beam respectively and the reflected beams are directed to the first emergent pupil and second of the second projection lens
Emergent pupil, wherein the first emergent pupil and the second emergent pupil is are arranged into a row, so as in the second projection lens of lifting the
The synthesis area of one emergent pupil and the second emergent pupil.Synthesis area is twice of the entrance pupil of the first projection lens.Cause
This, the etendue that the second projection lens is provided is twice of the etendue for the light source cell that the first projection lens receives.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Brief description of the drawings
Fig. 1 is the configuration schematic diagram of an embodiment of light source module of the present invention；
Fig. 2A is the schematic elevation view of Fig. 1 the first projection lens；
Fig. 2 B are the schematic elevation view of Fig. 1 the second projection lens；
Fig. 3 is the schematic elevation view of Fig. 1 mirror wheel；
Fig. 4 is the light path schematic diagram for penetrating light beam of Fig. 1 light source module；
Fig. 5 is the light path schematic diagram of the reflected beams of Fig. 1 light source module；
Fig. 6 provides the reflected beams simultaneously for Fig. 1 light source module and penetrates the schematic diagram of light beam.
Wherein, reference
100 light source modules
102 light source cells
104 optical transmitting sets
106 numerical digit microreflection mirror elements
108 light guide modules
110 first projection lens
112 entrance pupils
114 second projection lens
116 first emergent pupils
118 second emergent pupils
120 first lens
122 mirror wheels
124 first light elements
126 second light elements
128 the 3rd light elements
130 the 4th light elements
132 first speculums
134 second speculums
136 second lens
138 the 3rd lens
140 the 4th lens
142 the 5th lens
144 the 6th lens
146 first reflector elements
148 second reflector elements
150 first total reflection prisms
152 second total reflection prisms
A1, A2 optical axis
I1, I2, I3, I4 reflecting interface
L, L ', L " light beams
T penetrates light beam
R, R ' the reflected beams；
P1, P2 focal plane
Z1 first areas
Z2 second areas
θ angles
Embodiment
The structural principle and operation principle of the present invention are described in detail below in conjunction with the accompanying drawings：
As clearly stated, the details in many practices will be explained in the following description.It should be appreciated, however, that
Details in these practices is not applied to limit the present invention.That is, in some embodiments of the present invention, in these practices
Details be non-essential.In addition, for the sake of simplifying accompanying drawing, the usual structure of some prior arts and element in the accompanying drawings will be with
The mode simply illustrated is illustrated.
The light source module of the present invention includes light source cell, light element, the first projection lens and the second projection lens, wherein
Light element includes the first lens, mirror wheel, the first light element, the second light element.Light source module can pass through mirror wheel by light source
The light beam that unit is provided, which is switched to, penetrates light beam and the reflected beams.First light element and the second light element will can be worn respectively
Light beam transmission and the reflected beams are directed to the first emergent pupil and the second emergent pupil of the second projection lens, wherein the first emergent light
Pupil and the second emergent pupil change etendue of the light source cell in column direction to be arranged into a row so as to twice.
Fig. 1 is refer to, wherein Fig. 1 is the configuration schematic diagram of an embodiment of light source module 100 of the present invention.Light source module
100 include light source cell 102, light guide module 108, the first projection lens 110 and the second projection lens 114.Light source cell 102 is used
To provide light beam L to the first projection lens 110.Light guide module 108 includes the first lens 120, mirror wheel 122, the first light element
124th, the second light element 126, and light guide module 108 be optically coupled to the first projection lens 110 and the second projection lens 114 it
Between, that is, the first lens 120, mirror wheel 122, the first light element 124 and the second light element 126 are optically coupled to the first throwing
Between the projection lens 114 of shadow camera lens 110 and second.Therefore, the light beam L that light source cell 102 is provided sequentially can be thrown by first
Shadow camera lens 110, the projection lens 114 of light guide module 108 and second.In addition, guide-lighting comprising the first lens 120, mirror wheel 122, first
Unit 124, the light guide module 108 of the second light element 126 can be considered relaying (relay) microscope group.
Light source cell 102 includes optical transmitting set 104, numerical digit microreflection mirror element (digital micromirror
device；DMD) 106 and the 3rd light element 128.Optical transmitting set 104 is to provide light beam L.The optics of 3rd light element 128
It is coupled between optical transmitting set 104 and numerical digit microreflection mirror element 106, it is the light beam L from optical transmitting set 104 to be led
Lead on numerical digit microreflection mirror element 106.In present embodiment, the 3rd light element 128 can be the combination of lens and prism,
And include reflecting interface I1.The reflecting interface I1 of 3rd light element 128 can reflex to the light beam L from optical transmitting set 104
Numerical digit microreflection mirror element 106.After light beam L enters numerical digit microreflection mirror element 106, light beam L can carry image signal,
And reflected from numerical digit microreflection mirror element 106.Then, the light beam L reflected from numerical digit microreflection mirror element 106 can pass through the
Three light elements 128 are led to the first projection lens 110.
It is the schematic elevation view of Fig. 1 the first projection lens 110 please to see Fig. 1, Fig. 2A and Fig. 2 B, wherein Fig. 2A again, and
Fig. 2 B are the schematic elevation view of Fig. 1 the second projection lens 114.First projection lens 110 be optically coupled to light source cell 102 with
Between first lens 120.First projection lens 110 has entrance pupil 112.The light beam L that light source cell 102 is provided can pass through
Entrance pupil 112 then marches to the first lens 120 by the first projection lens 110.By the first projection lens 110 simultaneously
Then the light beam for marching to the first lens 120 is represented by dotted lines.
Second projection lens 114 sets to receive the light beam from light guide module 108.Second projection lens 114 has the
One emergent pupil 116 and the second emergent pupil 118.First emergent pupil 116 and the second emergent pupil 118 set to be arranged into one
Row.That is, the emergent pupil 118 of the first emergent pupil 116 second for mutually close to and gapless.In addition, the first emergent pupil 116
It is identical with the area of entrance pupil 112 with the area of any of which of the second emergent pupil 118.
Light guide module 108 is made to switch in time to the light beam L for being provided light source cell 102, and is led through first
The light element 126 of light unit 124 and second guides switched light beam to the second projection lens 114.In present embodiment, light beam
L enters after light guide module 108 in through the first lens 120, can pass through mirror wheel 122 and is switched to the twice on different time
Light beam, and the light path of this twice light beam can be coupled to through the first light element 124 and the second light element 126 respectively again
The first emergent pupil 116 and the second emergent pupil 118 of second projection lens 114, such as shown in light beam L ' and light beam L ".Change speech
It, this twice light beam can be directed to second by the first light element 124 and the second light element 126 of light guide module 108 respectively
Projection lens 114, and pass through the second projection lens 114 through the first emergent pupil 116 and the second emergent pupil 118 respectively.
In under this configuration, due to passing through the first emergent pupil 116 of the second projection lens 114 to provide light beam L ' and L "
It is therefore first configured in the second projection lens 114 to be arranged into a row in the way of mutually with the second emergent pupil 118
The synthesis area of the emergent pupil 118 of emergent pupil 116 and second is twice of the entrance pupil 112 of the first projection lens 110.Change
Yan Zhi, the etendue that the second projection lens 114 is provided is the etendue for the light source cell 102 that the first projection lens 110 receives
Twice.The mechanism that light guide module 108 switches light beam will be further described below.
Fig. 1 and Fig. 3 are looked at, wherein Fig. 3 is the schematic elevation view of Fig. 1 mirror wheel.In the configuration of light guide module 108,
Light beam L can converge to the side of the first lens 120 through the first projection lens 110, and then, the first lens 120 again receive this
The light beam L held back to its side is directed to mirror wheel 122.In present embodiment, light guide module 108 also includes the 4th light element 130.
4th light element 130 includes the first speculum to make the light beam L through the first lens 120 to be led to mirror wheel 122
132 and second lens 136.
First speculum 132 is optically coupled between the first lens 120 and mirror wheel 122, and it will be will come from the first lens
120 light beam is directed to mirror wheel 122.Second lens 136 are optically coupled between the first speculum 132 and mirror wheel 122, and it is used to
Light beam L from the first speculum 132 is converged into mirror wheel 122.That is, the light beam L through the first lens 120 can be first by first
Speculum 132 reflexes to the second lens 136, then, and the second lens 136 again converge to light beam L on mirror wheel 122.Through second
The setting of lens 136, can make light beam L also efficiently be collected into mirror wheel 122, so as to the light loss in reduction system
(optical loss)。
After light beam L is collected on mirror wheel 122 through the second lens 136, mirror wheel 122 can make to march to light thereon
Beam L is penetrated in the very first time, and in the second time reflex, the wherein very first time different from the second time.Specifically, mirror wheel has
First area Z1 and second area Z2.First area Z1 is penetrated to the light beam for making to march to thereon, and second area Z2 is used to
Make to march to light beam reflection thereon.In addition, first area Z1 area and second area Z2 area ratio between 0.5 to
1.5 between.For example, in present embodiment, first area Z1 quantity is two, and second area Z2 quantity is two,
And the first area Z1 gross area is identical with the second area Z2 gross area.
Through this configuration, it can be passed through from the first lens 120 and by the convergent light beam L of the second lens 136 in the very first time
First area Z1 penetrates mirror wheel 122, and as penetrating light beam.Then, restrained from the first lens 120 and by the second lens 136
Light beam L via second area Z2 can reflex to the first lens 120 from mirror wheel 122 in the second time, and as the reflected beams,
The wherein very first time is different from the second time.In other words, from light source cell 102 launch light beam L can by light guide module 108 mirror
Take turns 122 and be switched to the twice light beam on different time, wherein be the reflected beams together, and another road is to penetrate light beam.Instead
After the light path of irradiating light beam and the light path of the reflected beams will be illustrated in.In addition, in present embodiment, penetrating light beam and the reflected beams point
It is not to be defined with penetrating mirror wheel 122 with being reflected from mirror wheel 122.Below by again to penetrating the light path of light beam and the light of the reflected beams
Road is explained respectively.
Fig. 4 is looked at, Fig. 4 is the light path schematic diagram for penetrating light beam T of Fig. 1 light source module 100.The light path that Fig. 4 is painted
For using the side of the first lens 120 as starting point.It is the same as those described above, light beam L can pass through first area Z1 in the very first time (see figure
3) mirror wheel 122 is penetrated, and as penetrating light beam T.Here, " penetrate light beam T " for refer to through mirror wheel 122 light beam, and light beam in
Penetrate after mirror wheel 122 and to be illustrated with the lines of different patterns.
First light element 124 is set penetrates light beam T to receive and guide.In other words, light beam is penetrated through mirror wheel 122
T can enter the first light element 124.First light element 124 includes the first reflector element 146, the second reflector element 148 and the
Three lens 138, wherein the second reflector element 148 is optically coupled between the first reflector element 146 and the 3rd lens 138.
First reflector element 146 can include the first total reflection prism 150, the 4th lens 140 and the 5th lens 142, wherein
First total reflection prism 150 is optically coupled between the 4th lens 140 and the 5th lens 142.Second reflector element 148 can be included
Second total reflection prism 152 and the 6th lens 144, wherein the 6th lens 144 are optically coupled to the second total reflection prism 152 and
Between three lens 138.In the light path configuration of the first reflector element 146 and the second reflector element 148, penetrating light beam T can be sequentially
By the 4th lens 140, the first total reflection prism 150, the 5th lens 142, the second total reflection prism 152, the 6th lens 144.
In addition, the 4th lens 140, the 5th lens 142, the 6th lens 144 can be used to the light loss in reduction system.
In under this configuration, the first light element 124 can include at least one reflecting interface so that the first light element 124
It can pass through reflecting interface and make to penetrate at least 90 degree of light beam T deviations.For example, in present embodiment, the first light element 124 can be wrapped
Containing two reflecting interfaces I2 and I3, and this two reflecting interface I2 and I3 are all-trans positioned at the first of the first reflector element 146 respectively
Penetrate the second total reflection prism 152 of the reflector element 148 of prism 150 and second so that the first light element 124 can pass through two instead
Firing area face I2 and I3 and make to penetrate light beam T deviation 180 degrees.In other words, through mirror wheel 122 the direct of travel for penetrating light beam T with
Sequentially from the direct of travel for penetrating light beam T after the first reflector element 146 and the reflection of the second reflector element 148 it is opposite (that is, two
Person can differ 180 degree).
Then, because the second reflector element 148 is optically coupled between the first reflector element 146 and the 3rd lens 138, therefore
Light beam T is penetrated sequentially in the first reflector element 146 and the second reflector element 148 from mirror wheel 122 into the first light element 124
After reflection, the 3rd lens 138 can be entered.3rd lens 138 have focal plane P2, wherein the 3rd lens 138 can will come from second
The light beam T that penetrates of reflector element 148 converges to its focal plane P2, and makes to penetrate light beam T and go out toward the first of the second projection lens 114
Penetrate pupil 116 (see the 1st figure) traveling.In other words, the first light element 124 can pass through the guiding of the 3rd lens 138 and penetrate light beam
T, makes it into the first emergent pupil 116 (see Fig. 1) of the second projection lens 114, such as shown in Fig. 1 light beam L '.
It is the reflected beams R of Fig. 1 light source module 100 light path schematic diagram please to see Fig. 5, Fig. 5 again.The light that Fig. 5 is painted
Road is using the side of the first lens 120 as starting point.Be the same as those described above, light beam L can pass through in the second time second area Z2 (see
Fig. 3) reflected from mirror wheel 122, and as the reflected beams R.Here, " light beam that the reflected beams R " reflects for finger from mirror wheel 122, and
Light beam is illustrated in from after the reflection of mirror wheel 122 with the lines of different patterns.
Second light element 126 sets to receive and be directed through the reflected beams R of the first lens 120.In other words, from mirror
The reflected beams R of the reflection of wheel 122 can enter second guide-lighting single after sequentially by the 4th light element 130 and the first lens 120
Member 126.Second light element 126 includes the second speculum 134.First lens 120 can be optically coupled to mirror wheel 122 and second anti-
Penetrate between mirror 134, and the second speculum 134 can be optically coupled to the first lens 120 and the second projection lens 114 (see Fig. 1)
Between.Second speculum 134 has reflecting interface I4, and the optical axis A1 of reflecting interface I4 bearing of trend and the first lens 120
Angle, θ is pressed from both sides, wherein angle, θ is between 30 degree to 60 degree.For example, in present embodiment, reflecting interface I4 extension side
It can be 45 degree to the angle, θ between the optical axis A1 of the first lens 120.In addition, the optical axis A1 of the first lens 120 can fall within
Among the focal plane P2 of three lens 138.In order to not make diagram excessively complicated, the optical axis A1 and the 3rd lens 138 of the first lens 120
Focal plane P2 represented with same dotted line.
First lens 120 have focal plane P1, and the first lens 120 can be by the reflected beams R from the 4th light element 130
Its focal plane P1 is converged to, and the focal plane P1 of the first lens 120 is orthogonal with the focal plane P2 of the 3rd lens 138.It is anti-in second
Penetrate under the configuration that the angle between the reflecting interface I4 of mirror 134 bearing of trend and the optical axis A1 of the first lens 120 is 45 degree, the
The reflecting interface I4 of two-mirror 134 bearing of trend can divide the focal plane P1 of the first lens 120 and Jiao of the 3rd lens 138 equally
Angle between plane P2.
Because the first lens 120 are optically coupled between the speculum 134 of mirror wheel 122 and second, therefore received by the first lens 120
Holding back to its focal plane P1 the reflected beams R can advance toward the second speculum 134, and be reflected from the second speculum 134.It is anti-in second
Penetrate under the configuration that the angle between the reflecting interface I4 of mirror 134 bearing of trend and the optical axis A1 of the first lens 120 is 45 degree, lead to
Cross the reflected beams R of the first lens 120 direct of travel and the reflected beams R ' reflected by the second speculum 134 direct of travel
Vertically (that is, both meetings differ 90 degree).
Then, because the second speculum 134 is optically coupled to the first lens 120 and the second projection lens 114 (see Fig. 1)
Between, therefore the second light element 126 can pass through the reflecting interface I4 of the second speculum 134, guides the reflected beams R, becomes
The reflected beams R ', and enter the second emergent pupil 118 (see Fig. 1) of the second projection lens 114, such as shown in Fig. 1 light beam L ".
In addition, Fig. 4 the reflected beams R ' for penetrating light beam T and Fig. 5 respectively can be guide-lighting by the first light element 124 and second
Unit 126 is directed to the same side of the first lens 120.In other words, it is in the first lens 120 to penetrate light beam T and the reflected beams R '
The same side, respectively enter the first emergent pupil 116 and the second emergent pupil 118 of the second projection lens 114.
Through above-mentioned configuration, light source module can pass through light guide module and the light beam that light source cell is provided switched into penetrate light
Beam and the reflected beams, and export this and penetrate light beam and the reflected beams, as shown in fig. 6, wherein Fig. 6 is same for Fig. 1 light source module 100
When the reflected beams R is provided and light beam T schematic diagram is penetrated.In order to not make accompanying drawing excessively complicated, light source cell 102 (see Fig. 1)
Have no and be illustrated among Fig. 6.In addition, the combination for the lens and speculum that present embodiment is painted is only to illustrate, belonging to the present invention
Technical staff in technical field, elastic can adjust the light path for penetrating light beam T or the reflected beams R.
On the other hand, in the second speculum 134 reflecting interface I4 bearing of trend and the first lens 120 optical axis A1 it
Between angle under 45 degree of configuration, optical axis A1, the optical axis A2 of the 3rd lens 138 and the second speculum 134 of the first lens 120
Edge can at least meet at a bit.Through this configuration, its focal plane P1 is converged to (with the 3rd lens 138 by the first lens 120
Optical axis A2 is represented with same dotted line) the reflected beams R, can be reflected through the second speculum 134, and be transferred to it is the 3rd saturating
The focal plane P2 of mirror 138 (represents) copline with the optical axis A1 of the first lens 120 with same dotted line.Therefore, thrown for second
For shadow camera lens 114, light beam T and the reflected beams are penetrated by what the first light element 124 and the second light element 126 were guided respectively
R is converged on same plane.
By this configuration, the difference penetrated between light beam T and the reflected beams R for marching to the second projection lens 114 can quilt
Reduce, so as to making the first emergent pupil 116 and the penetrate light of the second emergent pupil 118 respectively by the second projection lens 114
Beam T and the reflected beams R ' can have identical characteristic.For example, passing through the first emergent pupil 116 of the second projection lens 114 and
Two emergent pupils 118 penetrate light beam T and the reflected beams R ' and can have identical direct of travel.
In summary, light source module of the invention includes light source cell, light element, the first projection lens and the second projection
Camera lens, wherein light element include the first lens, mirror wheel, the first light element, the second light element.Light source module can pass through mirror
The light beam that wheel is provided light source cell, which is switched to, penetrates light beam and the reflected beams.Mirror wheel can make the light beam that light source cell is provided
Turn into the very first time and penetrate light beam, and the light beam that light source cell is provided is turned into the reflected beams in the second time.First leads
Light unit and the second light element can will penetrate light beam respectively and the reflected beams are directed to the first emergent light of the second projection lens
Pupil and the second emergent pupil, wherein the first emergent pupil and the second emergent pupil project to be arranged into a row so as to lifting second
The synthesis area of first emergent pupil and the second emergent pupil in camera lens.Synthesis area is the incident light of the first projection lens 110
Twice of pupil 112.Therefore, the etendue that the second projection lens 114 is provided is the light source cell that the first projection lens 110 receives
Twice of 102 etendue.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Various corresponding changes and deformation, but these corresponding changes and change ought can be made according to the present invention by knowing those skilled in the art
Shape should all belong to the protection domain of appended claims of the invention.
Claims (12)
1. a kind of light source module, it is characterised in that include：
One light source cell, to provide a light beam；
One first projection lens, with an entrance pupil, and the light beam that the light source cell is provided is logical through the entrance pupil
Cross first projection lens；
One first lens, wherein first projection lens are optically coupled between the light source cell and first lens；
One mirror wheel, wherein first lens are set so that the light beam is directed into the mirror wheel, and the light beam penetrates this in a very first time
Mirror wheel, and light beam is penetrated as one, the light beam reflexes to first lens in one second time in the mirror wheel, and as a reflection
Light beam, the wherein very first time are different from second time；
One first light element, setting penetrates light beam to guide this；
One second light element, sets to be directed through the reflected beams of first lens, wherein first light element and
Second light element guides this and penetrates light beam and the reflected beams to the same side of first lens respectively；And
One second projection lens, sets and penetrates light beam and the reflected beams to receive this, and with one first emergent pupil and one
Second emergent pupil, and first emergent pupil and second emergent pupil setting, to be arranged into a row, wherein this penetrates light beam
Pass through second projection lens through first emergent pupil and second emergent pupil respectively with the reflected beams.
2. light source module as claimed in claim 1, it is characterised in that first lens, the mirror wheel, first light element with
Second light element is optically coupled between first projection lens and second projection lens.
3. light source module as claimed in claim 1, it is characterised in that first emergent pupil and second emergent pupil its
In any area it is identical with the area of the entrance pupil.
4. light source module as claimed in claim 1, it is characterised in that the light source cell is included：
One optical transmitting set, to provide the light beam；
One numerical digit microreflection mirror element；And
One the 3rd light element, is optically coupled between the optical transmitting set and the numerical digit microreflection mirror element, that will come from
The light beam of the optical transmitting set is directed on the numerical digit microreflection mirror element, and will be reflected from the numerical digit microreflection mirror element
The light beam be directed to first projection lens.
5. light source module as claimed in claim 1, it is characterised in that also comprising one the 4th light element, the 4th is guide-lighting single
Member is included：
One first speculum, is optically coupled between first lens and the mirror wheel, to by the light from first lens
Beam is directed to the mirror wheel；And
One second lens, are optically coupled between first speculum and the mirror wheel, to by from first speculum should
Light beam converges to the mirror wheel.
6. light source module as claimed in claim 1, it is characterised in that first light element includes an at least reflecting interface,
And first light element makes this penetrate at least 90 degree of light beam deviation through the reflecting interface.
7. light source module as claimed in claim 1, it is characterised in that first light element comprising one first reflector element,
One second reflector element and one the 3rd lens, wherein second reflector element are optically coupled to first reflector element and the 3rd
Between lens, and through the mirror wheel this penetrate light beam sequentially in first reflector element and second reflector element reflection after,
Into the 3rd lens, wherein first light element guides this through the 3rd lens and penetrates light beam to first emergent light
Pupil.
8. light source module as claimed in claim 7, it is characterised in that it is flat that the reflected beams are converged to its Jiao by first lens
Face, the 3rd lens by the penetrate light beam convergence to its focal plane, and Jiao of the focal plane of first lens and the 3rd lens
Plane is orthogonal.
9. light source module as claimed in claim 8, it is characterised in that second light element includes one second speculum, should
Second speculum has a reflecting interface, and the bearing of trend of the reflecting interface divides the focal planes and the 3rd of first lens equally
It is anti-that angle between the focal plane of lens, wherein second light element guide this through the reflecting interface of second speculum
Irradiating light beam is to second emergent pupil.
10. light source module as claimed in claim 9, it is characterised in that the optical axis of first lens, the optical axis of the 3rd lens
At least met at a bit with the edge of second speculum.
11. light source module as claimed in claim 1, it is characterised in that second light element includes one second speculum, should
Second speculum has a reflecting interface, and the optical axis of the bearing of trend of the reflecting interface and first lens is positioned at an angle, should
Angle between 30 degree to 60 degree, wherein second light element through the reflecting interface guide the reflected beams to this second
Emergent pupil.
12. light source module as claimed in claim 1, it is characterised in that the mirror wheel has an at least first area and at least one
Second area, the first area penetrates light beam to make the light beam be penetrated in the very first time and turn into this, and the second area is used
So that the light beam returns first lens and as the reflected beams in second time reflex, and the area of the first area is with being somebody's turn to do
The area ratio of second area is between 0.5 to 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237004.0A CN107300824B (en) | 2016-04-15 | 2016-04-15 | Light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237004.0A CN107300824B (en) | 2016-04-15 | 2016-04-15 | Light source module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107300824A true CN107300824A (en) | 2017-10-27 |
| CN107300824B CN107300824B (en) | 2019-11-12 |
Family
ID=60136770
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610237004.0A Expired - Fee Related CN107300824B (en) | 2016-04-15 | 2016-04-15 | Light source module |
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| Country | Link |
|---|---|
| CN (1) | CN107300824B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2707444B1 (en) * | 1993-07-05 | 1995-08-18 | Thomson Csf | Liquid crystal video projector. |
| WO1999023520A1 (en) * | 1997-10-31 | 1999-05-14 | Silicon Light Machines, Inc. | Display apparatus including grating light-valve array and interferometric optical system |
| JP3501963B2 (en) * | 1997-12-22 | 2004-03-02 | シャープ株式会社 | Projection type image display device |
| JP2004151657A (en) * | 2002-11-01 | 2004-05-27 | Seiko Epson Corp | Projector and optical apparatus |
| CA2941306A1 (en) * | 2014-03-03 | 2015-09-11 | Eyeway Vision Ltd. | Eye projection system |
-
2016
- 2016-04-15 CN CN201610237004.0A patent/CN107300824B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2707444B1 (en) * | 1993-07-05 | 1995-08-18 | Thomson Csf | Liquid crystal video projector. |
| WO1999023520A1 (en) * | 1997-10-31 | 1999-05-14 | Silicon Light Machines, Inc. | Display apparatus including grating light-valve array and interferometric optical system |
| JP3501963B2 (en) * | 1997-12-22 | 2004-03-02 | シャープ株式会社 | Projection type image display device |
| JP2004151657A (en) * | 2002-11-01 | 2004-05-27 | Seiko Epson Corp | Projector and optical apparatus |
| CA2941306A1 (en) * | 2014-03-03 | 2015-09-11 | Eyeway Vision Ltd. | Eye projection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107300824B (en) | 2019-11-12 |
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