CN114326133A - Optical system and display device - Google Patents
Optical system and display device Download PDFInfo
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- CN114326133A CN114326133A CN202011049175.3A CN202011049175A CN114326133A CN 114326133 A CN114326133 A CN 114326133A CN 202011049175 A CN202011049175 A CN 202011049175A CN 114326133 A CN114326133 A CN 114326133A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 143
- 239000000463 material Substances 0.000 claims abstract description 170
- 238000006243 chemical reaction Methods 0.000 claims abstract description 160
- 238000007493 shaping process Methods 0.000 claims abstract description 28
- 230000005284 excitation Effects 0.000 claims description 63
- 239000012141 concentrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 18
- 239000003086 colorant Substances 0.000 description 5
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
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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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Abstract
The invention discloses an optical system, wherein a wavelength conversion material can at least generate excited light which is emitted towards two sides of the wavelength conversion material respectively under the irradiation of exciting light, and a shaping component is used for adjusting the exciting light to enable light spots irradiated on the wavelength conversion material to meet preset requirements, so that the wavelength conversion material can be excited according to requirements. The first optical element is arranged on one side of the wavelength conversion material, can transmit the exciting light and reflect the excited light generated by the wavelength conversion material and emitted towards the first side, so that the part of the light is transmitted by the wavelength conversion material and then propagates towards the other side. Therefore, the light emitted towards two sides respectively generated by the wavelength conversion material can be utilized, and the two parts of light are guided and emitted to be output light, so that the light utilization rate is improved, and the brightness of the output light can be improved. The invention also discloses a display device.
Description
Technical Field
The present invention relates to the field of optical systems, and in particular, to an optical system. The invention also relates to a display device.
Background
The application of display devices in various fields is becoming more and more extensive, wherein the brightness index is one of the important indexes of display devices, and in order to make the display devices have better display performance and improve the brightness of the display devices, the technical subject of constant search and continuous improvement is the technical subject of technical research and continuous improvement of technicians in the field.
Disclosure of Invention
The purpose of the present invention is to provide an optical system capable of increasing the brightness of output light and satisfactorily exciting a wavelength conversion material. The invention also provides a display device.
In order to achieve the purpose, the invention provides the following technical scheme:
an optical system includes a wavelength conversion material for generating at least an excited light emitted toward both sides of the wavelength conversion material under irradiation of an excitation light;
the shaping component is used for adjusting exciting light so that light spots irradiated to the wavelength conversion material meet preset requirements;
the first optical element is arranged on one side of the wavelength conversion material and used for transmitting the exciting light and reflecting the excited light generated by the wavelength conversion material and emitted towards the side.
Preferably, the shaping component is specifically configured to converge and inject the excitation light into the wavelength conversion material, and make the light intensity of the light spot irradiated to the wavelength conversion material uniform.
Preferably, the shaping component includes any one or a combination of any plurality of positive, negative, convex, concave, or plano-convex lenses.
Preferably, the light source further includes a first light-combined portion, and the excitation light is a combined light formed by at least two lights via the first light-combined portion.
Preferably, the excitation light is incident from the first optical element side, is transmitted through the first optical element, and is irradiated to the wavelength conversion material, or is incident from the wavelength conversion material side away from the first optical element to the wavelength conversion material.
Preferably, the first excitation light is incident from the first optical element side, is transmitted through the first optical element, and is irradiated to the wavelength conversion material, and the second excitation light is incident from the wavelength conversion material side away from the first optical element to the wavelength conversion material.
Preferably, the excitation light is incident on the wavelength conversion material from a side of the wavelength conversion material away from the first optical element, and the optical device further includes a second optical element disposed on a side of the wavelength conversion material away from the first optical element, the second optical element being configured to separate the excitation light from the stimulated light emitted toward the first side and generated by the wavelength conversion material and emit the separated stimulated light.
Preferably, the wavelength conversion device further comprises a second light-combining part, and the second light-combining part is used for combining the emergent light of the wavelength conversion material with at least one path of other light.
Preferably, the optical module further comprises a third optical element, the emergent light of the wavelength conversion material, the second path of light and the third path of light are respectively incident to the third optical element from different directions, and the third optical element is used for converging the emergent light of the wavelength conversion material, the second path of light and the third path of light.
Preferably, the third optical element has an "X" shape, the space is divided into four regions, the light emitted from the wavelength conversion material, the second light, and the third light are incident on the third optical element from the first region, the second region, and the third region, respectively, and the combined light is emitted from the fourth region.
Preferably, the third optical element includes a first filter element, a second filter element, and a third filter element, the first filter element and the second filter element being respectively disposed at both sides of the third filter element, and arranged in an "X" shape;
the first filter element is used for transmitting the emergent light of the wavelength conversion material and the second path of light and reflecting the third path of light, the second filter element is used for transmitting the emergent light of the wavelength conversion material and reflecting the third path of light, and the third filter element is used for reflecting the second path of light and transmitting the emergent light of the wavelength conversion material and the third path of light.
A display device comprising the optical system described above.
According to the technical scheme, the optical system provided by the invention has the advantages that the wavelength conversion material can at least generate the excited light which is emitted towards two sides of the wavelength conversion material respectively under the irradiation of the exciting light, and the shaping component is used for adjusting the exciting light, so that the light spot irradiated to the wavelength conversion material meets the preset requirement, and the wavelength conversion material can be excited according to the requirement. The first optical element is arranged on one side of the wavelength conversion material, can transmit the exciting light and reflect the excited light generated by the wavelength conversion material and emitted towards the first side, so that the part of the light is transmitted by the wavelength conversion material and then propagates towards the other side. Therefore, the light emitted towards two sides respectively generated by the wavelength conversion material can be utilized, and the two parts of light are guided and emitted to be output light, so that the light utilization rate is improved, and the brightness of the output light can be improved.
The display device provided by the invention can achieve the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an optical system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an optical system according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of an optical system according to yet another embodiment of the present invention;
FIG. 4 is a schematic diagram of an optical system according to yet another embodiment of the present invention;
FIG. 5 is a schematic diagram of an optical system according to yet another embodiment of the present invention;
FIG. 6 is a schematic diagram of an optical system according to yet another embodiment of the present invention;
FIG. 7 is a schematic diagram of a system for generating excitation light according to an embodiment of the invention;
FIG. 8 is a schematic diagram of an optical system according to yet another embodiment of the present invention;
fig. 9 is a schematic diagram of an optical system according to yet another embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides an optical system, which comprises a wavelength conversion material, a shaping component and a first optical element, wherein the wavelength conversion material is used for generating at least excited light which is emitted towards two sides of the wavelength conversion material respectively under the irradiation of exciting light;
the shaping component is used for adjusting exciting light so that light spots irradiated to the wavelength conversion material meet preset requirements;
the first optical element is arranged on one side of the wavelength conversion material and used for transmitting the exciting light and reflecting the excited light generated by the wavelength conversion material and emitted towards the side.
The wavelength conversion material is a material that emits light of a predetermined wavelength when irradiated with excitation light. The wavelength conversion material is preferably distributed in a layered manner, so that the situation that the light generated by the material is excited transversely propagates in the material to cause the reduction of the luminous power density can be reduced, and the light can be more easily transmitted through the wavelength conversion material.
The first optical element can reflect the stimulated light generated by the wavelength conversion material, can reflect the stimulated light generated by the wavelength conversion material and emitted towards the side, and can enable the part of light to transmit through the wavelength conversion material and then propagate towards the other side, so that the light generated by the wavelength conversion material under the irradiation of exciting light and emitted and propagated towards the two sides of the wavelength conversion material respectively finally propagates towards the same side, the light emitted by the wavelength conversion material and emitted towards the two sides respectively can be utilized, the two parts of light are guided and emitted to be output light, the light utilization rate is improved, and the brightness of the output light can be improved.
Referring to fig. 1, fig. 1 is a schematic diagram of an optical system according to an embodiment, in which the optical system includes a wavelength conversion material 100, a shaping component 102, and a first optical element 101. The excitation light 1 enters from the first optical element 101 side, and is transmitted through the first optical element 101 to irradiate the wavelength conversion material 100, and the wavelength conversion material 100 generates the excited light 2 and 3 respectively emitted toward both sides of the wavelength conversion material 100 under irradiation of the excitation light 1.
Wherein the excitation light 1 is irradiated to the wavelength conversion material 100 through the shaping member 102, and the shaping member 102 adjusts the excitation light 1 so that the light spot irradiated to the wavelength conversion material 100 satisfies the preset requirement. In practical applications, the shaping component may be arranged according to the actual excitation requirement of the wavelength conversion material 100, and optionally, the shaping component 102 may adjust the spot shape, the spot size, or the divergence angle of the excitation light, or may optimize the brightness uniformity of the excitation light spot according to the requirement.
Optionally, the shaping component 102 may be specifically configured to converge the excitation light to be incident on the wavelength conversion material 100, and make the light intensity of the light spot irradiated to the wavelength conversion material 100 uniform. In this way, the shaping member 102 can collect light emitted from the light source to effectively utilize as much light as possible, and prevent the wavelength conversion material from being damaged due to energy spikes of light spots irradiated on the wavelength conversion material, so that the excitation efficiency can be improved and the service life of the wavelength conversion material can be prolonged.
Optionally, the shaping component 102 may adjust the excitation light in a transmissive manner, and the shaping component 102 may include any one or a combination of any more of a positive lens, a negative lens, a convex lens, a concave lens, or a plano-convex lens, but is not limited thereto, and the shaping component 102 may also adopt other structures. The shaping member may adjust the excitation light by reflection, and the shaping member may include a curved reflecting surface.
As shown in fig. 1, the first optical element 101 is provided on one side of the wavelength conversion material 100, reflects the received laser light 2 generated by the wavelength conversion material 100 and emitted toward the opposite side back to the wavelength conversion material 100, and transmits the light through the wavelength conversion material 100 and propagates toward the other side of the wavelength conversion material 100.
Preferably, the first optical element 101 may be provided in a shape that is advantageous for collecting light generated by the wavelength conversion material 100, so that as much of the excited light that is emitted toward the present side and propagates is reflected back to the wavelength conversion material 100 as possible. Referring to fig. 2, fig. 2 is a schematic diagram of an optical system according to another embodiment, wherein a reflection surface of the first optical element 101 is a curved surface, so that the laser beam 2 generated by the wavelength conversion material 100 and emitted and propagated toward the opposite side is reflected by the first optical element 101 and then converged on the wavelength conversion material 100. Therefore, the excited light which is transmitted and emitted towards the side is effectively collected and converged, the light loss is reduced, and the output light brightness is improved.
In the optical system shown in fig. 1 or fig. 2, the excitation light 1 is irradiated to the wavelength conversion material 100 by transmitting through the first optical element 101, but in other embodiments, the invention is not limited thereto, and the excitation light may be irradiated to the wavelength conversion material 100 from the side where the first optical element 101 is located by other means or other types of optical paths, and the invention is also within the protection scope of the invention.
Referring to fig. 3, fig. 3 is a schematic diagram of an optical system according to yet another embodiment, wherein a first optical element 101 is disposed on a side of a wavelength conversion material 100, and an excitation light 1 is incident on the wavelength conversion material 100 from a side of the wavelength conversion material 100 away from the first optical element 101. The wavelength converting material 100 generates lights 2 and 3 respectively emitted toward both sides of the wavelength converting material 100 under irradiation of the excitation light 1. The first optical element 101 reflects the received laser light 2 emitted to the first side generated by the wavelength conversion material 100 back to the wavelength conversion material 100, and transmits the light through the wavelength conversion material 100 to propagate toward the other side of the wavelength conversion material 100. The shaping section 102 adjusts the excitation light 1 so that the spot irradiated to the wavelength converting material 100 satisfies a preset requirement.
In the optical system shown in fig. 3, the stimulated light 3 and 2 generated by the wavelength conversion material 100 finally propagates toward the side where the excitation light 1 is located, and in order to separate the stimulated light from the excitation light, the optical system may include a second optical element through which the stimulated light is separated from the excitation light and the stimulated light is guided to be emitted. Referring to fig. 4, fig. 4 is a schematic diagram of an optical system according to yet another embodiment, wherein a first optical element 101 and a second optical element 103 are respectively disposed on two sides of a wavelength conversion material 100, an excitation light 1 enters from one side of the second optical element 103, and is transmitted through the second optical element 103 and then irradiates the wavelength conversion material 100, and stimulated light 3 and 2 generated by the wavelength conversion material 100 is reflected by the second optical element 103, so that the stimulated light 3 and 2 are separated from the excitation light 1 to form an emergent light.
Alternatively, the exciting light 1 may be incident from one side of the second optical element, the second optical element reflects the exciting light and transmits the stimulated light generated by the wavelength conversion material, the exciting light 1 is reflected by the second optical element and irradiates the wavelength conversion material 100, and the stimulated light 3 and 2 generated by the wavelength conversion material 100 propagating to the opposite side is emitted by transmitting the second optical element, so that the stimulated light 3 and 2 is separated from the exciting light 1 to form the emergent light. In other embodiments, the second optical element may separate the excited light propagating toward the first side from the excitation light by other means, and is also within the scope of the present invention.
Further preferably, in the optical system, the wavelength conversion material is irradiated with multiple excitation lights incident from different directions, so that the wavelength conversion material generates the excited light. Referring to fig. 5, fig. 5 is a schematic diagram of an optical system according to yet another embodiment, and it can be seen that a first excitation light 1 is irradiated to a wavelength conversion material 100 from one side of the wavelength conversion material 100, and a second excitation light 4 is irradiated to the wavelength conversion material 100 from the other side of the wavelength conversion material 100. Specifically, in the optical system shown in fig. 5, the first excitation light 1 is incident from the first optical element 101 side, is transmitted through the first optical element 101, and is irradiated to the wavelength converting material 100, and the second excitation light 4 is irradiated to the wavelength converting material 100 from the side of the wavelength converting material 100 remote from the first optical element 101. Here, the shaping unit 102 adjusts the first excitation light 1 so that the spot of the first excitation light 1 irradiated on the wavelength conversion material 100 satisfies the requirement, and the shaping unit 104 adjusts the second excitation light 4 so that the spot of the second excitation light 4 irradiated on the wavelength conversion material 100 satisfies the requirement.
In other embodiments, the above embodiments are not limited, and it is within the scope of the present invention that the first excitation light is irradiated to the wavelength conversion material from one side where the first optical element is located, and the second excitation light is irradiated to the wavelength conversion material from the other side through other ways or other types of optical paths.
Therefore, the optical system of the present embodiment can irradiate the wavelength conversion material with multiple paths of excitation light incident from different directions, and excite the wavelength conversion material to generate excited light, thereby further improving the light conversion efficiency of the wavelength conversion material, enabling the wavelength conversion material to generate more light, and improving the brightness of output light.
In the above embodiments, the wavelength conversion material 100 may employ, but is not limited to, phosphor.
Optionally, the optical system may further include a first light-combining portion, and the excitation light is a combined light formed by at least two lights by means of the first light-combining portion. Referring to fig. 6, fig. 6 is a schematic diagram of an optical system according to another embodiment, wherein the optical system further includes a first light-combining portion 105, the first light path 10 and the second light path 11 respectively enter the first light-combining portion 105, and the two light paths are combined to form an excitation light 1 through the first light-combining portion 105. The optical system shown in fig. 6 is described by taking an example of forming the excitation light 1 by merging two paths of light, and in practical applications, the optical system is not limited to synthesizing the excitation light by only two paths of light, and a suitable light merging manner can be adopted, and a corresponding number of paths of light are merged to form the excitation light, which is within the protection scope of the present invention. The optical system adopts a light combination mode to form exciting light, so that the brightness of the exciting light can be improved, the wavelength conversion material can be excited to generate more light, and the output light brightness of the optical system is improved.
In practical applications, the multiple light beams used for synthesizing the excitation light may be multiple light beams with the same wavelength band, or multiple light beams with different wavelength bands, and if the wavelength bands of the multiple light beams are different, the narrow-band light beams are preferably adopted, so that the wavelength band range of the synthesized excitation light is narrow, and the wavelength conversion material can be effectively excited.
If the emitting angle of the emitting light of the light emitting source is large, the emitting light of the light emitting source can be collimated and then combined by the optical assembly. Referring to fig. 7, fig. 7 is a schematic diagram of a system for forming excitation light according to an embodiment, in which a first light source 201 and a second light source 202 respectively emit a first path of light and a second path of light, a first optical element 203 is used for collimating emergent light of the first light source 201, and a second optical element 204 is used for collimating emergent light of the second light source 202. The processed two paths of light are combined by the first light combining part 105, the combined and output light is converged by the shaping member 102 to form the excitation light 1, and the excitation light 1 can be irradiated to the wavelength conversion material.
Further, the optical system may further include a second light-combining portion, where the second light-combining portion is configured to combine the outgoing light of the wavelength conversion material with at least one path of other light. In display devices, it is often necessary to combine the tricolor light into illumination light for display purposes. For example, referring to fig. 8, fig. 8 is a schematic diagram of an optical system according to another embodiment, where the optical system further includes a second light-combining portion 106 and a third light-combining portion 107, the second light-combining portion 106 is used for combining the outgoing light and the incoming light 5 of the wavelength conversion material 100 to form a combined light output, and the third light-combining portion 107 is used for combining the outgoing light and the incoming light 6 of the second light-combining portion 106 to form a combined light output, so that the wavelength conversion material 100 generates the combined light of the incoming light 5 and the incoming light 6. In practical applications, the wavelength conversion material 100 generates light, and the incident light 5 and the incident light 6 may respectively correspond to tricolor light.
The optical system of the embodiment is applied to the combination of three primary colors, wherein one primary color light is generated by exciting the wavelength conversion material, the lights emitted by the wavelength conversion material and respectively emitted towards two sides are utilized, and the two parts of lights are guided and emitted to form the primary color light, so that the light utilization rate is improved, and the output light brightness after the light combination can be improved.
Further, the optical system may further include a third optical element, where the outgoing light of the wavelength conversion material, the second path of light, and the third path of light are incident to the third optical element from different directions, respectively, and the third optical element is configured to combine the outgoing light of the wavelength conversion material, the second path of light, and the third path of light. Alternatively, the third optical element may have an X shape, the space is divided into four regions, the outgoing light, the second light, and the third light of the wavelength conversion material are incident on the third optical element from the first region, the second region, and the third region, respectively, and the combined light is emitted from the fourth region.
Referring to fig. 9, fig. 9 is a schematic diagram of an optical system according to another embodiment, where the optical system further includes a third optical element, and the outgoing light of the wavelength conversion material 100, the second light path 5, and the third light path 6 are incident to the third optical element from different directions, respectively. Specifically, the third optical element includes a first filter element 108, a second filter element 109, and a third filter element 110, and the first filter element 108 and the second filter element 109 are respectively disposed on both sides of the third filter element 110, arranged in an "X" shape.
The second light 5 enters the third filter element 110 and the first filter element 108 from a first area, which is a space between the third filter element 110 and the first filter element 108, the outgoing light of the wavelength conversion material 100 enters the second filter element 109 and the third filter element 110 from a second area, which is a space between the third filter element 110 and the second filter element 109, the third light 6 enters the third filter element 110 and the second filter element 109 from another space between the third filter element 110 and the second filter element 109, which is a third area, and the combined light is emitted from another space between the first filter element 108 and the third filter element 110, which is a fourth area.
The first filter element 108 is configured to transmit the outgoing light of the wavelength conversion material 100 and the second path of light 5 and reflect the third path of light 6, the second filter element 109 is configured to transmit the outgoing light of the wavelength conversion material 100 and reflect the third path of light 6, and the third filter element 110 is configured to reflect the second path of light 5 and transmit the outgoing light of the wavelength conversion material 100 and the third path of light 6.
In the present embodiment, the first filter element 108 and the third filter element 110 may be perpendicular to each other, the second filter element 109 and the third filter element 110 may be perpendicular to each other, and the incident angles of the respective beams may be 45 degrees.
In practical applications, the emergent light of the wavelength conversion material 100, the second path of light 5 and the third path of light 6 may respectively correspond to three primary colors of light.
The optical system of the embodiment is applied to the combination of three primary colors, wherein one primary color light is generated by exciting the wavelength conversion material, wherein the lights emitted by the wavelength conversion material and respectively emitted towards two sides are utilized, and the two parts of lights are guided and emitted to form the emergent light of the primary color light, so that the light utilization rate is improved, and the output light brightness after the light combination can be improved.
Correspondingly, the embodiment of the invention also provides a display device which comprises the optical system.
The display device of this embodiment adopts the above-mentioned optical system, and the wavelength conversion material in the optical system can produce the laser beam that receives that emits towards wavelength conversion material both sides respectively at least under the irradiation of exciting light, and the shaping component is used for adjusting the exciting light, makes the facula that shines wavelength conversion material satisfy preset the requirement to make can accord with the excitation wavelength conversion material of requirement. The first optical element is arranged on one side of the wavelength conversion material, can transmit the exciting light and reflect the excited light generated by the wavelength conversion material and emitted towards the first side, so that the part of the light is transmitted by the wavelength conversion material and then propagates towards the other side. Therefore, the light emitted towards two sides respectively generated by the wavelength conversion material can be utilized, and the two parts of light are guided and emitted to be output light, so that the light utilization rate is improved, and the brightness of the output light can be improved.
In the display device of the present embodiment, the display is realized by using three primary colors, and any one of the three primary colors can be emitted by using the optical system.
The optical system and the display device provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (12)
1. An optical system is characterized by comprising a wavelength conversion material, a shaping component and a first optical element, wherein the wavelength conversion material is used for generating at least excited light which is emitted towards two sides of the wavelength conversion material respectively under the irradiation of exciting light;
the shaping component is used for adjusting exciting light so that light spots irradiated to the wavelength conversion material meet preset requirements;
the first optical element is arranged on one side of the wavelength conversion material and used for transmitting the exciting light and reflecting the excited light generated by the wavelength conversion material and emitted towards the side.
2. The optical system according to claim 1, wherein the shaping component is specifically configured to concentrate the excitation light to be incident on the wavelength conversion material and to make the intensity of the light spot irradiated to the wavelength conversion material uniform.
3. The optical system of claim 1, wherein the shaping component comprises any one or a combination of any plurality of positive, negative, convex, concave, or plano-convex lenses.
4. The optical system according to claim 1, further comprising a first light-combining portion, wherein the excitation light is a combined light formed by at least two lights by means of the first light-combining portion.
5. The optical system according to claim 1, wherein the excitation light is incident from a side of the first optical element, is transmitted through the first optical element, and is irradiated to the wavelength conversion material, or wherein the excitation light is incident from a side of the wavelength conversion material away from the first optical element to the wavelength conversion material.
6. The optical system according to claim 1, wherein first excitation light is incident from the first optical element side, is transmitted through the first optical element, and is irradiated to the wavelength conversion material, and wherein second excitation light is incident from the wavelength conversion material side remote from the first optical element to the wavelength conversion material.
7. The optical system according to claim 1, wherein the excitation light is incident on the wavelength conversion material from a side of the wavelength conversion material remote from the first optical element, and further comprising a second optical element provided on a side of the wavelength conversion material remote from the first optical element, the second optical element being configured to separate excitation light from the excited light emitted toward the side and generated by the wavelength conversion material.
8. An optical system according to any one of claims 1 to 7, further comprising a second light combining portion for combining outgoing light from the wavelength converting material with at least one other light.
9. The optical system according to any one of claims 1 to 7, further comprising a third optical element to which the outgoing light, the second light, and the third light of the wavelength converting material are incident from different directions, respectively, the third optical element being configured to combine the outgoing light, the second light, and the third light of the wavelength converting material.
10. The optical system according to claim 9, wherein the third optical element has an "X" shape, the space is divided into four regions, the outgoing light from the wavelength conversion material, the second light, and the third light are incident on the third optical element from the first region, the second region, and the third region, respectively, and the combined light is emitted from the fourth region.
11. The light combining light source device according to claim 10, wherein the third optical element includes a first filter element, a second filter element, and a third filter element, and the first filter element and the second filter element are respectively disposed on two sides of the third filter element and arranged in an "X" shape;
the first filter element is used for transmitting the emergent light of the wavelength conversion material and the second path of light and reflecting the third path of light, the second filter element is used for transmitting the emergent light of the wavelength conversion material and reflecting the third path of light, and the third filter element is used for reflecting the second path of light and transmitting the emergent light of the wavelength conversion material and the third path of light.
12. A display device comprising an optical system according to any one of claims 1 to 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011049175.3A CN114326133A (en) | 2020-09-29 | 2020-09-29 | Optical system and display device |
| PCT/CN2021/106152 WO2022068315A1 (en) | 2020-09-29 | 2021-07-14 | Optical system and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011049175.3A CN114326133A (en) | 2020-09-29 | 2020-09-29 | Optical system and display device |
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| CN114326133A true CN114326133A (en) | 2022-04-12 |
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| CN202011049175.3A Pending CN114326133A (en) | 2020-09-29 | 2020-09-29 | Optical system and display device |
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| WO (1) | WO2022068315A1 (en) |
Citations (9)
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