CN111007670A - Optical assembly and electronic equipment - Google Patents
Optical assembly and electronic equipment Download PDFInfo
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- CN111007670A CN111007670A CN201911241617.1A CN201911241617A CN111007670A CN 111007670 A CN111007670 A CN 111007670A CN 201911241617 A CN201911241617 A CN 201911241617A CN 111007670 A CN111007670 A CN 111007670A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 154
- 238000012545 processing Methods 0.000 claims abstract description 71
- 238000003384 imaging method Methods 0.000 claims description 28
- 239000011521 glass Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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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
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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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
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
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Abstract
The invention discloses an optical component and an electronic device, the optical component includes: an optical machine; at least two image display elements arranged at the light outlet side of the light machine, wherein the at least two image display elements comprise a first image display element and a second image display element; the light path processing element is arranged between the light outlet of the optical machine and the image display element and rotates at a preset speed; under the condition that the optical path processing element rotates to a first projection state, the optical machine sends a first image, and the first image is projected on a first image display element after passing through the optical path processing element; and under the condition that the optical path processing element rotates to the second projection state, the optical machine sends a second image, and the second image is projected to a second image display element after passing through the optical path processing element. According to the embodiment of the invention, the image generated by one optical machine is projected on at least two image display elements alternately through the rotation of the optical path processing element, so that the cost of the optical assembly is saved, the power consumption of the product is reduced, and the problem that the optical assembly is difficult to dissipate heat is solved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an optical module and an electronic device.
Background
The positions of all devices in an optical module of the electronic equipment are relatively fixed, one optical machine is responsible for imaging one lens, such as AR (Augmented Reality) glasses and top-projection AR glasses, two optical machines are arranged at the top end of the lens in a horizontal manner, and light rays are respectively and vertically guided into the lens through two prisms; the side-throw AR glasses are characterized in that two groups of optical machines are respectively placed on two sides of the glasses, and images are directly projected and shot into two lenses respectively. Because every lens needs the ray apparatus that corresponds just can image, leads to whole optical module consumption too high, and the heat gathers soon, and the mainboard easily receives the interference of heat effect, and then influences host computer operating performance.
Disclosure of Invention
The invention provides an optical assembly and electronic equipment, and aims to solve the problem that the operation performance of a host is influenced due to serious heating of an existing optical module.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides an optical assembly, including:
an optical machine;
at least two image display elements arranged at the light outlet side of the light machine, the at least two image display elements comprising: a first image display element and a second image display element;
the light path processing element is arranged between the light outlet of the optical machine and the image display element and rotates at a preset speed;
the optical path processing element comprises a first projection state and a second projection state;
when the optical path processing element rotates to a first projection state, the optical machine sends a first image, and the first image is projected on a first image display element after passing through the optical path processing element;
when the optical path processing element is rotated to a second projection state, the optical machine transmits a second image, and the second image is projected on a second image display element after passing through the optical path processing element.
In a second aspect, the embodiment of the present invention further provides an electronic device, which includes the optical component described above.
In the embodiment of the present invention, the optical engine corresponds to at least two image display elements, and the image generated by the optical engine is alternately projected on the imaging planes of the at least two image display elements through the rotation of the optical path processing element. At least two image display elements share one optical machine, the cost of at least one set of optical components can be saved, the weight of equipment formed by the optical components is reduced, the power consumption of the product is greatly reduced, the problems of serious heating and difficult heat dissipation of the optical components are solved, and the running performance of a host is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of an optical assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an optical path processing element of a first prism according to an embodiment of the present invention;
FIG. 3 is a second schematic structural diagram illustrating an optical path processing element of a first prism according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the reflection and refraction process of an image in a first prism according to an embodiment of the present invention:
FIG. 5 is a schematic structural diagram of an optical path processing element of a reflective plate according to an embodiment of the present invention;
fig. 6 is a second schematic structural diagram of the optical path processing element of the embodiment of the invention being a reflector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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.
As shown in fig. 1, an embodiment of the present invention provides an optical assembly including:
an optical machine 1; at least two image display elements 2 arranged at the light exit side of the light engine 1, the at least two image display elements 2 comprising: a first image display element 21 and a second image display element 22; a light path processing element 3 disposed between the light exit 11 of the optical machine 1 and the image display element 2, the light path processing element 3 rotating at a predetermined speed; the image emitted from the light outlet 11 of the optical machine 1 is processed by the optical path processing element 3 and then projected to the at least two image display elements 2. The optical path processing element 3 can change the angle of the incident light so that it is projected accurately onto the imaging plane of the image display element 2.
The number of the image display elements 2 is at least two, and preferably, the number of the image display elements 2 is two, and includes a first image display element 21 and a second image display element 22. The image display element 2 may be a lens of AR glasses, a projection screen, or the like, which is capable of imaging a display original.
Wherein, the optical path processing element 3 comprises a first projection state and a second projection state; when the optical path processing element 3 is rotated to a first projection state, the optical engine 1 sends a first image, and the first image is projected on a first image display element 21 after passing through the optical path processing element 3; when the optical path processing element 3 is rotated to the second projection state, the optical engine 1 sends a second image, and the second image is projected on the second image display element 22 via the optical path processing element 3.
In this embodiment, the first projection state corresponds to a state where the optical path processing element 3 projects the first image emitted by the optical engine 1 onto the first image display element 21 of the at least two image display elements 2, and the first projection state corresponds to a first angle of rotation of the optical path processing element 3, which can ensure that the optical path processing element 3 accurately projects the first image onto the first image display element 21 when rotating to the first angle. Specifically, when the optical path processing element 3 is rotated to the first projection state, the optical engine 1 sends a first image, and the first image is projected on the first image display element 21 after passing through the optical path processing element 3.
The second projection state corresponds to a state in which the optical path processing element 3 projects the second image emitted by the optical engine 1 to the second image display element 22 of the at least two image display elements 2. The second projection state corresponds to a second angle of rotation of the optical path processing component 3, which can ensure that the optical path processing component 3 projects a second image onto the second image display component 22 accurately when rotating to the second angle. Specifically, when the optical path processing element 3 is rotated to the second projection state, the optical engine 1 sends a second image, and the second image is projected on the second image display element 22 via the optical path processing element 3.
In an embodiment of the present invention, the optical engine corresponds to at least two image display elements, and the image generated by the optical engine is alternately projected on the imaging planes of the at least two image display elements by the rotation of the optical path processing element. At least two image display elements share one optical machine, the cost of at least one set of optical components can be saved, the weight of equipment formed by the optical components is reduced, the power consumption of the product is greatly reduced, the problems of serious heating and difficult heat dissipation of the optical components are solved, and the running performance of a host is improved.
It should be noted that the optical path processing element 3 may be a prism or a reflector, and the following describes a specific structure and an imaging principle of the optical assembly by using a specific embodiment when the optical path processing element 3 is a prism; and, when the optical path processing element 3 is a reflector, the specific structure and imaging principle of the optical assembly.
Optionally, the optical path processing element 3 is a first prism 31; the first prism 31 is disposed on an extension line of the light outlet 11. The image emitted from the optical machine 1 is projected on the imaging plane of the image display element 2 through the first prism 31. The first prism 31 is arranged on an extension line of the light outlet 11, so that the first prism 31 can receive the image sent by the optical machine 1 to the maximum extent, and the integrity of the image is ensured. The first prism 31 can be flexibly designed according to the incident angle of the optical machine 1, the display angle of the image display element 2 and the imaging distance.
When the first prism 31 rotates to a first preset angle, the first prism 31 projects a first image emitted from the light outlet 11 onto an imaging plane of the first image display element 21; when the first prism 31 rotates to a second preset angle, the first prism 31 projects a second image emitted from the light outlet 11 onto an imaging plane of the second image display element 22.
Taking the optical assembly applied to the AR glasses as an example, the first image display element 21 is a left lens of the AR glasses, the second image display element 22 is a right lens of the AR glasses, the first preset angle is a relative imaging angle of the left lens, and the second preset angle is a relative imaging angle of the right lens. The light engine alternately generates a first image projected on the first image display element 21 and a second image projected on the second image display element 22 at a preset frame rate.
As shown in fig. 2, when the first prism 31 rotates to a first preset angle, the optical machine 1 emits a first image, the first image first reaches the first prism 31, and the first prism 31 projects the processed first image on the left eye lens, i.e. the first image display element 21; as shown in fig. 3, when the first prism 31 rotates to a second preset angle, the optical machine 1 emits a second image, the second image first reaches the first prism 31, and the first prism 31 projects the processed second image on the right eyeglass, i.e. the second image display element 22. Note that the arrows in fig. 2 and 3 indicate the emission and projection directions of the image.
The reflection and refraction processes of the image emitted by the optical machine 1 in the first prism 31 are shown in fig. 4, taking the first prism 31 as a triangular prism as an example, an incident light enters into the light incident surface of the first prism 31, an emergent light is formed inside the first prism 31 by reflecting and reaching the light emergent surface of the first prism 31, and the emergent light enters into a first lens, i.e., the first image display element 21 in fig. 4, and imaging is realized on the first image display element 21.
It should be noted that the preset speed of rotation of the optical path processing element 3 is greater than or equal to 60 frames/sec, that is, the first prism 31 rotates at a speed greater than or equal to 60 frames/sec. Because human eyes have the characteristic of persistence of vision, even if the left and right lenses are imaged in turn in the rotation process of the first prism 31, the simultaneous playing of the left and right eyes viewing images under the operation of one optical machine can be smoothly realized only by controlling the rotation speed of 60 frames per second.
For the application of the optical assembly in AR glasses, a set of optical machines can be used for realizing binocular lens imaging, so that the weight of the AR glasses is lighter, a light counterweight creates conditions for the intelligent AR glasses to be hung on the glasses of a user, and the cost is greatly reduced; the power consumption of the whole AR glasses is reduced by half by one optical machine, and the problem that the AR glasses are heated seriously and difficult to dissipate heat is solved; in addition, one set of mainboard only needs the corresponding module of one set of ray apparatus of control and light source can realize two mesh formation of image, has relieved the risk that the formation of image of left and right eyes postpones.
Optionally, the optical path processing element 3 is a reflector 32; the reflector 32 is disposed on an extension of the light outlet 11. The reflector 32 is arranged on the extension line of the light outlet 11, so that the reflector 32 can receive the image sent by the optical machine 1 to the maximum extent, and the integrity of the image is ensured. The reflector 32 can reflect the image emitted from the light outlet 11 to components in different directions only by rotating a part of the angle.
In the case where the optical path processing element 3 is a reflector 32, the optical module further includes: at least two prisms; one for each of the image display elements 2. The prism is used for receiving the image reflected by the reflector 32 and projecting the image on the imaging plane of the image display element 2 corresponding to the image.
When the reflector 32 rotates to a third preset angle, the reflector 32 reflects the first image emitted from the light outlet 11 to the second prism 4, and the second prism 4 projects the first image onto the imaging plane of the first image display element 21; when the reflector 32 rotates to a fourth preset angle, the reflector 32 reflects the second image emitted from the light outlet 11 to the third prism 5, and the third prism 5 projects the second image onto the imaging plane of the second image display element 22.
Taking the optical assembly applied to the AR glasses as an example, the first image display element 21 is a left lens of the AR glasses, the second image display element 22 is a right lens of the AR glasses, the third preset angle is a relative imaging angle of the left lens, and the fourth preset angle is a relative imaging angle of the right lens. The light engine alternately generates a first image projected on the first image display element 21 and a second image projected on the second image display element 22 at a preset frame rate.
As shown in fig. 5, when the reflector 32 rotates to a third preset angle, the optical machine 1 emits a first image, the first image first reaches the reflector 32, the reflector 32 reflects the first image to the second prism 4, and the second prism 4 projects the first image on the corresponding left-eye lens, i.e. the first image display element 21; as shown in fig. 6, when the reflector 32 rotates to a fourth preset angle, the optical engine 1 emits a second image, the second image first reaches the reflector 32, the reflector 32 reflects the second image to the third prism 5, and the third prism 5 projects the second image on the corresponding right-eye lens, i.e., the second image display element 22. It should be noted that arrows in fig. 5 and 6 indicate directions of emission and projection of images, and a broken line passing through the second prism 4, the reflector 32, and the third prism 5 does not indicate that the three are connected, and the broken line indicates a relative positional relationship between the three, that is, the broken line is located on the same axis.
Optionally, the preset speed is greater than or equal to 60 frames/second. I.e. the reflector 32 rotates at a speed of greater than or equal to 60 frames/second. Because human eyes have the characteristic of vision persistence, even if the left and right lenses form images in turn in the rotating process of the reflector 32, the playing of the images viewed by the left and right eyes simultaneously under the operation of one optical machine can be smoothly realized only by controlling the rotating speed of 60 frames per second.
In this embodiment, the optical path processing element 3 is the reflector 32, which not only can realize binocular imaging by a set of optical machines, reduce the weight of the AR glasses, reduce the cost, and solve the problem of serious heating and difficult heat dissipation of the AR glasses; in addition, the reflector only needs to rotate by a part of angle, so that the rotating angle can be reduced, and the time is saved.
Alternatively, the at least two image display elements 2 are symmetrically disposed on both sides of an extension line of the light outlet 11. The symmetrical arrangement enables the angle of the image display element 2 facing the left side of the extension line of the light outlet 11 and the angle of the image display element 2 facing the right side of the extension line of the light outlet 11 to be the same for the light path processing element 3, so that the straight-line distances from the light path processing element 3 to the image display elements 2 on both sides of the extension line of the light outlet 11 are the same, and the distances and the time from the image emitted by the optical machine 1 to the at least two image display elements 2 are ensured to be the same.
Optionally, the optical assembly further comprises: and the control module is used for controlling the light path processing element 3 to rotate at the preset speed. The control module can comprise a microprocessor, and can also be other devices capable of realizing control functions.
Optionally, the optical assembly further comprises: a distortion processing unit; the distortion processing unit is disposed between the optical path processing element 3 and the image display element 2.
In this embodiment, if the image emitted from the optical machine 1 is distorted due to factors such as the manufacturing process of the lens components or light, the distortion processing unit may perform distortion correction on the image. When the optical path processing element 3 is a first prism, since the first prism can be flexibly designed according to the incident angle of the optical machine, the display angle of the lens and the imaging distance, the distortion processing unit can compensate the deviation of prism angle design through distortion correction processing, and finally images on the imaging plane of the image display element 2.
It should be noted that, in the embodiment of the present invention, specific installation positions and fixing manners of the optical machine 1, the image display elements 2 (at least two), the optical path processing element 3 (which is a first prism or a light reflecting plate), the second prism 4, the third prism 5, and the distortion processing unit are set according to requirements of actual equipment to which the optical assembly is applied.
In an embodiment of the present invention, the optical engine corresponds to at least two image display elements, and the image generated by the optical engine is alternately projected on the imaging planes of the at least two image display elements by the rotation of the optical path processing element. At least two image display elements share one optical machine, the cost of at least one set of optical components can be saved, the weight of equipment formed by the optical components is reduced, the power consumption of the product is greatly reduced, the problems of serious heating and difficult heat dissipation of the optical components are solved, and the running performance of a host is improved.
The embodiment of the invention also provides electronic equipment which comprises the optical component. The electronic device may be an AR glasses, and those skilled in the art can understand that the electronic device may be other electronic devices having an optical component besides the AR glasses.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or electronic device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or electronic device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or electronic device that comprises the element.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (11)
1. An optical assembly, comprising:
an optical machine (1);
at least two image display elements (2) arranged at a light exit side of the optical machine (1), the at least two image display elements (2) comprising: a first image display element (21) and a second image display element (22);
an optical path processing element (3) disposed between the light exit (11) of the optical machine (1) and the image display element (2), the optical path processing element (3) rotating at a preset speed;
wherein the optical path processing element (3) comprises a first projection state and a second projection state;
under the condition that the optical path processing element (3) rotates to a first projection state, the optical machine (1) sends a first image, and the first image is projected on a first image display element (21) after passing through the optical path processing element (3);
under the condition that the optical path processing element (3) rotates to a second projection state, the optical machine (1) sends a second image, and the second image is projected on a second image display element (22) after passing through the optical path processing element (3).
2. Optical assembly according to claim 1, characterized in that the optical path processing element (3) is a first prism (31);
the first prism (31) is arranged on an extension line of the light outlet (11).
3. The optical assembly according to claim 2, wherein the first prism (31) projects a first image emitted from the light outlet (11) onto an imaging plane of a first image display element (21) when the first prism (31) is rotated to a first preset angle;
when the first prism (31) rotates to a second preset angle, the first prism (31) projects a second image emitted by the light outlet (11) on an imaging plane of a second image display element (22).
4. Optical assembly according to claim 1, characterized in that the optical path processing element (3) is a reflector plate (32);
the reflector (32) is arranged on the extension line of the light outlet (11).
5. The optical assembly of claim 4, further comprising: at least two prisms;
each of the image display elements (2) corresponds to one of the prisms.
6. The optical assembly of claim 5,
when the reflector (32) rotates to a third preset angle, the reflector (32) reflects the first image emitted from the light outlet (11) to the second prism (4), and the second prism (4) projects the first image to an imaging plane of the first image display element (21);
when the reflector (32) rotates to a fourth preset angle, the reflector (32) reflects the second image emitted by the light outlet (11) to the third prism (5), and the third prism (5) projects the second image to the imaging plane of the second image display element (22).
7. The optical assembly of claim 1, wherein the preset speed is greater than or equal to 60 frames/sec.
8. Optical assembly according to claim 1, wherein the at least two image display elements (2) are arranged symmetrically on both sides of an extension of the light exit opening (11).
9. The optical assembly of claim 1, further comprising: and the control module is used for controlling the light path processing element (3) to rotate at the preset speed.
10. The optical assembly of claim 1, further comprising: a distortion processing unit;
the distortion processing unit is disposed between the optical path processing element (3) and the image display element (2).
11. An electronic device, characterized in that it comprises an optical component according to any one of claims 1 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911241617.1A CN111007670A (en) | 2019-12-06 | 2019-12-06 | Optical assembly and electronic equipment |
| PCT/CN2020/132632 WO2021109957A1 (en) | 2019-12-06 | 2020-11-30 | Optical component and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911241617.1A CN111007670A (en) | 2019-12-06 | 2019-12-06 | Optical assembly and electronic equipment |
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| CN111007670A true CN111007670A (en) | 2020-04-14 |
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| CN201911241617.1A Pending CN111007670A (en) | 2019-12-06 | 2019-12-06 | Optical assembly and electronic equipment |
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| WO (1) | WO2021109957A1 (en) |
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| WO2021109957A1 (en) * | 2019-12-06 | 2021-06-10 | 维沃移动通信有限公司 | Optical component and electronic device |
| CN113419343A (en) * | 2021-05-20 | 2021-09-21 | 歌尔股份有限公司 | Head-mounted display device, display control method, device and storage medium |
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| CN108957755A (en) * | 2018-07-27 | 2018-12-07 | 京东方科技集团股份有限公司 | A kind of display component and its control method, head-up display and automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109957A1 (en) * | 2019-12-06 | 2021-06-10 | 维沃移动通信有限公司 | Optical component and electronic device |
| CN113419343A (en) * | 2021-05-20 | 2021-09-21 | 歌尔股份有限公司 | Head-mounted display device, display control method, device and storage medium |
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| WO2021109957A1 (en) | 2021-06-10 |
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Application publication date: 20200414 |