CN110646942A - Ultrathin optical amplification module and application thereof - Google Patents
Ultrathin optical amplification module and application thereof Download PDFInfo
- Publication number
- CN110646942A CN110646942A CN201910934871.3A CN201910934871A CN110646942A CN 110646942 A CN110646942 A CN 110646942A CN 201910934871 A CN201910934871 A CN 201910934871A CN 110646942 A CN110646942 A CN 110646942A
- Authority
- CN
- China
- Prior art keywords
- polarizer
- lens
- light
- partially
- ultra
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 65
- 230000003321 amplification Effects 0.000 title claims abstract description 32
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 32
- 230000010287 polarization Effects 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 5
- 238000002310 reflectometry Methods 0.000 claims abstract description 4
- 238000010521 absorption reaction Methods 0.000 claims description 24
- 239000011521 glass Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 14
- 238000003384 imaging method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
-
- 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
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
-
- 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
-
- 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
Abstract
The invention discloses an ultrathin optical magnification module, which comprises a first phase delay sheet, a light-transmitting element, a lens or a lens group, a second phase delay sheet and a first reflection type polaroid, wherein the first phase delay sheet, the light-transmitting element, the lens or the lens group, the second phase delay sheet and the first reflection type polaroid are sequentially arranged from an object side to an image side, and the reflectivity of the light-transmitting element reflected by the partial transmission part is 10% -90%; the lens or the lens group is a spherical lens, an aspherical lens, a free-form surface lens, a liquid crystal lens, a super lens and the like. The invention adopts the polarization light path and the light-transmitting element with partial transmission and partial reflection, realizes the increase of the effective light path in short distance, shortens the length of the optical axis direction of the optical module, and greatly reduces the volume of the optical system including the optical amplification module.
Description
Technical Field
The invention belongs to the field of optics, and particularly relates to an ultrathin optical amplification module and application thereof.
Background
At present, a plurality of optical elements are generally used to obtain a better magnification and an imaging effect, but this often increases the size and volume of the optical magnification module. The existing VR display equipment on the market, including VR intelligent glasses, intelligent helmet and various head-mounted display equipment etc. mostly obtain the magnification that satisfies the demands through the distance of increase display screen and lens or the thickness of lens. The methods undoubtedly increase the volume of the optical amplification system, and the weight of the whole machine is increased, so that the use feeling of a user is directly influenced, and the experience effect of the user is reduced.
In order to provide better user experience, the existing optical amplification module is developed in the direction of miniaturization and light weight. The size of the optical magnification module is shortened while a larger angle of view and higher imaging quality are ensured. Such as the patent: short distance optical magnification module, glasses, helmet and VR system (publication: CN205562979U), the disclosed optical magnification module includes a reflective polarizer, a first phase retarder, a first lens, a second lens, a third lens and a second phase retarder. According to the specification, the optimization range of the lens is limited by adopting a structure that one surface is an aspheric surface and the other surface is a plane. In order to ensure the amplification effect, a plurality of lenses are required, so that the whole optical amplification module is still large in size; meanwhile, the light energy can be reduced through multiple reflections, so that imaging in a view field is dark, and the experience effect is influenced.
Disclosure of Invention
Aiming at the technical problems of large size and poor user experience of the conventional optical amplification module, the invention provides an ultrathin optical amplification module, which has the following specific technical scheme:
the ultrathin optical magnification module is characterized by comprising a first phase retardation plate, a partially-transmitted and partially-reflected light-transmitting element, a lens or a lens group, a second phase retardation plate and a first reflection type polaroid which are arranged in sequence from an object side to an image side, wherein the reflectivity of the partially-transmitted and partially-reflected light-transmitting element is 10% -90%; the lens or the lens group is a spherical lens, an aspherical lens, a free-form surface lens, a liquid crystal lens, a super lens and the like.
The liquid crystal display device further comprises a first absorption-type polarizer, wherein the first absorption-type polarizer is close to the object side and is arranged in front of the first phase retarder.
Further, the liquid crystal display device further includes a second reflection type polarizing plate disposed near the object side and in front of the first absorption type polarizing plate, the second reflection type polarizing plate having the same transmission direction as the first absorption type polarizing plate.
Further, a second absorbing polarizer is included, adjacent the image side, behind the first reflective polarizer. The second absorbing polarizer has the same transmission direction as the first reflecting polarizer.
Furthermore, the second reflection type polaroid, the first absorption type polaroid, the first phase retarder and the light-transmitting element which is partially transmitted and partially reflected are of film structures and are bonded and compounded together. The second phase retarder, the first reflection type polaroid and the second absorption type polaroid are of film structures and are bonded and compounded on the smooth surface, close to the image side, of the lens or the lens group.
Furthermore, the polarization directions of the first absorption-type polarizer and the first reflection-type polarizer are the same, the polarization directions of the second reflection-type polarizer and the second absorption-type polarizer are the same, and the first phase retarder and the second phase retarder are both lambda/4 wave plates.
The first absorption-type polarizer, the first reflection-type polarizer, the second reflection-type polarizer and the second absorption-type polarizer have the same polarization direction, and the first phase retarder and the second phase retarder have the same rotation direction.
Furthermore, the polarization directions of the first absorption-type polarizer and the first reflection-type polarizer are perpendicular to the polarization directions of the second reflection-type polarizer and the second absorption-type polarizer, and the rotation directions of the first phase retarder and the second phase retarder are opposite.
Further, one or more optical components that do not change the polarization state of the optical image may be disposed between any two adjacent structures of the second reflective polarizer, the first absorption polarizer, the first phase retarder, the partially transmissive and partially reflective light-transmitting element, the second phase retarder, the first reflective polarizer, and the second absorption polarizer, between the object side and the second reflective polarizer, and between the second absorption polarizer and the image side.
An intelligent helmet, head-mounted device or intelligent glasses, characterized in that, it includes any one above-mentioned ultra-thin optical amplification module.
The invention has the following beneficial effects:
(1) adopt the printing opacity component of polarization light path and partial transmission partial reflection, realize the increase of effect light path in the short distance, shorten optical module's optical axis direction length to reduce the volume that the module is enlarged to optics greatly and constitute magnification system, when using it for intelligent helmet and head-mounted device or intelligent glasses, can improve the comfort level that the user wore, reinforcing user experience feels.
(2) The optical magnification module is provided with the lens or the lens group, and the two aspheric surfaces are taken as an implementation case, so that compared with the traditional spherical surface or Fresnel lens, the optical magnification module has better imaging effect while ensuring the magnification.
(3) The absorption type polaroid, the reflection type polaroid, the phase retarder and the partial transmission and partial reflection element used in the invention are all of composite film structures, and the space volume can be greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of an ultra-thin optical amplification module according to the present invention;
FIG. 2 is a schematic structural diagram of an ultra-thin optical amplification module according to a first embodiment of the present invention;
FIG. 3 is an experimental optical path diagram of a first embodiment of the ultra-thin optical amplification module of the present invention;
fig. 4 is a schematic structural diagram of a second ultra-thin optical amplification module according to an embodiment of the present invention.
In the figure, a first phase retarder 1, a partially transmissive and partially reflective light-transmitting element 2, a lens or lens group 3, a second phase retarder 4, a first reflective polarizer 5, a first absorbing polarizer 6, a second reflective polarizer 7, a second absorbing polarizer 8, an object plane 9, and an image plane 10.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the invention will become more apparent. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the ultra-thin optical magnification module of the present invention includes a first retardation film 1, a partially transmissive and partially reflective transparent element 2, a lens or lens group 3, a second retardation film 4, and a first reflective polarizer 5 disposed in order from an object side to an image side. The reflectivity of the partially transmissive and partially reflective light-transmitting element 2 is 10% -90%. It is assumed here that the light emitted from the light source is a first linearly polarized light, which is converted into a circularly polarized light by the first phase retarder 1, and then passes through the light-transmitting element 2 which is partially transmitted and partially reflected, and the light of the transmitted portion is amplified once by the lens or lens group 3. The circularly polarized light is converted into second linearly polarized light by the second phase retarder 4, and since the polarization direction is perpendicular to the polarization direction of the first reflective polarizer 5, the light is reflected back to the second phase retarder 4 to be converted into circularly polarized light. The light is at this time magnified again by the lens or lens group 3 in turn, and then passes through the light-transmitting element portion 2 which is partially transmitted and partially reflected. The reflected portion of the light is still circularly polarized, but the handedness is reversed. The light is amplified again by the lens or the lens group 3, and is converted into first linear polarized light by the action of the second phase retarder 4, and the polarized direction of the first linear polarized light is the same as the polarized direction of the first reflection type polarizer 5, so that the light is emitted.
As one example, the partially transmissive and partially reflective light transmissive element 2 is a transflective film or a half mirror, and the first phase retardation plate 2 and the second phase retardation plate 5 are both λ/4 wave plates and are both right-handed.
There is a large loss because the light passes through the partially transmissive and partially reflective light-transmitting element 2 several times in the entire light path. A first absorbing polarizer 6 is thus arranged between the object side 9 and the first phase retarder 1. The light emitted by the light source is converted into first linear polarized light through the first absorption type polaroid 6, the first linear polarized light is converted into circularly polarized light through the first phase retarder 1, then the circularly polarized light passes through the light transmitting element 2 which is partially transmitted and partially reflected, and at the moment, part of the reflected light is converted into second linear polarized light through the first phase retarder 1 and is absorbed by the first absorption type polaroid 6. And reflected stray light is absorbed, and the imaging quality is improved.
Further, in order to reflect light that cannot be transmitted into the optical amplification module to the object side, the second reflection type polarizing plate 7 is provided between the object side 9 and the first absorption type polarizing plate 6, and the reflection point and the light emission point are short, and thus the same object point can be regarded. Therefore, the effect of increasing the screen brightness can be realized, and the utilization rate of the light source is improved.
Further, in order to improve the imaging effect, the second absorption-type polarizing plate 8 is provided on the image side to absorb the reflected light on the image side.
Therefore, as shown in fig. 2, one embodiment of the ultra-thin optical magnification module of the present invention includes a second reflective polarizer 7, a first absorbing polarizer 6, a first phase retarder 1, a partially transmissive and partially reflective light transmissive element 2, a second phase retarder 4, a first reflective polarizer 5, and a second absorbing polarizer 8, which are sequentially disposed from an object side to an image side.
In one embodiment, the second reflective polarizer 7, the first absorbing polarizer 6, the first reflective polarizer 5, and the second absorbing polarizer 8 have the same polarization direction, and the first phase retarder 2 and the second phase retarder 5 have the same rotation direction.
The light source used by the ultrathin optical amplification module comprises an LCD, an LED, a micro LED, an OLD and the like.
In order to improve the optical imaging effect, in the present embodiment, the lens or lens group 3 is implemented by using two aspheric lenses. As shown in fig. 3, in the first optical path diagram of the ultra-thin optical magnification module according to the embodiment of the present invention, 31 is a first lens, 32 is a second lens, the second phase retarder 4, the first reflective polarizer 5 and the second absorptive polarizer 8, 9 are combined on the light outgoing surface near the eye side to form an object plane, and the second reflective polarizer 7, the first absorptive polarizer 6, the first phase retarder 1 and the partially transmissive and partially reflective light transmissive elements 2, 10 are combined on the surface near the first lens 31 to form an image plane. The first lens 31 is an aspheric lens with the thickness of 7.144mm and optimized 14 th order, the light-facing surface and the light-emitting surface are aspheric, the material of the light-facing surface is PMMA, and the diameter is 39.368 mm; the second lens 32 is an aspheric lens with the thickness of 2.41mm and optimized 12-order, the light-facing surface is an aspheric surface, the light-emitting surface is a plane, the material of the light-facing surface is PMMA, the diameter is 39.076mm, the weight is light, and therefore the weight of the whole module is light.
In this embodiment, the light-transmitting element 2 that partially transmits and partially reflects is a transflective film, and the polarization directions of the first reflective polarizer 5, the first absorption polarizer 6, the second reflective polarizer 7, and the second absorption polarizer 8 are first linear polarization directions, and here, taking the vertical direction as an example, the second linear polarization direction is the horizontal direction. It should be noted that the first phase retarder 1 and the second phase retarder 4 may adopt a left-handed mode, the first linear polarization direction may also adopt a horizontal direction, and the second linear polarization direction may adopt a vertical direction.
As shown in fig. 3, in a first optical path diagram of an embodiment of the ultra-thin optical amplification module of the present invention, natural light emitted from an object plane 9 is emitted through a combined second reflection-type polarizer 7 and a first absorption-type polarizer 6, then converted into right-handed circularly polarized light by a first phase retarder 1, and emitted through a light-transmitting element 2 which is partially reflected by a transmission part, and the transmitted light is amplified by a second lens 32 and a first lens 31. At this time, the light emitted from the second lens 32 is right-handed circularly polarized light, and is converted into S light by the second phase retardation plate 4. Since the transmission direction of the first reflective polarizer 5 is perpendicular to the S-light vibration direction, the light is reflected back to the second phase retarder 4 to be converted into right-handed circularly polarized light. At this time, the light is again enlarged through the second lens 32 and the first lens 31 in order, and then passes through the partially transmissive and partially reflective light-transmitting element portion 2. The reflected light is converted into left-handed circularly polarized light, amplified by the first lens 31 and the second lens 32 again, and converted into P light under the action of the second phase retarder 4, and at the moment, the light is emitted and enters human eyes in the same polarization direction as the first reflection type polaroid 5 and the second absorption type polaroid 8.
In another embodiment, the first phase retardation plate 1 and the second phase retardation plate 4 are λ/4 wave plates, and the rotation directions of the two are opposite, where the first phase retardation plate 1 rotates right and the second phase retardation plate 4 rotates left as an example. The partially transmissive and partially reflective light-transmitting element 2 is a half-mirror. The first reflection type polarizer 5 and the first absorption type polarizer 6 are in the first linear polarization direction, and here, the vertical direction is taken as an example. The polarization direction of the second reflective polarizer 7 and the second absorbing polarizer 8 is a second linear polarization direction, here the horizontal direction as an example. It should be noted that the first retarder 1 may be left-handed and the second retarder 4 may be right-handed. The first linear polarization direction may be a horizontal direction, and the second linear polarization direction may be a vertical direction, which is not limited to the above embodiment, and the first linear polarization direction and the second linear polarization direction may be perpendicular to each other.
As shown in fig. 4, another embodiment of the ultra-thin optical amplification module of the present invention is a schematic structural diagram, wherein natural light emitted from an object plane 9 is emitted through a second reflection-type polarizer 7 and a first absorption-type polarizer 6, and then P light is emitted, converted into right-handed circularly polarized light by a first phase retarder 1, and emitted through a light-transmitting element 2 which is partially reflected by a transmission part, and the transmitted light is amplified by a lens group. At this time, the light emitted from the second lens 32 is right-handed circularly polarized light, and is converted into P light by the second phase retardation plate 4. Since the transmission direction of the first reflective polarizer 5 is perpendicular to the P-ray vibration direction, the light is reflected back to the second phase retarder 4 to be converted into right-handed circularly polarized light. At this time, the light is again enlarged through the second lens 32 and the first lens 31 in order, and then passes through the partially transmissive and partially reflective light-transmitting element portion 2. The reflected light is converted into left-handed circularly polarized light, amplified by the first lens 31 and the second lens 32 again, and converted into S light under the action of the second phase retarder 4, and at the moment, the light is emitted and enters human eyes in the same polarization direction as the first reflection type polaroid 5 and the second absorption type polaroid 8.
For better imaging effect or special effect, including but not limited to the structures in the above embodiments, one or more optical components that do not change the polarization state of the optical image may be disposed between any two adjacent structures, the object side and the second reflective polarizer 7, the second absorbing polarizer 8, and the image side.
By adopting the polarizing light path and the light-transmitting element with partial transmission and partial reflection, the invention increases the effective light path in a short distance, shortens the length of the optical module in the optical axis direction and reduces the volume of an optical system; by adopting a lens or a lens group, taking two aspheric surfaces as an example in the embodiment, better magnification and imaging effect can be obtained with fewer optical elements.
The absorption type polaroid, the reflection type polaroid, the phase retarder and the partial transmission partial reflection element used in the ultrathin optical amplification module can be independently arranged or can be bonded and compounded. In practical use, the components are generally compounded together, so that the space volume is greatly reduced.
Based on the ultrathin optical amplification module provided by the invention, the invention also provides intelligent glasses, which comprise a screen and related electronic devices besides the ultrathin optical amplification module, wherein the screen and the related electronic devices form coaxial or non-coaxial intelligent glasses equipment together.
Based on the ultra-short and thin optical amplification module provided by the invention, the invention also provides an intelligent helmet and a head-mounted device, and the ultra-thin distance optical amplification module also comprises a screen and related electronic devices, and the ultra-thin distance optical amplification module, the screen and the related electronic devices form the coaxial or non-coaxial intelligent helmet or head-mounted device.
The ultrathin optical amplification module comprises the intelligent glasses, the helmet and the head-mounted equipment, which are not listed. The VR system provided by the invention can be used in the use occasions, and the whole equipment has a larger field angle, a high-quality imaging effect, an ultrathin structure and the like, so that the experience of a user is improved.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and although the invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made and equivalents may be substituted for elements thereof. All modifications, equivalents and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The ultrathin optical magnification module is characterized by comprising a first phase retardation plate (1), a partially-transmitted and partially-reflected light-transmitting element (2), a lens or lens group (3), a second phase retardation plate (4) and a first reflection type polaroid (5) which are arranged in sequence from an object side to an image side, wherein the reflectivity of the partially-transmitted and partially-reflected light-transmitting element (2) is 10% -90%; the lens or the lens group is a spherical lens, an aspherical lens, a free-form surface lens, a liquid crystal lens, a super lens and the like.
2. Ultra-thin optical amplification module according to claim 1, further comprising a first absorbing polarizer (6), the first absorbing polarizer (6) being arranged close to the object side, in front of the first phase retarder (1).
3. Ultra-thin optical magnification module as claimed in claim 2, further comprising a second reflective polarizer (7) arranged close to the object side, in front of the first absorbing polarizer (6), the second reflective polarizer (7) having the same transmission direction as the first absorbing polarizer (6).
4. Ultra-thin optical magnification module according to claim 3, further comprising a second absorbing polarizer (8) arranged close to the image side, behind the first reflective polarizer (5). The second absorbing polarizer (8) has the same transmission direction as the first reflecting polarizer (5).
5. Ultra-thin optical amplification module as claimed in claim 4, wherein the second reflective polarizer (7), the first absorbing polarizer (6), the first retarder (1) and the partially transmissive and partially reflective light transmissive element (2) are in film structure and bonded together. The second phase retardation plate (4), the first reflection type polaroid (5) and the second absorption type polaroid (8) are of film structures and are bonded and compounded on the light surface, close to the image side, of the lens or the lens group (3).
6. The ultra-thin optical amplification module of claim 4, wherein the first absorption polarizer (6) and the first reflection polarizer (1) have the same polarization direction, the second reflection polarizer (5) and the second absorption polarizer (8) have the same polarization direction, and the first phase retarder (1) and the second phase retarder (4) are both λ/4 plates.
7. The ultra-thin optical amplification module of claim 6, wherein the first absorption polarizer (6), the first reflection polarizer (1), the second reflection polarizer (5) and the second absorption polarizer (8) have the same polarization direction, and the first phase retarder (2) and the second phase retarder (5) have the same rotation direction.
8. The ultra-thin optical amplification module of claim 6, wherein the polarization directions of the first absorption polarizer (6) and the first reflection polarizer (1) are perpendicular to the polarization directions of the second reflection polarizer (5) and the second absorption polarizer (8), and the rotation directions of the first phase retarder (2) and the second phase retarder (5) are opposite.
9. An ultra-thin optical magnification module as defined in claim 1, wherein one or more optical components that do not change the polarization state of the optical image are disposed between any two adjacent structures of the second reflective polarizer (7), the first absorbing polarizer (6), the first phase retarder (1), the partially transmissive and partially reflective light transmissive element (2), the second phase retarder (4), the first reflective polarizer (5), and the second absorbing polarizer (8), the object side and the second reflective polarizer (7), and the second absorbing polarizer (8), and the image side.
10. An intelligent helmet, head-mounted device or intelligent glasses, characterized in that it comprises an ultra-thin optical amplification module according to any of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934871.3A CN110646942A (en) | 2019-09-29 | 2019-09-29 | Ultrathin optical amplification module and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934871.3A CN110646942A (en) | 2019-09-29 | 2019-09-29 | Ultrathin optical amplification module and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110646942A true CN110646942A (en) | 2020-01-03 |
Family
ID=68993212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910934871.3A Pending CN110646942A (en) | 2019-09-29 | 2019-09-29 | Ultrathin optical amplification module and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110646942A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443491A (en) * | 2020-04-30 | 2020-07-24 | 京东方科技集团股份有限公司 | Optical display system, control method and display device |
| CN112596238A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN114690415A (en) * | 2020-12-29 | 2022-07-01 | 华为技术有限公司 | Optical module and electronic equipment |
| WO2022141133A1 (en) * | 2020-12-30 | 2022-07-07 | 深圳纳德光学有限公司 | Catadioptric eyepiece optical system and head-mounted display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040184148A1 (en) * | 2001-05-21 | 2004-09-23 | Jds Uniphase Corporation | Integrated micro-optic architecture for combining and depolarizing plural polarized laser beams |
| CN108873334A (en) * | 2018-06-19 | 2018-11-23 | 平行现实（杭州）科技有限公司 | A kind of ultra thin optical amplification mould group and amplification system |
-
2019
- 2019-09-29 CN CN201910934871.3A patent/CN110646942A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040184148A1 (en) * | 2001-05-21 | 2004-09-23 | Jds Uniphase Corporation | Integrated micro-optic architecture for combining and depolarizing plural polarized laser beams |
| CN108873334A (en) * | 2018-06-19 | 2018-11-23 | 平行现实（杭州）科技有限公司 | A kind of ultra thin optical amplification mould group and amplification system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443491A (en) * | 2020-04-30 | 2020-07-24 | 京东方科技集团股份有限公司 | Optical display system, control method and display device |
| CN112596238A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN114690415A (en) * | 2020-12-29 | 2022-07-01 | 华为技术有限公司 | Optical module and electronic equipment |
| WO2022143369A1 (en) * | 2020-12-29 | 2022-07-07 | 华为技术有限公司 | Optical module and electronic device |
| WO2022141133A1 (en) * | 2020-12-30 | 2022-07-07 | 深圳纳德光学有限公司 | Catadioptric eyepiece optical system and head-mounted display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7329207B2 (en) | Augmented reality device and optical system and semi-reflector therefor | |
| CN211698435U (en) | Optical imaging system and head-mounted display equipment | |
| CN110646942A (en) | Ultrathin optical amplification module and application thereof | |
| CN105572894B (en) | A kind of short distance optical amplifier module, amplification method and amplification system | |
| US20190033599A1 (en) | Short-distance optical amplification module, amplification method and amplification system | |
| WO2020014992A1 (en) | Virtual reality display apparatus | |
| US11604349B2 (en) | Short-distance optical amplification module, amplification method and amplification system | |
| CN103345065B (en) | Wearablely look squarely optical system | |
| CN107065181B (en) | Optical system of virtual reality equipment | |
| JP2019506636A5 (en) | ||
| CN218003854U (en) | Optical module and head-mounted display equipment | |
| CN205539752U (en) | Short distance optical enlargement module and subassembly thereof | |
| CN102495470A (en) | Waveguide-based perspective display device and spectacle-type micro projection system | |
| CN215986726U (en) | Augmented reality display system | |
| TWM591624U (en) | Short distance optical system | |
| CN213069318U (en) | Catadioptric display optical machine and near-to-eye display equipment | |
| CN209803457U (en) | Head-mounted display optical system capable of reducing external stray light | |
| CN211878327U (en) | Near-to-eye display device and glasses | |
| CN216248599U (en) | Augmented reality display system and AR glasses | |
| US20230176381A1 (en) | Augmented reality display system and ar goggle | |
| CN115291390A (en) | Optical module and head-mounted display equipment | |
| WO2022143011A1 (en) | Waveguide-based augmented reality apparatus and method therefor | |
| CN212623170U (en) | Compact optical module and near-to-eye display device | |
| CN115268069A (en) | Optical module and head-mounted display equipment | |
| CN202330869U (en) | Waveguide-based perspective display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200103 |
|
| RJ01 | Rejection of invention patent application after publication |