CN116560100A - Optical system and display device - Google Patents
Optical system and display device Download PDFInfo
- Publication number
- CN116560100A CN116560100A CN202310826235.5A CN202310826235A CN116560100A CN 116560100 A CN116560100 A CN 116560100A CN 202310826235 A CN202310826235 A CN 202310826235A CN 116560100 A CN116560100 A CN 116560100A
- Authority
- CN
- China
- Prior art keywords
- light
- polarized light
- beam splitter
- optical system
- polarization beam
- 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 90
- 230000010287 polarization Effects 0.000 claims abstract description 79
- 230000004075 alteration Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000003384 imaging method Methods 0.000 description 32
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
-
- 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
- G02B27/0101—Head-up displays 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
- G02B27/10—Beam splitting or combining systems
- G02B27/12—Beam splitting or combining systems operating by refraction only
- G02B27/126—The splitting element being a prism or prismatic array, including systems based on total internal reflection
-
- 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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
- G02B2027/0114—Head-up displays characterised by optical features comprising device for genereting colour display comprising dichroic elements
Abstract
The present invention relates to the field of optical display devices, and in particular, to an optical system and a display device. Comprising the following steps: the polarization beam splitter is used for transmitting the first polarized light and reflecting the second polarized light, the first light adjusting component is arranged on the first side of the polarization beam splitter, and the second light adjusting component is arranged on the second side of the polarization beam splitter. Because the light beam deflection efficiency of the optical system is far lower than that of the reflection, the light beam in the existing optical system mainly comprising the transmission only passes through the lens once, and the first light beam adjusting component and the second light beam adjusting component have the reflection function in the optical system. Therefore, the reflection and refraction are matched to carry out larger-amplitude refraction on the optical path, so that the optical system can compress the total length and the volume of the optical system to a larger extent.
Description
Technical Field
The present invention relates to the field of optical display devices, and in particular, to an optical system and a display device.
Background
Augmented Reality (AR) display devices can smartly blend virtual information with the real world visible to the human eye. A virtual reality technology (VR) display device may simulate an environment with virtual information to provide an immersive experience to a person.
The optical module of the AR/VR display device can amplify the image on the display device (LCD, OLED, etc.) through the lens system or the prism optical system, directly or indirectly projects the image on the retina of human eyes through the light guide device (light guide, prism waveguide, etc.), and finally presents a large-screen image with a certain sense of distance to the viewer. In order to provide a good user experience, it is desirable to provide a large angle of view, high imaging quality, and small size.
In the conventional AR/VR display device, an optical lens such as a lens or a prism, an optical functional film layer, a display, and the like are mainly included, and in the conventional optical system, only a see-through optical lens system is generally used. However, this form of optical lens system generally has problems of excessively large volume and excessively long total length (excessively long optical system length), thereby making it difficult for these head-mounted display devices to be portable at the same time, and thus limiting the applications of the head-mounted display devices.
Disclosure of Invention
In view of the foregoing, the present invention provides an optical system and a display device, which at least partially solve the problems in the prior art.
According to a first aspect of the present invention, there is provided an optical system comprising:
the polarization beam splitter is used for transmitting the first polarized light and reflecting the second polarized light, and the polarization directions of the first polarized light and the second polarized light are mutually perpendicular;
the first light ray adjusting component is arranged on a first side of the polarization beam splitter, and the first side is the side of the first polarized light transmitted out of the polarization beam splitter; the first light ray adjusting component is used for converting the first polarized light into first sub-polarized light and reflecting the first sub-polarized light into the polarization beam splitter again, and the polarization directions of the first sub-polarized light and the first polarized light are mutually perpendicular; and
the second light ray adjusting component is arranged on a second side of the polarization beam splitter, and the second side is the side of the second polarized light transmitted out of the polarization beam splitter; the second light adjusting component is used for converting the second polarized light into second sub-polarized light and reflecting the second sub-polarized light into the polarization beam splitter again, and the polarization directions of the second sub-polarized light and the second polarized light are mutually perpendicular.
According to a second aspect of the present invention, there is provided a display device comprising:
an optical system as described above; and a housing, wherein the optical system is disposed in the housing.
In the conventional optical system, light emitted from the display needs to pass through a plurality of lenses successively, and finally reaches the human eye or the optical light guide device after being subjected to refractive adjustment by the plurality of lenses.
Compared with the prior optical system, the optical system of the invention sequentially emits the first polarized light and the second polarized light into the first light adjusting component and the second light adjusting component by the polarization beam splitter from the object side to the image side, then adjusts the polarization direction by the first light adjusting component and the second light adjusting component, then reflects the polarized light into the polarization beam splitter to carry out final synthesis, and finally enters human eyes.
Because the angle of deflection of the light ray by refraction is far lower than the angle of deflection of the light ray by reflection in the optical system, the light ray only passes through the lens once in the existing optical system mainly based on refraction, and the first light ray adjusting component and the second light ray adjusting component have reflection functions in the optical system, the light ray can be re-injected into the polarization beam splitter for adjustment after being adjusted by the first light ray adjusting component and the second light ray adjusting component. Therefore, the reflection can be used for carrying out larger-amplitude refraction on the optical path, so that the optical system can compress the total length and the volume of the optical system to a larger extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an optical system according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of an optical system according to another embodiment of the invention.
Fig. 3 is a schematic structural diagram of an optical system according to another embodiment of the invention.
Fig. 4 is an MTF diagram of an imaging frame generated by an optical path corresponding to a first mirror in an optical system according to another embodiment of the present invention.
Fig. 5 is an MTF diagram of an imaging frame generated by an optical path corresponding to a second mirror in an optical system according to another embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a conventional optical system with fov=40° according to another embodiment of the present invention.
Reference numerals:
1. a polarizing beam splitter; 11. a first side; 12. a second side; 13. a third side; 14. a fourth side; 15. a multilayer film structure; 20. a first quarter wave plate; 21. a first mirror; 22. a second quarter wave plate; 23. a second mirror; 3. a first correction lens group; 4. a display source assembly; 40. a monochromatic display source; 41. a light combining prism; 42. first polarized light; 43. and light of a second polarization.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
It should be noted that, without conflict, the following embodiments and features in the embodiments may be combined with each other; and, based on the embodiments in this disclosure, all other embodiments that may be made by one of ordinary skill in the art without inventive effort are within the scope of the present disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
According to a first aspect of the present invention, as shown in fig. 1 and 2, there is provided an optical system comprising:
a polarization beam splitter 1 for transmitting first polarized light 42 and reflecting second polarized light 43, the polarization directions of the first polarized light 42 and the second polarized light 43 being perpendicular to each other;
meanwhile, the optical system in the invention can achieve the effect of reducing the length, and simultaneously, the polarized state light rays (the first polarized light ray 42 and the second polarized light ray 43) in two directions emitted by the display source assembly are respectively subjected to adjustment of the first light ray adjustment assembly and the second light ray adjustment assembly and then are emitted to the screen again for common imaging, so that the optical brightness of a final imaging picture can be further improved.
The first side 11, the second side 12, the third side 13 and the fourth side 14 of the polarizing beam splitter 1 are the sides towards which the four side surfaces of the polarizing beam splitter 1 face, respectively.
Specifically, the polarization beam splitter 1 may be a polarization beam splitter prism, which is an optical element for separating horizontal polarization and vertical polarization of light. The polarization beam splitter prism is an optical element which is formed by plating a multilayer film structure 15 on the inclined surface of a right angle prism, and then gluing the multilayer film structure into a cube structure, wherein the light passes through the multilayer film structure 15 for a plurality of times at the Brewster angle by utilizing the property that the light has the P-type polarized light transmittance of 1 and the S-type polarized light transmittance of less than 1, and the P-type polarized light component is completely transmitted and most of the S-polarized light component is reflected (at least more than 90 percent).
The first light ray adjusting component is arranged on the first side 11 of the polarization beam splitter 1, and the first side 11 is the side of the first polarized light 42 transmitted out of the polarization beam splitter 1; the first light adjustment component is configured to convert the first polarized light 42 into first sub-polarized light, and reflect the first sub-polarized light into the polarizing beam splitter 1 again, where the polarization directions of the first sub-polarized light and the first polarized light 42 are perpendicular to each other;
the optical system further includes:
a display source assembly 4 disposed on a fourth side 14 of the polarizing beam splitter 1, the fourth side 14 being opposite to the first side 11; the display source assembly 4 is configured to provide incident light rays comprising a first polarized light 42 and a second polarized light 43. Specifically, the first polarized light 42 and the second polarized light 43 may be S-polarized light and P-polarized light, respectively. Incident light from the display source assembly 4 enters the polarizing beam splitter 1 from the fourth side 14. The display source assembly 4 may use a micolized display screen.
The first light ray adjusting component comprises:
a first quarter wave plate 20 arranged on the first side 11 of the polarizing beam splitter 1; and a first reflecting mirror 21 disposed on a side of the first quarter wave plate 20 away from the polarizing beam splitter 1, wherein the surface shape of the first reflecting mirror 21 can be set according to actual needs.
Meanwhile, a second correcting lens group is arranged between the first light adjusting component and one side surface of the polarizing beam splitter 1 corresponding to the first side 11, the second correcting lens group comprises at least one second adjusting lens, specifically, the second adjusting lens can be an existing imaging lens or a prism or a combination thereof, and a plurality of second adjusting lenses are used for amplifying, correcting, changing direction and displaying and synthesizing the image formed by the first polarized light 42, so that the optical system corresponding to the invention has a larger field angle and higher imaging quality.
The optical path of the first polarized light 42 in the present optical system is as follows: the first polarized light 42 passes through the first side 11 of the polarizing beam splitter 1 and then enters the second correcting lens group for the first time, after the first adjustment of the second correcting lens group, the first polarized light 42 reaches the first quarter wave plate 20 for the first time, after the first quarter wave plate 20 is used for conversion, the polarization direction of the first polarized light 42 is changed into an elliptical polarization direction, then, after the first polarized light is reflected by the first reflecting lens 21, the first polarized light 42 reaches the first quarter wave plate 20 for the second time, after the first quarter wave plate 20 is used for conversion, the polarization direction of the first polarized light 42 is changed into a linear polarization direction again, at this time, the polarization direction of the adjusted first polarized light 42 (namely, the first sub polarized light) is perpendicular to the initial polarization direction of the first polarized light 42, then, after the second adjustment of the first sub polarized light enters the polarizing beam splitter 1 from the first side 11, and at this time, the polarization direction of the adjusted first polarized light 42 is identical to the initial polarization direction of the second polarized light 43, the first polarized light 42 is formed in the first polarizer 1, and the third polarized light 13 is formed by the final imaging light from the first polarizing beam splitter 1.
Similarly, the second light adjustment component is disposed on the second side 12 of the polarizing beam splitter 1, where the second side 12 is a side of the second polarized light 43 transmitted out of the polarizing beam splitter 1; the second light adjustment component is configured to convert the second polarized light 43 into second sub-polarized light, and reflect the second sub-polarized light into the polarizing beam splitter 1 again, where the polarization directions of the second sub-polarized light and the second polarized light 43 are perpendicular to each other.
The second light ray adjusting component comprises:
a second quarter wave plate 22 arranged on the second side 12 of the polarizing beam splitter 1; and a second reflecting mirror 23 disposed on a side of the second quarter-wave plate 22 remote from the polarizing beam splitter 1. The shape of the second reflecting mirror 23 may be set according to actual needs.
Meanwhile, a third correction lens group is disposed between the second light adjusting assembly and a side surface of the polarization beam splitter 1 corresponding to the second side 12, and the third correction lens group may be identical to the second correction lens group. The third adjusting lens group includes at least one third adjusting lens, and specifically, the third adjusting lens may be an existing imaging lens or a prism or a combination thereof, and the plurality of third adjusting lenses are used for amplifying, correcting, changing directions of the images formed by the first polarized light 42 and displaying and synthesizing the images, so that the optical system corresponding to the invention has a larger angle of view and higher imaging quality.
The optical path of the second polarized light 43 in the present optical system is as follows: the second polarized light 43 is reflected by the polarizing beam splitter 1, and then exits from the second side 12, enters the third correcting lens group for the first time, reaches the second quarter wave plate 22 for the first time after being adjusted by the third correcting lens group, changes the polarization direction of the second polarized light 43 into an elliptical polarization direction after being converted by the second quarter wave plate 22, then reaches the second quarter wave plate 22 for the second time after being reflected by the second reflecting mirror 23, changes the polarization direction of the second polarized light 43 into a linear polarization direction again after being converted by the second quarter wave plate 22, at this time, the polarization direction of the adjusted second polarized light 43 ((i.e. second sub-polarized light)) is perpendicular to the initial polarization direction of the second polarized light 43, then enters the third correcting lens group for the second time, enters the polarizing beam splitter 1 again from the second side 12 after being adjusted by the third correcting lens group, and finally exits from the second side 13 after passing through the second polarizing beam splitter 1 as the adjusted second polarized light 43 has the polarization direction the same as the initial polarization direction of the first polarized light 42.
Since the second sub-imaging light and the first sub-imaging light are imaging light emitted from the same display image source (display source assembly 4), the second sub-imaging light and the first sub-imaging light must completely coincide in the light direction, and therefore, the optical axes of the first mirror 21 and the second mirror 23 need to be corrected at the time of assembly.
The present optical system further includes:
the first correcting lens group 3 is arranged on a third side 13 of the polarization beam splitter 1, and the third side 13 is opposite to the second side 12; the first correction lens group 3 is used for adjusting the light emitted from the third side 13 of the polarization beam splitter 1.
The first correction lens group 3 includes:
at least one first adjusting lens arranged on the third side 13 of the polarizing beam splitter 1.
Specifically, the first correcting lens group 3 may include a magnifying lens and an aberration correcting lens, where the aberration correcting lens is disposed on a side of the magnifying lens close to the human eye. The imaging light beam is used for amplifying and correcting aberration again on the final imaging light beam synthesized by the first sub imaging light beam and the second sub imaging light beam, so that the imaging light beam finally entering the human eye has a larger angle of view and higher imaging quality. The volume of the optical system in this embodiment is about 9.5mm x 12mm x 11mm, and the fov is 40 °.
The size of the volume of the optical system is generally proportional to the size of the FOV. As shown in fig. 6, in the prior art, the fov=40° of the optical system corresponds to a volume size of 17mm×14mm. From the volume data, the overall volume of the optical system in the present invention is smaller than that of the conventional optical system composed of a plurality of lens groups under the same FOV. In addition, in the length dimension of the optical system, the length of the existing optical system is 17mm, while the length of the optical system in the invention is only 9.5mm, which is obviously better than the length of the traditional optical path.
Since the polarizing beam splitter 1, the first reflecting mirror 21 and the second reflecting mirror 23 are used in the optical system of the present invention, the incident light can be reflected to the adjustment surface and reflected again after adjustment. Therefore, the light path can be folded greatly through reflection so as to repeatedly spread in the same space, and the occupation of the light propagation path to the space can be reduced. The optical system in the two prior arts adjusts the light by arranging a plurality of lenses in order on the light propagation path (left-to-right direction in fig. 6), and each lens adjusts the light propagation path by refraction only. Because the deflection folding amplitude of refraction to light is smaller than the deflection folding amplitude of reflected light, the light can not be repeatedly transmitted in the same space. This results in that the length of the conventional optical system in the propagation direction (longitudinal direction) of the light is much longer than the length of the optical system in the propagation direction (longitudinal direction) of the light.
As a possible embodiment of the present invention, as shown in fig. 3, the display source assembly 4 may also have the following forms, specifically including:
a light combining prism 41, wherein the light emitting side of the light combining prism 41 coincides with the fourth side 14; thus, the incident light finally combined by the light combining prism 41 is made incident on the fourth side 14 of the polarization beam splitter 1.
The three monochromatic display sources 40 are respectively disposed on any three sides of the light combining prism 41 except the outgoing side, and the light combining prism 41 is used for combining the monochromatic light outputted from each monochromatic display source 40 into incident light. The three monochromatic display sources 40 are respectively: a blue display source, a red display source, and a green display source. The three monochromatic display sources 40 may use a micolized display screen.
In this embodiment, the light is emitted from three monochromatic display sources 40 with three colors, and after entering the light combining prism 41, a plurality of monochromatic light can be combined into a final color incident light. Thereby, the arrangement form of the display source assembly 4 can be made more flexible. Meanwhile, the volume of the optical system in this embodiment is about 10mm×8mm×7mm, and the corresponding FOV (Field of View) is 30 °, and the volume and FOV are significantly better than those of the conventional optical path.
As a possible embodiment of the present invention, the radius of curvature of the first reflecting mirror 21 is 35.271mm and the center thickness is 0.5mm; the radius of curvature of the second reflecting mirror 23 is 34.745mm, and the center thickness is 0.35mm;
there is also provided a time division polarization rotator, which is arranged between the display source assembly 4 and the fourth side 14 of the polarization beam splitter 1, in particular a liquid crystal deflection device, which can be switched rapidly between the phase states 0 and pi/2, whereby a function of allowing only one polarization direction of the light emitted by the display source assembly 4 to pass, i.e. allowing only the first polarized light 42 or the second polarized light 43 to pass, is achieved, and a polarization polarizer is provided between the display source assembly 4 and the liquid crystal deflector, whereby an initial polarization state can be imparted to the display source assembly 4.
Specifically, in the present embodiment, the optical path lengths of the corresponding optical paths can be adjusted by adjusting the surface types of the first mirror 21 and the second mirror 23. Specifically, the virtual image distance of the final imaging of the optical path corresponding to the first mirror 21 may be set to 5m, and the virtual image distance of the optical path corresponding to the second mirror 23 may be set to 0.5m. And the imaging definition of the two images meets the imaging requirement, and the specific imaging definition is shown in fig. 4 and 5.
Then, in an actual use process, for example, in an application scene of 3D display, in order to ensure that different virtual image distances do not affect each other when imaging, it is necessary to selectively allow the first polarized light 42 or the second polarized light 43 to pass through by using a time division polarization rotator, so that a final imaging picture can be selectively switched between different virtual image distances. Specifically, if one imaging frame far from 5m needs to be displayed, the polarization state of the time division polarization rotator is adjusted to a state that the first polarized light 42 can transmit, so that the first polarized light 42 is finally emitted after passing through the optical path corresponding to the first reflecting mirror 21, and when one imaging frame far from 0.5m needs to be displayed, the polarization state of the time division polarization rotator is adjusted to a state that the second polarized light 43 can transmit, so that the second polarized light 43 is finally emitted after passing through the optical path corresponding to the second reflecting mirror 23, and if the corresponding imaging frames of the two imaging frames need to be displayed at the same time, the time division polarization rotator needs to be continuously switched between the two polarization states at a speed that is not perceived by human eyes, so that the final imaging frame is switched between the frames with virtual image distance of 5m and 0.5m at high frequency. And then the picture finally seen by the user has a 3D effect and is more real.
According to a second aspect of the present invention, there is provided a display device comprising:
an optical system as described above; and a housing, wherein the optical system is disposed in the housing.
The present invention is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. An optical system, comprising:
the polarization beam splitter is used for transmitting the first polarized light and reflecting the second polarized light, and the polarization directions of the first polarized light and the second polarized light are mutually perpendicular;
the first light ray adjusting component is arranged on a first side of the polarization beam splitter, and the first side is the side of the first polarized light transmitted out of the polarization beam splitter; the first light ray adjusting component is used for converting the first polarized light into first sub-polarized light and reflecting the first sub-polarized light into the polarization beam splitter again, and the polarization directions of the first sub-polarized light and the first polarized light are mutually perpendicular; the second light ray adjusting component is arranged on a second side of the polarization beam splitter, and the second side is the side of the second polarized light transmitted out of the polarization beam splitter; the second light ray adjusting component is used for converting the second polarized light into second sub-polarized light and reflecting the second sub-polarized light into the polarization beam splitter again, and the polarization directions of the second sub-polarized light and the second polarized light are mutually perpendicular.
2. An optical system according to claim 1, wherein the first light ray adjustment assembly comprises:
the first quarter wave plate is arranged on the first side of the polarization beam splitter; and the first reflecting mirror is arranged at one side of the first quarter wave plate far away from the polarization beam splitter.
3. An optical system according to claim 1, wherein the second light ray adjustment assembly comprises:
the second quarter wave plate is arranged on the second side of the polarization beam splitter; and the second reflecting mirror is arranged at one side of the second quarter wave plate far away from the polarization beam splitter.
4. An optical system as recited in claim 1, further comprising:
the first correcting lens group is arranged on a third side of the polarization beam splitter, and the third side is opposite to the second side; the first correcting lens group is used for adjusting the light rays emitted from the third side of the polarization beam splitter.
5. An optical system as recited in claim 4, wherein said first set of corrective lenses comprises:
and the at least one first adjusting lens is used for adjusting the light passing through the first adjusting lens so as to amplify and aberration correct an image formed by the light.
6. An optical system as recited in claim 1, further comprising:
the second correcting lens group is arranged on the first side and/or the second side of the polarization beam splitter and is used for adjusting the light passing through the first side and/or the second side.
7. An optical system as recited in claim 6, wherein said second set of corrective lenses comprises:
and the at least one second adjusting lens is used for adjusting the light rays passing through the second adjusting lens so as to amplify, correct the image quality, change the direction and display the composite processing of the image finally formed by the light rays.
8. An optical system as recited in claim 1, further comprising:
the display source assembly is arranged on a fourth side of the polarization beam splitter, and the fourth side is opposite to the first side; the display source assembly is used for providing incident light rays, and the incident light rays comprise first polarized light and second polarized light.
9. An optical system according to claim 8, wherein the display source assembly comprises:
a light combining prism, wherein the light emergent side of the light combining prism is overlapped with the fourth side; and three monochromatic display sources respectively arranged on any three sides except the emergent side of the light combining prism, wherein the light combining prism is used for combining monochromatic light output by each monochromatic display source into the incident light.
10. A display device, characterized by comprising:
the optical system of any one of claims 1 to 9; and a housing, the optical system being disposed within the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310826235.5A CN116560100A (en) | 2023-07-07 | 2023-07-07 | Optical system and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310826235.5A CN116560100A (en) | 2023-07-07 | 2023-07-07 | Optical system and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116560100A true CN116560100A (en) | 2023-08-08 |
Family
ID=87502171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310826235.5A Pending CN116560100A (en) | 2023-07-07 | 2023-07-07 | Optical system and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116560100A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201166742Y (en) * | 2008-03-17 | 2008-12-17 | 红蝶科技(深圳)有限公司 | High light effect tricolored light source monolithic type liquid crystal projecting system |
| CN208044203U (en) * | 2018-04-28 | 2018-11-02 | 北京京东方光电科技有限公司 | Display equipment, optical system and virtual reality wear display equipment |
| CN216561237U (en) * | 2021-12-29 | 2022-05-17 | 北京灵犀微光科技有限公司 | Optical imaging display system |
-
2023
- 2023-07-07 CN CN202310826235.5A patent/CN116560100A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201166742Y (en) * | 2008-03-17 | 2008-12-17 | 红蝶科技(深圳)有限公司 | High light effect tricolored light source monolithic type liquid crystal projecting system |
| CN208044203U (en) * | 2018-04-28 | 2018-11-02 | 北京京东方光电科技有限公司 | Display equipment, optical system and virtual reality wear display equipment |
| CN216561237U (en) * | 2021-12-29 | 2022-05-17 | 北京灵犀微光科技有限公司 | Optical imaging display system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11119322B2 (en) | Imaging display system | |
| US8305690B2 (en) | Collimating optical member for real world simulation | |
| US7675684B1 (en) | Compact optical system | |
| JP5190480B2 (en) | Light guide optical device | |
| US11269186B2 (en) | Augmented reality apparatus and method, and optical engine component | |
| US7690794B2 (en) | Image-combining device and projection display apparatus having image-combining devices incorporated therein | |
| US6672721B2 (en) | Projection system having low astigmatism | |
| US8388138B1 (en) | Projection display systems | |
| US8064137B2 (en) | Optical system for forming an image in space | |
| US10890776B1 (en) | Pancake lens ghosting mitigation | |
| WO2019041812A1 (en) | Display system and display method | |
| CN111487786A (en) | Optical display system, control method and display device | |
| CN111025658B (en) | Augmented reality optical module and augmented reality equipment | |
| CN214751111U (en) | Ultra-short distance ocular lens system | |
| CN111105735A (en) | All-solid-state holographic projector | |
| US20210157158A1 (en) | Method and system for projection display with polarization selective reflectors | |
| CN216622845U (en) | Augmented reality optical system and binocular optical system | |
| US11493800B2 (en) | Display panel with backreflection suppression comprising first and second birefringent layers and a reflectivity layer | |
| CN116560100A (en) | Optical system and display device | |
| US20230418068A1 (en) | Anamorphic directional illumination device | |
| US20230418034A1 (en) | Anamorphic directional illumination device | |
| US20230107434A1 (en) | Geometrical waveguide illuminator and display based thereon | |
| WO2023056083A1 (en) | Geometrical waveguide illuminator and display based thereon | |
| CN117111303A (en) | Projection display system and head-mounted display device | |
| TW202235979A (en) | Display panel with backreflection suppression |
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 |