CN207318847U - A kind of augmented reality optical system - Google Patents
A kind of augmented reality optical system Download PDFInfo
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- CN207318847U CN207318847U CN201721136007.1U CN201721136007U CN207318847U CN 207318847 U CN207318847 U CN 207318847U CN 201721136007 U CN201721136007 U CN 201721136007U CN 207318847 U CN207318847 U CN 207318847U
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- reflection
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- augmented reality
- optical system
- plane mirror
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Abstract
Problem to be solved in the utility model is：A kind of augmented reality optical system is provided, formed including miniscope, back light system, Amici prism, lens group, speculum, plane mirror and diaphragm, the light that the back light system is sent passes sequentially through Amici prism, miniscope, Amici prism, lens group, plane mirror, speculum and eventually enters into diaphragm；The miniscope is LCOS miniscopes；The back light system is the device that miniscope provides backlighting for；3 transmission planes and a half-reflection and half-transmission face are included at least on the Amici prism.Beneficial effect is：Emergent pupil away from it is reasonable the advantages of, can ensure that user sees image clear, that distortion is small in big field range；Also have the advantages that field angle is big, eye moves that scope is big, full filed aberration correction is good, user is not likely to produce asthenopia in use, has outstanding visual experience, adds the scope of application of product；It is the utility model delicate structure, succinct, compact, make product lightweight.
Description
Technical field
The utility model design augmented reality field, more particularly to a kind of augmented reality optical system.
Background technology
In recent years, augmented reality (Augmented Reality, abbreviation AR) display device is fast-developing, due to the system
Belong to helmet system, thus it must compact-sized and lightweight, to strengthen the comfort level of user.Shown for augmented reality
Device, big visual field is extremely important, and big visual field can increase the feeling of immersion of user, allows the viewer to farthest observe high-quality
Dynamic image.Compact and light-weighted structure can greatly strengthen the comfort of wearer, and suitable emergent pupil is away from can make
Observer wears other visual systems (such as near-sighted glasses) and is used, and adds the scope of application of the system to wearer.But light
The visual field of system, emergent pupil condition each other away from, structural parameters such as big exit pupil diameter, short focus, while meet that above-mentioned condition exists
Sizable difficulty.
Therefore, it is badly in need of providing a kind of augmented reality optical system that can meet compact-sized light big visual field at the same time.
Utility model content
Problem to be solved in the utility model is：A kind of augmented reality optical system is provided.
The technical solution of the utility model is as follows：A kind of augmented reality optical system, it is characterised in that：Including miniature display
Device, back light system, Amici prism, lens group, speculum, plane mirror and diaphragm composition, the light that the back light system is sent is successively
Diaphragm is eventually entered into by Amici prism, miniscope, Amici prism, lens group, plane mirror, speculum；
The miniscope is LCOS miniscopes；
The back light system is the device that miniscope provides backlighting for；
3 transmission planes and a half-reflection and half-transmission face are included at least on the Amici prism；
The lens group is made of 3 to 6 lens, and the total focal length of the lens group is between 1-30mm；
The speculum is curved reflector, and first surface reflecting surface and the second camber reflection are included on the speculum
Face；
The two sides of the plane mirror is respectively the first plane mirror surface and the second plane mirror surface.
The diaphragm is to light filtration.Human eye is directly observed, then pupil is diaphragm.
Further, the LCOS miniscopes size is between 0.1inch-5inch.
Further, the light source of the back light system is monochrome LCD, multi-colored led, one-wavelength laser, Multi Colour Lasers therein one
Kind or a variety of mix.
Further, the Amici prism is equipped with the first prism transmission face, the second prism transmission face, prism transmission plane
With prism half-reflection and half-transmission face.
Further, the first prism transmission face, the second prism transmission face, be coated with prism transmission plane it is anti-reflection
Film；The prism half-reflection and half-transmission face surface is coated with part reflective semitransparent film.
Further, in the lens of the composition lens group, including at least lens of the Abbe number less than 30, an Abbe
Lens of the number more than 30；And including at least the lens that a focal length is the lens of negative, a focal length is positive number；And at least one
The face type in one face of a lens meets the free form surface equation of axial symmetry face type.
Further, at least one in the first surface reflecting surface and the second curved-surface reflection side meets axial symmetry face type
Free form surface equation；One of them in the first surface reflecting surface and the second curved-surface reflection side is coated with anti-reflection film, another plating
There is part reflective semitransparent film.
Further, the first plane mirror surface and the second plane mirror surface one of them be coated with anti-reflection film, another plating
There is part reflective semitransparent film.
Further, side of the lens group away from Amici prism, which is equipped with, is used for dust-proof catch.
Further, the catch is the catch of glass material.
The beneficial effects of the utility model are：Emergent pupil away from it is reasonable the advantages of, user can be ensured in big field range
Inside see image clear, that distortion is small；Also have the advantages that field angle is big, eye moves that scope is big, full filed aberration correction is good, use
Family is not likely to produce asthenopia in use, has outstanding visual experience, adds the scope of application of product；This practicality is new
It is type delicate structure, succinct, compact, make product lightweight.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the schematic diagram of plane mirror in Fig. 1.
Fig. 3 is the schematic diagram of speculum in Fig. 1.
Fig. 4 is the schematic diagram of Amici prism in Fig. 1.
Wherein：
1st, diaphragm, 2, plane mirror
3rd, speculum, 4, lens group,
5th, Amici prism, 6, back light system,
7th, wechat display, 8, catch,
21st, the first plane mirror surface, the 22, second plane mirror surface,
31st, first surface reflecting surface, the 32, second curved-surface reflection side,
51st, the first prism transmission face, the 52, second prism transmission face,
53rd, prism transmission plane, 54, prism half-reflection and half-transmission face.
Embodiment
Brief description is made to four kinds of embodiments of the utility model below in conjunction with the accompanying drawings.
In following four embodiment, lens group 4 is formed by 3 lens, wherein a piece of is that focal length is just and Abbe number
Spherical lens (sphere, the face type of the rotational symmetry such as aspherical all meet the equation of free form surface) more than 30, it is a piece of be focal length
For lens of the negative and Abbe number less than 30, it is last it is a piece of be focal length be just and Abbe number be more than 30 lens.
The uniform light spots that back light system 7 produces, enter Amici prism 5, in the second prism by the first prism transmission face 51
A half reflection at transmission plane 52, a half transmitting, reflection obtain light and are radiated at miniature display through the outgoing of prism transmission plane 53
On device 7, then reflected through miniscope 7, the light after reflection enters Amici prism 5 through prism transmission plane 53, the
A half reflection at two prism transmission faces 52, a half transmitting, transmitted light enter lens group by the outgoing of prism half-reflection and half-transmission face 54, pass through
Cross in lens group 4 after the refraction of each lens, plane mirror 2 is reached through catch 8.
Embodiment one：
If plate semi-transparent semi-reflecting film on the second plane mirror surface 22, light half reflection at the second plane mirror surface 22,
One half transmitting, the light of reflection continue to travel to first surface reflecting surface 31.If go out to plate in first surface reflecting surface 31 semi-transparent semi-reflecting
During film, light half reflection at first surface reflecting surface 31, a half transmitting, the light of reflection continues to travel to the second plane mirror table
At face 22, light half reflection at the second plane mirror surface 22, a half transmitting.Transmitted ray goes out through the first plane mirror surface 21
Penetrate, then pass through diaphragm 1.
Embodiment two：
If plate semi-transparent semi-reflecting film on the first plane mirror surface 21, light transmits at the second plane mirror surface 22, then
A half reflection at first plane mirror surface 21 again, a half transmitting, the light of reflection continue to travel to first surface through transmiting at face 22
Reflecting surface 31.If when first surface reflecting surface 31 goes out and plates semi-transparent semi-reflecting film, light half at first surface reflecting surface 31 is anti-
Penetrate, a half transmitting, the light of reflection continues to travel at the second plane mirror surface 22, and light transmits at the second plane mirror surface 22
One half reflection, a half transmitting.Then diaphragm 1 is passed through in 21 1 half reflection of face, a half transmitting, transmitted light.
Embodiment three：
If plate semi-transparent semi-reflecting film on the second plane mirror surface 22, light half reflection at face 22, a half transmitting, reflection
Light continue to travel to first surface reflecting surface 31.If when the second curved-surface reflection side 32 plates semi-transparent semi-reflecting film, light is first
Transmitted at curved-surface reflection side 31, a then half reflection at the second curved-surface reflection side 32 again, a half transmitting, the light of reflection is bent through first
Transmitted at face reflecting surface 31, continue to travel to the second plane mirror surface 22, light half reflection at the second plane mirror surface 22,
One half transmitting.Transmitted ray is emitted through the first plane mirror surface 21, then passes through diaphragm 1.
Example IV：
If plate semi-transparent semi-reflecting film on the first plane mirror surface 21, light transmits at the second plane mirror surface 22, then
A half reflection at first plane mirror surface 21 again, a half transmitting, the light of reflection at the second plane mirror surface 22 through transmiting after resuming
It is multicast to first surface reflecting surface first surface reflecting surface 31.If when the second curved-surface reflection side 32 plates semi-transparent semi-reflecting film, light exists
Transmitted at first surface reflecting surface 31, a then half reflection at the second curved-surface reflection side 32, a half transmitting, the light of reflection is through the
Transmitted at one curved-surface reflection side 31, the light of reflection continues to travel at the second plane mirror surface 22, and light is in the second plane mirror table
A half reflection, a half transmitting are transmitted at face 22.Then lead in 21 1 half reflection of the first plane mirror surface, a half transmitting, transmitted light
Cross diaphragm 1.
Four embodiments of the utility model are described in detail above, but the content is only the utility model
Preferred embodiment, it is impossible to be construed as limiting the scope of the utility model.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should all still belong within the patent covering scope of the utility model.
Claims (10)
- A kind of 1. augmented reality optical system, it is characterised in that：Including miniscope, back light system, Amici prism, lens Group, speculum, plane mirror and diaphragm composition, the light that the back light system is sent pass sequentially through Amici prism, miniscope, divide Light prism, lens group, plane mirror, speculum eventually enter into diaphragm；The miniscope is LCOS miniscopes；The back light system is the device that miniscope provides backlighting for；3 transmission planes and a half-reflection and half-transmission face are included at least on the Amici prism；The lens group is made of 3 to 6 lens, and the total focal length of the lens group is between 1-30mm；The speculum is curved reflector, and first surface reflecting surface and the second curved-surface reflection side are included on the speculum；The two sides of the plane mirror is respectively the first plane mirror surface and the second plane mirror surface.
- A kind of 2. augmented reality optical system according to claim 1, it is characterised in that the LCOS miniscopes ruler It is very little between 0.1inch-5inch.
- 3. a kind of augmented reality optical system according to claim 1, it is characterised in that the light source of the back light system is Monochromatic LCD, multi-colored led, one-wavelength laser, Multi Colour Lasers one or more therein mix.
- 4. a kind of augmented reality optical system according to claim 1, it is characterised in that the Amici prism is equipped with the One prism transmission face, the second prism transmission face, prism transmission plane and prism half-reflection and half-transmission face.
- 5. a kind of augmented reality optical system according to claim 4, it is characterised in that the first prism transmission face, Anti-reflection film is coated with two prism transmission faces, prism transmission plane；The prism half-reflection and half-transmission face surface is coated with half-reflection and half-transmission Film.
- A kind of 6. augmented reality optical system according to claim 1, it is characterised in that the lens of the composition lens group In, including at least lens of the Abbe number less than 30, lens of the Abbe number more than 30；And it is including at least a focal length The lens of negative, the lens that a focal length is positive number；And the face type in a face of at least one lens meets axial symmetry face type Free form surface equation.
- A kind of 7. augmented reality optical system according to claim 1, it is characterised in that the first surface reflecting surface and At least one in second curved-surface reflection side meets the free form surface equation of axial symmetry face type；The first surface reflecting surface and One of them in two curved-surface reflection sides is coated with anti-reflection film, another is coated with part reflective semitransparent film.
- A kind of 8. augmented reality optical system according to claim 1, it is characterised in that the first plane mirror surface and One of them is coated with anti-reflection film on the second plane mirror surface, another is coated with part reflective semitransparent film.
- 9. a kind of augmented reality optical system according to claim 1, it is characterised in that the lens group is away from light splitting rib The side of mirror, which is equipped with, is used for dust-proof catch.
- 10. a kind of augmented reality optical system according to claim 9, it is characterised in that the catch is glass material Catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136007.1U CN207318847U (en) | 2017-09-06 | 2017-09-06 | A kind of augmented reality optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136007.1U CN207318847U (en) | 2017-09-06 | 2017-09-06 | A kind of augmented reality optical system |
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| Publication Number | Publication Date |
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| CN207318847U true CN207318847U (en) | 2018-05-04 |
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ID=62385713
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721136007.1U Active CN207318847U (en) | 2017-09-06 | 2017-09-06 | A kind of augmented reality optical system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966812A (en) * | 2017-09-06 | 2018-04-27 | 上海影创信息科技有限公司 | A kind of augmented reality optical system |
| CN110646940A (en) * | 2019-09-29 | 2020-01-03 | 上海意扬数码科技有限公司 | Folding optical system for motorcycle helmet |
| CN113325566A (en) * | 2021-08-02 | 2021-08-31 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| CN113325567A (en) * | 2021-08-02 | 2021-08-31 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| CN113341557A (en) * | 2021-08-02 | 2021-09-03 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| CN113341559A (en) * | 2021-08-02 | 2021-09-03 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
-
2017
- 2017-09-06 CN CN201721136007.1U patent/CN207318847U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966812A (en) * | 2017-09-06 | 2018-04-27 | 上海影创信息科技有限公司 | A kind of augmented reality optical system |
| CN110646940A (en) * | 2019-09-29 | 2020-01-03 | 上海意扬数码科技有限公司 | Folding optical system for motorcycle helmet |
| CN113325566A (en) * | 2021-08-02 | 2021-08-31 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| CN113325567A (en) * | 2021-08-02 | 2021-08-31 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| CN113341557A (en) * | 2021-08-02 | 2021-09-03 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| CN113341559A (en) * | 2021-08-02 | 2021-09-03 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| CN113341557B (en) * | 2021-08-02 | 2022-08-02 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| CN113341559B (en) * | 2021-08-02 | 2022-08-05 | 深圳纳德光学有限公司 | Reflective eyepiece optical system and head-mounted near-to-eye display device |
| US11550142B1 (en) | 2021-08-02 | 2023-01-10 | Shenzhen NED Optics Co., lTD | Reflective eyepiece optical system and head-mounted near-to-eye display device |
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Effective date of registration: 20221226 Granted publication date: 20180504 |
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