CN205982837U - Optical system with projection and function of visualing - Google Patents
Optical system with projection and function of visualing Download PDFInfo
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- CN205982837U CN205982837U CN201620991053.9U CN201620991053U CN205982837U CN 205982837 U CN205982837 U CN 205982837U CN 201620991053 U CN201620991053 U CN 201620991053U CN 205982837 U CN205982837 U CN 205982837U
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Abstract
The utility model provides an optical system with projection and function of visualing, this optical system sets up on head mounted device, includes: display module, the 2nd polarization splitting prism, the 3rd polarization splitting prism, projector lens group, reflection lens group and liquid crystal cell, the liquid crystal cell is fixed to be set up between display module and the 3rd polarization splitting prism, the 2nd polarization splitting prism sets up the one side of keeping away from the liquid crystal cell in the 3rd polarization splitting prism, reflection lens group sets up the one side of keeping away from the 3rd polarization splitting prism in the 2nd polarization splitting prism, and projector lens group sets up the one side of keeping away from people's eye in the 3rd polarization splitting prism. The projection can be realized to the liquid crystal cell and the merit transformation of energy of visualing through increasing in this application, can make the user see the external image clearly simultaneously, has simple structure, convenient to use's characteristics, has integrateed the projection function at wear -type optical system and can improve user experience.
Description
Technical field
The application is related to wear-type visual device field, particularly to a kind of be applied to headset equipment have projection and
The visually optical system of function.
Background technology
The optical system of wear-type visual device (Head Mount Display, HMD) of the prior art includes showing
Device, collimating lens and reflecting surface.Display, such as LCD, OLED, LCOS etc., different light are sent according to the difference of display image,
It is imaged at infinity by collimating lens, be then reflected in the eyes of people by the light that reflecting surface sends display.
But wear-type visual device single function of the prior art, only sees display in wear-type visual device for individual conception
Content play by device, does not have and shares (projection) function.In view of headset equipment size is limited, increases new light path and realize projection work(
Can there is certain difficulty, increasing light path can increase multiple opticses, thus the cost of equipment can be increased.
Utility model content
The application provides a kind of optical system with projection and visual function, can for solving wear-type in prior art
Depending on equipment, there is no projecting function, the problem of poor user experience.
In order to solve above-mentioned technical problem, the technical scheme of the application a kind of has projection and visual function for providing
Optical system, is arranged in headset equipment, including：Display module, the second polarization splitting prism, the 3rd polarization splitting prism,
Projection lens set, mirror lens group and liquid crystal cell；
Described liquid crystal cell is fixedly installed between described display module and described 3rd polarization splitting prism；
Described second polarization splitting prism is arranged at the side away from described liquid crystal cell for described 3rd polarization splitting prism；
Described mirror lens group is arranged at described second polarization splitting prism away from the one of described 3rd polarization splitting prism
Side, described projection lens set is arranged at the side away from human eye for described 3rd polarization splitting prism；
During liquid crystal cell pressurization, the polarization light that described display module sends sequentially passes through transmission and the institute of described liquid crystal cell
That states the 3rd polarization splitting prism is reflected into described projection lens set；
During the disconnected pressure of liquid crystal cell, the polarization light that described display module sends sequentially passes through described liquid crystal cell and changes polarization shape
State, described 3rd polarization splitting prism and the second polarization splitting prism be transmitted into described mirror lens group, through described anti-
Penetrate lens group reflection and change polarization state, described second polarization splitting prism be reflected into human eye.
The further aspect of the present embodiment, also includes the first polarization splitting prism, for receiving the figure that display module sends
As polarized light, and reflexed in liquid crystal cell；
Described liquid crystal cell is fixedly installed between described first polarization splitting prism and the 3rd polarization splitting prism.
The further aspect of the present embodiment, described headset equipment includes intelligent glasses and intelligent helmet.
The further aspect of the present embodiment, also includes lamp guide, is arranged at liquid crystal cell and described 3rd polarization splitting prism
Between.
The further aspect of the present embodiment, the lateral wall of described lamp guide is provided with anti-reflection film, is used for being lowered into leading
The veiling glare of optical wand.
Another technical scheme of the application is a kind of optical system with projection and visual function, is arranged at headset equipment
On, including：Display module, the first polarization splitting prism, the second polarization splitting prism, the 3rd polarization splitting prism, projecting lens
Group and mirror lens group；
Described 3rd polarization splitting prism is arranged between the first polarization splitting prism and the second polarization splitting prism, with
Two polarization splitting prisms are fixedly connected, and are rotatably connected with the first polarization splitting prism, and described first polarization splitting prism is with
The central shaft of three polarization splitting prisms is center of rotation, and described first polarization splitting prism can up time together with described display module
Pin ratates 90 degrees and/or 90 degree of rotate counterclockwise；
Described mirror lens group is arranged at described second polarization splitting prism away from the one of described 3rd polarization splitting prism
Side, described projection lens set is arranged at the side away from human eye for described 3rd polarization splitting prism；
When described first polarization splitting prism does not rotate, the image light that described display module sends is through the described first polarization
The reflection of Amici prism and described 3rd polarization splitting prism be reflected into described projection lens set；
When described first polarization splitting prism is ratated 90 degrees together with described display module, the figure that described display module sends
As light sequentially passes through the reflection of the described first polarization splitting prism, transmission of described 3rd polarization splitting prism, described second inclined
That shakes Amici prism is transmitted into described mirror lens group, through the reflection of described mirror lens group and change polarization state, described
Second polarization splitting prism be reflected into human eye.
The further aspect of the present embodiment, described headset equipment includes intelligent glasses and intelligent helmet.
The further aspect of the present embodiment, also includes lamp guide, is arranged at the first polarization splitting prism inclined with the described 3rd
Shake between Amici prism.
The further aspect of the present embodiment, the lateral wall of described lamp guide is provided with anti-reflection film, is used for being lowered into leading
The veiling glare of optical wand.
It is inclined that the application realizes image light by increase liquid crystal cell or design rotating mechanism (rotation the first polarization splitting prism)
Changing such that it is able to realize projection and the conversion of visual function of state of shaking, can make user see external image clearly simultaneously.Have
Structure feature simple, easy to use, is integrated with projecting function in wear-type optical system and can improve Consumer's Experience.
Brief description
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the optical system projecting function light channel structure figure of the application one embodiment；
Fig. 2 is the optical system visual function light channel structure figure of the application one embodiment；
Fig. 3 is the optical system projecting function light channel structure figure of the application one embodiment；
Fig. 4 is the optical system visual function light channel structure figure of the application one embodiment；
Fig. 5 is the optical system projecting function light channel structure figure of the application one embodiment；
Fig. 6 is the optical system projecting function light channel structure figure of the application one embodiment；
Fig. 7 is the optical system visual function light channel structure figure of the application one embodiment；
Fig. 8 is the optical system projecting function light channel structure figure of the application one embodiment.
Reference numeral explanation：
101：Display module； 102：First polarization splitting prism；
104：Second polarization splitting prism； 105：Projection lens set；
106：Mirror lens group； 107：3rd polarization splitting prism；
108：Liquid crystal cell； 109：Lamp guide；
20：Human eye； 40：The central shaft of the 3rd polarization splitting prism.
Specific embodiment
In the description of this specification, reference term " embodiment ", " specific embodiment ", " some enforcements
The description of example ", " such as ", " example ", " specific example " or " some examples " etc. means to describe with reference to this embodiment or example
Specific features, structure or feature are contained at least one embodiment or the example of the application.In this manual, to above-mentioned
The schematic representation of term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure or spy
Point can combine in any one or more embodiments or example in an appropriate manner.The step being related in each embodiment is suitable
Sequence is used for schematically illustrating the enforcement of the application, and sequence of steps therein is not construed as limiting, and can appropriately adjust as needed.
The schematic description and description of the application is used for explaining the application, but is not intended as the restriction to the application.
In addition, element/the component of same or like label used in drawings and the embodiments is used to represent same or like portion
Point.
With regard to " first ", " second " used in this application ... etc., not especially censure the meaning of order or cis-position,
Also it is not used to limit the application, it is only for difference with the element of constructed term description or operation.
With regard to "comprising" used in this application, " inclusion ", " having ", " containing " etc., be opening term,
Mean including but not limited to.
The optical system with projection and visual function described herein is arranged in headset equipment so that wear-type
Equipment has projection and visual function simultaneously, ensure that user sees external image clearly simultaneously, wherein, headset equipment include but
It is not limited to intelligent glasses and intelligent helmet.
As shown in Figure 1 and Figure 2, Fig. 1 is the optical system projecting function light channel structure figure of the application one embodiment, and Fig. 2 is this
Apply for the optical system visual function light channel structure figure of an embodiment.
Specifically, there is projection and the optical system of visual function includes：Display module 101, the second polarization splitting prism
104th, the 3rd polarization splitting prism 107, projection lens set 105, mirror lens group 106 and liquid crystal cell 108.
Liquid crystal cell 108 is fixedly installed between display module 101 and the 3rd polarization splitting prism 107.
Second polarization splitting prism 104 is arranged at the side away from described liquid crystal cell 108 for the 3rd polarization splitting prism 107.
Mirror lens group 106 is arranged at the side away from the 3rd polarization splitting prism 107 for second polarization splitting prism 104,
Projection lens set 105 is arranged at the side away from human eye for the 3rd polarization splitting prism 107.
As shown in figure 1, during liquid crystal cell pressurization, the polarization light that described display module 101 sends sequentially passes through described liquid
The transmission of brilliant box 108 and described 3rd polarization splitting prism 107 be reflected into described projection lens set 105, thus realizing throwing
Shadow function.
As shown in Fig. 2 liquid crystal cell breaks during pressure, the polarization light that described display module 101 sends sequentially passes through described liquid
What brilliant box 108 changed polarization state, described 3rd polarization splitting prism 107 and the second polarization splitting prism 104 is transmitted into institute
State mirror lens group 106, through reflection and change polarization state, described second polarization splitting prism of described mirror lens group 106
104 be reflected into human eye 20, thus realizing visual function.In view of the second Amici prism away from human eye side be not provided with any
Lens, make user see external image clearly so the present embodiment ensure that during visual function.
Specifically, the light that display module 101 sends has polarizability, can be LCOS display chip.Liquid crystal cell is adding
During pressure, will not be changed by the polarization state of the light of liquid crystal cell, during liquid crystal cell off voltage, liquid crystal cell is inclined to the light passing through
Polarization state has individual optical activity, changes the polarization state of light, is such as become for S-polarization light by P polarization light.
Further, the integrated light with projection and visual function described herein in headset equipment for convenience
System, as shown in Figure 3, Figure 4, also includes the first polarization splitting prism 102 on the basis of Fig. 1, embodiment illustrated in fig. 2, uses
The image light sending in reception display module 101, and reflexed in liquid crystal cell 108.Described liquid crystal cell 108 is fixedly installed on
Between described first polarization splitting prism 102 and the 3rd polarization splitting prism 107.
Further, described herein there is projection and visual function for the ease of integrated in headset equipment
Optical system, as shown in figure 5, also including lamp guide 109 on the basis of Fig. 1, embodiment illustrated in fig. 2, is arranged at liquid crystal cell 108
And described 3rd polarization splitting prism 107 between.
Further, in order to be lowered into the veiling glare of lamp guide, the lateral wall of described lamp guide 109 is provided with anti-reflection
Film.
As shown in Figure 6, Figure 7, the optical system projecting function light channel structure figure of another embodiment of Fig. 6 the application, Fig. 7 is this
Apply for the optical system visual function light channel structure figure of another embodiment.
Specifically, there is projection and the optical system of visual function includes：Display module 101, the first polarization splitting prism
102nd, the second polarization splitting prism 104, the 3rd polarization splitting prism 107, projection lens set 105 and mirror lens group 106.
Described 3rd polarization splitting prism 107 is arranged at the first polarization splitting prism 102 and the second polarization splitting prism 104
Between, it is fixedly connected with the second polarization splitting prism 104, is rotatably connected with the first polarization splitting prism 102, described first is inclined
Shake Amici prism 102 with the central shaft 40 of the 3rd polarization splitting prism as center of rotation, described first polarization splitting prism 102 with
Described display module 101 can turn 90 degrees and/or 90 degree of (rotations of the first polarization splitting prism of rotate counterclockwise together in dextrorotation
Direction is as shown in rotation arrows direction on the right side of Fig. 6).
Described mirror lens group 106 is arranged at described second polarization splitting prism 104 away from described 3rd polarization spectro rib
The side of mirror 107, described projection lens set 105 is arranged at the side away from human eye for described 3rd polarization splitting prism 107.
The application passes through to increase liquid crystal cell, realizes the change of image light polarization state such that it is able to realize projecting and visual
The conversion of function, can make user see external image clearly simultaneously.Have the characteristics that structure is simple, easy to use, in wear-type light
Learn system integration projecting function and can improve Consumer's Experience.
As shown in fig. 6, when described first polarization splitting prism 102 does not rotate, the image light that described display module 101 sends
It is reflected into described projection through the reflection of described first polarization splitting prism 102 and described 3rd polarization splitting prism 107
Lens group 105, thus realize projecting function.
As shown in fig. 7, when described first polarization splitting prism 102 is ratated 90 degrees together with described display module 101, described
The image light that display module 101 sends sequentially passes through the reflection of described first polarization splitting prism 102, described 3rd polarization spectro
The transmission of prism 107, described second polarization splitting prism 104 be transmitted into described mirror lens group 106, through described reflection
The reflection of lens group 106 and change polarization state, described second polarization splitting prism 104 be reflected into human eye 20, thus realizing
Visually function.In view of the second Amici prism is not provided with any lens away from the side of human eye, so the present embodiment ensure that mesh
User is made to see external image clearly during visual function.
Specifically, display module described in the present embodiment be OLED (Organic Light-Emitting Diode,
OLED) display, LCD (Liquid Crystal Display, LCD) display and LCOS (Liquid Crystal on
Silicon, LCS) any one in display, when for LCOS display, optical system also includes light source, and this light source is used for
Produce light to excite LCOS to send image light.
During enforcement, mirror lens group may include quarter wave plate, and this quarter wave plate is used for changing the polarization state of light, such as light warp twice
After crossing this quarter wave plate, P polarization light is changed into from S-polarization light.
Polarization splitting prism includes the first corner cube prism, polarization beam splitter and the second corner cube prism, and polarization beam splitter is fixed
It is arranged between the reflecting surface of the first corner cube prism and the reflecting surface of the second corner cube prism.
Polarization splitting prism has the characteristic of the polarization state of adjustment light, when a natural light incides on polarization splitting prism
When, P polarization light can be passed through, reflect S-polarization light.
When the first polarization splitting prism in the present embodiment does not rotate, by the first polarization splitting prism reflection light to the 3rd
For polarization splitting prism, polarization state does not change, then can to reflect the first polarization splitting prism anti-for the 3rd polarization splitting prism
The light penetrated.After the first polarization splitting prism in the present embodiment ratates 90 degrees, by the first polarization splitting prism reflection light to the
3rd, for the second polarization splitting prism, polarization state have rotated 90 degree, then the three, the second polarization splitting prisms can pass through first inclined
Shake Amici prism reflected light.
The present embodiment by rotate the first polarization splitting prism be capable of image light polarization state change such that it is able to
Realize projection and the conversion of visual function, ensure that human eye sees external image clearly simultaneously, there is structure simple, easy to use
Feature, can improve Consumer's Experience in the integrated projecting function of the optical system of headset equipment.
Further, for the ease of the light with projection and visual function described herein integrated in headset equipment
System, as shown in figure 8, also including lamp guide 109 on the basis of Fig. 6, embodiment illustrated in fig. 7, being arranged at the first polarization and dividing
Between light prism 102 and described 3rd polarization splitting prism 107.
Further, in order to be lowered into the veiling glare of lamp guide, the lateral wall of described lamp guide 109 is provided with anti-reflection
Film.
Further, in order to reduce processing technique, described first polarization splitting prism 102 is with described lamp guide 109 integrally
Molding.
Lamp guide described herein is glass square rod or plastics square rod, for adjusting the focal length of whole system, lamp guide
Size can be designed according to the actual requirements, the application is not construed as limiting to this.
The application passes through to design rotating mechanism (rotation the first polarization splitting prism) it is achieved that the changing of image light polarization state
Become such that it is able to realize projection and the conversion of visual function, user can be made simultaneously to see external image clearly.Have structure simple,
Feature easy to use, is integrated with projecting function in wear-type optical system and can improve Consumer's Experience.
The above is merely to illustrate the technical scheme of the application, any those of ordinary skill in the art all can without prejudice to
Spirit herein and under the scope of, above-described embodiment is modified and is changed.Therefore, the rights protection scope of the application should regard
Right is defined.
Claims (9)
1. a kind of optical system with projection and visual function is it is characterised in that be arranged in headset equipment, including：Aobvious
Show module (101), the second polarization splitting prism (104), the 3rd polarization splitting prism (107), projection lens set (105), reflection
Lens group (106) and liquid crystal cell (108)；
Described liquid crystal cell (108) be fixedly installed on described display module (101) and described 3rd polarization splitting prism (107) it
Between；
Described second polarization splitting prism (104) is arranged at described 3rd polarization splitting prism (107) away from described liquid crystal cell
(108) side；
Described mirror lens group (106) is arranged at described second polarization splitting prism (104) away from described 3rd polarization spectro rib
The side of mirror (107), described projection lens set (105) is arranged at described 3rd polarization splitting prism (107) away from the one of human eye
Side；
During liquid crystal cell pressurization, the polarization light that described display module (101) sends sequentially passes through the saturating of described liquid crystal cell (108)
Penetrate and described 3rd polarization splitting prism (107) be reflected into described projection lens set (105)；
During the disconnected pressure of liquid crystal cell, the polarization light that described display module (101) sends sequentially passes through described liquid crystal cell (108) and changes
Polarization state, described 3rd polarization splitting prism (107) and the second polarization splitting prism (104) be transmitted into described reflection thoroughly
Microscope group (106), through reflection and change polarization state, described second polarization splitting prism (104) of described mirror lens group (106)
Be reflected into human eye (20).
2. the optical system as claimed in claim 1 with projection and visual function is it is characterised in that also include the first polarization
Amici prism (102), for receiving the polarization light that display module (101) sends, and is reflexed to liquid crystal cell (108)
In；
Described liquid crystal cell (108) is fixedly installed on described first polarization splitting prism (102) and the 3rd polarization splitting prism (107)
Between.
3. there is the optical system of projection and visual function as claimed in claim 1 it is characterised in that described headset equipment
Including intelligent glasses and intelligent helmet.
4. the optical system as claimed in claim 1 with projection and visual function is it is characterised in that also include lamp guide
(109), it is arranged between liquid crystal cell (108) and described 3rd polarization splitting prism (107).
5. there is the optical system of projection and visual function as claimed in claim 4 it is characterised in that described lamp guide
(109) it is provided with anti-reflection film on lateral wall, for being lowered into the veiling glare of lamp guide.
6. a kind of optical system with projection and visual function is it is characterised in that be arranged in headset equipment, including：Aobvious
Show module (101), the first polarization splitting prism (102), the second polarization splitting prism (104), the 3rd polarization splitting prism
(107), projection lens set (105) and mirror lens group (106)；
Described 3rd polarization splitting prism (107) is arranged at the first polarization splitting prism (102) and the second polarization splitting prism
(104) between, it is fixedly connected with the second polarization splitting prism (104), be rotatably connected with the first polarization splitting prism (102),
, with the central shaft (40) of the 3rd polarization splitting prism as center of rotation, described first is inclined for described first polarization splitting prism (102)
The Amici prism (102) that shakes can be turn 90 degrees and/or 90 degree of rotate counterclockwise together with described display module (101) in dextrorotation；
Described mirror lens group (106) is arranged at described second polarization splitting prism (104) away from described 3rd polarization spectro rib
The side of mirror (107), described projection lens set (105) is arranged at described 3rd polarization splitting prism (107) away from the one of human eye
Side；
When described first polarization splitting prism (102) does not rotate, image light that described display module (101) sends is through described
The reflection of one polarization splitting prism (102) and described 3rd polarization splitting prism (107) be reflected into described projection lens set
(105)；
When described first polarization splitting prism (102) is ratated 90 degrees together with described display module (101), described display module
(101) image light sending sequentially passes through the reflection of described first polarization splitting prism (102), described 3rd polarization splitting prism
(107) transmission, described second polarization splitting prism (104) be transmitted into described mirror lens group (106), through described anti-
Penetrate lens group (106) reflection and change polarization state, described second polarization splitting prism (104) be reflected into human eye (20).
7. there is the optical system of projection and visual function as claimed in claim 6 it is characterised in that described headset equipment
Including intelligent glasses and intelligent helmet.
8. the optical system as claimed in claim 6 with projection and visual function is it is characterised in that also include lamp guide
(109), it is arranged between the first polarization splitting prism (102) and described 3rd polarization splitting prism (107).
9. the optical system with projection and visual function stated as claim 8 is it is characterised in that described lamp guide (109)
Lateral wall on be provided with anti-reflection film, for being lowered into the veiling glare of lamp guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620991053.9U CN205982837U (en) | 2016-08-30 | 2016-08-30 | Optical system with projection and function of visualing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620991053.9U CN205982837U (en) | 2016-08-30 | 2016-08-30 | Optical system with projection and function of visualing |
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| Publication Number | Publication Date |
|---|---|
| CN205982837U true CN205982837U (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620991053.9U Active CN205982837U (en) | 2016-08-30 | 2016-08-30 | Optical system with projection and function of visualing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797275A (en) * | 2016-08-30 | 2018-03-13 | 北京亮亮视野科技有限公司 | It is a kind of that there is projection and the visually optical system of function |
| WO2019242231A1 (en) * | 2018-06-19 | 2019-12-26 | 联想(北京)有限公司 | Head-mounted display device and method used for head-mounted display device |
-
2016
- 2016-08-30 CN CN201620991053.9U patent/CN205982837U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797275A (en) * | 2016-08-30 | 2018-03-13 | 北京亮亮视野科技有限公司 | It is a kind of that there is projection and the visually optical system of function |
| WO2019242231A1 (en) * | 2018-06-19 | 2019-12-26 | 联想(北京)有限公司 | Head-mounted display device and method used for head-mounted display device |
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