CN205880363U - Eyepiece system with wear display device - Google Patents
Eyepiece system with wear display device Download PDFInfo
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- CN205880363U CN205880363U CN201620683960.7U CN201620683960U CN205880363U CN 205880363 U CN205880363 U CN 205880363U CN 201620683960 U CN201620683960 U CN 201620683960U CN 205880363 U CN205880363 U CN 205880363U
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- eyepiece system
- cylindrical lens
- reflecting mirror
- light path
- display screen
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Abstract
The utility model discloses an eyepiece system with wear display device. This eyepiece system includes display screen, fresnel reflection mirror and the cylindrical lens who sets gradually along the direction of light incidence, and the central line of the relative light path diaphragm of cylindrical lens sets up perpendicularly, and the central line of the relative light path diaphragm of display screen becomes first angle of inclination and sets up, and the central line of the relative light path diaphragm of fresnel reflection mirror becomes the second angle of inclination and sets up first angle of inclination and second angle of inclination imbalance, the display screen is used for sending the incident light that carries image information, the fresnel reflection mirror is used for assembling the incident light that the display screen sent to reflect the incident light to cylindrical lens, cylindrical lens is arranged in anaclasis to the people's eye with the fresnel reflection mirror reflection to the astigmatism that the slope of compensation fresnel reflection mirror arouses. The utility model discloses an eyepiece system has simple structure, compactness, and is small, advantage that the image quality is good.
Description
Technical field
This utility model relates to optical lens technical field, particularly to a kind of eyepiece system with wear display device.
Background technology
At present, along with the development of science and technology, head-mounted display enters commercial market, and increasing people begins to use this
Series products, enjoys the visual experience of immersion by the eyepiece system in head-mounted display.But, wearing the most on the market
In the eyepiece system design of display, typically require that battery of lens undertakes the focal power of whole eyepiece system, it is therefore desirable to many
Individual lens are mutually adapted, and the aberration that multiple lens produce makes the image quality of eyepiece system be substantially reduced, and causes eyepiece
System entirety has the shortcoming that volume is big and quality is big, and heavy head-mounted display brings the biggest pressure to the head of user
Power, significantly reduces experience effect and the comfortableness of user.
Utility model content
In view of the above problems, this utility model provides a kind of eyepiece system and wears display device, to solve existing mesh
The problem of the poor user experience that mirror system volume is big, quality causes greatly.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
On the one hand, this utility model provides a kind of eyepiece system, and this eyepiece system includes the direction along light
Display screen, fresnel reflecting mirror and the cylindrical lens set gradually, described cylindrical lens is relative to the central axis of light path diaphragm
Arranging, described display screen becomes the first inclination angle to arrange relative to the centrage of light path diaphragm, and described fresnel reflecting mirror is relative to light path
The centrage of diaphragm becomes the second inclination angle to arrange, and described first inclination angle is unequal with described second inclination angle；
Described display screen, for sending the incident illumination carrying image information；
Described fresnel reflecting mirror, for converging the incident illumination that described display screen sends, and reflexes to described incident illumination
Cylindrical lens；
Described cylindrical lens, in the anaclasis reflected by described fresnel reflecting mirror to human eye, to compensate Fresnel
The astigmatism that mirror tilt causes.
Preferably, the light reflection surface of described fresnel reflecting mirror is the Fresnel surface with positive light coke, described Fresnel
The substrate in face is plane.
Preferably, the light entrance face of described cylindrical lens is plane, and light-emitting face is the cylinder concaving towards light path diaphragm.
Preferably, the segment of a cylinder of described cylindrical lens is parallel to the plane at light path diaphragm place.
Preferably, described display screen is 55.43 ° relative to the first inclination angle formed by the centrage of light path diaphragm；Described phenanthrene
Nie Er reflecting mirror is 45 ° relative to the second inclination angle formed by the centrage of light path diaphragm.
Preferably, half bore of described fresnel reflecting mirror is 26.4mm, and the radius of its light reflection surface is 50.2mm, circular cone
Coefficient for-2.882888858799, four term coefficient be 2.651425240788000E-006, six term coefficient be
3.515297900695000E-010。
Preferably, half bore of described cylindrical lens is 6.732822979906091mm, and its cylinder radius is
7.46669mm, four term coefficient are 3.889807350034000E-005, six term coefficient are-5.138481508652000E-
007。
Preferably, the focal length of described eyepiece system be 25.21mm, axial length be 26mm.
Preferably, described cylindrical lens is the plastic material of PMMA model.
On the other hand, this utility model additionally provides one and wears display device, including symmetrical left eye eyepiece system and
Right eye eyepiece system, described left eye eyepiece system and right eye eyepiece system use the eyepiece system that technique scheme provides.
This utility model embodiment provides the benefit that: 1, to lead to light appropriate design display screen, Fresnel anti-for this utility model
Penetrate mirror and cylindrical lens, constitute the eyepiece system of a kind of simple in construction；2, in the design process, this utility model is by tilting
Fresnel reflecting mirror and display screen are set so that eyepiece system has the folding light path of compact conformation, thus significantly reduces
The volume of eyepiece system, and owing to fresnel reflecting mirror is less to the restriction of clear aperture relative to spherical reflector, thus energy
Enough more save design space, reduce the volume of eyepiece system further；3, in the design process, this utility model is by using
Fresnel reflecting mirror cooperates with cylindrical lens, utilizes cylindrical lens to compensate fresnel reflecting mirror and tilts the astigmatism caused, carries
High image quality.
Accompanying drawing explanation
Fig. 1 is the light path schematic diagram of reflective eyepiece system；
The light path schematic diagram of the eyepiece system that Fig. 2 provides for this utility model；
The structural representation of the fresnel reflecting mirror that Fig. 3 provides for this utility model；
The structural representation of the cylindrical lens that Fig. 4 provides for this utility model；
Fig. 5 is the point range figure of the eyepiece system being not provided with cylindrical lens；
The point range figure of the eyepiece system with cylindrical lens that Fig. 6 provides for this utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, new to this practicality below in conjunction with accompanying drawing
Type embodiment is described in further detail.
Embodiment one:
Fig. 1 is the light path schematic diagram of reflective eyepiece system, and light is sent by screen, enters into after reflecting mirror reflects
Human eye, reflecting mirror uses positive light coke so that the picture of screen is exaggerated, and the light i.e. making display screen produce is aggregated into being mapped to human eye
In, before human eye at a certain distance from formed upright, amplify the virtual image, thus to people shock visual experience.
The light path schematic diagram of the eyepiece system that Fig. 2 provides for this utility model, as in figure 2 it is shown, this eyepiece system includes edge
Display screen 101, fresnel reflecting mirror 102 and cylindrical lens 103 that the direction of light sets gradually；
The central axis of the relative light path diaphragm 104 of cylindrical lens 103 is arranged, the relative light path diaphragm 104 of display screen 101
Centrage becomes the first inclination angle to arrange, and fresnel reflecting mirror 102 becomes the second inclination angle to set relative to the centrage of light path diaphragm 104
Putting, wherein the first inclination angle is unequal with the second inclination angle；
Display screen 101, for sending the incident illumination carrying image information；
Fresnel reflecting mirror 102, for converging the incident illumination that display screen 101 sends, and it is saturating that incident illumination is reflexed to cylinder
Mirror 103；
Cylindrical lens 103, in anaclasis that fresnel reflecting mirror 102 is reflected to human eye, anti-to compensate Fresnel
Penetrate mirror 102 and tilt the astigmatism caused.
The present embodiment leads to light appropriate design display screen, fresnel reflecting mirror and cylindrical lens, constitutes a kind of simple in construction
Eyepiece system；In the design process, the present embodiment is by being obliquely installed fresnel reflecting mirror and display screen so that eyepiece system
There is the folding light path of compact conformation, thus significantly reduce the volume of eyepiece system, and owing to fresnel reflecting mirror is relative
Less to the restriction of clear aperture in spherical reflector, it is thus possible to more to save design space, reduce eyepiece system further
Volume；In the design process, the present embodiment, by using fresnel reflecting mirror to cooperate with cylindrical lens, utilizes cylinder saturating
Mirror compensates fresnel reflecting mirror and tilts the astigmatism caused, and improves image quality.
The structural representation of the fresnel reflecting mirror that Fig. 3 provides for the present embodiment, as it is shown on figure 3, fresnel reflecting mirror 102
Light reflection surface S1 be the Fresnel surface with positive light coke, the substrate of Fresnel surface is plane.
The present embodiment is by being set to positive light coke by the light reflection surface of fresnel reflecting mirror so that converging light
During Ju, fresnel reflecting mirror assume responsibility for most of focal power of eyepiece system, alleviates eyepiece system to cylindrical lens
The requirement of focal power, not only reduces aberration produced by cylindrical lens, again owing to fresnel reflecting mirror is in the mistake assembling light
Journey will not produce aberration, and then the aberration of eyepiece system can be greatly reduced, improve image quality further.
It should be noted that the face in the S2 face of the another side that the present embodiment is to fresnel reflecting mirror, i.e. fresnel reflecting mirror
Type is not specifically limited, and the S2 face being diagrammatically only by fresnel reflecting mirror in Fig. 3 can be plane.
The structural representation of the cylindrical lens that Fig. 4 provides for the present embodiment, as shown in Figure 4, the light of cylindrical lens 103 is incident
Face S4 is plane, and light-emitting face S3 is the cylinder concaving towards light path diaphragm；Wherein, the segment of a cylinder of cylindrical lens 103 is parallel to light
The plane at road diaphragm 104 place；I.e. cylindrical lens is upright is arranged in eyepiece system.
The present embodiment is preferably provided with the plastic material that cylindrical lens 103 is PMMA model.
In a specific implementation of the present embodiment, formed by the centrage of the relative light path diaphragm 104 of display screen 101
First inclination angle is 55.43 °, and the second inclination angle formed by the centrage of the relative light path diaphragm 104 of fresnel reflecting mirror 102 is
45°；
Half bore of fresnel reflecting mirror is 26.4mm, the radius of its light reflection surface is 50.2mm, circular cone coefficient for-
2.882888858799, four term coefficient be 2.651425240788000E-006, six term coefficient be
3.515297900695000E-010；
Half bore of cylindrical lens is 6.732822979906091mm, and its cylinder radius is 7.46669mm, four term systems
Number is-5.138481508652000E-007 for 3.889807350034000E-005, six term coefficient.
The focal length of the eyepiece system in this specific implementation is 25.21mm, axial length is 26mm.
In technique scheme, the eyepiece system in this specific implementation can reach the maximum horizontal of 43.2 ° and regard
Rink corner, the maximum vertically angle of visual field of 41 °, the diagonal angle of 60 °, the technology of a diameter of 8mm of human eye effective zone of action EYEBox refers to
Mark.
As shown in Figure 5 and Figure 6, Fig. 5 is the point range figure of the eyepiece system being not provided with cylindrical lens, and Fig. 6 is that the present embodiment carries
The point range figure of the eyepiece system with cylindrical lens of confession, comparison diagram 5 and Fig. 6, can find out intuitively and be not provided with cylindrical lens
The disc of confusion of eyepiece system be relatively large in diameter, the disc of confusion diameter of the eyepiece system with cylindrical lens that this utility model provides
Relatively small；Owing to the image quality of the least proof system of disc of confusion is the best, it is seen then that the cylindrical lens energy that this utility model is arranged
Enough effectively compensate for fresnel reflecting mirror and tilt the astigmatism caused, the eyepiece with cylindrical lens that therefore this utility model provides
System is obtained in that good image quality.
Embodiment two:
Based on the utility model design identical with embodiment one, present embodiments provide one and wear display device, this head
Wear display device, adopt including symmetrical left eye eyepiece system and right eye eyepiece system, left eye eyepiece system and right eye eyepiece system
With the eyepiece system in embodiment one.
The present embodiment is by arranging the above-mentioned images of left and right eyes eyepiece system of application in helmet, the most perfect to user
Visual experience.
In sum, this utility model provides a kind of eyepiece system and wears display device, and this utility model leads to photosynthetic
Reason design display screen, fresnel reflecting mirror and cylindrical lens, constitute the eyepiece system of a kind of simple in construction；In design process
In, this utility model one side, by being obliquely installed fresnel reflecting mirror and display screen so that eyepiece system has compact conformation
Folding light path, thus significantly reduce the volume of eyepiece system, and owing to fresnel reflecting mirror is relative to spherical reflector
Restriction to clear aperture is less, it is thus possible to more save design space, reduces the volume of eyepiece system further；In design
During, on the other hand this utility model, by using fresnel reflecting mirror to cooperate with cylindrical lens, utilizes cylindrical lens
Compensate fresnel reflecting mirror and tilt the astigmatism caused, improve image quality.
For the ease of clearly describing the technical scheme of this utility model embodiment, in the embodiment of utility model, use
The printed words such as " first ", " second " to function with act on essentially identical identical entry or similar item makes a distinction, art technology
Personnel are appreciated that quantity and execution order are not defined by the printed words such as " first ", " second ".
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection model of the present utility model
Enclose.All any modification, equivalent substitution and improvement etc. made within spirit of the present utility model and principle, are all contained in this reality
With in novel protection domain.
Claims (10)
1. an eyepiece system, it is characterised in that this eyepiece system includes setting gradually along the direction of light: display
Screen, fresnel reflecting mirror and cylindrical lens, described cylindrical lens is arranged relative to the central axis of light path diaphragm, described display screen
Becoming the first inclination angle to arrange relative to the centrage of light path diaphragm, described fresnel reflecting mirror becomes the relative to the centrage of light path diaphragm
Two inclinations angle are arranged, and described first inclination angle is unequal with described second inclination angle；
Described display screen, for sending the incident illumination carrying image information；
Described fresnel reflecting mirror, for converging the incident illumination that described display screen sends, and reflexes to cylinder by described incident illumination
Lens；
Described cylindrical lens, in the anaclasis reflected by described fresnel reflecting mirror to human eye, to compensate described Fresnel
The astigmatism that mirror tilt causes.
Eyepiece system the most according to claim 1, it is characterised in that the light reflection surface of described fresnel reflecting mirror is for having
The Fresnel surface of positive light coke, the substrate of described Fresnel surface is plane.
Eyepiece system the most according to claim 1, it is characterised in that the light entrance face of described cylindrical lens is plane, light
Exit facet is the cylinder concaving towards light path diaphragm.
Eyepiece system the most according to claim 3, it is characterised in that the segment of a cylinder of described cylindrical lens is parallel to light path
The plane at diaphragm place.
Eyepiece system the most according to claim 1, it is characterised in that
Described display screen is 55.43 ° relative to the first inclination angle formed by the centrage of light path diaphragm；
Described fresnel reflecting mirror is 45 ° relative to the second inclination angle formed by the centrage of light path diaphragm.
Eyepiece system the most according to claim 2, it is characterised in that half bore of described fresnel reflecting mirror is
26.4mm, the radius of its light reflection surface is 50.2mm, circular cone coefficient for-2.882888858799, four term coefficient is
2.651425240788000E-006, six term coefficient be 3.515297900695000E-010.
Eyepiece system the most according to claim 3, it is characterised in that half bore of described cylindrical lens is
6.732822979906091mm, its cylinder radius is 7.46669mm, four term coefficient are 3.889807350034000E-005,
Six term coefficient are-5.138481508652000E-007.
8. according to the eyepiece system described in any one of claim 1 to 7, it is characterised in that the focal length of described eyepiece system is
25.21mm, axial length are 26mm.
Eyepiece system the most according to claim 8, it is characterised in that described cylindrical lens is the plastics material of PMMA model
Matter.
10. wear display device for one kind, it is characterised in that include left eye eyepiece system and the right eye eyepiece system of symmetry, described
Left eye eyepiece system and right eye eyepiece system use the eyepiece system as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683960.7U CN205880363U (en) | 2016-06-30 | 2016-06-30 | Eyepiece system with wear display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683960.7U CN205880363U (en) | 2016-06-30 | 2016-06-30 | Eyepiece system with wear display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205880363U true CN205880363U (en) | 2017-01-11 |
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ID=57693973
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620683960.7U Active CN205880363U (en) | 2016-06-30 | 2016-06-30 | Eyepiece system with wear display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205880363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019569A (en) * | 2016-06-30 | 2016-10-12 | 北京小鸟看看科技有限公司 | Eyepiece system and head-mounted display device |
| CN107272203A (en) * | 2017-06-27 | 2017-10-20 | 塔普翊海（上海）智能科技有限公司 | Roll over/spread out reflective head mounted display optical system |
-
2016
- 2016-06-30 CN CN201620683960.7U patent/CN205880363U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019569A (en) * | 2016-06-30 | 2016-10-12 | 北京小鸟看看科技有限公司 | Eyepiece system and head-mounted display device |
| CN107272203A (en) * | 2017-06-27 | 2017-10-20 | 塔普翊海（上海）智能科技有限公司 | Roll over/spread out reflective head mounted display optical system |
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