CN204360008U - A kind of micro-display eyepiece, wear eyepiece system and wear visual device - Google Patents
A kind of micro-display eyepiece, wear eyepiece system and wear visual device Download PDFInfo
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- CN204360008U CN204360008U CN201420805851.9U CN201420805851U CN204360008U CN 204360008 U CN204360008 U CN 204360008U CN 201420805851 U CN201420805851 U CN 201420805851U CN 204360008 U CN204360008 U CN 204360008U
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- positive lens
- eyepiece
- wear
- lens
- micro
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Abstract
The utility model discloses a kind of micro-display eyepiece, wear eyepiece system and wear visual device, described micro-display eyepiece comprises the first positive lens, the second positive lens and the 3rd negative lens, described first positive lens, described second positive lens and described 3rd negative lens is set gradually along light, described first positive lens is Fresnel Lenses, have the first surface towards image space and the convex second surface to object space, described first surface is the Fresnel surface with positive light coke; Described second positive lens has convex the 3rd surface to image space and the 4th surface towards object space, and described 4th surface is plane; Described 3rd negative lens has recessed the 5th surface to object space and recessed the 6th surface to object space.The optical system of the technical program adopts the plano-convex lens of spherical glass, the negative lens of aspheric surface plastics and Fresnel Lenses when the image quality of the system of guarantee, realizes the demand at miniaturization, lightweight and Large visual angle angle simultaneously.
Description
Technical field
The utility model relates to optical technical field, and particularly the micro-display of one is worn eyepiece, worn eyepiece system and wear visual device.
Background technology
At present, HMD (Head Mount Display, wears visual device) system has the defects such as field angle is little, volume large, heavy usually, and these defects have impact on the experience effect of system greatly, cause HMD visual field always lukewarm.
Utility model content
The utility model provides a kind of micro-display eyepiece, wears eyepiece system and wear visual device, and to solve, prior art field angle is little, volume large, the problem of heavy.
For achieving the above object, the technical solution of the utility model is achieved in that
On the one hand, the utility model provides a kind of micro-display eyepiece, comprises the first positive lens, the second positive lens and the 3rd negative lens, sets gradually described first positive lens, described second positive lens and described 3rd negative lens along light,
Described first positive lens is Fresnel Lenses, and have the first surface towards image space and the convex second surface to object space, described first surface is the Fresnel surface with positive light coke;
Described second positive lens has convex the 3rd surface to image space and the 4th surface towards object space, and described 4th surface is plane;
Described 3rd negative lens has recessed the 5th surface to object space and recessed the 6th surface to object space.
Preferably, described second surface is aspheric surface, and described 3rd surface is sphere, and described 5th surface and described 6th surface are aspheric surface.
Preferably, described first positive lens is plastic material, and described second positive lens is glass material, and described 3rd negative lens is plastic material.
Preferably, the ranges of indices of refraction of described first positive lens is 1.45 < n
1< 1.60, dispersion range is 50 < v
1< 75;
The ranges of indices of refraction of described second positive lens is 1.45 < n
2< 1.75, dispersion range is 50 < v
2< 70;
The ranges of indices of refraction of described 3rd negative lens is 1.65 < n
3< 1.95, dispersion range is 20 < v
3< 30.
Further preferably, described first positive lens is the plastic material of PMMA model, its refractive index n
1=1.491786, dispersion v
1=57.327362;
Described second positive lens is the glass material of H-ZK7 model, its refractive index n
2=1.613095, dispersion v
2=60.614382;
Described 3rd negative lens is the plastic material of OKP4HT model, its refractive index n
3=1.631919, dispersion v
3=23.416119.
On the other hand, the utility model provides one and wears eyepiece system, described in wear that eyepiece system is standby to be comprised: micro-display eyepiece of luminescent screen and technique scheme.
Preferably, the image planes wearing eyepiece system described in are positioned at human eye pupil place.
Preferably, the luminescent screen wearing eyepiece system described in is 1080P, 0.7 inch of M-OLED display screen.
Preferably, described in wear eyepiece system overall length be less than 22mm, general assembly (TW) is less than 10g.
Another aspect, the utility model provides one and wears visual device, and what comprise technique scheme wears eyepiece system.
The beneficial effect of the utility model embodiment is: the utility model discloses a kind of micro-display eyepiece, wear eyepiece system and wear visual device, the optical system of this micro-display eyepiece is made up of a Fresnel Lenses, a plano-convex positive lens and a double-concave negative lens, converge the outer chief ray of axle by Fresnel Lenses and plano-convex positive lens and bend towards optical axis, double-concave negative lens corrects residual aberration and the aberration of Fresnel Lenses and positive lens generation.The optical system of the utility model embodiment adopts the plano-convex lens of spherical glass, the negative lens of aspheric surface plastics and Fresnel Lenses when the image quality of the system of guarantee, realizes the demand at miniaturization, lightweight and Large visual angle angle simultaneously.
Accompanying drawing explanation
Fig. 1 is the principle of work schematic diagram wearing visual device;
The structural representation of a kind of micro-display eyepiece that Fig. 2 provides for the utility model embodiment;
Fig. 3 has same focal power, with the Fresnel Lenses of edge thickness and ordinary lens schematic diagram;
The optical transfer function curve synoptic diagram of micro-display eyepiece that Fig. 4 provides for the utility model embodiment;
The curvature of field curve synoptic diagram of micro-display eyepiece that Fig. 5 provides for the utility model embodiment;
The distortion aberration curve synoptic diagram of micro-display eyepiece that Fig. 6 provides for the utility model embodiment;
The point range figure of micro-display eyepiece that Fig. 7 provides for the utility model embodiment;
The ratio chromatism, curve synoptic diagram of micro-display eyepiece that Fig. 8 provides for the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Fig. 1 is the principle of work schematic diagram wearing visual device, and human eye is through micro-display eyepiece viewing display screen, and the light that display screen sends, by this eyepiece, and in the huge virtual image of distance human eye 5m place's formation one, then is received by human eye.
Design this when wearing the optical system of visual device, adopt reverse trace, make the display location wearing visual device in the image planes position of optical system, diaphragm is positioned at human eye pupil place.
This optical system comprises two positive lenss and a negative lens:
Described first positive lens is Fresnel Lenses, and it is much smaller that Fresnel Lenses compares the general lens volume with same focal power, effectively can reduce the volume of system;
Described second positive lens is plano-convex positive lens, and this part easily produces a large amount of aberration, therefore adopts the optical glass material of low dispersion;
Described 3rd negative lens is double-concave negative lens, and two concave surfaces adopt aspheric surface, to reduce system lenses quantity.
Based on above-mentioned design philosophy, the utility model provides a kind of micro-display eyepiece, as shown in Figure 2, for the structural representation of a kind of micro-display eyepiece that the utility model embodiment provides, this micro-display eyepiece comprises the first positive lens L1, the second positive lens L2 and the 3rd negative lens L3, sets gradually the first positive lens L1, the second positive lens L2 and the 3rd negative lens L3 along light.
First positive lens L1 is Fresnel Lenses, and have the first surface 21 towards image space and the convex second surface 22 to object space, first surface 21 is for having the Fresnel surface of positive light coke; First positive lens L1, for converging light, makes the outer chief ray of axle bend towards optical axis.
Second positive lens L2 has convex the 3rd surface 23 to image space and the 4th surface, surface the 24, four 24 towards object space is plane; Second positive lens L2 converges light further.
3rd negative lens L3 has recessed the 5th surface to object space and recessed the 6th surface to object space; 3rd negative lens L3 is for correcting residual aberration and the aberration of the first positive lens L1 and the second positive lens L2 generation.
Wherein, Fresnel Lenses has the characteristic that area is large, thickness is thin, detect distance.Mostly Fresnel Lenses is the thin slice being noted pressure by polyolefine material, or glass material is made, lens surface one side is light face, the ascending concentric circles of the Fresnel surface imprinting of another side, the texture of Fresnel surface penetrates according to the interference of light and disturbing and relative sensitive requires design to receiving angle.With reference to figure 3, the left side is Fresnel Lenses, and the right is common positive lens, two power of lens, edge thickness are all identical, because the larger focal power of general face type burden can increase curvature, and focal power more deep camber is larger, then lens are more bulging, thus can increase volume and weight.Fresnel Lenses then can not do like this, and Fresnel Lenses not only effectively can eliminate spherical aberration and monochromatic aberration, increases the optical system of optical system, effectively can also reduce the volume of eyepiece.Therefore, adopt Fresnel Lenses to design this micro-display eyepiece in the utility model, to reach miniaturization, the light-weighted market demand.
In preferred embodiment of the present utility model, the first positive lens L1 is plastic material, and the second positive lens L2 is glass material, and the 3rd negative lens L3 is plastic material; Second surface 22 is aspheric surface, and the 3rd surface 23 is sphere, and the 5th surface 25 and the 6th surface 26 are aspheric surface.The technical program, by adopting aspheric surface plastic material lens and spherical glass material lens combination, to ensure micro-display eyepiece miniaturization, lightweight, improves image quality simultaneously.
Further preferably, the ranges of indices of refraction of the first positive lens L1 is 1.45 < n
1< 1.60, dispersion range is 50 < v
1< 75;
The ranges of indices of refraction of the second positive lens L2 is 1.45 < n
2< 1.75, dispersion range is 50 < v
2< 70;
The ranges of indices of refraction of the 3rd negative lens L3 is 1.65 < n
3< 1.95, dispersion range is 20 < v
3< 30.
Concrete, the first positive lens L1 is the plastic material of PMMA model, its refractive index n
1=1.491786, dispersion v
1=57.327362;
Second positive lens L2 is the glass material of H-ZK7 model, its refractive index n
2=1.613095, dispersion v
2=60.614382;
3rd negative lens L3 is the plastic material of OKP4HT model, its refractive index n
3=1.631919, dispersion v
3=23.416119.
In technique scheme, the optical system be made up of 3 lens can realize 66 ° of diagonal field of view angles, 52 ° of horizontal field of view angles, and corrects the aberrations such as ratio chromatism, the curvature of field, astigmatism, and image quality is better.
Another embodiment of the present utility model is supplied to one and wears eyepiece system, and this is worn eyepiece system and comprises: micro-display eyepiece that luminescent screen and technique scheme provide.
These image planes wearing eyepiece system are positioned at human eye pupil place, and namely the diaphragm of this system is positioned at human eye pupil place.
Preferably, this luminescent screen wearing eyepiece system is 1080P (Progressive scan, lines by line scan), 0.7 inch of M-OLED display screen.
Wherein M-OLED display screen compares LCOS (Liquid Crystal on Silicon, the attached silicon of liquid crystal) or DLP (Digital Light Procession, digital light process) technology, there is self luminous advantage, therefore do not need external light source, also do not need reflecting prism, the restriction of clear aperature can be broken away from, can also the volume of further minimizing system, and 1080P resolution effectively can reduce granular sensation, improve image quality.
This wears eyepiece system can reach following technical indicator:
66 ° of diagonal field of view angles, 52 ° of horizontal field of view angles;
System overall length is less than 22mm, and general assembly (TW) is less than 10g;
Distance of exit pupil is 14mm;
The system compensation aberrations such as ratio chromatism, the curvature of field, astigmatism, image quality is better.
Another embodiment of the present utility model is supplied to one and wears visual device, and what this wore that visual device comprises technique scheme wears eyepiece system.
Because the optical system wearing visual device can realize 66 ° of diagonal field of view angles, 52 ° of horizontal field of view angles and optical system overall length is less than 22mm, general assembly (TW) is less than 10g, distance of exit pupil is 14mm, therefore, it is possible to make this wear visual device meet miniaturization, lightweight, the market demand with great visual angle.
The optical transfer function curve synoptic diagram of micro-display eyepiece that Fig. 4 provides for the utility model embodiment, this optical transfer function MTF be 20 lines under MTF.In figure, transverse axis represents the demand pairs of every millimeter, dimensional units is lp/mm, the longitudinal axis represents the number percent that image quality reaches situation in kind, from 0 to 1, optical transfer function MTF can the image quality of concentrated expression system, more level and smooth and the relative transverse axis height higher (namely more close to 1) of its curve shape, the image quality of system is better; Depict the picture element under 0 ° of field angle, 20 ° of field angle, 26 ° of field angle, 30 ° of field angle, 33 ° of field angle in figure respectively, as can be seen from the figure, the curve of transport function is comparatively smoothly compact, and the image quality of camera lens is better.
The curvature of field curve synoptic diagram of micro-display eyepiece that Fig. 5 provides for the utility model embodiment, t line in figure is meridianal curvature of field, s line is Sagittal field curvature, the difference of meridianal curvature of field and Sagittal field curvature is the astigmatism of system, the curvature of field and astigmatic influence the aberration of the outer field rays of system axle, and difference crosses the image quality of the serious system that the has influence on off-axis ray of conference.As can be seen from the figure, the curvature of field of native system and astigmatism are all corrected in very low range.
The distortion aberration curve synoptic diagram of micro-display eyepiece that Fig. 6 provides for the utility model embodiment, distortion can not the sharpness of influential system, and only can cause system diagram distortion of image, distortion can be solved by later image process.
The point range figure of micro-display eyepiece that Fig. 7 provides for the utility model embodiment, point range figure display be system each field rays image planes place converge and formed disc of confusion, the system of characterizing obtains the characteristic of various difference, and the image quality of RMS RADIUS (root mean square radii) the less proof system in point range figure is better.In Fig. 7, three kinds of greyscale color represent the light of three kinds of wave bands respectively, and the aberration of the system of more making out a certificate that the disc of confusion of three kinds of greyscale color divides is larger; This camera lens is followed successively by 6.189 μm, 20.747 μm, 24.224 μm, 19.249 μm, 17.063 μm, 17.524 μm from 0 ° of field angle to the disc of confusion root mean square radii of 33 ° of field angle, it can thus be appreciated that the aberration of native system obtains good correction.
The ratio chromatism, curve synoptic diagram of micro-display eyepiece that Fig. 8 provides for the utility model embodiment, the longitudinal axis is field angle, ratio chromatism, curve in the present embodiment is the ratio chromatism, under 0 ° of field angle to 33 ° field angle, and transverse axis is the difference in height of relative green glow hot spot, and unit is μm.R curve in figure and B curve represent that the relative green glow of Red and blue light (green glow is in figure) is poor at the delivery altitude of image planes respectively, the difference of R curve and B curve is the ratio chromatism, of system, in figure relative to ratio chromatism, value on each position of the longitudinal axis much smaller than 5 μm, illustrate that the aberration of native system obtains good correction.
In sum, the utility model discloses a kind of micro-display eyepiece, wear eyepiece system and wear visual device, the optical system of this micro-display eyepiece is made up of a Fresnel Lenses, a plano-convex positive lens and a double-concave negative lens, converge the outer chief ray of axle by Fresnel Lenses and plano-convex positive lens and bend towards optical axis, double-concave negative lens corrects residual aberration and the aberration of Fresnel Lenses and positive lens generation.The optical system of the utility model embodiment adopts the plano-convex lens of spherical glass, the negative lens of aspheric surface plastics and Fresnel Lenses when the image quality of the system of guarantee, realizes the demand at miniaturization, lightweight and Large visual angle angle simultaneously.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., be all included in protection domain of the present utility model.
Claims (10)
1. a micro-display eyepiece, is characterized in that, comprises the first positive lens, the second positive lens and the 3rd negative lens, sets gradually described first positive lens, described second positive lens and described 3rd negative lens along light,
Described first positive lens is Fresnel Lenses, and have the first surface towards image space and the convex second surface to object space, described first surface is the Fresnel surface with positive light coke;
Described second positive lens has convex the 3rd surface to image space and the 4th surface towards object space, and described 4th surface is plane;
Described 3rd negative lens has recessed the 5th surface to object space and recessed the 6th surface to object space.
2. micro-display eyepiece according to claim 1, is characterized in that,
Described second surface is aspheric surface, and described 3rd surface is sphere, and described 5th surface and described 6th surface are aspheric surface.
3. micro-display eyepiece according to claim 1, is characterized in that,
Described first positive lens is plastic material, and described second positive lens is glass material, and described 3rd negative lens is plastic material.
4. micro-display eyepiece according to claim 1, is characterized in that,
The ranges of indices of refraction of described first positive lens is 1.45 < n
1< 1.60, dispersion range is 50 < v
1< 75;
The ranges of indices of refraction of described second positive lens is 1.45 < n
2< 1.75, dispersion range is 50 < v
2< 70;
The ranges of indices of refraction of described 3rd negative lens is 1.65 < n
3< 1.95, dispersion range is 20 < v
3< 30.
5. micro-display eyepiece according to claim 4, is characterized in that,
Described first positive lens is the plastic material of PMMA model, its refractive index n
1=1.491786, dispersion v
1=57.327362;
Described second positive lens is the glass material of H-ZK7 model, its refractive index n
2=1.613095, dispersion v
2=60.614382;
Described 3rd negative lens is the plastic material of OKP4HT model, its refractive index n
3=1.631919, dispersion v
3=23.416119.
6. wear an eyepiece system, it is characterized in that, described in wear that eyepiece system is standby to be comprised: luminescent screen and the micro-display eyepiece as described in any one of claim 1-5.
7. according to claim 6ly wear eyepiece system, it is characterized in that, described in wear eyepiece system image planes be positioned at human eye pupil place.
8. according to claim 6ly wear eyepiece system, it is characterized in that, described in wear eyepiece system luminescent screen be 1080P, 0.7 inch of M-OLED display screen.
9. according to claim 6ly wear eyepiece system, it is characterized in that, described in wear eyepiece system overall length be less than 22mm, general assembly (TW) is less than 10g.
10. wear a visual device, it is characterized in that, comprise and wear eyepiece system described in any one of claim 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805851.9U CN204360008U (en) | 2014-12-17 | 2014-12-17 | A kind of micro-display eyepiece, wear eyepiece system and wear visual device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805851.9U CN204360008U (en) | 2014-12-17 | 2014-12-17 | A kind of micro-display eyepiece, wear eyepiece system and wear visual device |
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| Publication Number | Publication Date |
|---|---|
| CN204360008U true CN204360008U (en) | 2015-05-27 |
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|---|---|---|---|
| CN201420805851.9U Withdrawn - After Issue CN204360008U (en) | 2014-12-17 | 2014-12-17 | A kind of micro-display eyepiece, wear eyepiece system and wear visual device |
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Cited By (10)
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| CN104536129A (en) * | 2014-12-17 | 2015-04-22 | 青岛歌尔声学科技有限公司 | Micro-display eye lens, head-mounted eye lens system and head-mounted visual equipment |
| CN105388609A (en) * | 2015-11-16 | 2016-03-09 | 厦门灵境信息科技有限公司 | Optical eyepiece lens and head-mounted display device |
| CN105652445A (en) * | 2016-03-03 | 2016-06-08 | 中山联合光电科技股份有限公司 | Ultra-high-definition internal focusing virtual reality optical system |
| CN106094210A (en) * | 2016-08-05 | 2016-11-09 | 江苏艾锐泰克无人飞行器科技有限公司 | A kind of mobile phone large-size screen monitors presentation device and system of taking photo by plane |
| CN106291939A (en) * | 2016-09-30 | 2017-01-04 | 中国科学院长春光学精密机械与物理研究所 | A kind of virtual reality display optical system |
| CN107045196A (en) * | 2017-02-08 | 2017-08-15 | 浙江舜宇光学有限公司 | Eyepiece and the display device including the eyepiece |
| TWI627463B (en) * | 2016-11-18 | 2018-06-21 | 玉晶光電股份有限公司 | Ocular optical system |
| JP2018132579A (en) * | 2017-02-14 | 2018-08-23 | キヤノン株式会社 | Observation optical system and observation device having the same |
| WO2022141383A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Large-viewing field-angle eyepiece optical system and head-mounted display device |
| WO2022141381A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Optical eyepiece system with large field-of-view angle, and head-mounted display device |
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2014
- 2014-12-17 CN CN201420805851.9U patent/CN204360008U/en not_active Withdrawn - After Issue
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| CN104536129A (en) * | 2014-12-17 | 2015-04-22 | 青岛歌尔声学科技有限公司 | Micro-display eye lens, head-mounted eye lens system and head-mounted visual equipment |
| CN105388609A (en) * | 2015-11-16 | 2016-03-09 | 厦门灵境信息科技有限公司 | Optical eyepiece lens and head-mounted display device |
| CN105652445A (en) * | 2016-03-03 | 2016-06-08 | 中山联合光电科技股份有限公司 | Ultra-high-definition internal focusing virtual reality optical system |
| CN106094210A (en) * | 2016-08-05 | 2016-11-09 | 江苏艾锐泰克无人飞行器科技有限公司 | A kind of mobile phone large-size screen monitors presentation device and system of taking photo by plane |
| CN106291939A (en) * | 2016-09-30 | 2017-01-04 | 中国科学院长春光学精密机械与物理研究所 | A kind of virtual reality display optical system |
| TWI627463B (en) * | 2016-11-18 | 2018-06-21 | 玉晶光電股份有限公司 | Ocular optical system |
| CN107045196A (en) * | 2017-02-08 | 2017-08-15 | 浙江舜宇光学有限公司 | Eyepiece and the display device including the eyepiece |
| WO2018145367A1 (en) * | 2017-02-08 | 2018-08-16 | 浙江舜宇光学有限公司 | Eyepiece and display device with same |
| CN109828368A (en) * | 2017-02-08 | 2019-05-31 | 浙江舜宇光学有限公司 | Eyepiece and display device including the eyepiece |
| CN107045196B (en) * | 2017-02-08 | 2019-07-05 | 浙江舜宇光学有限公司 | Eyepiece and display device including the eyepiece |
| US11002951B2 (en) | 2017-02-08 | 2021-05-11 | Zhejiang Sunny Optical Co., Ltd | Oculars and display devices including the same |
| CN109828368B (en) * | 2017-02-08 | 2021-11-19 | 浙江舜宇光学有限公司 | Eyepiece and display device including the same |
| JP2018132579A (en) * | 2017-02-14 | 2018-08-23 | キヤノン株式会社 | Observation optical system and observation device having the same |
| WO2022141383A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Large-viewing field-angle eyepiece optical system and head-mounted display device |
| WO2022141381A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Optical eyepiece system with large field-of-view angle, and head-mounted display device |
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