CN105068250A - Large-field angle eyepiece optical system - Google Patents
Large-field angle eyepiece optical system Download PDFInfo
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- CN105068250A CN105068250A CN201510494128.2A CN201510494128A CN105068250A CN 105068250 A CN105068250 A CN 105068250A CN 201510494128 A CN201510494128 A CN 201510494128A CN 105068250 A CN105068250 A CN 105068250A
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- lens
- eyepiece
- curvature
- optical system
- eye
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/001—Eyepieces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
Abstract
The invention provides a large-field angle eyepiece optical system used for a head display. The optical system comprises a first lens, a second lens and a third lens, which are coaxially arranged from the eye observation side to the display side along the direction of the optical axis successively. The first lens and the third lens are positive lenses and the second lens is a negative lens. The first lens protrudes towards the eye observation side from the face of the eye observation side and the radius of curvature is the positive value. The second lens recessed towards the eye observation side from one side of a diaphragm and the radius of curvature is the negative value. When materials, focal lengths and positions of the first, second and third lenses satisfy certain relations, images displayed on a display device are formed in people's eyes after being amplified via the eyepieces. The eyepiece optical system is advantaged by large diameter, large field angle, high definition, low distortion and small size, and suitable for a head display and similar devices.
Description
Technical field
The present invention relates to optical technical field, particularly relate to a kind of eyepiece optical system being applicable to head-mounted display or similar device.
Background technology
Along with electron device is constantly to ultraminiaturization development, and the development of new computing machine, microelectronics, photoelectric device and communication theory and technology, this new ant algorithms based on " people-oriented " " people computer system " of wearable computing becomes possibility.Application is continued to bring out in fields such as military affairs, industry, medical treatment, education, consumption.In a typical wearable computing system architecture, head-mounted display apparatus is crucial ingredient.Head-wearing display device passes through optical technology, by miniature image display, (such as transmission-type or Reflective liquid crystal displays are shielded, organic electroluminescence device, DMD device) video image light that sends is directed to the pupil of user, virtual, enlarged image is realized, for user provides directly perceived, visual image, video, Word message in the nearly order scope of user.Eyepiece optical system is the core of head-wearing display device, forms the function of virtual enlarged image before realizing that miniature image is presented at human eye.
The key of head-wearing display device: volume compact, lightweight, be convenient to wear, alleviate load.Meanwhile, the field angle of realization is large as much as possible, and the image that user can experience is large.Except above Consideration, also need emphasis to consider the picture quality of virtual image, various types of aberrations of control both optical imaging system, strengthen the comfort that user observes image.These depend primarily on eyepiece optical system.
Patent documentation 1 (China Patent Publication No. CN101609208A) provides a kind of eyepiece system for wearing display, and this eyepiece system field angle is large not, not more than 55 degree, can not meet the application of virtual reality; The eyeglass chi footpath of optical system is large, will cause wearing nearly eye display volume large; Production is considered not enough, and lens edge is not enough for the space to be preserved assembled, and causes eyeglass assembly difficulty large, is difficult to produce.Patent documentation 2 (China Patent Publication No. CN101887166A) provides a kind of eyepiece system for wearing display, and this eyepiece system field angle is little, less than 40 degree, is difficult to realize Large visual angle angle, feeling of immersion.Patent documentation 3 (China Patent Publication No. CN104570323A) although eyepiece can realize Large visual angle angle (>70 degree) optical property, but cannot realize the optical property that low distortion, large emergent pupil, the image space heart far away etc. are crucial.These performances are on the comfort of eyepiece observer, high telepresenc Experience Degree and reduce the impact of diopter adjustment on optical property, play vital effect, if and the performances such as these performances and ultra-wide angle, high resolving power, low dispersion are realized simultaneously, the design difficulty of system and the optimization difficulty of aberration can be very large.
Summary of the invention
In order to solve problem in prior art, the present invention proposes a kind of eyepiece, there are large aperture, Large visual angle, high resolving power, low distortion, small size etc. a little, being applicable to head-mounted display and similar device.
The present invention is achieved through the following technical solutions:
For an eyepiece for the nearly eye display in ultra-large vision field angle, described eyepiece comprises from eye-observation side to miniature image display device side along coaxial the first lens, the second lens, the 3rd lens be arranged in order of optical axis direction, and wherein the focal length of the first lens is f
1, the focal length of the second lens is f
2, the focal length of the 3rd lens is f
3, eyepiece effective focal length is f
w, and meet following relationship:
1)0.45<f
1/f
w<1.20，
2)0.30<|f
2/f
w|<0.60，
3)0.40<f
3/f
w<0.90，
Wherein, described first lens and the 3rd lens are positive lens, the second lens are negative lens; The material of described first lens, the second lens and the 3rd lens meets following requirement: Nd1>1.74, Nd2>1.58, Nd3>1.78, Nd1, Nd2, Nd3 represent that the first lens, the second lens, the 3rd lens are in the refractive index of d line respectively; Vd1>35, Vd3>35, Vd2<31, Vd1, Vd2, Vd3 represent that the first lens, the second lens, the 3rd lens are at the Abbe number of d line respectively.
As a further improvement on the present invention, described second lens are recessed to eye-observation side towards the face of eye-observation side, and radius-of-curvature is negative value.
As a further improvement on the present invention, described second lens are R towards the radius-of-curvature in the face of eye-observation side
21, the radius-of-curvature towards the face of miniature image display device side is R
22, and meet following relationship:
4)-2.0≦(R
21+R
22)/(R
21-R
22)≦-0.25。
As a further improvement on the present invention, described first lens, the second lens and the focal length of the 3rd lens and the radius-of-curvature of the second lens meet following relational expression further:
5)0.60<f
1/f
w<0.80，
6)0.30<|f
2/f
w|<0.45，
7)0.50<f
3/f
w<0.60，
8)-0.8≦(R
21+R
22)/(R
21-R
22)≦-0.35。
As a further improvement on the present invention, between described 3rd lens and miniature image display device, be arranged in order the 4th lens and the 5th lens, wherein the combined focal length of the 4th lens and the 5th lens is f
45, meet following relationship:
9)0.60<f
1/f
w<1.2，
10)0.35<|f
2/f
w|<0.6，
11)0.55<f
3/f
w<0.9，
12)f
45/f
w>2.0。
As a further improvement on the present invention, two gummed mirrors of described 4th lens and the n-negative form of the 5th lens composition.
As a further improvement on the present invention, the focal length of described first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens meets following relational expression further:
13)0.80<f
1/f
w<1.1，
14)0.40<|f
2/f
w|<0.5，
15)0.60<f
3/f
w<0.75，
16)f
45/f
w>5.5。
As a further improvement on the present invention, described first lens and the 3rd lens are glass material.
As a further improvement on the present invention, described second lens can be glass material or plastic material.
As a further improvement on the present invention, a face is had at least to be axisymmetric aspheric surface in described first lens, the second lens and the 3rd lens.
As a further improvement on the present invention, the optical surface of described first lens, the second lens and the 3rd lens is all axisymmetric aspheric surface.
Present invention also offers a kind of head-wearing display device, comprise a miniature image display and an eyepiece of the present invention, described eyepiece is between human eye and this miniature image display.
As a further improvement on the present invention, described miniscope is organic electroluminescent luminescent device, or described miniscope is transmissive type liquid crystal display, or described miniscope is reflective liquid-crystal display.
The invention has the beneficial effects as follows: eyepiece of the present invention at least comprises from eye-observation side to display side along coaxial the first lens, the second lens, the 3rd lens be arranged in order of optical axis direction, and described first lens and the 3rd lens are positive lens, the second lens are negative lens, described first lens are convex in eye-observation side towards the face of eye-observation side, radius-of-curvature be on the occasion of, second lens are recessed to eye-observation side towards the face of diaphragm side, and radius-of-curvature is negative value.Meanwhile, the material of the first lens, the second lens and the 3rd lens, focal length and position meet certain relation, make image that display device shows after eyepiece amplifies in eyes imaging.Eyepiece of the present invention has the advantage of compact conformation, small size, ultra-large vision field, and exit pupil diameter is greater than primitive eyepiece.The optical system of this eyepiece can have employed spherical lens and non-spherical lens arrange in pairs or groups use, optical plastic and optical glass combinationally uses, and then on the benchmark reducing manufacturing cost and product weight, realize the significantly elimination of system aberration, realize the optical index of a series of high-qualitys such as ultrashort Jiao, ultra-large vision field, little F/#, low distortion, low aberration, high resolving power, be beneficial to human eye viewing, reach the visual experience of high telepresenc.
Accompanying drawing explanation
Fig. 1 is the optical system diagram of eyepiece according to a first embodiment of the present invention;
Fig. 2 is the optical system transfer function figure of eyepiece according to a first embodiment of the present invention;
The distortion curve figure of Fig. 3 (a) eyepiece that to be the curvature of field figure of eyepiece according to a first embodiment of the present invention, Fig. 3 (b) be according to a first embodiment of the present invention;
Fig. 4 is the optical system diagram of eyepiece according to a second embodiment of the present invention;
Fig. 5 is the optical system transfer function figure of eyepiece according to a second embodiment of the present invention;
The distortion curve figure of Fig. 6 (a) eyepiece that to be the curvature of field figure of eyepiece according to a second embodiment of the present invention, Fig. 6 (b) be according to a second embodiment of the present invention;
The optical system diagram of the eyepiece of Fig. 7 the 3rd embodiment;
Fig. 8 is the optical system transfer function figure of eyepiece according to a third embodiment of the present invention;
Fig. 9 (a) is the curvature of field of eyepiece according to a third embodiment of the present invention, and Fig. 9 (b) is the distortion curve figure of eyepiece according to a third embodiment of the present invention.
The optical system diagram of the eyepiece of Figure 10 the 4th embodiment;
Figure 11 is the optical system transfer function figure of eyepiece according to a fourth embodiment of the present invention;
Figure 12 (a) is the curvature of field of eyepiece according to a fourth embodiment of the present invention, and Figure 12 (b) is the distortion curve figure of eyepiece according to a fourth embodiment of the present invention;
The optical system diagram of the eyepiece of Figure 13 the 5th embodiment;
Figure 14 is the optical system transfer function figure of eyepiece according to a fifth embodiment of the present invention;
Figure 15 (a) is the curvature of field of eyepiece according to a fifth embodiment of the present invention, and Figure 15 (b) is the distortion curve figure of eyepiece according to a fifth embodiment of the present invention;
The optical system diagram of the eyepiece of Figure 16 the 6th embodiment;
Figure 17 is the optical system transfer function figure of eyepiece according to a sixth embodiment of the present invention;
Figure 18 (a) is the curvature of field of eyepiece according to a sixth embodiment of the present invention, and Figure 18 (b) is the distortion curve figure of eyepiece according to a sixth embodiment of the present invention;
The optical system diagram of the eyepiece of Figure 19 the 7th embodiment;
Figure 20 is the optical system transfer function figure of eyepiece according to a seventh embodiment of the present invention;
Figure 21 (a) is the curvature of field of eyepiece according to a seventh embodiment of the present invention, and Figure 21 (b) is the distortion curve figure of eyepiece according to a seventh embodiment of the present invention.
Embodiment
Illustrate below in conjunction with accompanying drawing and embodiment the present invention is further described.
As shown in Figure 1, the optical system diagram of the eyepiece of first embodiment of the invention, from eye-observation side to display device I side (from left to right), is followed successively by diaphragm E, the first lens L1, the second lens L2, the 3rd lens L3 and display device I.In the present invention, diaphragm E can be the emergent pupil of eyepiece optical system imaging, is a virtual bright dipping aperture, and the pupil of human eye, when stop position, can observe best imaging effect.In the present embodiment, the first lens L1 and the 3rd lens L3 is positive lens, and the second lens L2 is negative lens, and the second lens are recessed to eye-observation side towards the face of eye-observation side, and radius-of-curvature is negative value; First lens L1, the second lens L2, the 3rd lens L3 all adopt aspheric surface with corrective system aberration more fully.At this, with diaphragm E surface sequence number for 1, the rest may be inferred (from left to right), and display I surface is 8.Described first lens and the 3rd lens are made up (such as optical glass) of the optical material of high index of refraction.
Described first embodiment eyepiece design data is as shown in table 1 below:
Table 1
Refer to the optical system transfer function figure of the eyepiece light according to invention first embodiment shown in accompanying drawing 2; Accompanying drawing 3 (a) and accompanying drawing 3 (b) respectively illustrate the curvature of field and the distortion curve of eyepiece according to a first embodiment of the present invention.It symbolizes the feature such as optical system Large visual angle and high imaging quality of the present embodiment.
As shown in Figure 4, the optical system diagram of the eyepiece of second embodiment of the invention, from eye-observation side to display device I side (from left to right), is followed successively by diaphragm E, the first lens L1, the second lens L2, the 3rd lens L3 and display device I.In the present embodiment, the first lens L1 and the 3rd lens L3 is positive lens, and the second lens L2 is negative lens, and the second lens are recessed to diaphragm side towards the face of diaphragm side, and radius-of-curvature is negative value; First lens L1, the second lens L2, the 3rd lens L3 all adopt aspheric surface with corrective system aberration more fully.At this, with diaphragm E surface sequence number for 1, the rest may be inferred (from left to right), and display I surface is 8.The second embodiment of the present invention increases the weight of the first lens positive light coke in systems in which, achieves larger field angle compared with the first embodiment of the present invention.
Described second embodiment eyepiece design data is as shown in table 2 below:
Table 2
Refer to the optical system transfer function figure of the eyepiece according to invention second embodiment shown in accompanying drawing 5; Accompanying drawing 6 (a) and accompanying drawing 6 (b) respectively illustrate the curvature of field and the distortion curve of eyepiece according to a second embodiment of the present invention.It symbolizes the feature such as optical system ultra-large vision field and high imaging quality of the present embodiment.
As shown in Figure 7, the optical system diagram of the eyepiece of third embodiment of the invention, from eye-observation side to display device I side (from left to right), is followed successively by diaphragm E, the first lens L1, the second lens L2, the 3rd lens L3 and display device I.In the present embodiment, the first lens L1 and the 3rd lens L3 is positive lens, and the second lens L2 is negative lens, and the second lens are recessed to diaphragm side towards the face of diaphragm side, and radius-of-curvature is negative value; First lens L1, the second lens L2, the 3rd lens L3 all adopt aspheric surface with corrective system aberration more fully.At this, with diaphragm E surface sequence number for 1, the rest may be inferred (from left to right), and display I surface is 8.The third embodiment of the present invention reduces the weight of the first lens positive light coke in systems in which, meanwhile reduce the second lens in systems in which negative power weight, add the weight of the 3rd lens positive light coke in systems in which, thus ensure the balance of system apparent field angle and aberration.And by the balanced adjustment to the first lens, the second lens, the 3rd lens strength, relaxed lens radius-of-curvature (as the first lens towards the surface in display device direction, the second lens are towards the surface in display device direction), thus reduce the processing and manufacturing difficulty of lens.
Described 3rd embodiment eyepiece design data is as shown in table 3 below:
Table 3
Refer to the optical system transfer function figure of the eyepiece according to invention the 3rd embodiment shown in accompanying drawing 8; Accompanying drawing 9 (a) and accompanying drawing 9 (b) respectively illustrate the curvature of field and the distortion curve of eyepiece according to a third embodiment of the present invention.It symbolizes the feature such as optical system ultra-large vision field and high imaging quality of the present embodiment.
As shown in Figure 10, the optical system diagram of the eyepiece of fourth embodiment of the invention, from eye-observation side to display device I side (from left to right), is followed successively by diaphragm E, the first lens L1, the second lens L2, the 3rd lens L3 and display device I.In the present embodiment, the first lens L1 and the 3rd lens L3 is positive lens, and the second lens L2 is negative lens, and the second lens are recessed to diaphragm side towards the face of diaphragm side, and radius-of-curvature is negative value; First lens L1, the second lens L2, the 3rd lens L3 all adopt aspheric surface with corrective system aberration more fully.At this, with diaphragm E surface sequence number for 1, the rest may be inferred (from left to right), and display I surface is 8.The fourth embodiment of the present invention have adjusted emphatically the radius-of-curvature relation of two optical surfaces of the second lens, make (R21+R22)/(R21-R22) reduce further, and then reduce the processing and manufacturing difficulty of the second lens, shorten the optical system length (diaphragm is to the distance of display device) of system.Wherein the second lens are R21 towards the radius-of-curvature in the face of diaphragm side, and the radius-of-curvature towards the face of display device side is R22.
Described 4th embodiment eyepiece design data is as shown in table 4 below:
Table 4
Refer to the optical system transfer function figure of the eyepiece according to invention the 4th embodiment shown in accompanying drawing 11; Accompanying drawing 12 (a) and accompanying drawing 12 (b) respectively illustrate the curvature of field and the distortion curve of eyepiece according to a fourth embodiment of the present invention.It symbolizes the feature such as optical system ultra-large vision field and high imaging quality of the present embodiment.
Every data of above-described embodiment 1-4 all meet the parameter request recorded in summary of the invention, and result is as shown in table 5 below:
Table 5
| f 1/f w | |f 2/f w| | f 1/f w | (R 21+R 22)/(R 21-R 22) | |
| Implement 1 | 0.674 | 0.337 | 0.540 | -0.416 |
| Implement 2 | 0.469 | 0.378 | 0.618 | -0.304 |
| Implement 3 | 0.809 | 0.459 | 0.526 | -0.503 |
| Implement 4 | 0.884 | 0.410 | 0.542 | -1.120 |
To further improvement of the present invention, cemented doublet is added between lens and display device the described 3rd, in order to improve the aberrations such as system aberration, the curvature of field, astigmatism, reduce the outer higher order aberratons of axle and optimize difficulty, thus further increase the efficient market angle of system, reduce the processing and manufacturing difficulty of lens.Illustrate below in conjunction with accompanying drawing and embodiment the present invention is further described.
As shown in Figure 13, the optical system of the eyepiece of fifth embodiment of the invention, from eye-observation side to display device I side (from left to right), be followed successively by diaphragm E, the first lens L1, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L and display device I.In the present embodiment, first lens L1 and the 3rd lens L3 is positive lens, second lens L2 is negative lens, and the second lens are recessed to diaphragm side towards the face of diaphragm side, radius-of-curvature is negative value, 4th lens L4 and the 5th lens L5 forms the cemented doublet of n-negative form, with aberrations such as corrective system aberration, the curvature of field, astigmatisms.And the first lens L1, the second lens L2, the 3rd lens L3 all adopt aspheric surface with corrective system aberration more fully.At this, with diaphragm E surface sequence number for 1, the rest may be inferred (from left to right), and display I surface is 11.
Described 5th embodiment eyepiece design data is as shown in table 6 below:
Table 6
Refer to the optical system transfer function figure of the eyepiece according to invention the 5th embodiment shown in accompanying drawing 14; Accompanying drawing 15 (a) and accompanying drawing 15 (b) respectively illustrate the curvature of field and the distortion curve of eyepiece according to a fifth embodiment of the present invention.It symbolizes the feature such as optical system ultra-large vision field and high imaging quality of the present embodiment.
As shown in Figure 16, the optical system diagram of the eyepiece of sixth embodiment of the invention, from eye-observation side to display device I side (from left to right), be followed successively by diaphragm E, the first lens L1, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L and display device I.In the present embodiment, first lens L1 and the 3rd lens L3 is positive lens, second lens L2 is negative lens, and the second lens are recessed to diaphragm side towards the face of diaphragm side, radius-of-curvature is negative value, 4th lens L4 and the 5th lens L5 forms the cemented doublet of n-negative form, with aberrations such as corrective system aberration, the curvature of field, astigmatisms.And the first lens L1, the second lens L2, the 3rd lens L3 all adopt aspheric surface with corrective system aberration more fully.At this, with diaphragm E surface sequence number for 1, the rest may be inferred (from left to right), and display I surface is 11.
Described 6th embodiment eyepiece design data is as shown in table 7 below:
Table 7
Refer to the optical system transfer function figure of the eyepiece according to invention the 6th embodiment shown in accompanying drawing 17; Accompanying drawing 18 (a) and accompanying drawing 18 (b) respectively illustrate the curvature of field and the distortion curve of eyepiece according to a sixth embodiment of the present invention.It symbolizes the feature such as optical system ultra-large vision field and high imaging quality of the present embodiment.
The optical system of the eyepiece of seventh embodiment of the invention as shown in Figure 19, from eye-observation side to display device I side (from left to right), be followed successively by diaphragm E, the first lens L1, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L and display device I.In the present embodiment, first lens L1 and the 3rd lens L3 is positive lens, second lens L2 is negative lens, and the second lens are recessed to diaphragm side towards the face of diaphragm side, radius-of-curvature is negative value, 4th lens L4 and the 5th lens L5 forms the cemented doublet of n-negative form, with aberrations such as the corrective system aberration curvature of field, astigmatisms.And the first lens L1, the second lens L2, the 3rd lens L3 all adopt aspheric surface with corrective system aberration more fully.At this, with diaphragm E surface sequence number for 1, the rest may be inferred (from left to right), and display I surface is 11.
Described 7th embodiment eyepiece design data is as shown in table 8 below:
Table 8
Refer to the optical system transfer function figure of the eyepiece according to invention the 7th embodiment shown in accompanying drawing 20; Accompanying drawing 21 (a) and accompanying drawing 21 (b) respectively illustrate the curvature of field and the distortion curve of eyepiece according to a seventh embodiment of the present invention.It symbolizes the feature such as optical system ultra-large vision field and high imaging quality of the present embodiment.
Every data of above-described embodiment 5-7 all meet the parameter request recorded in summary of the invention, and result is as shown in table 9 below:
Table 9
| f 1/f w | |f 2/f w| | f 3/f w | f 45/f w | |
| Implement 5 | 0.858 | 0.464 | 0.695 | 21.000 |
| Implement 6 | 1.082 | 0.465 | 0.660 | 6.039 |
| Implement 7 | 0.963 | 0.459 | 0.700 | 7.864 |
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (15)
1., for an eyepiece for the nearly eye display in ultra-large vision field angle, described eyepiece comprises from eye-observation side to miniature image display device side along coaxial the first lens, the second lens, the 3rd lens be arranged in order of optical axis direction, and wherein the focal length of the first lens is f
1, the focal length of the second lens is f
2, the focal length of the 3rd lens is f
3, eyepiece effective focal length is f
w, and meet following relationship:
1)0.45<f
1/f
w<1.20，
2)0.30<|f
2/f
w|<0.60，
3)0.40<f
3/f
w<0.90，
It is characterized in that: described first lens and the 3rd lens are positive lens, the second lens are negative lens; The material of described first lens, the second lens and the 3rd lens meets following requirement: Nd1>1.74, Nd2>1.58, Nd3>1.78, Nd1, Nd2, Nd3 represent that the first lens, the second lens, the 3rd lens are in the refractive index of d line respectively; Vd1>35, Vd3>35, Vd2<31, Vd1, Vd2, Vd3 represent that the first lens, the second lens, the 3rd lens are at the Abbe number of d line respectively.
2. eyepiece according to claim 1, is characterized in that: described second lens are recessed to eye-observation side towards the face of eye-observation side, and radius-of-curvature is negative value.
3. eyepiece according to claim 2, is characterized in that: described second lens are R towards the radius-of-curvature in the face of eye-observation side
21, the radius-of-curvature towards the face of miniature image display device side is R
22, and meet following relationship:
4)-2.0≦(R
21+R
22)/(R
21-R
22)≦-0.25。
4. eyepiece according to claim 3, is characterized in that: described first lens, the second lens and the focal length of the 3rd lens and the radius-of-curvature of the second lens meet following relational expression further:
5)0.60<f
1/f
w<0.80，
6)0.30<|f
2/f
w|<0.45，
7)0.50<f
3/f
w<0.60，
8)-0.8≦(R
21+R
22)/(R
21-R
22)≦-0.35。
5. eyepiece according to claim 1, is characterized in that: between described 3rd lens and miniature image display device, be arranged in order the 4th lens and the 5th lens, wherein the combined focal length of the 4th lens and the 5th lens is f
45, meet following relationship:
9)0.60<f
1/f
w<1.2，
10)0.35<|f
2/f
w|<0.6，
11)0.55<f
3/f
w<0.9，
12)f
45/f
w>2.0。
6. eyepiece according to claim 5, is characterized in that: two gummed mirrors of described 4th lens and the n-negative form of the 5th lens composition.
7. eyepiece according to claim 6, is characterized in that: the focal length of described first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens meets following relational expression further:
13)0.80<f
1/f
w<1.1，
14)0.40<|f
2/f
w|<0.5，
15)0.60<f
3/f
w<0.75，
16)f
45/f
w>5.5。
8. eyepiece according to claim 1, is characterized in that: described first lens and the 3rd lens are glass material.
9. eyepiece according to claim 1, is characterized in that: described second lens can be glass material or plastic material.
10. the eyepiece according to any one of claim 1 to 9, is characterized in that: have at least a face to be axisymmetric aspheric surface in described first lens, the second lens and the 3rd lens.
11. eyepiece according to claim 10, is characterized in that: the optical surface of described first lens, the second lens and the 3rd lens is all axisymmetric aspheric surface.
12. 1 kinds of head-wearing display devices, comprise a miniature image display and an eyepiece, described eyepiece, between human eye and this miniature image display, is characterized in that: described eyepiece is the eyepiece according to any one of claim 1 to 11.
13. head-wearing display devices according to claim 12, is characterized in that, described miniscope is organic electroluminescent luminescent device.
14. head-wearing display devices according to claim 12, is characterized in that, described miniscope is transmissive type liquid crystal display.
15. head-wearing display devices according to claim 12, is characterized in that, described miniscope is reflective liquid-crystal display.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494128.2A CN105068250A (en) | 2015-08-12 | 2015-08-12 | Large-field angle eyepiece optical system |
| CN201510830443.8A CN105278109B (en) | 2015-07-10 | 2015-11-25 | Big angle of visual field eyepiece optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494128.2A CN105068250A (en) | 2015-08-12 | 2015-08-12 | Large-field angle eyepiece optical system |
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| CN105068250A true CN105068250A (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510494128.2A Pending CN105068250A (en) | 2015-07-10 | 2015-08-12 | Large-field angle eyepiece optical system |
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| CN (1) | CN105068250A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017181361A1 (en) * | 2016-04-20 | 2017-10-26 | 深圳纳德光学有限公司 | Eyepiece optical system for near-eye display, and head-mounted display device |
| CN110447082A (en) * | 2017-03-22 | 2019-11-12 | 奇跃公司 | Dynamic visual field variable focus display system |
| CN112857754A (en) * | 2021-02-24 | 2021-05-28 | Oppo广东移动通信有限公司 | Near-to-eye display detection lens and near-to-eye display device |
| WO2022141387A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Eyepiece optical system having large field of view and head-mounted display device |
| WO2022141382A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Eyepiece optical system having large field of view and head-mounted display device |
| WO2022141386A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Eyepiece optical system having large field of view and head-mounted display device |
| WO2022141380A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Optical eyepiece system with large angle of view and head-mounted display device |
| WO2022141385A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Ocular optical system having large field of view, and head-mounted display device |
| WO2022141389A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Large-field-angle eyepiece optical system and head-mounted display device |
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- 2015-08-12 CN CN201510494128.2A patent/CN105068250A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017181361A1 (en) * | 2016-04-20 | 2017-10-26 | 深圳纳德光学有限公司 | Eyepiece optical system for near-eye display, and head-mounted display device |
| CN110447082A (en) * | 2017-03-22 | 2019-11-12 | 奇跃公司 | Dynamic visual field variable focus display system |
| CN110447082B (en) * | 2017-03-22 | 2021-12-14 | 奇跃公司 | Dynamic field-of-view variable focus display system |
| WO2022141387A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Eyepiece optical system having large field of view and head-mounted display device |
| WO2022141382A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Eyepiece optical system having large field of view and head-mounted display device |
| WO2022141386A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Eyepiece optical system having large field of view and head-mounted display device |
| WO2022141380A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Optical eyepiece system with large angle of view and head-mounted display device |
| WO2022141385A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Ocular optical system having large field of view, and head-mounted display device |
| WO2022141389A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Large-field-angle eyepiece optical system and head-mounted display device |
| CN112857754A (en) * | 2021-02-24 | 2021-05-28 | Oppo广东移动通信有限公司 | Near-to-eye display detection lens and near-to-eye display device |
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Application publication date: 20151118 |