CN116413901A - Monocular binocular eyepiece system and vehicle-mounted near-to-eye display device - Google Patents
Monocular binocular eyepiece system and vehicle-mounted near-to-eye display device Download PDFInfo
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- CN116413901A CN116413901A CN202111671065.5A CN202111671065A CN116413901A CN 116413901 A CN116413901 A CN 116413901A CN 202111671065 A CN202111671065 A CN 202111671065A CN 116413901 A CN116413901 A CN 116413901A
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- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 210000001747 pupil Anatomy 0.000 claims abstract description 36
- 230000005499 meniscus Effects 0.000 claims description 13
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- 230000004075 alteration Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 210000003128 head Anatomy 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010052143 Ocular discomfort Diseases 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/001—Eyepieces
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention discloses a monocular binocular eyepiece system, which comprises a single-barrel binocular eyepiece coaxially arranged along an optical axis direction from a human eye observation side to a display device side: the first lens group at least comprises a first lens, a second lens, a third lens and a fourth lens, wherein the first lens is a positive lens, the second lens is a negative lens, the third lens is a positive lens, the fourth lens is a negative lens, and the third lens and the fourth lens form a positive-negative cemented lens; and a second lens group including at least a fifth lens and a sixth lens, the fifth lens being a positive lens, the sixth lens being a negative lens; the exit pupil distance of the monocular binocular eyepiece system is not less than 35mm, and the exit pupil diameter is not less than 72mm. The monocular binocular eyepiece system has a large exit pupil distance and an exit pupil diameter, can be used for an observer to observe the same group of optical systems at the same time, can directly look at different parts of the same optical system without any image interruption, can quickly capture a target, reduces fatigue and prolongs working time.
Description
Technical Field
The invention relates to a monocular binocular eyepiece system, and simultaneously relates to a vehicle-mounted near-eye display device.
Background
Binocular viewing equipment for vehicle carriers is a hot spot in the technical field of near-eye display in recent years. The binocular viewing device for the vehicle is used for magnifying the display image through an ocular optical system and feeding back surrounding scene information and environmental conditions to human eyes.
The ocular assembly of the binocular viewing apparatus for the vehicle carrier is composed of an ocular optical system and a display (LCD or OLED display). The binocular ocular of the traditional vehicle-mounted observer generally adopts a left-right combined mode of a pair of monocular ocular components, the light path is divided into a left path and a right path, and the information of two displays is synchronous to carry out binocular observation. This results in that the eyes of the user must be placed in the exit pupil position of the optical system when viewing, and the exit pupil distance and pupil diameter of the conventional monocular eyepiece (binocular can be regarded as a combination of two monocular eyepieces) are small, the eyes of the observer always lean against the eyepiece cover, the object cannot be immediately captured, and fatigue and visual discomfort of the observer occur in a short time. As an auxiliary driving device, the shaking of the carrier can lead human eyes to leave the exit pupil, and the asynchronous man-machine displacement can influence the judgment of a driver on the driving or flight state. The left and right eyes of the binocular eyepiece are two relatively independent optical systems, so that the left and right optical axes are required to be strictly parallel, otherwise, the imaging quality is seriously affected.
Disclosure of Invention
The invention aims to provide a single-cylinder binocular eyepiece system.
Another technical problem to be solved by the present invention is to provide a vehicle-mounted near-to-eye display device, which comprises the monocular binocular eyepiece system and a display screen.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
according to an aspect of an embodiment of the present invention, there is provided a monocular binocular eyepiece system including, from a human eye viewing side to a display device side, coaxially aligned in an optical axis direction:
the first lens group at least comprises a first lens, a second lens, a third lens and a fourth lens, wherein the first lens is a positive lens, the second lens is a negative lens, the third lens is a positive lens, the fourth lens is a negative lens, and the third lens and the fourth lens form a positive-negative cemented lens; and
a second lens group including at least a sixth lens and a seventh lens, the sixth lens being a positive lens, the seventh lens being a negative lens;
the exit pupil distance of the monocular binocular eyepiece system is not less than 35mm, and the exit pupil diameter is not less than 72mm.
Optionally, the first lens is a biconvex lens, and the radius of curvature of the surface facing the human eye is smaller than the radius of curvature of the surface facing the display;
the second lens is a negative meniscus lens concave to the human eye side;
the sixth lens is an approximately plano-convex lens, the eye-facing side surface is convex, and the display-facing side surface is approximately planar;
the seventh lens is a biconcave lens.
Optionally, the third lens is a biconvex lens and the fourth lens is a negative meniscus lens; in the positive-negative cemented lens, the radius of curvature of the cemented surface is smaller than that of the both side surfaces.
Optionally, the third lens is a positive meniscus lens convex to the eye side of the person, and the fourth lens is a negative meniscus lens concave to the display side; in the positive-negative cemented lens, the radius of curvature of the cemented surface is larger than that of both side surfaces;
the first lens group further includes a fifth lens that is a biconvex lens, the fifth lens being disposed between the fourth lens and the sixth lens.
Optionally, the total focal length of the eyepiece lens system is f w The following relationship is satisfied: 55mm of<f w <60mm。
Optionally, the rear intercept of the eyepiece does not exceed 6mm.
Optionally, the overall size of the monocular binocular eyepiece system is no more than phi 80 x 115mm and the diameter is no less than 72mm.
Optionally, the eyes of the monocular binocular eyepiece system are positioned at the diaphragm for observation, the distance value of the left eye position and the right eye position deviated from the optical axis along the Y axis or the X axis direction is within the range of +/-29 mm to +/-34 mm, and the left eye exit pupil and the right eye exit pupil of the eyes are positioned at the positions of 4mm.
According to another aspect of the embodiment of the present invention, there is provided a vehicle-mounted near-to-eye display device, including the monocular binocular eyepiece system described above, and further including a display.
Optionally, the display is any one of LCD, OLED, lcos, and the display size is not greater than 3 inches and not less than 1 inch.
The monocular binocular eyepiece system provided by the invention has a large exit pupil distance and exit pupil diameter, can be used for an observer to observe the same group of optical systems at the same time by two eyes, can directly look at different parts of the same optical system without any image interruption, can quickly capture a target, reduces fatigue and prolongs working time. Meanwhile, the eyes of an observer observe through the same group of optical elements, and the error of parallel optical axes in the binocular eyepiece does not exist.
Drawings
FIG. 1 is a block diagram of a monocular binocular eyepiece system according to an embodiment of the present invention;
FIG. 2 is a view of the optical path of a human eye of the monocular binocular eyepiece system of FIG. 1;
FIG. 3 is a schematic diagram of the locations of Eye Box and clear aperture in a monocular binocular eyepiece system;
FIG. 4 is a distortion diagram of the monocular binocular eyepiece system of FIG. 2;
FIG. 5 is a block diagram of a monocular binocular eyepiece system provided by another embodiment of the invention;
FIG. 6 is a view of the optical path of a human eye of the monocular binocular eyepiece system of FIG. 5;
fig. 7 is a distortion diagram of the monocular binocular eyepiece system of fig. 5.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings and specific embodiments.
The invention provides a single-cylinder binocular near-to-eye display device which consists of a single-cylinder binocular ocular system and a display screen. The single-cylinder binocular eyepiece system is an optical system for two eyes of an observer to observe by using the same group of optical elements, and the two eyes can directly look at different parts of the same optical system without any image interruption. By using the monocular binocular eyepiece system, as the exit pupil distance and the exit pupil diameter are larger, eyes of observers do not need to lean against the eyepiece at any time, and the eyes can observe simultaneously and capture the target rapidly, so that fatigue is reduced, and the working time of the observers is prolonged. Meanwhile, the eyes of an observer observe through the same group of optical elements, and the error of parallel optical axes in the binocular eyepiece does not exist.
The following embodiments of the monocular binocular eyepiece system provided by the present invention can meet the following display requirements: the exit pupil distance is not less than 35mm, the exit pupil diameter is not less than 72mm, the field angle is 38 degrees, the overall optical size is not more than phi 80 multiplied by 115mm, and the diameter is not less than 72mm.
First embodiment
The monocular binocular eyepiece system shown in fig. 1 includes seven lenses. The monocular binocular eyepiece system is coaxially and sequentially arranged along the optical axis direction from the human eye observation side to the display device side: a diaphragm EPD, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, and a seventh lens L7; wherein the first lens L1 is a positive lens, the second lens L2 is a negative lens, the third lens L3 is a positive lens, the fourth lens L4 is a negative lens, the third lens L3 and the fourth lens L4 form a positive-negative cemented lens, chromatic aberration of the system is corrected, and the first lens L1 to the fourth lens L4 can be regarded as a first lens group I; the fifth lens L5 is a positive lens, the sixth lens L6 is a positive lens, the seventh lens L7 is a negative lens, the fifth lens L5, the sixth lens L6 and the sixth lens L7 can be regarded as the second lens group II, the field-related aberrations including distortion and curvature of field are corrected by the fifth lens L5, the sixth lens L6 and the sixth lens L7, and the distortion of the system is well controlled (less than 1%). In the above eyepiece system, the distance between the stop surface EPD and the surface of the first lens L1 facing the stop surface is 35mm, that is, the exit pupil distance is 35mm.
Wherein the first lens L1 is a biconvex lens, the radius of curvature of the surface facing the human eye is smaller than the radius of curvature of the surface facing the display; the second lens L2 is a negative meniscus lens concave toward the human eye side; the third lens L3 is a positive meniscus lens convex toward the human eye side, the fourth lens L4 is a negative meniscus lens concave toward the display side, and in the positive-negative cemented lens, the radius of curvature of the cemented surface is larger than that of both side surfaces; the fifth lens L5 is a biconvex lens; the sixth lens L6 is an approximately plano-convex lens, the human eye-facing side surface is a convex surface, and the display-facing side surface is approximately planar; the seventh lens L7 is a biconcave lens.
The combined focal length of the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 is f14 (i.e., the focal length f of the first lens group I ) The combined focal length of the fifth lens L5, the sixth lens L6 and the seventh lens L7 is f 57 (i.e., focal length f of the second lens group) II ) The total focal length of the system is f w Each focal length satisfies the following relationship:
(1)2.3<f 14 /f w <2.5；
(2)0.81<f 57 /f w <0.88；
(3)55mm<f w <60mm。
the material of the lens satisfies the following requirements:
Nd 3 >1.8，Nd 7 >1.8，Vd 1 >40；Vd 3 >40；Vd 5 >40；Vd 6 >40；
Nd 3 、Nd 7 : respectively representing refractive index of the third lens L3 and the seventh lens L7 at d-line, vd 1 、Vd 3 、Vd 5 、Vd 6 : the abbe numbers of the first lens L1, the third lens L3, the fifth lens L5, and the sixth lens L6 on the d-line are all larger than 40.
Wherein, in the first lens group, the combined focal length f of the first lens L1 and the second lens L2 12 And the total focal length f of the system w The following formula is satisfied:
(4)2.8<f 12 /f w <3；
in the second lens group, a focal length f of the fifth lens L5 5 Combined focal length f of sixth lens L6 and seventh lens L7 67 Respectively with the total focal length f of the system w The following formula is satisfied:
(5)1.47<f 5 /f w <1.6；
(6)2<f 67 /f w <2.21。
as shown in fig. 2 and 3, in the monocular binocular eyepiece system, when a human eye is positioned at a diaphragm for observation, the distance between the left eye position and the right eye position and the distance between the left eye position and the right eye exit pupil of the human eye position are within a range of +/-29 mm to +/-34 mm along the Y axis or the X axis direction. The relative positions and visual fields of the eyes and the eyepiece lens system are shown in fig. 2. Fig. 3 shows the relationship of the left eye box, the right eye box, and the eyepiece clear aperture, and shows a plurality of eye pupil positions, whereby it is understood that even if the human eye moves left and right in a small range with respect to the eyepiece within the eyepiece clear aperture, the observation effect of the eyepiece is not affected.
In this embodiment, the display device used may be one LCD, OLED, lcos or the like. Preferably, the system uses an lcd or OLED display device of 1 inch (inch) or more as the image source because the system has a large field angle, exit pupil distance, and exit pupil aperture, and the system uses an undersize display device, which increases the design difficulty. The size of the display device adopted by the monocular binocular eyepiece system is more than 1 inch, and the angle of view and resolution can be effectively improved. The field of view brightness of the monocular binocular eyepiece system is also higher, and when the monocular binocular eyepiece system is used in a night environment, the image brightness required by human eyes can be ensured.
The following describes the surface type parameters of each lens in the first embodiment specifically taking a seven-piece type monocular binocular eyepiece system suitable for a 1.57-inch display screen, focal length=57.14 mm, exit pupil diameter=72 mm, and exit pupil distance=35 mm as an example. The surfaces of the display devices are 17, 15 and 16 surfaces of the screen protection glass, the optical surfaces of the lenses are spherical surfaces, and the eyepiece design data of the first embodiment are shown in the following table 1.
TABLE 1 surface parameters (unit: mm) of optical surfaces in the first example
In this embodiment, the eyepiece system has an overall length of 113.4mm, less than 115mm, an eyepiece system diameter of less than 80mm, and a smaller volume from the front surface 2 of the first lens L1 to the display screen surface 17.
Fig. 4 is a diagram showing distortion of the eyepiece lens system in this embodiment, from which it can be seen that the distortion of the system is less than ±1% over a viewing angle of ±19 degrees, with little distortion.
Second embodiment:
the system of the first embodiment is used in this embodiment, except that the back intercept of the system is adjusted (the back intercept is not greater than 6 mm), so that the system can realize good imaging within the back intercept range, and the influence caused by the tolerance of the large-aperture optical system is effectively reduced. Wherein, with the diaphragm surface number of 1, and so on, the surface number of the display device of 17, the surface 15 and the surface 16 are the surface of the screen protection glass, the eyepiece design data of the second embodiment is shown in the following table 2.
TABLE 2 surface parameters (unit: mm) of the optical surfaces in the second example
The distortion map of this embodiment is similar to that of the first embodiment and is not illustrated here.
Third embodiment:
the monocular binocular eyepiece system shown in fig. 5 includes six lenses. The lens group of the first lens group has a larger adjustment of the surface type parameters of the cemented doublet compared to the first embodiment, while the fifth lens is not used in the second lens group.
Specifically, the monocular binocular eyepiece system is arranged coaxially and sequentially in the optical axis direction from the human eye viewing side to the display device side: a diaphragm EPD, a first lens L1', a second lens L2', a third lens L3', a fourth lens L4', a sixth lens L6', and a seventh lens L7'; wherein the first lens L1 'is a positive lens, the second lens L2' is a negative lens, the third lens L3 'is a positive lens, the fourth lens L4' is a negative lens, the third lens L3 'and the fourth lens L4' form a positive-negative cemented lens, chromatic aberration of the system is corrected, and the first lens L1 'to the fourth lens L4' can be regarded as a first lens group I; the sixth lens L6 'is a positive lens, the seventh lens L7' is a negative lens, and the sixth lens L6 'and the sixth lens L7' can be regarded as the second lens group II, L6', L7' correcting field-related aberrations including distortion and curvature of field, the distortion of the system being well controlled (less than 1%).
Wherein the first lens L1' is a biconvex lens, the radius of curvature of the surface facing the human eye is smaller than the radius of curvature of the surface facing the display; the second lens L2' is a negative meniscus lens concave toward the human eye side; the third lens L3 'is a biconvex lens, the fourth lens L4' is a negative meniscus lens protruding toward the display side, and in the positive-negative cemented lens, the radius of curvature of the cemented surface is smaller than that of both side surfaces; the seventh lens L6' is an approximately plano-convex lens, the eye-facing side surface is convex, and the display-facing side surface is approximately planar; the seventh lens L7' is a biconcave lens.
Wherein the combined focal length of the first lens L1', the second lens L2', the third lens L3 'and the fourth lens L4' is f 14 ' i.e. focal length f of the first lens group I ) The combined focal length of the sixth lens L6 'and the seventh lens L7' is f 67 ' i.e. focal length f of the second lens group II ) The total focal length of the system is f w Each focal length satisfies the following relationship:
(7)1.3<f 14 ’/f w <1.43；
(8)-1.3<f 67 ’/f w <-1.2；
(9)55mm<f w <60mm。
the material of the lens satisfies the following requirements:
Nd 2 >1.8，Nd 4 >1.8，Nd 7 >1.8，Vd 1 >40，Vd 3 >40，Vd 6 >40；
Nd 2 、Nd 4 、Nd 7 : respectively representing refractive indexes of the second lens L2, the fourth lens L4 and the seventh lens L7 at d-line, vd 1 、Vd 3 、Vd 6 : the abbe numbers of the first lens L1, the third lens L3, and the sixth lens L6 on the d-line are each larger than 40.
Wherein, in the first lens group, the combined focal length f of the first lens L1' and the second lens L2 12 Combined focal length f of 'third lens L3' and fourth lens L4 34 ' respectively with the total focal length f of the system w The following formula is satisfied:
(10)2.5<f 12 ’/f w <2.75；
(11)1.53<f 34 ’/f w <1.68。
as shown in fig. 6, similar to the first embodiment, the single-cylinder binocular eyepiece system is provided, in which the distance between the left and right eye positions and the optical axis along the Y-axis or X-axis direction is within the range of ±29mm to ±34mm, and the left and right eye exit pupils are 4mm when the human eye is positioned. The relative positions and visual fields of the human eyes and the eyepiece lens system are shown in fig. 6.
In this embodiment, the display device used may be one LCD, OLED, lcos or the like. Preferably, the system uses an lcd or OLED display device of 1 inch (inch) or more as the image source because the system has a large field angle, exit pupil distance, and exit pupil aperture, and the system uses an undersize display device, which increases the design difficulty.
The following describes the surface type parameters of each lens in the first embodiment specifically taking a six-piece type monocular binocular eyepiece system suitable for a 1.57-inch display screen, focal length=57.14 mm, exit pupil diameter=72 mm, and exit pupil distance=35 mm as an example. The surface number of the diaphragm is 1, the surface number of the display device is 14, the surface 13 is a screen protection glass surface, each optical surface of the lens is a spherical surface, and the ocular design data of the third embodiment are shown in the following table 3.
TABLE 3 surface parameters (unit: mm) of optical surfaces in the third example
In this embodiment, the eyepiece system has an overall length of 114.78mm, less than 115mm, an eyepiece system diameter of less than 80mm, and a smaller volume from the front surface 2 of the first lens L1' to the display screen surface 14.
Fig. 7 is a diagram showing distortion of the eyepiece lens system in this embodiment, from which it can be seen that the distortion of the system is less than ±1% over a viewing angle of ±19 degrees, with little distortion.
The invention also provides a vehicle-mounted near-to-eye display device using the monocular binocular eyepiece system. The monocular binocular eyepiece system provided by the invention has the advantages of simple structure, convenience in use, comfort in observation and reliable performance; the exit pupil diameter and the exit pupil distance are large, the observation can be freely performed in a certain space range, and the target image is easy to continuously observe; the device can be fixed on a vehicle body, does not increase the burden of the head, is not easy to fatigue, and is suitable for continuously observing the surrounding scenery condition or related information by a vehicle-mounted binocular observer.
The optical system has an optical length of no more than 115mm and an eyepiece assembly is securable in front of the driver's seat for binocular viewing of displays of no more than 1 inch and no more than 3 inches. With a 1.57 inch display, the left and right eye fields of view overlap a horizontal field of view of about 1/3; the eyes are in binocular observation state of the designed diaphragm position, and the full field of view of the display can be seen. The binocular eye distance ranges from 56mm to 72mm; in the binocular viewing state, when the distance between the eyes and the outer surface of the eyepiece is within an axial range of not more than 35mm, a partial image including the center of the display screen can be still observed. In the monocular observation state, as long as one eye is located within a range of diameter phi 72mm centered on the eyepiece optical axis and the distance between the eye and the eyepiece outer surface is not more than 35mm, a partial image including the center of the display screen can be observed. Namely: this embodiment can be observed both binocular and monocular, and is easy to continuously observe a target image when the traveling vehicle is vibrating and jolting, or the user moves the head slightly.
The monocular binocular eyepiece system and the vehicle-mounted near-eye display device provided by the invention are described in detail above. Any obvious modifications to the present invention, without departing from the spirit thereof, would constitute an infringement of the patent rights of the invention and would take on corresponding legal liabilities.
Claims (10)
1. A monocular binocular eyepiece system comprising a coaxial arrangement along an optical axis from a human eye viewing side to a display device side:
the first lens group at least comprises a first lens, a second lens, a third lens and a fourth lens, wherein the first lens is a positive lens, the second lens is a negative lens, the third lens is a positive lens, the fourth lens is a negative lens, and the third lens and the fourth lens form a positive-negative cemented lens; and
a second lens group including at least a sixth lens and a seventh lens, the sixth lens being a positive lens, the seventh lens being a negative lens;
the exit pupil distance of the monocular binocular eyepiece system is not less than 35mm, and the exit pupil diameter is not less than 72mm.
2. A monocular binocular eyepiece system as set forth in claim 1 wherein:
the first lens is a biconvex lens, and the curvature radius of the surface facing the human eye is smaller than that of the surface facing the display;
the second lens is a negative meniscus lens concave to the human eye side;
the sixth lens is an approximately plano-convex lens, the eye-facing side surface is convex, and the display-facing side surface is approximately planar;
the seventh lens is a biconcave lens.
3. A monocular binocular eyepiece system as claimed in claim 2 wherein:
the third lens is a biconvex lens, and the fourth lens is a negative meniscus lens; in the positive-negative cemented lens, the radius of curvature of the cemented surface is smaller than that of the both side surfaces.
4. A monocular binocular eyepiece system as claimed in claim 2 wherein:
the third lens is a positive meniscus lens protruding to the eye side of the human body, and the fourth lens is a negative meniscus lens recessed to the display side; in the positive-negative cemented lens, the radius of curvature of the cemented surface is larger than that of both side surfaces;
the first lens group further includes a fifth lens that is a biconvex lens, the fifth lens being disposed between the fourth lens and the sixth lens.
5. A monocular binocular eyepiece system as set forth in claim 1 wherein:
the total focal length of the ocular system is f w The following relationship is satisfied: 55mm of<f w <60mm。
6. A monocular binocular eyepiece system as set forth in claim 4 wherein:
the rear intercept of the eyepiece does not exceed 6mm.
7. A monocular binocular eyepiece system as set forth in claim 4 wherein:
the overall size of the monocular binocular eyepiece system is not more than phi 80 multiplied by 115mm, and the diameter is not less than 72mm.
8. A monocular binocular eyepiece system as set forth in claim 1 wherein:
the single-cylinder binocular eyepiece system is characterized in that eyes are positioned at a diaphragm for observation, the distance value of the left eye position and the right eye position deviated from an optical axis along the Y axis or the X axis direction is within the range of +/-29 mm to +/-34 mm, and the left eye exit pupil and the right eye exit pupil of the eyes are 4mm.
9. A vehicle mounted near-to-eye display device comprising the monocular binocular eyepiece system of any one of claims 1-8, further comprising a display.
10. The in-vehicle near-to-eye display device of claim 9, wherein:
the display is any one of LCD, OLED, lcos, the display size is not greater than 3 inches and not less than 1 inch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111671065.5A CN116413901A (en) | 2021-12-31 | 2021-12-31 | Monocular binocular eyepiece system and vehicle-mounted near-to-eye display device |
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| CN202111671065.5A CN116413901A (en) | 2021-12-31 | 2021-12-31 | Monocular binocular eyepiece system and vehicle-mounted near-to-eye display device |
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| CN116413901A true CN116413901A (en) | 2023-07-11 |
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| CN202111671065.5A Pending CN116413901A (en) | 2021-12-31 | 2021-12-31 | Monocular binocular eyepiece system and vehicle-mounted near-to-eye display device |
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