CN217932279U - Augmented reality optical system and head-mounted display - Google Patents
Augmented reality optical system and head-mounted display Download PDFInfo
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- CN217932279U CN217932279U CN202220617900.0U CN202220617900U CN217932279U CN 217932279 U CN217932279 U CN 217932279U CN 202220617900 U CN202220617900 U CN 202220617900U CN 217932279 U CN217932279 U CN 217932279U
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Abstract
The utility model discloses an augmented reality optical system and head-mounted display, install augmented reality display module in the main mirror holder of head-mounted display, augmented reality display module sends the image light beam by the display screen, leads to first part to penetrate partial reflection element and second part to penetrate partial reflection element downwards, assembles the formation of image through the reflection of many times, and produces the effect of augmented reality; meanwhile, the detachable diopter adjusting module is arranged on the inner side or the outer side of the main spectacle frame and comprises at least one diopter adjusting lens so as to realize diopter adjustment, further provide a clearer image for a user with ametropia, flexibly detach or replace the diopter adjusting module and greatly improve the use convenience.
Description
Technical Field
The present invention relates to augmented reality technologies, and more particularly to an augmented reality optical system and a head-mounted display.
Background
Augmented Reality (AR) is a technology derived from Virtual Reality (VR), which is mainly to capture and position a scene in a real space by a camera, add virtual objects and information to the real space by real-time operation of a computer program, and display a combination of virtual and real information by a display.
Currently, head-mounted displays (Head-mounted displays) are the most common augmented reality devices. The head-mounted display is usually in the form of a visor or a helmet, the display screen is close to the eyes of the wearer, and the virtual image output by the display screen is projected to the eyes of the wearer, so that the virtual image is combined with the surrounding environment to obtain information which cannot be directly obtained in reality.
However, the optical display module of the current head-mounted display cannot adjust diopter, and cannot meet the viewing requirements of users with abnormal vision. When a user with abnormal vision, particularly a person with ametropia such as myopia, hyperopia, presbyopia or astigmatism uses the head-mounted display, the user must wear vision correction glasses to correct the vision to see clearly the displayed picture, and the vision correction glasses occupy certain space and weight, so that the user is more troubled and is easy to feel uncomfortable; and the visual correction glasses and the head-mounted display can also generate conflict in structure, and can not be worn at the same time, thereby greatly influencing the experience effect of the user.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective is providing an augmented reality optical system and wear-type display, will augment reality display module and refraction adjusting module and make the combination to install respectively in wear-type display's main mirror holder and detachable sub-mirror holder, let ametropia's user needn't wear vision correction glasses again, also can watch clear virtual image, thereby obtain complete augmented reality's use and experience.
Another object of the present invention is to provide an augmented reality optical system and a head-mounted display, wherein the refractive adjustment module is installed in the detachable sub-frame, and can be easily detached and replaced according to the user's demand or eyesight, so as to improve the convenience of use and reduce the cost of use.
To achieve the above object, the present invention provides an augmented reality optical system applied to a head-mounted display having a main mirror frame and a sub-mirror frame, the sub-mirror frame being detachably mounted in an inner side or an outer side of the main mirror frame, the augmented reality optical system including an augmented reality display module and a refraction adjusting module, the augmented reality display module being mounted in the main mirror frame and including: a display screen for emitting image light beam; a first partially-transmissive partially-reflective element disposed below the display screen for receiving the image beam from the display screen and partially transmitting and partially reflecting the image beam; and a second partially transmitting partially reflecting element adjacent to the first partially transmitting partially reflecting element for receiving the image beam reflected by the first partially transmitting partially reflecting element, reflecting the image beam back to the first partially transmitting partially reflecting element by the second partially transmitting partially reflecting element, transmitting the image beam through the first partially transmitting partially reflecting element, and emitting the image beam into human eyes. A diopter adjustment module is mounted in the sub-frame, the diopter adjustment module including at least one diopter adjustment lens disposed with respect to the first partially transmissive partially reflective element or the second partially transmissive partially reflective element.
According to the embodiment of the present invention, the sub-frame is installed inside the main frame, and the diopter adjustment lens is located between the first partial transmission portion reflection element and the human eye.
According to the utility model discloses an embodiment, aforementioned display screen is fixed in image light beam's shortest optical path position department.
According to the utility model discloses an embodiment, aforementioned sub-mirror holder is installed in the outside of main mirror holder, and the diopter adjustment lens is located the second part and pierces through partial reflection element and keep away from one side of people's eye.
According to the utility model discloses an embodiment, displacement comes the distance that the adjustment display screen pierces through partial reflection element for first part about aforementioned display screen can be done to focus regulation.
According to an embodiment of the present invention, the first partially transparent partially reflective element has an inclination angle to turn the light path of the image beam.
According to an embodiment of the present invention, the first partial transmission partial reflection element and the second partial transmission partial reflection element are planar or curved, and the surface thereof is a plated film or a film.
According to an embodiment of the present invention, the aforementioned dioptric adjustment lens satisfies the condition of f < -0.1 meter or f >0.1 meter, f being the focal length of the dioptric adjustment lens.
According to an embodiment of the present invention, the aforementioned diopter adjustment lens is a near vision lens, a far vision lens, an astigmatism lens or a presbyopia lens.
According to an embodiment of the present invention, a lens is further disposed between the display panel and the first partially transparent partially reflective element to guide the image beam into the first partially transparent partially reflective element.
Additionally, the utility model provides a head-mounted display also, including aforementioned augmented reality optical system and main mirror holder and sub-mirror holder, sub-mirror holder installs in the inboard or the outside of main mirror holder for detachably.
According to the utility model discloses an embodiment, aforementioned sub mirror holder passes through magnetic adsorption or centre gripping in main mirror holder.
The purpose, technical content, features and effects of the present invention will be more readily understood through the following detailed description of specific embodiments.
Drawings
Fig. 1 is a cross-sectional view of a head-mounted display according to a first embodiment of the present invention.
Fig. 2 is an exploded view of an augmented reality optical system according to a first embodiment of the present invention.
Fig. 3 is a cross-sectional view of a head-mounted display according to a second embodiment of the present invention.
Fig. 4 is an exploded view of an augmented reality optical system according to a second embodiment of the present invention.
Fig. 5 is an exploded view of an augmented reality optical system according to a third embodiment of the present invention.
Fig. 6 is an exploded view of an augmented reality optical system according to a fourth embodiment of the present invention.
Description of reference numerals: 10-augmented reality optical system; 20-a main frame; 30-a sub-frame; 40-human eye; 110-augmented reality display module; 111-a display screen; 112-a first partially transmissive partially reflective element; 113-a second partially transmissive partially reflective element; 114-coating; 115-coating; 116-a lens; 120-a refractive adjustment module; 121-a diopter adjusting lens; 130-image beam; 140-ambient light beam.
Detailed Description
Embodiments of the present invention will be further explained with reference to the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts. In the drawings, the shape and thickness may be exaggerated for simplicity and convenience. It is to be understood that elements not specifically shown in the drawings or described in the specification are of a type well known to those of ordinary skill in the art. Various changes and modifications can be made by one skilled in the art based on the teachings of the present invention.
Please refer to fig. 1 and fig. 2, which are a cross-sectional view and an exploded view of a head-mounted display and an augmented reality optical system 10 thereof according to a first embodiment of the present invention, respectively. The augmented reality optical system 10 of the present embodiment is disposed in a head-mounted display, the head-mounted display has a main frame 20 and a sub-frame 30, and the sub-frame 30 is detachably mounted on the outer side (right side in fig. 1) of the main frame 20, for example, the sub-frame 30 may be magnetically attached or clamped to the main frame 20. The augmented reality optical system 10 includes an augmented reality display module 110 and a dioptric adjustment module 120, and the augmented reality display module 110 is mounted in the main frame 20 (left side of fig. 1) and the dioptric adjustment module 120 is mounted in the sub-frame 30. A display screen 111 is disposed above the augmented reality display module 110, a first partially transmissive partially reflective element 112 is disposed below the display screen 111, and a second partially transmissive partially reflective element 113 is disposed on a side of the first partially transmissive partially reflective element 112 away from the human eye 40. The diopter adjustment module 120 comprises a diopter adjustment lens 121, and the diopter adjustment lens 121 is disposed corresponding to the second partially transmissive partially reflective element 113 and is located on a side of the second partially transmissive partially reflective element 113 away from the human eye 40.
As shown in fig. 2, in the first embodiment, the display 111 emits the image beam 130 to the first partially transmissive partially reflective element 112. The first partially transmissive partially reflective element 112 receives the image beam 130 and reflects a portion of the image beam 130 to the second partially transmissive partially reflective element 113, and the rest of the image beam penetrates the first partially transmissive partially reflective element 112. The second partially transmissive partially reflective element 113 receives the image beam 130 reflected by the first partially transmissive partially reflective element 112, and reflects part of the image beam 130 passing through back to the first partially transmissive partially reflective element 112, and the rest of the image beam 130 passes through the second partially transmissive partially reflective element 113, and after the image beam 130 reflected back to the first partially transmissive partially reflective element 112 is partially reflected by the first partially transmissive partially reflective element 112, the rest of the image beam 130 passes through the first partially transmissive partially reflective element 112 and is guided into the human eye 40. On the other hand, after the ambient light beam 140 passes through the diopter adjustment lens 121 and is partially reflected by the second partially transmissive partially reflective element 113, the rest of the ambient light beam 140 sequentially passes through the second partially transmissive partially reflective element 113 and the first partially transmissive partially reflective element 112, and is partially reflected to the display screen 111 by the first partially transmissive partially reflective element 112, and the rest of the ambient light beam passes through the first partially transmissive partially reflective element 112 and is guided into the human eye 40. Thus, the human eye 40 can view the virtual image from the display screen 111 in real environment after being refractive-corrected by the refraction adjusting lens 121.
The first partially-transmissive partially-reflective element 112 and the second partially-transmissive partially-reflective element 113 of the present invention can be a plane or a curved surface, respectively, and can form a functional coating film or a film sheet on the surface of the substrate of the plane or the curved surface by a coating method. In the first embodiment, the first partially transmissive partially reflective element 112 forms a single-sided coating 114, and the second partially transmissive partially reflective element forms a double-sided coating 115, so as to achieve the effect of partially transmitting and partially reflecting the image beam 130, and the first partially transmissive partially reflective element 112 has an inclination angle to turn the optical path of the image beam 130, so as to receive the image beam 130 of the display 111 and reflect the image beam to the second partially transmissive partially reflective element 113.
The utility model provides a diopter adjustment module 120 that sets up can correspond according to the user's demand and set up one or more diopter adjustment lens 121, for example, both eyes all are the people of near-sighted 100 degrees, just correspond and are provided with the diopter adjustment lens 121 of a set of 100 degrees, and other near-sighted degrees are the diopter adjustment lens 121 of other corresponding powers. In addition, the diopter adjusting lens 121 of the present invention may be a near vision lens, a far vision lens, an astigmatism lens or a presbyopia lens. In general, the diopter lens 121 will satisfy the condition of f < -0.1 meter or f >0.1 meter, where f is the focal length of the diopter lens 121.
In the first embodiment, the display screen 111 is configured to be displaced up and down to adjust the distance of the display screen 111 relative to the first partially transmissive partially reflective element 112, which is used to adjust the focal length; when the sub-frame 30 is not mounted (i.e., detached), the user with ametropia may not see the virtual image from the display screen 111 clearly, and the external environment may not be clear, and when the sub-frame 30 is mounted, the user may see the external environment clearly, but if the virtual image looks blurred, the position of the display screen 111 may be adjusted up and down to adjust the focal length, so as to correct the sharpness of viewing the virtual image.
Please refer to fig. 3 and fig. 4, which are a cross-sectional view and an exploded view of a head-mounted display and an augmented reality optical system 10 thereof according to a second embodiment of the present invention. The difference from the first embodiment is that the sub-frame 30 is detachably mounted inside the main frame 20, so that the diopter adjustment lens 121 of the diopter adjustment module 120 is disposed corresponding to the first partially transparent partially reflective element 112 and is located between the first partially transparent partially reflective element 112 and the human eye 40.
As shown in fig. 4, in the second embodiment, the display 111 emits the image beam 130 to the first partially transmissive partially reflective element 112. The first partially transmissive partially reflective element 112 receives the image beam 130 and reflects a portion of the image beam 130 to the second partially transmissive partially reflective element 113, and the rest of the image beam penetrates the first partially transmissive partially reflective element 112. The second partially transmissive partially reflective element 113 receives the image beam 130 reflected by the first partially transmissive partially reflective element 112, and reflects a portion of the passed image beam 130 back to the first partially transmissive partially reflective element 112, and the rest of the passed image beam 130 penetrates the second partially transmissive partially reflective element 113, and after the image beam 130 reflected back to the first partially transmissive partially reflective element 112 is partially reflected by the first partially transmissive partially reflective element 112, the rest of the passed image beam 130 penetrates the first partially transmissive partially reflective element 112, and is guided into the human eye 40 through the refraction adjusting lens 121. On the other hand, after the ambient light beam 140 is partially reflected by the second partially transmissive partially reflective element 113, the rest of the ambient light beam 140 sequentially passes through the second partially transmissive partially reflective element 113 and the first partially transmissive partially reflective element 112, and is partially reflected to the display screen 111 by the first partially transmissive partially reflective element 112, and the rest of the ambient light beam 140 passes through the first partially transmissive partially reflective element 112, and is guided into the human eye 40 through the refraction adjusting lens 121, so that the human eye 40 can view a virtual image superimposed on the display screen 111 in the real environment after being refraction-corrected by the refraction adjusting lens 121.
In the second embodiment, the display 111 can be directly fixed at the shortest optical path position of the image beam 130, so as to shorten the distance between the display 111 and the first partially transmissive partially reflective element 112, so as to reduce the volume of the augmented reality optical system 10 and miniaturize the size of the head-mounted display; when the sub-frame 30 is not mounted (i.e., detached), the virtual image on the display screen 111 is not clearly visible to the user with the ametropia problem, and the external environment is not clear, and when the sub-frame 30 is mounted, the virtual image on the display screen 111 and the external environment are clearly visible to the user because the ametropia of the human eye has been corrected by the diopter adjusting lens 121. In addition, the display screen 111 can also be configured to be displaced up and down to adjust the distance between the display screen 111 and the first partially transmissive partially reflective element 112; if the power of the diopter adjusting lens 121 is limited, the display screen 111 may be repositioned up or down to help adjust the focal length in order to see the virtual image of the display screen 111.
In addition, the augmented reality display module 110 of the present invention may further include a lens 116 for guiding light. As shown in fig. 5 and 6, in the third and fourth embodiments, a lens 116 is disposed between the display 111 and the first partially transmissive partially reflective element 112, the lens 116 may be a single lens or a lens group composed of multiple lenses, the lens 116 may be a convex lens, a concave lens, or any combination of a convex lens and a concave lens, and the concave-convex direction may be changed arbitrarily. The lens 116 can guide the image beam 130 emitted from the display 111 into the first partially transmissive partially reflective element 112, and cooperate with other elements to complete the image formation.
To sum up, according to the utility model provides an augmented reality optical system and head-mounted display mainly are based on the augmented reality display module in the main mirror holder, but rethread mobile dismantlement's sub-mirror holder of collocation and the function of selective addition refraction adjusting module for ametropia's user need not wear vision correction glasses simultaneously outside the head-mounted display, can clearly see the virtual image that comes from the display screen that superposes in real environment, thereby can improve comfort level and the convenience that augmented reality experienced. Moreover, the user can easily and automatically detach and replace the ametropia adjusting module according to different use purposes and visual acuity degrees, the operation is convenient, the flexibility is high, even the shared use by multiple people can be achieved, the use cost is greatly reduced, and the ametropia user and the normal vision general user can both enjoy the experience effect of the complete augmented reality.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, the equivalent changes or modifications according to the features and spirit of the claims should be included in the scope of the present invention.
Claims (12)
1. An augmented reality optical system is applied to a head-mounted display, and is characterized in that the head-mounted display is provided with a main lens frame and a sub lens frame, the sub lens frame is detachably arranged on the inner side or the outer side of the main lens frame, and the augmented reality optical system comprises:
an augmented reality display module mounted within the main frame and comprising:
a display screen for emitting an image beam;
a first partially-transmissive partially-reflective element disposed below the display screen for receiving the image beam from the display screen and partially transmitting and partially reflecting the image beam; and
a second partially transmitting partially reflecting element adjacent to the first partially transmitting partially reflecting element for receiving the image beam reflected by the first partially transmitting partially reflecting element, reflecting the image beam back to the first partially transmitting partially reflecting element by the second partially transmitting partially reflecting element, transmitting the image beam through the first partially transmitting partially reflecting element, and emitting the image beam into human eyes; and
a refractive adjustment module mounted within the sub-frame, the refractive adjustment module comprising at least one refractive adjustment lens disposed in correspondence with the first partially transmissive partially reflective element or the second partially transmissive partially reflective element.
2. The augmented reality optical system of claim 1, wherein the sub-frame is mounted inside the main frame, the diopter adjustment lens being positioned between the first partially transmissive partially reflective element and the human eye.
3. The augmented reality optical system of claim 2, wherein the display screen is fixed at a position of a shortest optical path of the image beam.
4. The augmented reality optical system of claim 1, wherein the sub-frame is mounted on the outside of the main frame, the diopter adjustment lens being located on the side of the second partially transmissive partially reflective element away from the human eye.
5. The augmented reality optical system of claim 1, wherein the display screen is capable of being displaced up and down to adjust a distance of the display screen relative to the first partially transmissive partially reflective element to adjust a focal length.
6. The augmented reality optical system of claim 1, wherein the first partially transmissive partially reflective element has an inclination angle to bend the optical path of the image beam.
7. The augmented reality optical system of claim 1, wherein the first partially transmissive partially reflective element and the second partially transmissive partially reflective element are flat or curved and have a surface coated with a film or a film.
8. The augmented reality optical system of claim 1, wherein the dioptric accommodation lens satisfies the condition of f < -0.1 m or f >0.1 m, f being the focal length of the dioptric accommodation lens.
9. The augmented reality optical system of claim 1, wherein the dioptric accommodation lens is a near vision lens, a far vision lens, an astigmatic lens or a presbyopic lens.
10. The augmented reality optical system of claim 1, further comprising a lens between the display screen and the first partially transmissive partially reflective element to direct the image beam into the first partially transmissive partially reflective element.
11. A head-mounted display comprising the augmented reality optical system of any one of claims 1 to 10, and the main frame and the sub-frame, wherein the sub-frame is detachably attached to the inside or outside of the main frame.
12. A head-mounted display as recited in claim 11, wherein the sub-frame is magnetically attached or held to the main frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220617900.0U CN217932279U (en) | 2022-03-21 | 2022-03-21 | Augmented reality optical system and head-mounted display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220617900.0U CN217932279U (en) | 2022-03-21 | 2022-03-21 | Augmented reality optical system and head-mounted display |
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| CN217932279U true CN217932279U (en) | 2022-11-29 |
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| CN202220617900.0U Active CN217932279U (en) | 2022-03-21 | 2022-03-21 | Augmented reality optical system and head-mounted display |
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| Date | Code | Title | Description |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230504 Address after: Room 102, Building 1, No. 8 Shangsha Zhongnan Road, Chang'an Town, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Shuangying Optoelectronic Technology Co.,Ltd. Address before: Taoyuan City, Taiwan, China Patentee before: SHUANGYING TECHNOLOGY Co.,Ltd. Patentee before: Dongguan Shuangying Photoelectric Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |