CN112946885A - Near-to-eye display and image-taking head-mounted device - Google Patents
Near-to-eye display and image-taking head-mounted device Download PDFInfo
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- CN112946885A CN112946885A CN201911257038.6A CN201911257038A CN112946885A CN 112946885 A CN112946885 A CN 112946885A CN 201911257038 A CN201911257038 A CN 201911257038A CN 112946885 A CN112946885 A CN 112946885A
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- 238000003384 imaging method Methods 0.000 claims abstract description 30
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- 210000001508 eye Anatomy 0.000 description 35
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- 230000010354 integration Effects 0.000 description 1
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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
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
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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
- G02B27/017—Head mounted
-
- 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
- G02B2027/0178—Eyeglass type
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Abstract
The invention discloses a near-to-eye display and image taking head-mounted device. The near-eye display and image-taking head-mounted device comprises an imaging unit. The imaging unit is arranged on the glasses. The imaging unit includes a display device, an optical lens group, and a camera. The display device is arranged beside the glasses legs of the glasses frame of the glasses and used for projecting image light beams. The optical lens group is arranged on one side of the display equipment and used for guiding the image light beam to at least one lens of the glasses. The camera is arranged in front of at least one lens and is used for carrying out near-to-eye image taking operation on a user of the glasses. Therefore, the near-eye display and image taking head-mounted device can integrate virtual and real images, carry out remote authentication on a user, and carry out eye examination on the user, thereby helping the patient to discover and prevent eye diseases as soon as possible.
Description
Technical Field
The present invention relates to a wearable electronic device, and more particularly to a head-mounted device for near-eye display and image capture.
Background
Currently, near-eye display devices are mostly mounted on a user's glasses frame and positioned in the field of view of at least one pupil of the user to improve viewing comfort. However, the near-to-eye display device cannot perform near-to-eye imaging on a user wearing the device.
Another head-mounted display device is to place a camera at the front end of the head-mounted display device to achieve the effect of switching scenes. The user can switch at any time and show external scene after wearing the display device, borrow this can avoid the tradition to switch the equipment wearing and tearing problem that the device derived frequently will be taken when the scene. However, such a head-mounted display device can only photograph the area in front of the user, and cannot perform near-to-eye image taking on the user wearing the head-mounted display device.
Still another type of head-mounted display device is to attach the sides of the optical waveguide elements to the lens surfaces of the eyeglasses to increase the structural strength and avoid fragmentation of the projection display device. However, such a head-mounted display device cannot adjust its position on the frame, and also cannot perform near-to-eye imaging on a user wearing the head-mounted display device.
Disclosure of Invention
Therefore, an object of the present invention is to provide a near-eye display and image capture head-mounted device, wherein a display device is disposed at a side of a frame of glasses, and an optical lens assembly is used to transmit an image beam formed by the display device at the side of the frame to a field of view of at least one pupil of a user, so that the user can view an image displayed by the display device and an actual environment image simultaneously, thereby achieving an integration of virtual and real images.
Another objective of the present invention is to provide a near-eye display and image-taking head-mounted device, wherein a camera is disposed in front of glasses of a user for near-eye image-taking of the user, so that the near-eye display and image-taking head-mounted device has a function of identifying the user's identity, such as iris identification and eye tracking, so as to perform remote authentication and improve security management. In addition, the camera with the iris identification function is selected and used, and the examination questions are displayed through the display equipment, so that the examination personnel can be authenticated, the defect of examination taking over instead of others can be avoided, the convenience of remote examination can be improved, and the labor expenditure of planning examination occasions and invigilators can be reduced.
Another objective of the present invention is to provide a near-eye display and image capturing head-mounted device, wherein the camera can select different types of photographing modes and match with a suitable image recognition method, so as to perform eye-ground photographing, eye examination, eye perception detection, color blindness detection, eye observation, eye curvature change and crystal focusing photographing, and pupil zooming for the user. Therefore, the near-eye display and image taking head-mounted device can be used for the examination of the eye problems in the general clinics or medical stations, and helps patients to find and prevent eye diseases as soon as possible.
According to the above object of the present invention, a near-eye display and image capture headset is provided. The near-eye display and image-taking head-mounted device comprises an imaging unit. The imaging unit is arranged on the glasses. The imaging unit includes a display device, an optical lens group, and a camera. The display device is arranged beside the glasses legs of the glasses frame of the glasses and used for projecting image light beams. The optical lens group is arranged on one side of the display equipment and used for guiding the image light beam to at least one lens of the glasses. The camera is arranged in front of at least one lens and used for carrying out near-to-eye image taking operation on a user of the glasses.
According to an embodiment of the present invention, the optical lens assembly includes a first reflecting mirror and a second reflecting mirror. The first reflector is arranged in front of the display device. The second reflector is arranged on one side of the first reflector. The first reflector is used for reflecting the image beam projected by the display device to the second reflector, and the second reflector is used for reflecting the image beam to at least one lens.
According to an embodiment of the present invention, the optical lens assembly further includes a first lens element and a second lens element. The first lens is arranged between the display device and the first reflector and is used for collimating the image beam projected by the display device towards the first reflector. The second lens is arranged between the second reflector and the at least one lens and is used for focusing the image beam.
According to an embodiment of the present invention, the first lens element and the second lens element are aspheric lens elements.
According to an embodiment of the present invention, the first reflecting mirror is an aspheric reflecting mirror.
According to an embodiment of the present invention, the second reflecting mirror is a plane reflecting mirror and has an optical characteristic of half-penetration and half-reflection.
According to an embodiment of the invention, the second reflecting mirror is disposed between the camera and the at least one lens, and the camera can perform a near-to-eye image capturing operation through the second reflecting mirror.
According to an embodiment of the present invention, the display device is an organic light-emitting diode (OLED) display device or a liquid crystal display device.
According to an embodiment of the present invention, the camera is an iris camera for performing iris recognition and/or eye tracking of a human eye of a user.
According to an embodiment of the present invention, the head-mounted device for displaying near-eye and capturing image further includes a connecting member detachably disposed on the temple of the frame, wherein the connecting member is used to connect the imaging unit to the temple of the frame.
Compared with the prior art, the near-to-eye display and image taking head-mounted device has the following beneficial effects: through near-to-eye display and image taking head-mounted device, virtual and real images can be integrated, remote authentication can be performed on a user, eye examination can also be performed on the user, and patients can be helped to discover and prevent eye diseases as soon as possible.
Drawings
In order to make the aforementioned and other objects, features, and advantages of the present invention comprehensible, reference is made to the following description taken in conjunction with the accompanying drawings:
fig. 1 is a schematic view illustrating a near-eye display and image capture headset mounted on glasses according to an embodiment of the invention;
fig. 2 is a schematic diagram illustrating an apparatus of a near-eye display and image capture headset according to an embodiment of the invention; and
fig. 3 is a schematic view illustrating light paths of a near-eye display and image capture headset according to an embodiment of the invention.
Description of the main reference numerals:
100-near-to-eye display and image capture head-mounted device, 110-imaging unit, 112-display device, 114-optical lens group, 114 a-first reflector, 114 a' -reflecting surface, 114 b-second reflector, 114 c-first lens, 114 d-second lens, 116-camera, 118-shell, 120-connecting piece, 200-glasses, 210-frame, 212-temple, 214-frame, 220-lens, E-eye and L-image beam.
Detailed Description
As used herein, "first," "second," …, etc., do not denote any order or sequence, but rather are used to distinguish one element or operation from another element or operation described in the same technical language.
Fig. 1 and fig. 2 are schematic diagrams respectively illustrating a near-eye display and image capturing head-mounted device installed on glasses according to an embodiment of the present invention and a device schematic diagram of a near-eye display and image capturing head-mounted device according to an embodiment of the present invention. The near-eye display and imaging headset 100 of the present embodiment may be mounted on the glasses 200 of the user, thereby implementing a head-mounted type. Generally, the eyeglasses 200 comprise a frame 210 and two lenses 220, wherein the frame 210 comprises two temples 212 and two frames 214. The two temples 212 can be respectively mounted on the two ears of the user, and the two lens frames 214 can respectively receive the two lenses 220.
The near-eye display and image capture headset 100 mainly includes at least one imaging unit 110. For example, as shown in fig. 1 and fig. 2, the near-eye display and image capture headset 100 includes an imaging unit 110, and the imaging unit 110 is disposed on the right side of the frame 210 of the glasses 200. In other examples, the near-eye display and image capturing headset 100 may include two imaging units 110, and the two imaging units 110 may be respectively disposed on the left and right sides of the frame 210 of the glasses 200.
In some embodiments, each imaging unit 110 may include a display device 112, an optical lens group 114, and a camera 116. As shown in fig. 1, display device 112, optics assembly 114, and camera 116 may be integrated using housing 118 for ease of use. The display device 112 may be disposed adjacent to the temple 212 of the frame 210 of the eyeglasses 200. Fig. 3 is a schematic view illustrating light paths of a near-eye display and image capture headset according to an embodiment of the invention. The display device 112 is used for projecting the image beam L. The image beam L projected by the display device 112 may depend on the practical application requirements of the near-eye display and imaging head-mounted apparatus 100. For example, the image beam L may be a virtual image beam, an image beam required for human eye detection, or an image beam for examination of a subject. In some demonstrative examples, display device 112 may be an organic light emitting diode display device or a liquid crystal display device. Further, the display device 112 may be a display above HD resolution to provide excellent display quality.
An optical lens assembly 114 is disposed on one side of the display device 112. For example, as shown in fig. 2, the optical lens assembly 114 is disposed at the front side of the display device 112, so that the display device 112 can directly project the image beam L toward the optical lens assembly 114. The optical lens assembly 114 is used for guiding the image beam L projected by the display device 112 to a lens 220 of the glasses 200, as shown in fig. 3. In other examples, the optical lens assembly 114 can direct the image beam L projected by the display device 112 to two lenses 220 of the glasses 200, so that the user can view the image formed by the image beam L through both eyes simultaneously.
In the example of fig. 2, since the display device 112 is disposed beside the temple 212 of the frame 210, the image beam L projected by the display device 112 is guided to at least one lens 220 of the glasses 200 by the optical lens group 114 for being viewed by the user's eyes E. The optical lens assembly 114 may comprise a combination of several mirrors, or a combination of several mirrors and lenses, for example. In some examples, optic 114 includes a first mirror 114a and a second mirror 114 b. The first reflecting mirror 114a may be disposed in front of the display device 112, and the second reflecting mirror 114b may be disposed at one side of the first reflecting mirror 114 a. The first reflector 114a is used to divert the image beam L projected toward it by the display device 112 and reflect it to the second reflector 114 b. The second reflector 114b is used for redirecting the image beam L reflected by the first reflector 114a and reflecting the image beam L to the lens 220 of the glasses 200. In some exemplary examples, the first reflecting mirror 114a may have a concave arc-shaped reflecting surface 114a ', but the reflecting surface 114 a' is aspheric, i.e. the first reflecting mirror 114a is an aspheric mirror. Thus, the first reflector 114a can also magnify the image beam L. The second mirror 114b may be a plane mirror and have optical characteristics of half-penetration and half-reflection. For example, the second reflecting mirror 114b may be disposed right in front of the lens 220, and the first reflecting mirror 114a and the second reflecting mirror 114b may be disposed at the same level, and the second reflecting mirror 114b is inclined at an angle, for example, 45 degrees, with respect to the level, so as to smoothly reflect the image beam L to the lens 220. Thereby, the user's eye E can see the image light beam L projected by the display device 112 and the actual environment image around the user.
With reference to fig. 2 and fig. 3, in some examples, the optical lens assembly 114 may further optionally include a first lens element 114c and a second lens element 114 d. The first lens 114c may be disposed in front of the display device 112 and between the display device 112 and the first mirror 114 a. The first lens 114c is used for collimating the image beam L projected by the display device 112 toward the first reflector 114 a. The second lens 114d is disposed between the second reflector 114b and the lens 220 of the glasses 200. The second lens 114d is used for focusing the image beam L reflected by the second reflecting mirror 114 b. In some exemplary examples, the first lens 114c and the second lens 114d are both aspheric lenses.
Since the first reflector 114a can magnify the image beam L projected by the display device 112, the image beam L can provide an image desired by the user without using a large-sized display device 112, so that the head-mounted device 100 can be light-weighted and miniaturized for near-eye display and image capture.
Referring to fig. 2 and 3, the camera 116 is disposed in front of the lens 220 of the eyeglasses 200 and also in front of the second reflector 114 b. The camera 116 is used for performing a near-eye image capturing operation on the eyes E of the user of the eyeglasses 200. In some exemplary embodiments, the second reflecting mirror 114b is disposed between the camera 116 and the lens 220, and the camera 116 can perform a near-to-eye image capturing operation on the eye E through the second reflecting mirror 114b, that is, a light source emitted by the camera 116 can penetrate the second reflecting mirror 114b and the second lens 114d and can receive image light from the eye E through the second reflecting mirror 114 b.
The camera 116 can select different types of photographing modes according to actual use requirements. For example, the camera 116 may be an iris camera, which can perform iris recognition and/or eye tracking of the user's eyes, thereby performing remote authentication and improving safety control. In such an example, the near-eye display and image capture headset 100 may also be applied to an examination situation, in which the camera 116 is used to perform iris recognition on the examinee to identify the identity of the examinee, and the display device 112 is used to display the examination question on the examinee through the optical lens assembly 114. By the application, the examination personnel can be authenticated to avoid the defect of examination substitute, the convenience of remote examination can be improved, and the labor cost of planning examination occasions and invigilates is greatly reduced.
In other examples, the camera 116 may be a fundus camera, so that the near-eye display and imaging headset 100 may be used to directly photograph and inspect the fundus of the user's eye E. Traditionally, the retinal examination is mydriatic indirect fundus examination, the process takes at least about 30 minutes to 1 hour, and mydriatic agents cause blurred vision and photophobia, so that the examinees cannot drive or work. When the near-eye display and image taking head-mounted device 100 is used for fundus photographing and examination, the mydriatic agent does not need to be dripped, and the fundus photographing and examination can be completed within 5 minutes, so that the discomfort of the eyes of the examinee can be relieved, and the examination time can be greatly shortened.
In still other examples, the near-eye display function and the eye photographing function of the image capturing head set 100 are combined, and the reactions of the human eyes to various colors can be directly detected through a series of color weakness image designs, so that the color weakness level of the human eyes can be analyzed in detail.
Therefore, by selecting different types of cameras 116 and matching with the corresponding image recognition and detection methods, the near-eye display and image capture headset 100 can perform eye fundus photography, eye examination, eye perception detection, color blindness detection, eye observation, photographing of the curvature change of the crystalline lens and crystalline lens focusing, and eye detection such as pupil contraction.
Referring to fig. 1 and fig. 2, the near-eye display and image capture headset 100 may optionally include a connecting member 120. In some examples, the connector 120 can be removably disposed on the temple 212 of the frame 210. The connecting member 120 can couple the temple 212 to the imaging unit 110, and thus the imaging unit 110 can be coupled to the temple 212 of the frame 210 using the connecting member 120. In some exemplary examples, the imaging unit 110 can be rotated by adjusting the connecting member 120, so as to adjust the position of the imaging unit 110 on the frame 210, thereby facilitating the user to adjust the display and image capturing positions.
As can be seen from the foregoing embodiments, the present invention has an advantage in that the display device of the near-eye display and image capture head-mounted device is disposed at the side of the glasses frame, and the optical lens assembly is used to transmit the image beam formed by the display device at the side of the glasses frame to the field of view of at least one pupil of the user, so that the user can see the image displayed by the display device and the actual environment image at the same time, thereby achieving the visual effect of integrating virtual and real images.
As can be seen from the foregoing embodiments, another advantage of the present invention is that the camera of the near-eye display and image capture headset of the present invention is disposed in front of the glasses of the user, so as to capture images of the user near the eye, and therefore the near-eye display and image capture headset has the functions of identifying the user by iris identification and eyeball tracking, thereby performing remote authentication and improving security management. In addition, the camera can be used for authenticating the identity of the user such as iris identification, and then the examination questions are displayed by the display equipment, so that the examination personnel can be authenticated to avoid the defect of examination substitute, the convenience of remote examination can be improved, and the manpower expenditure of planning the examination occasion and the invigilator can be reduced.
In view of the above, another advantage of the present invention is that the camera of the near-eye display and image capture headset of the present invention can select different types of photographing modes according to actual requirements and match with a suitable image recognition method, so as to perform eye fundus photographing, eye examination, eye sensing detection, color blindness detection, eye observation, photographing of the curvature change of the crystal and the crystal focusing, and eye zooming detection for the user. Therefore, the near-eye display and image taking head-mounted device can be used for the examination of the eye problems in the general clinics or medical stations, and helps patients to find and prevent eye diseases as soon as possible.
While the present invention has been described with reference to the embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A near-eye display and image capture head-mounted device, comprising:
the imaging unit is arranged on the glasses, wherein the imaging unit comprises:
the display equipment is arranged beside the glasses legs of the glasses frame of the glasses and used for projecting image light beams;
the optical lens group is arranged on one side of the display equipment and used for guiding the image light beams to at least one lens of the glasses; and
and the camera is arranged in front of the at least one lens and is used for carrying out near-to-eye image taking operation on the user of the glasses.
2. The apparatus of claim 1, wherein the optical lens assembly comprises:
the first reflector is arranged in front of the display equipment; and
the second reflector is arranged on one side of the first reflector, wherein the first reflector is used for reflecting the image beam projected by the display equipment to the second reflector, and the second reflector is used for reflecting the image beam to the at least one lens.
3. The apparatus for near-eye display and image capture as claimed in claim 2, wherein said optical lens assembly further comprises:
the first lens is arranged between the display equipment and the first reflector and used for collimating the image light beam projected by the display equipment towards the first reflector; and
and the second lens is arranged between the second reflector and the at least one lens and is used for focusing the image light beam.
4. The near-eye display and imaging head device according to claim 3, wherein each of the first lens element and the second lens element is an aspheric lens element.
5. The near-to-eye display and image capture headset of claim 3, wherein the first mirror is an aspheric mirror.
6. The near-to-eye display and image capture headset of claim 3, wherein the second reflector is a plane reflector and has transflective optical properties.
7. The near-eye display and image capture headset of claim 2, wherein the second reflector is interposed between the camera and the at least one lens, and the camera is capable of performing the near-eye image capture operation via the second reflector.
8. The near-to-eye display and imaging headset of claim 1, wherein the display device is an organic light emitting diode display device or a liquid crystal display device.
9. The near-eye display and imaging headset of claim 1, wherein the camera is an iris camera for iris recognition and/or eye tracking of the user's eye.
10. The near-eye display and imaging headset of claim 1, further comprising a connector detachably disposed on the temple of the frame, wherein the connector is configured to couple the imaging unit to the temple of the frame.
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| CN201911257038.6A CN112946885A (en) | 2019-12-10 | 2019-12-10 | Near-to-eye display and image-taking head-mounted device |
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| CN201911257038.6A CN112946885A (en) | 2019-12-10 | 2019-12-10 | Near-to-eye display and image-taking head-mounted device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116736537A (en) * | 2023-04-03 | 2023-09-12 | 江苏泽景汽车电子股份有限公司 | Head-mounted augmented reality equipment |
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