Visual assistance method and system for people with visual dysfunction and intelligent AR glasses
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A kind of technology of AR glasses and vision function, which can be applied in ophthalmology treatment, eye exercise equipment, and equipment to help people walk, etc. has a covert effect
Pending Publication Date: 2021-09-21
SHANGHAI RAYPAI PHOTONIC CRYSTAL LTD
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[0003] Traditional vision aids, such as optical vision aids, have been unable to meet the needs of most patients with visual impairment due to their shortcomings such as single function, poor visual image quality, and inconvenient portability.
The closed VR device on...
Method used
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Embodiment 1
[0026] Such as figure 1 As shown, a visual aid method for visually impaired persons, comprising:
[0027] S1, providing AR glasses based on planar waveguide imaging;
[0028] AR glasses based on planar waveguide imaging are mainly composed of microdisplays and waveguide display modules. The belt will not cause pressure on the bridge of the nose and the head, and will not attract attention, which improves the wearing comfort.
[0029] AR glasses include a camera system and an input device; the camera system is used to record the surrounding environment information; the input device includes buttons, touch pads and Bluetooth control devices, which are operated by the user and feed back signals to the circuit control system.
[0030] S2, using AR glasses imaging to detect the wearer's eye function parameters including central visual acuity, contrast sensitivity, fusion function and stereo vision;
[0031] Such as figure 2 As shown, the Snellen diagram is projected to the the...
Embodiment 2
[0043] A visual aid system for visually impaired persons, used to implement the method of Embodiment 1.
[0044] All technical solutions of various devices or equipment combined with software produced by the above-mentioned visual aid method for visually impaired persons belong to the protection scope of the patent of the present invention.
Embodiment 3
[0046] A kind of smart AR glasses, which is used to implement the method of Embodiment 1.
[0047] Compared with the visual assistance system for visually impaired persons in the second embodiment, the smart AR glasses in this embodiment are the best choice for implementing the method described in the first embodiment.
[0048] In one embodiment, a color-changing film is coated on the planar waveguide, and the color-changing film can change color according to changes in the intensity of external ultraviolet rays, so as to block external strong light and protect the eyes.
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Abstract
The invention discloses a visual assistance method for people with visual dysfunction. The method comprises the following steps: S1, providing AR glasses based on planar waveguide imaging; s2, detecting eye function parameters, including central visual acuity, contrast sensitivity, fusion function and stereoscopic vision, of a wearer by using AR glasses imaging; s3, the camera system tracks an observation target of the wearer, shooting is carried out after accurate positioning, and a target image is obtained; s4, performing optical amplification and background digital amplification on the obtained digital image information, performing feature enhancement according to the functional parameters of the eyes of the wearer, and outputting imaging light; and S5, imaging the imaging light in the retina of the wearer after the imaging light passes through the planar waveguide. Correspondingly, the invention further discloses a visual assistance system for people with visual dysfunction and the intelligent AR glasses. According to the invention, people with visual dysfunction can be helped to recover normal life, work and study, necessary scientific rehabilitation training can be carried out, and patients can be helped to develop and effectively use residual vision.
Description
technical field [0001] The invention relates to the technical field of electronic vision aids, in particular to a visual aid method, system and smart AR glasses for visually impaired persons. Background technique [0002] At present, abnormal binocular vision function is more and more common in clinical practice, and its main causes include amblyopia, congenital or acquired cataract, uncorrectable refractive error, diabetic retinopathy, etc., usually manifested as visual impairment, abnormal color vision, night blindness, Day blindness, visual field defect, metamorphopsia, flash vision, visual fatigue, abnormal stereopsis and abnormal contrast sensitivity seriously affect the normal life of visually impaired persons. [0003] Traditional vision aids, such as optical vision aids, have been unable to meet the needs of most patients with visual impairment due to their shortcomings such as single function, poor visual image quality, and inconvenient portability. Closed VR devic...
Claims
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