CN1908729B - Method and device for preventing eye tiredness in wearing head-wearing glasses display - Google Patents
Method and device for preventing eye tiredness in wearing head-wearing glasses display Download PDFInfo
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- CN1908729B CN1908729B CN200610062184XA CN200610062184A CN1908729B CN 1908729 B CN1908729 B CN 1908729B CN 200610062184X A CN200610062184X A CN 200610062184XA CN 200610062184 A CN200610062184 A CN 200610062184A CN 1908729 B CN1908729 B CN 1908729B
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Abstract
The disclosed method to prevent fatigue when wearing glass-type display comprises: letting the top edge of system image level or lower than people horizontal sight line, and keeping the included angle alpha between horizontal sight line and image normal line in -25~-10deg, wherein the device comprises: a body 1 with front/back shell 11/12, a left/right lens root 6/5, a glass frame 4, a PCB 2, an image display module 3, a glass interface 61 connected with input end of PCB 2 and external signal, an image wafer 3 connected with output of 61, a window plane 121 behind 12, and a nose frame 7. This invention has benefit for people health.
Description
Technical field
The present invention relates to a kind of method that prevents eye tiredness in wearing head-wearing glasses display, and the head-wearing glasses display of realizing this method, the latter refers in particular to a kind of fore shell and back cover of comprising, described fore shell and back cover constitute a housing, be built-in with mirror holder, circuit board at housing, be provided with image at the two ends of mirror holder and show module, circuit board output terminal and image show that module joins the external input signal of input end; Described housing and glasses are worn the head-wearing glasses display that mechanism joins.
Background technology
As everyone knows, eyes by eyeball, optic nerve and look the road, accessory organs of eye three parts are formed.Eyeball comprises tissues such as wall of eyeball, intraocular chamber and content, nerve, blood vessel, by cornea, sclera, iris, ciliary body and choroid, retina are arranged outward inward, has the pupil musculus expansor on the iris, central authorities are pupil, a layer suspensorium arranged on the ciliary body, claim ciliary muscle again, the most important parts of intraocular chamber and content are crystalline lenses, crystalline lens is the whippy transparent body, shape such as biconvex lens, be positioned at after the iris, pupil and before the vitreum, under the ciliary muscle effect, can adjust focal length, this characteristics light characteristic of complaining about being wronged.Accessory organs of eye comprises eyelid, conjunctiva, lacrimal apparatus, extraocular muscle and eye socket.Eyelid is exactly usually said eyelid.Extraocular muscle comprises superior rectus, inferior rectus muscle, internal rectus muscle and musculus rectus lateralis, musculus obliquus dorsalis and inferior oblique muscle.Eye socket is made of skull, is inside slightly, is inclined upwardly.
Take a broad view of eye structure and characteristics of human body, human eye all can produce visual fatigue when inappropriate looking thing or viewing location for a long time, in general, the visual fatigue of eyes comprises following several aspect: the diopter fatigue of eyes, flesh shape fatigue, collectivity fatigue, degrees of fusion fatigue, environment and look the fatigue of deposits yields and fatigue that the health factor produces, wherein diopter fatigue accounts for asthenopic more than 80%, data shows: look object distance from minimum during to 25cm human eye can produce the diopter adjustment, the right and left eyes dioptric is inconsistent also can to cause the uncomfortable reaction of big mesencephalic centre.Obviously when human eye is watched near object, the lens contraction can cause the dioptric reaction, the depth of parallelism of eyes changes because object furthers simultaneously, thereby converge set eyes meeting productive set phenomenon to the object center position, the pupil musculus expansor, extraocular muscle, ciliary muscle does to carry out the balance adjustment with the impulsion of big mesencephalic centre electricity can form the reaction of flesh shape, when object leans on too closely, because it is uncomfortable that right and left eyes video difference can cause when differing too big that Brodmann area image co-registration difficulty produces, the light power that also has environment, extraneous strong reflected glare, potential of hydrogen, the sharpness and the health quality of looking thing all can produce related influence to human eye work, so though human eye visual fatigue feature feature independently has very big relevance each other.
Existing head-wearing display, generally comprise fore shell and back cover, described fore shell and back cover constitute a cavity, be built-in with mirror holder, circuit board at cavity, be provided with image at the two ends of mirror holder and show module, circuit board output terminal and image show that module joins external input power supply of input end and audio frequency, vision signal; Described housing and glasses are worn mechanism and are joined; It is the display device that a kind of ray machine electricity is combined closely, and the microdisplay optical system generates virtual image, and these image imagings are in the inside of mirror body, and the beholder can see the amplification virtual image identical with display screen in kind.The head-wearing display is varied in the market, as helmet-type, wear-type, glasses type displayer etc.Because in the design, these products all have a common defective, watch the image time unsuitable oversize exactly, cause that easily eyes do not accommodate the generation visual fatigue; And the problem that can produce bridge of the nose constriction when wearing.
Summary of the invention
The technical matters that the present invention solves is to overcome above-mentioned shortcoming, and a kind of method that prevents eye tiredness in wearing head-wearing glasses display is provided, and can watch for a long time and do not cause the asthenopic head-wearing glasses display of eyes.
The present invention also has a goal of the invention: it can alleviate the generation of bridge of the nose constriction.
Technical scheme of the present invention is: a kind of method that prevents eye tiredness in wearing head-wearing glasses display, maintenance system are imaged between human eye the place ahead 0.7m to 2.5m place; And about watch same object, eyes diopter unanimity; Make the coboundary of system imaging concordant with the horizontal line of sight of human eye or below horizontal line of sight; Angle α between the normal of the maintenance horizontal line of sight and the plane of delineation is between-10 degree are spent to-25; And avoid external environment strong reflection dazzle not allow the light direct beam eyes.Only in this way could keep watching image for a long time, and can avoid visual fatigue.
A kind of head-wearing glasses display disclosed in this invention, comprise fore shell and back cover, described fore shell and back cover constitute a mirror body, be built-in with mirror holder, circuit board at the mirror body, in mirror holder, be provided with image shows wafer, optical lens, circuit board output terminal and image shows wafer are joined, external input power supply of input end and audio frequency, vision signal; Described mirror body and glasses are worn mechanism and are joined; It is characterized in that: between the normal on the form plane of described mirror body and the angle α between the horizontal line of sight are-10 ° to-25 °.
The normal on the form plane of described mirror body and the optimum angle α between the horizontal line of sight are-15 °.
The coboundary on described form plane is positioned under the horizontal line of sight.
Described mirror holder is made up of two parts, regulates interpupillary distance by sawtooth between two parts.
Opposite side at mirror holder respectively is provided with two dried font screw rods, and the U-shaped of the lens carrier of described mirror holder picks up the ears to be stuck in the dried font screw rod regulating tank.
It is the mirror leg that described glasses are worn mechanism, and described mirror leg is positioned at described housing two ends.
The power supply of described circuit board and the external interface of electric signal are positioned at a side of described mirror leg front end; The volume of described circuit board, brightness regulation button are positioned at the opposite side of described mirror leg front end.
Also be provided with crown suspender belt at described mirror midleg.
A rotating shaft is respectively established at described mirror body two ends, is provided with axis hole at described mirror leg front end, and the rotating shaft on the mirror body is enclosed within the described axis hole, in order to the normal on the form plane of regulating the mirror body and the angle α between the horizontal line of sight.
It is the helmet that described glasses are worn mechanism.
It is the headband ring that described glasses are worn mechanism, and described headband ring links to each other with the back cover middle part by connecting hinge.
The present invention is owing to adopted the normal on described form plane and the angle α between the horizontal line of sight for being positioned at method and structure under the horizontal line of sight with the coboundary on described form plane between-10 ° to-25 °, like this, can guarantee that eyes can watch image for a long time and not cause the eyes visual fatigue; Owing to adopted the mirror midleg also to be provided with the structure of crown suspender belt or helmet-type, like this, can eliminate or alleviate bridge of the nose constriction in addition.
Description of drawings
Fig. 1, be the perspective exploded view of a kind of embodiment glasses type displayer of the utility model;
Fig. 2, be combination embodiment illustrated in fig. 1 back perspective view;
Fig. 3, be combination trailing flank structural representation embodiment illustrated in fig. 1;
Mirror body trailing flank master looks synoptic diagram among Fig. 4, Fig. 1;
The decomposing schematic representation of mirror holder among Fig. 5, Fig. 1;
Mirror holder trailing flank master looks synoptic diagram among Fig. 6, Fig. 1;
The perspective view of Fig. 7, another kind of mirror body embodiment;
The perspective view of Fig. 8, the another kind of embodiment head-type of the utility model display;
The perspective view of Fig. 9 A, traditional helmet-mounted display;
The perspective view of the helmet formula display after Fig. 9 B, the utility model improve.
Embodiment
In order when watching near thing, the eyes visual fatigue to be reduced to minimum, should keep suitable and look object distance from (greater than 50cm), preferably will look thing is placed on human eye the place ahead 0.7m to 2.5m and locates, and about watch same object, the image that eyes are seen is consistent as far as possible, or be more or less the same in 5% (the eye educational inspector thinks), the fatigue that this dioptric imbalance causes concerning simple eye working condition certainly is clearly; Human eye work remains on primary position of eye, this moment, extraocular muscle was in the collaborative work state, and make and look thing and drop in human eye the place ahead level ± 26 degree scopes, simple eye-10 degree are to 26 degree, eyes are the eyeball horizontal direction optical axis oblique 13 degree outside each when seeing infinite distant place, the place ahead, make the upper limb of looking thing or image flush in the horizontal line of sight or the below of human eye simultaneously; Keep the certain visual angle of vertical direction, avoid external environment strong reflection dazzle not allow light direct beam eyes, the angle between the normal of the eye level sight line and the plane of delineation be preferably in 10 degree between 25 degree; The subject image of watching has enough clear, and brightness is between 300Lx to 500Lx etc.Only in this way could keep watching image for a long time, avoid visual fatigue.
Head-wearing display design principle:
Head-wearing display mirror holder zoom (object distance) and the design of change interpupillary distance
After design of Optical System is good,, promptly change certain object distance, can obtain the image of different size dimensions and different image-forming ranges, thereby improve the diopter of eyes by regulating the image source front and back position in order to make image imaging between 0.7m～2.5m.Simultaneously because people between east and west and older little difference, the human eye interpupillary distance alters a great deal, more than 16 years old or adult between east and west usually between 59mm to 66mm.When mirror holder designs, should make can changing of interpupillary distance design as far as possible, wear, thereby overcome the fatigue of eyes video fusion and the discomfort of aggregation degree to be fit to the different groups personnel.
The mirror body is watched angle selection between window plane and the human eye horizontal line
When glasses type displayer designs, common two mirror legs are worn angle and human eye horizontal line the angle of 0 degree to 5 degree, be the β angle, watch the upper limb of window preferably concordant with the horizontal line that the mirror body is worn, the picture imaging can be in the below of horizontal line of sight usually like this, desiring to make the optical axis and horizontal line angle is that-10 degree are to～25 degree, so form plane and horizontal line angle are that 65 degree are to 80 degree, usually the angle of mirror leg and form plane normal can be got-10 degree to-15 degree, can guarantee the aesthetic feeling of outward appearance simultaneously.
Wear the window's position center calculation
Allow the people see most complete, positive optical imagery, selecting correct visual angle district simultaneously, the vertical normal of image observation window should be overlapped with human eye's visual axis, be in human eye horizontal line of sight front lower place-10 degree to the zone between-25 degree, L: for interpupillary distance from being 15mm～25mm, X: for the form center axis point to watching horizontal distance to equal L*tan α, between the 3.5mm to 11.6mm, when specific design, be optimized.
Be the embodiment of several head-wearing displays below:
In order to be illustrated more clearly in structure of the present invention, now the legend in the accompanying drawing is done unified explanation:
1, mirror body;
11, mirror body fore shell;
111, fore shell column; 112, fore shell card base;
12, mirror body back cover;
121, form plane; 122, screw; 123, rotary seat;
124 rotary seat holes;
2, pcb board;
3, show module;
31, shows wafer; 32, optical lens
4, mirror holder;
41, mirror holder lower carriage;
42, optical lens picture frame;
421, pick up the ears; 422, the U-lag of picking up the ears;
43, dried word screw;
Dried word screw regulating tank;
44, interpupillary distance regulating tooth;
5, right mirror leg;
51, brightness, volume button;
52, keypad;
521, keypad fixed orifice;
53, right Jing Tuishigai;
531, right mirror leglet lid column;
54, right earphone screens; 55, suspender belt hole, the right crown; 56, right mirror leg fixed screw holes; 57, right mirror leg trunk;
6, left mirror leg;
61, mirror body interface board;
611, interface board screw;
62, left mirror leg decorative cover;
63, left mirror leg vertical columns;
64, left earphone screens; 65, suspender belt hole, the left crown; 66, left mirror leg trunk;
67, left earphone;
7, nose-bridge frame;
8, horizontal line of sight;
9, window plane normal;
10, upper window edge line;
101, crown suspender belt;
102, rotary gemel;
103, band after head is worn
104, the helmet.
See also Fig. 1 and Fig. 2, it is a kind of head-wearing glasses display, comprise mirror body 1 and right mirror leg 5 and left mirror leg 6, described mirror body 1 comprises mirror body fore shell 11, mirror body back cover 12, mirror body fore shell 11 and mirror body back cover 12 are by fore shell column 111 and fore shell card base 112 on the mirror body fore shell 11, fixedly connected with draw-in groove with the screw hole 122 on being positioned at mirror body back cover 12, constitute one can be tolerant mirror body 1; The demonstration module of in mirror body 1, forming 3 by mirror holder 4, pcb board 2, by shows wafer 31 and the optical lens 32 that is positioned at its front side, optical lens 32 and shows wafer 31 are contained in the optical lens picture frame 42 of mirror holder 4, and optical lens picture frame 42 is fixed on the glasses lower carriage 41; The input end of pcb board 2 and mirror body interface board 61 join, and mirror body interface board 61 joins with the outer signal source, and its output terminal joins with demonstration module 3; At mirror back cover 12 rear sides form plane 121 is arranged, between form plane 121, be furnished with nose-bridge frame 7.Left mirror leg 6 comprises mirror leg trunk 66, mirror body interface board 61, left mirror leg decorative cover 62; Interface board screw 611 on mirror body interface board 61, be used for left mirror leg mobile jib 66 on left mirror leg vertical columns 63 affixed, at left mirror leg mobile jib 66 tail ends left earphone screens 64 is arranged, be used for clamping left side earphone 67, left mirror leg decorative cover 62 is buckled in left mirror leg trunk 66 front ends, has suspender belt hole, the left crown 65 to be used to connect crown suspender belt 101 on left mirror leg trunk 66 and joins; Right mirror leg 5 comprises mirror leg trunk 57, button 51, keypad 52, right mirror leglet lid 53; Right mirror leglet lid column 531 is arranged on right mirror leglet lid 53, at keypad 52 keypad screw 521 is arranged, right mirror leglet lid column 531 and keypad screw 521 are fixed together the three by the screw hole on the right mirror leg trunk 57 56, at right mirror leg mobile jib 57 tail ends right earphone screens 54 is arranged, be used for clamping left side earphone; Suspender belt hole, the right crown 55 is arranged on left and right sides mirror leg trunk 57, be used for joining with crown suspender belt 101, the main effect of crown suspender belt 101 is the pressure that alleviates 1 couple of people's of mirror body the bridge of the nose.External power supply, video/audio signal are delivered to pcb board 2 through the interface board 61 on the mirror leg, drive shows wafer 31 display images and audio frequency power amplifier work, 32 pairs of wafer images of optical lens on the mirror holder 4 are amplified, thereby can see virtual big image, the mirror leg end that earphone is installed in both sides slightly, the keypad 51 on the mirror leg of right side is realized controls such as the volume, brightness, taboo sound to pcb board 2.
See also Fig. 3, Fig. 3 is a combination trailing flank structural representation embodiment illustrated in fig. 1; For the utility model, want to reach and wear for a long time and do not produce visual fatigue, preferably the angle α between the normal 9 of the image window 121 of horizontal line of sight 8 and mirror body back cover 12 to be designed at-10 degree to-25 degree; So-called normal 9 is meant the vertical straight line in plane of image window 121; In addition, the upper limb extended line 10 of the image window 121 of mirror body back cover 12 preferably is positioned at the below of horizontal line of sight 8, and this point sees also Fig. 4.
See also Fig. 5, Fig. 5 is the decomposing schematic representation of mirror holder 4 among Fig. 1; From figure as can be known, mirror holder 4 is provided with focusing structure, described focusing structure comprises dried font screw 43, dried word screw regulating tank 431 is arranged on dried font screw 43, two opposite outer at described optical lens picture frame 42 respectively has one to pick up the ears 421, at the U-lag 422 of picking up the ears on 421 of picking up the ears, the dried word screw regulating tank 431 and U-lag 422 clampings of picking up the ears, screw 411 wire connections of the screw rod of dried font screw 43 and mirror holder lower carriage 41 front sides, rotate dried font screw 43, be positioned at the optical lens 32 of optical lens picture frame 42 and the relative distance of shows wafer 31 with regard to scalable, and reach the purpose of focusing.
See also Fig. 6, Fig. 6 looks synoptic diagram for mirror holder trailing flank master among Fig. 1; From figure as can be known, be useful on the interpupillary distance regulating tooth 44 of regulating interpupillary distance on mirror holder lower carriage 41, the interpupillary distance that is used to regulate mirror holder to be fit to east or westerner's interpupillary distance requirement, perhaps is fit to individual interpupillary distance requirement.
See also Fig. 7, Fig. 7 is the perspective view of another kind of mirror body embodiment, compare with embodiment illustrated in fig. 1, its general structure is identical, and different is, rotation mode is adopted in being connected between mirror body 1 and the mirror leg, promptly comprise a Rotary Connection block 123, one rotation axis hole 124 is arranged on Rotary Connection block 123, be used for mirror on corresponding axis flexibly connect, thereby the normal 9 that makes image window 121 and the angle [alpha] between the horizontal line of sight 8 are between-10 degree are spent to-25.
See also Fig. 8, Fig. 8 is the perspective view of the another kind of embodiment head-type of the utility model display; Present embodiment is compared with embodiment illustrated in fig. 1, and its general structure is identical, and different is, is connected at mirror leg 5,6 tail ends and is with 103 after head is worn, and wears with convenient glasses; In addition, described mirror body 1 is in mirror leg below, connects by rotary gemel 102, spends between-25 degree-10 to reach the angle α that makes horizontal line of sight 8 and normal 9; And the upper limb extended line 10 that guarantees the image window 121 of mirror body back cover 12 preferably is positioned at the below of horizontal line of sight 8.
See also Fig. 9, wherein Fig. 9 A is the perspective view of the traditional helmet 104 formula displays; Fig. 9 B is the perspective view of helmet formula 104 displays after the utility model improves; Before the improvement, the form location drawing flushes in horizontal line of sight as the window center line; Image window normal 9 is 0 degree with horizontal line of sight 8 angle α; After the improvement, form moves down, and makes the image window upper limb be lower than horizontal line of sight 8, and the angle α of image window normal 9 and horizontal line of sight 8 is between-10 degree and-25 degree.
The checking result:
In order to verify the accuracy of above design, we have found a representational glasses type displayer and product of the present invention to do to wear test on market;
Tested object: responsive crowd more than 40 years old (lens elasticity weakens half, easily diopter fatigue), number: 15 people;
Existing product (model machine 1, down together): model EMG-01,23 everything elements, the glasses type displayer feature, clear picture, but the mirror leg is vertical with observation window, the optical axis and window normal angle 0 degree, left and right sides image window coboundary is higher than horizontal line, watches the window image frame infull when normally wearing, and need correct when wearing;
Product of the present invention (model machine 2, down with): mirror leg horizontal direction and observation window normal angle 15 degree, promptly horizontal line of sight is spent with window normal angle 15, left and right sides image window coboundary flushes in horizontal line, in be provided with interpupillary distance adjustment structure.
Playing image: scenery with hills and waters picture and light music;
Wearing mode: in order to do above-mentioned test, specially as requested respectively when wearing wear processing, adjust the mirror leg at head position, satisfy the corresponding number of degrees of downwards angle of visibility and make image display window vertical centre axis and people's an eye line is consistent, can blink in watching in case eyes are dry and astringent etc. thereby make.
Test comparison the results are shown in following table:
Table 1: 15 people are divided into 5 groups carry out the antifatigue test, the time, every group of every project limited 3 hours,
Conclusion: from above-mentioned test data we to be not difficult to find that model machine 1 (existing product) wearable device is worn visual fatigue in design position seriously undesired, the wearing mode test data of model machine 2 (product of the present invention) shows that visual fatigue improves significantly.
So, the quality of head-wearing display wearable device design is very big to the human eye influence, after adopting the correct design method, the visual fatigue phenomenon is improved, the head display system of wearing is imaged on 0.7m to 2, between the 5m, the balance that keeps the binocular dioptric, the eyes optical axis and glasses display watch window normal axis vertical direction angle to be designed to-10 degree between 25 degree, to watch the upper limb of window concordant or be lower than the horizontal line of sight of human eye simultaneously, and cooperating human eye interpupillary distance different mining with variable interpupillary distance mirror holder etc., this product that prevents that asthenopic integrated conduct method and Using such method from producing is credible and recommendation.
Claims (5)
1. head-wearing glasses display, comprise fore shell and back cover, described fore shell and back cover constitute a mirror body, be built-in with mirror holder, circuit board at the mirror body, in spectacle frame, be provided with image shows wafer, optical lens, circuit board output terminal and image shows wafer are joined, external input power supply of input end and audio frequency, vision signal; Described mirror body and glasses are worn mechanism and are joined; It is characterized in that: between the normal on the form plane of described mirror body and the angle α between the horizontal line of sight are-10 ° to-25 °, described mirror holder is made up of two parts, regulate interpupillary distance by sawtooth between two parts, opposite side at mirror holder respectively is provided with two dried font screw rods, the U-shaped of the lens carrier of described mirror holder picks up the ears to be stuck in the dried font screw rod regulating tank, and the power supply of described circuit board and the external interface of electric signal are positioned at a side of described mirror leg front end; The volume of described circuit board, brightness regulation button are positioned at the opposite side of described mirror leg front end, a rotating shaft is respectively established at described mirror body two ends, be provided with axis hole at described mirror leg front end, rotating shaft on the mirror body is enclosed within the described axis hole, in order to the normal on the form plane of scanner back and the angle α between the horizontal line of sight between the adjusting.
2. head-wearing glasses display according to claim 1 is characterized in that: the coboundary on described form plane is positioned under the horizontal line of sight.
3. head-wearing glasses display according to claim 1 is characterized in that: also be provided with crown suspender belt at described mirror midleg.
4. head-wearing glasses display according to claim 1 is characterized in that: it is the helmet that described glasses are worn mechanism.
5. head-wearing glasses display according to claim 1 is characterized in that: it is the headband ring that described glasses are worn mechanism, and described headband ring links to each other with the back cover middle part by connecting hinge.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610062184XA CN1908729B (en) | 2006-08-17 | 2006-08-17 | Method and device for preventing eye tiredness in wearing head-wearing glasses display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610062184XA CN1908729B (en) | 2006-08-17 | 2006-08-17 | Method and device for preventing eye tiredness in wearing head-wearing glasses display |
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| CN1908729A CN1908729A (en) | 2007-02-07 |
| CN1908729B true CN1908729B (en) | 2011-03-09 |
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| CN200610062184XA Expired - Fee Related CN1908729B (en) | 2006-08-17 | 2006-08-17 | Method and device for preventing eye tiredness in wearing head-wearing glasses display |
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| CN201853019U (en) * | 2010-09-17 | 2011-06-01 | 富利乐科技（深圳）有限公司 | Spectacles |
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| CN105182533B (en) * | 2015-08-28 | 2018-04-06 | 青岛歌尔声学科技有限公司 | Head-mounted display |
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| CN105467593B (en) * | 2016-01-12 | 2018-03-13 | 深圳多哚新技术有限责任公司 | A kind of PCB mounting brackets and VR glasses based on VR glasses |
| WO2018049619A1 (en) * | 2016-09-14 | 2018-03-22 | 深圳市柔宇科技有限公司 | Head-mounted display device |
| CN107820579A (en) * | 2016-09-14 | 2018-03-20 | 深圳市柔宇科技有限公司 | Wear-type electronic equipment and its display module |
| KR20190119892A (en) * | 2018-04-13 | 2019-10-23 | 삼성전자주식회사 | Electronic device capable of adjusting the distance between housings |
| JP2021071603A (en) * | 2019-10-31 | 2021-05-06 | セイコーエプソン株式会社 | Head mount display |
| CN113375912A (en) * | 2021-07-13 | 2021-09-10 | Oppo广东移动通信有限公司 | Electronic device |
| CN114356482B (en) * | 2021-12-30 | 2023-12-12 | 业成科技（成都）有限公司 | Method for interaction with human-computer interface by using line-of-sight drop point |
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