CN101349790B - Apparatus for watching display screen - Google Patents
Apparatus for watching display screen Download PDFInfo
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- CN101349790B CN101349790B CN200710137238.9A CN200710137238A CN101349790B CN 101349790 B CN101349790 B CN 101349790B CN 200710137238 A CN200710137238 A CN 200710137238A CN 101349790 B CN101349790 B CN 101349790B
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Abstract
The invention relates to a device for watching display screens, and relates to the display and computer desk technical fields. The invention includes a display screen device or a computer desk (or a special member including the display screen device), which is characterized in that a convex lens for watching the same display screen with two eyes and a support for keeping a stable distance between the positions of the convex lens and the display screen are arranged on the display screen device or computer desk (or the special member including the display screen device), and the distance between the positions of the convex lens and the display screen is u which is some value more than f/(1+f) and less than 1.1. The device enables an observer to change from watching a nearby display screen to a distant display screen virtual image, and relaxes and adjusts the eyes with comfort and hardiness. The device is beneficial for reducing the eye fatigue caused by long-time watching the nearby display screen, and beneficial for watching for a long time as well as for watching by a presbyopia or a farsightedness.
Description
Technical field
The present invention relates to the technical fields such as display, convex lens and computer desk.
Background technology
When eyes were seen at a distance, the adjusting of eyes and set were in relaxation state and are not easy fatigue, when watching computer for a long time, display screen from eyes close to, the adjusting of eyes is in tension with set, eyes are fatigue easily.Watch the magnifier (for example ZL patent No. 200420078331.9 " display magnifier protection screen ") of display screen in the prior art; to settle convex lens that play the magnifier effect in the display screen front; its subjective purpose is to increase ox-eyed visual angle rather than put image far away; because of the size at display screen and convex lens interval little on the impact of eyes visual angle size; general magnifier and display screen interval are less, so the virtual image of the display screen of seeing by magnifier is nearer.The shortcoming of prior art is to only require to increase ox-eyed visual angle, do not require the adjusting of loosening eyes, and eyes are tired easily." watching the device (namely placing the dedicated platform of display device) of display screen " of the prior art such as computer desk or the support of placing display device (e-book, mp4, display etc.) can only be placed display device and can not loosen the adjusting of eyes, and the long-time direct viewing of eyes display screen nearby is tired easily.
Summary of the invention
The present invention watches the purpose of the device of display screen to be: by convex lens the virtual image of display screen is put far, improve the observing effect of eyes, allow the observer feel comfortable and endure hardships.
Difference with the prior art of the present invention is " fundamental purpose of convex lens magnifier and effect are the amplification images, increase ox-eyed visual angle in the prior art; make eyes see details clearly ", " fundamental purpose of convex lens and effect are the adjustings of putting image far away, loosening eyes among the present invention, make that eyes are comfortable endures hardships ".
In technical scheme of the present invention, perhaps comprise display device; Perhaps comprise the special-purpose tables (display screen that will observe is on the display device that does not belong to this device) that lay display device; Perhaps comprise the special-purpose member (display screen that will observe is on the display device that does not belong to this device) that connects or display device is installed.Its specified features is: have eyes to watch the convex lens that same display screen uses and keep the support of stable distance between convex lens and the screen position, distance between the position of convex lens and display screen is u, u is greater than f/ (1+f) and less than a certain numerical value in the 1.1f scope, comprise u=f or u=2f/ (f+2) or u=3f/ (f+3) or u=4f/ (f+4) or u=5f/ (f+5) etc. numerical value in this scope, wherein f is the focal length of convex lens, and the unit of f and u is rice.
The present invention also can be one of following technical proposals.
First technical scheme is: a kind of device of watching display screen, display device is arranged, there are eyes to watch the convex lens that same display screen uses and keep the support of stable distance between convex lens and the display screen, be characterised in that the distance that support can be controlled between convex lens and the display screen is u, u is greater than f/ (1+f) and less than a certain numerical value in the 1.1f scope, comprise u=f in this scope, or u=2f/ (f+2), or u=3f/ (f+3), or u=4f/ (f+4), or u=5f/ (f+5) etc. numerical value (that is to say that u can equal the arbitrary numerical value in " 1.1f＞u＞f/ (1+f) " scope, for example, u=f, or u=2f/ (f+2), or u=3f/ (f+3), or u=4f/ (f+4), or u=5f/ (f+5), u can also equal other numerical value in " 1.1f＞u＞f/ (1+f) " scope except these several numerical value of giving an example), wherein f is the focal length of convex lens, and the unit of f and u is rice.The base that supports this device is the cap (for example Figure 11 and embodiment 10) that can be worn on observer's head.
Second technical scheme is: a kind of device of watching display screen, (not comprising the display screen that will watch with convex lens in device) has the special-purpose member that connects or display device an is installed (spring clamp for example, hanging hook component, socket component, paste connecting elements, leather sheath, framework, lay the special-purpose members such as special-purpose member of display device), be characterised in that the convex lens that eyes watch same display screen to use, support lenticular is arranged and can keep the support of the stable distance between the empty position of convex lens and display device, the distance that support can be controlled between convex lens and the display screen is u, u is greater than f/ (1+f) and less than a certain numerical value in the 1.1f scope, comprise u=f in this scope, or u=2f/ (f+2), or u=3f/ (f+3), or u=4f/ (f+4), or u=5f/ (f+5) etc. numerical value, wherein f is the focal length of convex lens, and the unit of f and u is rice.The base that supports this device is the cap (for example Figure 18 and embodiment 17) that can be worn on observer's head.
The three technology scheme is: a kind of device of watching display screen, the special-purpose tables that lay display device (computer desks for example, observation platform, monitor station etc., the display screen of observing is on the display device that does not belong to this device), feature is convex lens that have eyes to watch display screen to use on the tables, support lenticular is arranged and can keep convex lens and lay the support of the stable distance between the empty position of display device, the distance that support can be controlled between convex lens and the display screen is u, u is greater than f/ (1+f) and less than a certain numerical value in the 1.1f scope, comprise u=f in this scope, or u=2f/ (f+2), or u=3f/ (f+3), or u=4f/ (f+4), or u=5f/ (f+5) etc. numerical value, wherein f is the focal length of convex lens, the unit of f and u is rice.
The 4th technical scheme is: a kind of device of watching display screen, display device is arranged, there are eyes to watch the convex lens that same display screen uses and keep the support of stable distance between convex lens and the display screen, be characterised in that the distance that support can be controlled between convex lens and the display screen is u, u is greater than f/ (1+f) and less than a certain numerical value in the 1.1f scope, comprise u=f in this scope, or u=2f/ (f+2), or u=3f/ (f+3), or u=4f/ (f+4), or u=5f/ (f+5) etc. numerical value (that is to say that u can equal the arbitrary numerical value in " 1.1f＞u＞f/ (1+f) " scope, for example, u=f, or u=2f/ (f+2), or u=3f/ (f+3), or u=4f/ (f+4), or u=5f/ (f+5), u can also equal other numerical value in " 1.1f＞u＞f/ (1+f) " scope except these several numerical value of giving an example), wherein f is the focal length of convex lens, and the unit of f and u is rice.And the bracing frame of support " convex lens and comprise the display device that keeps the support of stable distance between convex lens and the display screen " is arranged, adjust this bracing frame and can make convex lens and display screen together move to the position (for example " convex lens and display screen " together being moved to the observer at the moment) that the observer needs.This bracing frame can be various forms of, but for example be the parallelogram lindage cribbing that moves of pin telescopic tube cribbing or flexible bellows-type support or keeping parallelism or scissor angle adjustable frame or the support as various Table lamp stands or microphone holder, etc.The base of this bracing frame can be that coupling member (for example can be connected to wall with this device, table, bed, union piece on the objects such as seat, clip for example, nail-plate, plug connector etc.), perhaps the base of this bracing frame is cap or the belt of wear-type, perhaps the base of this bracing frame is seat (sofa for example, chair etc.), perhaps the base of this bracing frame is tables' (computer desks for example, desk, worktable etc.), perhaps the base of this bracing frame is bed, perhaps the base of this bracing frame is desk-top base or floor pedestal etc., and this bracing frame is adjustable support.
The 5th technical scheme is: a kind of device of watching display screen, (not comprising the display screen that will watch with convex lens in device) has the special-purpose member that connects or display device an is installed (spring clamp for example, hanging hook component, socket component, paste connecting elements, leather sheath, framework, lay the special-purpose members such as special-purpose member of display device), be characterised in that the convex lens that eyes watch same display screen to use, support lenticular is arranged and can keep the support of the stable distance between the empty position of convex lens and display device, the distance that support can be controlled between convex lens and the display screen is u, u is greater than f/ (1+f) and less than a certain numerical value in the 1.1f scope, comprise u=f in this scope, or u=2f/ (f+2), or u=3f/ (f+3), or u=4f/ (f+4), or u=5f/ (f+5) etc. numerical value, wherein f is the focal length of convex lens, and the unit of f and u is rice.And the bracing frame of support " support of stable distance between the special-purpose member of convex lens, connection or installation display device and the empty position of maintenance convex lens and display device " is arranged, adjust this bracing frame and can make the special-purpose member of convex lens and installation display device together move to the position (for example " convex lens and display screen " together being moved to the observer at the moment) that the observer needs.Because display device should be installed on the special-purpose member that display device is installed, can make " convex lens and display screen " together to move to the position that the observer needs so adjust this bracing frame.This bracing frame equally can be various forms of adjustable trestles with above-mentioned bracing frame.
Illustrate: in f＞u＞f/ (f+1) scope, display screen is virtual images by the imaging of convex lens, and the virtual image of display screen and the distance between the convex lens are greater than 1 meter.The virtual image of display screen and the distance between the convex lens are v rice, the optics formula is " v=uf/ (f-u) ", i.e. " u=vf/ (v+f) ", so v=2 rice when u=2f/ (f+2), v=3 rice when u=3f/ (f+3), v=4 rice when u=4f/ (f+4), v=5 rice when u=5f/ (f+5); Can think that when u=f the virtual image of display screen is in the infinite distance; Convex lens when 1.1f＞u＞f are beneficial to farsightedness and watch." keeping stable distance between convex lens and the display screen " in the technical scheme, refer to that when watching distance remains unchanged between the convex lens and display screen.The support of distance can be the fixed bracket (such as being rod-type support or box support etc.) that can not change distance between convex lens and the display screen between control convex lens and the display screen, also can be that (for example support is telescope cribbing or flexible bellows-type support or the support as various adjustable Table lamp stands for the adjustable trestle that can change convex lens and distance between the display screen, or telescopic cover cassette rack, etc. various forms of supports).Convex lens can be biconvex spherical lens or planoconvex spherical lens or the spherical convex lens of convex-concave, perhaps, convex lens can be disappear the distortion aspheric convex lens or convex lens be that Fresnel type convex lens or convex lens are convex lens of achromatic composite convex lens etc. form.Display device can be computer monitor, or mobile phone, or game machine, or mobile television, or mp4, or liquid crystal display, or book reading machine, or mobile DVD player etc. has the device of display screen.
Above-mentioned each scheme can also have following additional technical feature: 1, more than watch the size of the focal length of convex lens in the device of display screen between 0.2 meter to 10 meters, for example, focal length equals 1/4.5 meter or 1/4 meter or 1/3.5 or 1/3 meter or 1/2.5 or 1/2 meter or 1/1.5 meter or 1 meter, and focal length can also be other numerical value except these several numerical value.2, more than watching the convex lens in the device of display screen is the aspheric convex lens that can eliminate distortion or weaken distortion.3, more than watch convex lens in the device of display screen be have on optical filtering (such as absorption optical filtering or reflective optical filtering etc.) or the convex lens plated film (such as antireflecting film, reduce the infringement eye-ray plated film, film or anti-soil film etc. resistance to wear).Sight glass is that the plated film on optical filtering or the sight glass can reduce the observing effect that harm ray is conducive to improve eyes, allows the observer feel comfortable and endures hardships.4, but more than watching the convex lens in the device of display screen is convex lens that color difference eliminating maybe can weaken aberration, connects airtight the convex lens that the color difference eliminating that consists of maybe can weaken aberration but the concavees lens that this convex lens are the convex lens made by the material of a certain refractive index and another different refractivity material to be made are overlapping.5, more than watching the support lenticular in the device of display screen and keeping the support of stable distance between convex lens and the display screen is adjustable trestle, this support not only can keep distance between convex lens and the display screen stable but also can change the size of distance between convex lens and the display screen when watching, adjusting pole can change the size of u and make u be stabilized in a certain value, u can be adjusted to a certain value in 1.1f＞u＞f/ (f+1) scope at least, also can be with being adjusted to outside 1.1f＞u＞f/ (f+1) scope apart from u between convex lens and the display screen but do not get rid of adjusting pole.
Beneficial effect:
Difference with the prior art of the present invention: (1) purpose difference: " fundamental purpose of convex lens magnifier and effect are the amplification images, increase ox-eyed visual angle in the prior art; make eyes see details clearly ", " fundamental purpose of convex lens and effect are the adjustings of putting image far away, loosening eyes among the present invention, make that eyes are comfortable endures hardships ".(2) Expected Results difference: the apparent angular magnification of prior art magnifier is larger, so the visual field coarse resolution of display screen picture less, that see low (also being exaggerated because form the minimum " color lump " of picture), the area of magnifier generally could amplify picture greater than the area of display screen.The prior art image distance is shorter, when watching the adjusting of eyes all in tension with set, eyes are tired easily, closely watch for a long time causing easily myopia.It is to put image far away that convex lens among the present invention not only can have amplification effect but also main effect.The new performance that convex lens have among the present invention and purposes are to loosen synchronously adjusting and the set of eyes, make that eyes are comfortable endures hardships; Watch the display screen virtual image a long way off to be conducive to prevent the teenager to see for a long time the myopia that display screen nearby causes by convex lens; In use often watch on the far point or than the far point virtual image slightly at a distance and be beneficial to the exercise eyes and treat pseudo-myopia.So the present invention not only can utilize the amplification of convex lens to increase ox-eyed visual angle because image eyes far away can be watched near convex lens, can also utilize " display screen and convex lens " are increased the visual angle near the method for eyes together.Large and areas convex lens in the visual field can also be less than display screen when watching near convex lens for eyes.(3) structure difference: the close together of convex lens and display screen in the prior art, convex lens and display screen is distant among the present invention.Visual angle enlargement factor that it is generally acknowledged magnifier equals " focal length of 0.25 meter/magnifier ", distance between display screen and the magnifier is very little and very large on the volume impact on the impact of visual angle enlargement factor, distance between display screen and the magnifier more large volume is larger, so not only inconvenience but also not attractive in appearance is the close together of magnifier and display screen.(as shown in Figure 1: the convex lens photocentre is at the o point, F is focus, eyes are watched at the Y point, display screen and convex lens be bo or ao apart from u, bo＞ao, when display screen during at a point its virtual image AC of (ac) closely at the A point, when display screen during at the b point its virtual image BD of (bd) far away from the B point, so because of DCF point-blank " visual angle CYA " less than " visual angle DYB ".Find out in Fig. 1: eyes are larger the closer to the convex lens visual angle, when eyes at the focal length of convex lens during with interior observation, the visual angle of the less then convex lens of u larger (visual angle CYA is greater than visual angle CEA), image are nearer; The visual angle of the larger then convex lens of u is less, image is larger; Though eyes at the focal length of convex lens with interior or when observing in addition " size of u is little on the impact of visual angle size ".So Fig. 1 explanation: the u of magnifier does not need very large, generally keeps the distance of the virtual image and magnifier just passable about u=0.25f/ (f+0.25) in the distance that namely keeps display screen and magnifier about 25cm).The present invention for reach unlike the prior art specific purposes or special-effect structurally the present invention require the spacing u of convex lens and display screen＞f/ (f+1), namely require image distance greater than 1 meter.Image distance infinite distance when u=f is beneficial to farsightedness and watches when 1.1f＞u＞f, image distance equals v rice when u=vf/ (f+v).
The present invention has following beneficial effect:
(1) eyes see that at a distance object ratio sees easily nearby, and eyes are in lax resting state when seeing object on " far point ", it is generally acknowledged to be in fully lax resting state when facing soon the infinite distance.The present invention will see by convex lens nearby display screen becomes and see the virtual image (seeing Fig. 3) of display screen at a distance, can loosen synchronously the adjusting of eyes and set and make that eyes are comfortable endures hardships.(2) the present invention sees that by convex lens the display screen virtual image a long way off is conducive to prevent the teenager to see for a long time the myopia that display screen nearby causes.(3) the present invention often sees the virtual image on the photopic vision far point or is beneficial to than the far point virtual image slightly at a distance by convex lens and tempers the eye therapy pseudo-myopia.(4) virtual image of display screen is different and different with the distance (u) of display screen and convex lens from the size of convex lens distances (v).The variation that u is very little during the convergence focus will cause the variation that v is very large, and the variation of v can cause the variation of binocular integration and adjusting, and set makes eye fatigue easily with the continuous variation of adjusting.So it is constant that the present invention keeps the distance (u) of display screen and convex lens to stablize by support, can reduce the fatigue of eyes.(5) each observer's far point is different, and needed image distance is different.The present invention uses the adjustable trestle that can change distance between sight glass and the display screen can satisfy each observer, and the virtual image of display screen is on the far point of different observers, makes that eyes are comfortable endures hardships.(6) among the present invention " display screen and convex lens " together near the observer, the method that utilization reduces the distance increases the visual angle, can not only improve the observing effect of eyes, allowing the observer feel comfortable endures hardships, can also reduce the area of display screen or convex lens, be conducive to save cost, be conducive to avoid making the difficulty of large tracts of land convex lens.(7) utilization of the present invention " bracing frame " with " display screen and convex lens " move to together be conducive in face of the observer observer select more comfortable posture watch, more convenient.Perhaps, the position of coming controlled observation person to observe by the position of " bracing frame " control " display screen and convex lens " can be corrected the incorrect observation posture of observer or is conducive to the observation posture that keeps correct.(8) the present invention selects u＞f/ (f+1) virtual image can be remained at a distance or the virtual image is remained on observer's the far point, makes that eyes are comfortable endures hardships, and is conducive to prevent the myopia that closely causes because seeing for a long time.The present invention also is conducive to presbyopia and farsightedness is watched.(9) disappear the distortion aspheric convex lens can make the virtual image of display screen smooth, can improve observing effect.(10) the color difference eliminating convex lens that maybe can weaken aberration can improve observing effect.(11) use absorption optical filtering, reflective optical filtering or on convex lens coated with antireflection film etc. all be conducive to protect eyes and improve observing effect.(12) the larger then focal length of convex lens of the multiple of magnifier less (general magnifier visual angle enlargement factor is greater than 2 times).Calculate " apparent angular magnification=0.25 meter/focal length " according to the convex lens magnifier, if focal length of convex lens during greater than 0.2 meter apparent angular magnification less than 1.25 times.The advantage that focal length of convex lens is large is that enlargement factor is little, the visual field is large, and display screen picture is careful, radius-of-curvature is large, aberration is little.The area of the large then convex lens of focal length is large, and wider convex lens are conducive to watch simultaneously with eyes, and the visual field of convex lens is conducive to greatly watch larger display screen, and wider convex lens also are conducive to eyes to be watched near convex lens, and viewing distance closely then visual angle is large.(13) because the area limited (the less then convex lens of focal length of convex lens area is less) of convex lens, thus with convex lens put image far away and with convex lens near the observer, it is also advantageous in that can the less convex lens of usable floor area.The convex lens area was less than display area but picture that see is larger than display screen when for example convex lens were before eyes.(14) be installed in bed, sofa etc. base on by bracing frame sight glass and display screen and on demand mobile sight glass and display screen, be conducive to reach and allow the observer feel comfortable purpose.Can change the observation place and also be beneficial to and change to observe the posture prevention because watching the strain that causes with a kind of posture for a long time, such as cervical spondylopathy etc.
Description of drawings
Fig. 1 is the analysis chart of convex lens apparent angular magnification and screen position relation.
Fig. 2 is a kind of synoptic diagram of watching the device of display screen.
Fig. 3 is index path and the binocular integration synoptic diagram regulated of eyes when watching display screen by convex lens.
Fig. 4 is a kind of synoptic diagram of watching the device of display screen.
Fig. 5 is a kind of synoptic diagram of watching the device of display screen.
Fig. 6 is a kind of synoptic diagram of watching the device of display screen.
Fig. 7 is a kind of synoptic diagram of watching the device of display screen.
Fig. 8 is a kind of synoptic diagram of watching the device of display screen.
Fig. 9 is a kind of synoptic diagram of watching the device of display screen.
Figure 10 is a kind of synoptic diagram of watching the device of display screen.
Figure 11 is a kind of synoptic diagram of watching the device of display screen.
Figure 12 is a kind of synoptic diagram of watching the device of display screen.
Figure 13 is a kind of synoptic diagram of watching the device of display screen.
Figure 14 is a kind of synoptic diagram of watching the device of display screen.
Figure 15 is a kind of synoptic diagram of watching the device of display screen.
Figure 16 is a kind of synoptic diagram of watching the device of display screen.
Figure 17 is a kind of synoptic diagram of watching the device of display screen.
Figure 18 is a kind of synoptic diagram of watching the device of display screen.
Figure 19 is a kind of synoptic diagram of watching the device of display screen.
In the accompanying drawing 1 is the convex lens of watching display screen, the 2nd, the support of support lenticular, the 3rd, display screen, v are the virtual image of display screen and the distance of convex lens, the distance of u display screen and convex lens, the 4th, the special-purpose member of connection or installation display device, the 5th, lay the special-purpose tables of display device, the 6th, support the bracing frame of " convex lens and display device ", the 7th, locating element, the 8th, support the base of the bracing frame of " convex lens and display device ", the 9th, lay the empty position of display device.Ac in the accompanying drawing 1 be the position at the display screen at a place, AC be display screen ac in the virtual image at A place, bd is that the position is at the display screen at b place, BD be display screen bd in the virtual image at B place, O is the photocentre of convex lens, Y is the observation point of eyes, E is the another one observation point, and F is the focus of convex lens.
Embodiment
Embodiment 1: a kind of device of display screen and prior art " display magnifier protection screen " (patent No. is ZL 200420078331.9) of watching compares; be characterised in that can adjust in the interval of 1.1f＞u＞f/ (f+1) apart from u between display screen in " device of watching display screen " and the magnifier; wherein u is the distance between magnifier and the display screen; f is the focal length of magnifier, and the unit of f and u is rice.The display screen virtual image of seeing by magnifier when u=fv/ (f+v) is at v rice, v=fu/ (f-u).During such as u=f/ (f+1), the display screen virtual image and the distance between the magnifier seen by magnifier equal 1 meter, when u=3f/ (f+3), the display screen virtual image and the distance between the magnifier seen by magnifier equal 3 meters, when u=5f/ (f+5), the display screen virtual image and the distance between the magnifier seen by magnifier equal 5 meters.When u=f, the display screen virtual image of seeing by magnifier at infinity.The display screen virtual image of seeing by magnifier when 1.1f＞u＞f is beneficial to farsightedness and observes.During use the observer can according to the far point of own eyes adjust between display screen and the magnifier apart from u.
Embodiment 2: as shown in Figure 2 a kind of watches the lenticular device of display screen to be by the support 2 of convex lens 1, fixed sturcture and to have the computer monitor of LCDs 3 to consist of.Convex lens are that a focal length is that (plane of planoconvex convex lens can outwardly also can be inwardly for 50 centimetres rectangle convex lens.The plane can be reduced during towards the observer reflective, the plane during towards display screen the convex lens surface each point even to the identical image planes of distance of display screen), between convex lens 1 and the display screen 3 is 49 centimetres apart from u.Eyes see that by convex lens the virtual image of display screen is in about 24.5 meters distant places (as shown in Figure 3, u=0.49 rice, v=24.5 rice).
Embodiment 3: the device of watching display screen as shown in Figure 4,1 is aspheric convex lens that weaken distortion, convex lens are connected on the flexible bellows-type support 2 by picture frame, its length approximates the focal distance f of convex lens, the 4th, the special-purpose member spring clamp of connection display device, during use spring clamp 4 is clipped in the coboundary of liquid crystal display, eyes are watched by convex lens 1.
Embodiment 4: as shown in Figure 5 be a kind of device of watching display screen, the 1st, convex lens of using when eyes are watched display screen, the 4th, the special-purpose member of connection display device is plugged on the liquid crystal display 4 during use, by the position of support 2 control convex lens.Support 2 not only can keep distance between convex lens and the display screen stable but also can change between convex lens and the display screen size apart from u when watching, adjusting pole can change the size of u and make u be stabilized in a certain value, u can be adjusted to a certain value in 1.1f＞u＞f/ (f+1) scope at least, also can be with being adjusted to outside 1.1f＞u＞f/ (f+1) scope apart from u between convex lens and the display screen but do not get rid of adjusting pole.The distance of convex lens and display screen can be remained on the ultimate range that eyes can be seen clearly during use.
Embodiment 5, a kind of device of watching display screen as shown in Figure 6,1 is convex lens, (convex lens also can be Fresnel type lens), the 4th, the special-purpose member of connection or installation display device (for example being the box of placing mp4), the 2nd, the telescope cribbing of distance between the control convex lens mirror 1 and 4.U is the distance of putting the empty position of display screen in the convex lens 1 to 4, and u can be transferred to the length of focal length of convex lens.
Embodiment 7: a kind of device of watching display screen, as shown in Figure 8: the 5th, a kind of special-purpose tables that lay display device are computer desk, do not have display screen at computer desk but the empty position 9 of laying computer monitor (display screen that will watch is not belong on other the computer monitor of this device) is arranged, have and be exclusively used in the convex lens 1 of observing display screen in the computer monitor, convex lens 1 are the common spherical convex lens that use of eyes, the focal length of convex lens is 1 meter (focal length of convex lens also can be 0.33 meter or 0.5 meter etc.), and convex lens can loosen binocular integration and loosen eyes and regulate.The 2nd, support lenticular and can adjust the support (support of convex lens can be as the support of various desk lamps or to the same adjustable trestle of the support of microphone) of convex lens position.Adjusting pole 2 can remain on the distance between convex lens and the display screen (being 1.1f＞u＞f/ (f+1)) between 1.1 meters to 0.5 meter, the effect of watching computer monitor is to be to put the virtual image far away by the display screen virtual image that convex lens are seen, the virtual image is v=fu/ (f-u) to the distance of convex lens, and the display screen virtual image at infinity when the distance between convex lens and the display screen is 1 meter.
Embodiment 8: Fig. 9 is the synoptic diagram of " a kind of device of watching display screen ", it is this that to watch the device of display screen be a kind of graphoscope, display screen 3 is arranged on it, the convex lens 1 that a focal distance f that has eyes to watch display screen to use equals 1/3 meter, the support 2 that support lenticular 1 is arranged, support 2 is to be made of four telescopes, support 2 not only can keep stablizing apart from u between convex lens 1 and the display screen 3 when watching, and can also change the size of distance between convex lens and the display screen by stretching of support 2.The display screen virtual image that eyes are seen by convex lens when u=0.33 rice at infinity, about 5 meters far away of the display screen virtual image that eyes are seen by convex lens when u=0.31 rice, about 1 meter far away of the display screen virtual image that eyes are seen by convex lens when u=0.25 rice, the display screen virtual image that namely eyes are seen by convex lens during u=vf/ (f+v) rice is at v rice.Also have the bracing frame 6 of support lenticular and display device " watching the device of display screen ", adjust this bracing frame 6 and can make convex lens 1 and display screen 3 together move to the position that the observer needs.
Embodiment 9: the device of watching display screen as shown in figure 10 is a handheld game machine, 1 is convex lens, the 3rd, the display screen on the handheld game machine, the 2nd, the telescope cribbing of distance between control convex lens 1 and the display screen 3, convex lens 1 are convex lens (the f=0.2 rice that a focal length is f, or 0.25 meter, or 0.33 meter, or 0.4 meter, or 0.5 meter etc.), distance between convex lens 1 and the game machine display screen 3 can regulate and be stabilized in greater than in the scope of f/ (f+1) less than 1.1f, i.e. the display screen virtual image seen by convex lens of eyes to the distance between the convex lens greater than 1 meter.
Embodiment 10: Figure 11 is a kind of structural representation of watching the device of display screen, watch on the device of display screen display screen 3 is arranged, convex lens 1 that have eyes to watch display screen to share, the support 2 that support lenticular and display are arranged, support 2 can be controlled the distance between convex lens and the display screen and can keep stable distance between convex lens and the display screen when watching, the focal length of convex lens is that (perhaps the focal distance f of convex lens also can be 1/3 meter to 20cm, or 1/4 meter etc.), can namely in the scope of 1.1f＞u＞f/ (f+1), adjust in adjustment between the 17cm to 22cm apart from u between convex lens and the display screen, support 2 is the rod-type supports with sliding sleeve and 7, the 7th, display is fixed on the locating element (screw) of a certain position on the support 2, unscrew after 7 can mobile display change between convex lens and the display screen apart from u, tighten after 7 the fixedly distance between the convex lens and display screen.The 8th, can be worn over the cap on observer's head.Also can have or connecting sound equipment device and personal computer on the cap.
Embodiment 11: the device of watching display screen as shown in figure 12,1 is convex lens, the 3rd, the display screen on the computer monitor, the 2nd, the support of distance between control convex lens 1 and the display screen 3, u is the distance between convex lens 1 and the display screen 3, can adjust u and keep u is a certain value in 1.1f＞u＞f/ (f+1) scope, the 6th, the bracing frame of support computer monitor and convex lens, adjusting bracing frame 6 can make convex lens and display screen together move to the position that the observer needs, adjust bracing frame 6 can also change viewing angle namely change convex lens and display screen towards, the 8th, host computer and keyboard.
Embodiment 12: comprise display in as shown in figure 13 a kind of " watching the device of display screen ", liquid crystal flat-faced screen 3 is arranged on the display, also comprise the bracing frame 6 of support 2, support displays and the convex lens of distance between convex lens 1, control display screen 3 and the convex lens 1 in " watching the device of display screen ".The base of bracing frame 6 is seats 8 (sofa) of observer.Support 2 and bracing frame 6 all are the telescopic tube cribbings that can regulate, and on the telescopic tube cribbing 7 are align member (screws).The align member of unscrewing on the support can change the spacing of glasses and display screen or adjust the observation place, convex lens and display screen together can be moved to the observer that is sitting on the sofa at the moment by adjusting pole 6, the screwed in place member can keep glasses and display screen spacing u stablely namely keeps stablizing apart from v of glasses and the virtual image when watching.The virtual image of the display screen that (f=33.3cm) sees by convex lens when u=f at infinity.
Embodiment 13: Figure 14 is a kind of synoptic diagram of watching the device of display screen, and 1 is convex lens, and its focal length equals 40 centimetres.At convex lens plated film is arranged.The 2nd, the chamber type support, the distance between the flexible display screen 3 that can change on convex lens 1 and the display of casing, and can make distance adjustment to 40 centimetre between convex lens 1 and the display screen 3.The 6th, the bracing frame of support " convex lens and display ".The base of bracing frame 6 is the connecting elements that this device can be connected on wall or table or bed or certain object, adjusts the position that this bracing frame 6 can make convex lens and display screen together move to the observer to need and watches.
Embodiment 14: Figure 15 is a kind of synoptic diagram of watching the device of display screen, 1 is an achromatic convex lens, connects airtight the convex lens that the color difference eliminating that consists of maybe can weaken aberration but its concave lens that to be the convex lens made by a kind of refraction materials and another kind of different refractivity material make is overlapping.Its focal length equals 25 centimetres.The 2nd, it between convex lens 1 and the display screen 3 is 25 centimetres or 20 centimetres apart from u that chamber type support, casing flexible can change also can keep apart from u between convex lens 1 and the display screen 3 (or display).The 6th, the bracing frame of support " convex lens and display ".The base of bracing frame 6 is the connecting elements that this device can be connected on wall or table or bed or certain object such as computer case or keyboard, adjusts the position that this bracing frame 6 can make convex lens and display screen together move to the observer to need and watches.
Embodiment 15: Figure 16 is the synoptic diagram of " a kind of device of watching display screen ", on this device of watching display screen display screen 3 is arranged, convex lens 1 that have eyes to share, the support 2 that support lenticular 1 is arranged, also have the bracing frame 6 of support lenticular and display device, the base 8 of bracing frame 6 is desks.The focal length of convex lens 1 is 0.4 meter, can control distance between convex lens 1 and the display screen 3 greater than 0.29 meter and less than 0.44 meter by support 2.
Embodiment 16: Figure 17 is the synoptic diagram of " a kind of device of watching display screen ", on this device of watching display screen display screen 3 is arranged, convex lens 1 that have eyes to share, the support 2 that connects convex lens 1 and display is arranged, display screen 3 is arranged on the display, can control distance between convex lens 1 and the display screen 3 by support 2.Also have the bracing frame 6 of support lenticular 1 and display, the base 8 of bracing frame 6 is beds.Distance between convex lens 1 and the display screen 3 is greater than f/ (1+f) and less than 1.1f, wherein the size of the focal distance f of convex lens is between 0.2 meter to 10 meters, and the focal length of convex lens can be a certain numerical value such as 1/4.5 meter or 1/4 meter or 1/3.5 or 1/3 meter or 1/2.5 or 1/2 meter or 1/1.5 meter or 1 meter.Bracing frame 6 and support 2 all are adjustable trestles.
Embodiment 17: as shown in figure 18 be a kind of device of watching display screen, the 1st, the convex lens that eyes watch display screen to share, these convex lens are convex lens of an aspheric distortion that disappears, the focal distance f of convex lens is 30cm.The 2nd, the support of distance between control convex lens and the display screen, support 2 is scalable and fixing bushing type supports, the 4th, the special-purpose member of installation display device, (mp4 etc.) that other can not belonged to this device with the spring clamp on this special-purpose member have the device of display screen to place and be fixed therein, and between the position of convex lens and placement display screen is about 29cm apart from u.The 8th, can be worn over the cap on observer's head.
Embodiment 18: Figure 19 is the structural representation of " a kind of device of watching display screen ", in this device of watching display screen, do not comprise display screen but the special-purpose member 4 that display device is installed is arranged, at the special-purpose member 4 that display device is installed the empty position of placing display device and the spring clamp that clamps display device are arranged.Have for eyes and watch convex lens 1 and the support lenticular of display screen and can keep the support 2 of stable distance between convex lens and the display screen, support 2 is adjustable jack columns, by support 2 can control between convex lens and the display screen apart from u greater than f/ (1+f) and in less than the 1.1f scope, comprise u=f or u=2f/ (f+2) or u=3f/ (f+3) or u=4f/ (f+4) or u=5f/ (f+5) etc. numerical value in this scope, wherein f is the focal length of convex lens, and the unit of f and u is rice.Also have the bracing frame 6 that supports " special-purpose member 4 of convex lens 1 and installation display device ", adjust this bracing frame 6 and can make convex lens 1 and the special-purpose member 4 that display device is installed together move to the position that the observer needs.This display device that does not comprise in the device of display screen of watching can be mp4 or e-book or game machine etc.
Claims (10)
1. device of watching display screen, comprise display screen, eyes are watched the convex lens that display screen uses and are kept the support of stable distance between convex lens and the display screen, convex lens are magnifieres, it is characterized in that the distance that support can be controlled between convex lens and the display screen is u, u is greater than f ÷ (1+f) and less than a certain numerical value in 1.1 * f scope, and wherein f is the focal length numerical value of convex lens, and the unit of f and u is rice.
2. the device of watching display screen according to claim 1 is characterized in that focal length of convex lens is 0.2 to 1/4.5 meter or 1/4.5 to 1/4 meter or 1/4 to 1/3.5 meter or 1/3.5 to 1/3 meter or 1/3 to 1/2.5 meter or 1/2.5 to 1/2 meter or 1/2 to 1/1.5 meter or 1/1.5 meter to 1 meter or 1 meter to 10 meters.
3. the device of watching display screen according to claim 1, it is characterized in that support the is arranged bracing frame of " the described device of claim 1 ", this bracing frame is adjustable bracing frame, adjusts this bracing frame and can make " the described device of claim 1 " to move to the observer at the moment.
4. the device of watching display screen according to claim 1 is characterized in that convex lens are the aspheric convex lens that can eliminate distortion or weaken distortion.
5. the device of watching display screen according to claim 1 is characterized in that 1.1f＞u 〉=f.
6. device of watching display screen, comprise the special-purpose member that connects or display device is installed, it is characterized in that convex lens having eyes to watch display screen to use, convex lens are magnifieres, support lenticular is arranged and can keep the support of the stable distance between the empty position of convex lens and display device, the distance that support can be controlled between convex lens and the display screen is u, u is greater than f ÷ (1+f) and less than a certain numerical value in 1.1 * f scope, wherein f is the focal length numerical value of convex lens, and the unit of f and u is rice.
7. the device of watching display screen according to claim 6 is characterized in that focal length of convex lens is 0.2 to 1/4.5 meter or 1/4.5 to 1/4 meter or 1/4 to 1/3.5 meter or 1/3.5 to 1/3 meter or 1/3 to 1/2.5 meter or 1/2.5 to 1/2 meter or 1/2 to 1/1.5 meter or 1/1.5 meter to 1 meter or 1 meter to 10 meters.
8. the device of watching display screen according to claim 6, it is characterized in that support is arranged " convex lens, install display device special-purpose member, keep the support of the stable distance between convex lens and the screen position " bracing frame, this bracing frame is adjustable bracing frame, adjusts this bracing frame and can make the special-purpose member of convex lens and installation display device together move to the observer at the moment.
9. the device of watching display screen according to claim 6 is characterized in that convex lens are the aspheric convex lens that can eliminate distortion or weaken distortion.
10. the device of watching display screen according to claim 6 is characterized in that 5f ÷ (f+5) 〉=u 〉=f ÷ (1+f) or 1.1f＞u 〉=f.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101702052A (en) * | 2009-11-26 | 2010-05-05 | 王霖华 | Concave mirror device for viewing display screen |
| CN104575279B (en) * | 2015-02-16 | 2018-09-21 | 京东方科技集团股份有限公司 | A kind of display device frame and display device |
| CN106094998A (en) * | 2016-06-24 | 2016-11-09 | 柳州市瑞日信息科技有限公司 | Computer display screen |
| CN106710497B (en) | 2017-01-20 | 2020-05-12 | 京东方科技集团股份有限公司 | Display system and display method |
| WO2019000194A1 (en) * | 2017-06-26 | 2019-01-03 | 深圳市柔宇科技有限公司 | Display module, and head-mounted electronic apparatus |
| CN107979676A (en) * | 2017-12-12 | 2018-05-01 | 昆山沃德诺利信息技术有限公司 | A kind of mobile phone positioner |
| CN108154730B (en) * | 2018-02-06 | 2023-09-05 | 郑州神龙教育装备有限公司 | Intelligent teaching display system |
| US20220100071A1 (en) * | 2019-03-05 | 2022-03-31 | Thomas Jefferson University | Dynamic wall for augmented reality |
| CN112153416A (en) * | 2019-06-28 | 2020-12-29 | 北京金山云网络技术有限公司 | Video playing control method and device, electronic equipment and storage medium |
| CN114339055B (en) * | 2022-01-18 | 2023-08-15 | 韩文静 | Intelligent environment-friendly monitoring device based on Internet |
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| CN2431619Y (en) * | 2000-07-06 | 2001-05-23 | 杜礼政 | High-true wide-angle stereo display device |
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| CN2431619Y (en) * | 2000-07-06 | 2001-05-23 | 杜礼政 | High-true wide-angle stereo display device |
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