A kind of nearly eye display device optical system adjusting apparatusTechnical field
The utility model is related to nearly eye field of display devices, more specifically to a kind of nearly eye display device optical systemSystem adjusting apparatus.
Background technology
Nearly eye display device includes the head-mounted display (HMD) that can be projected directly at image in observer's eye, this nearEye display device is the conventional device of current virtual reality (VR) or augmented reality (AR) field.Generally, nearly eye is shownThe display screen of device apart from user eyeball less than ten centimetres, by special optical treatment, nearly eye display device can be byIt is incident upon on the retina of people to image clearly, virtual large area image is showed before user, virtual reality is consequently forOr augmented reality.
Nearly eye display device is using preceding having to pass through interpupillary distance measurement and optical system is adjusted.When the eyeball position of userOr the optical system of dioptric system and nearly eye display device is filled (referring to Fig. 1), it is necessary to adjust nearly eye display when can not coordinate very wellThe optical system put, allows user to see clearly image in eye.Without preferable more than the nearly eye display device of prior artInterpupillary distance adjustment function, user is in use only with feeling to manually adjust optical system, and not only error is very big, and makesWith very inconvenient.
Utility model content
There is no the defect of preferable interpupillary distance adjustment function to solve current nearly eye display device, the utility model provides onePlant nearly eye display device optical system adjusting apparatus.
The utility model solves the technical scheme that its technical problem used：A kind of nearly eye display device optical system is providedSystem adjusting apparatus, the nearly eye display device includes display screen, optical mirror slip, adjusting means, and the optical mirror slip is adjusted with describedRegulating device is connected, the optical mirror slip can under the drive of the adjusting means left-right rotation, the adjusting means includesShade, the shade includes loophole.
Preferably, the shade further comprises regulation roller, geared system and support, and the shade is setIn the inside of the support, adjusting the roller can control the geared system to drive the optical mirror slip motion, described to hideElectro-optical device can be moved with the optical mirror slip.
Preferably, the shade and the optical mirror slip can along the display screen center rotating, rotation processDescribed in shade and the optical mirror slip keep geo-stationary.
Preferably, the display screen is fixedly installed, when the adjusting means drives the optical mirror slip to move together, instituteDisplay screen is stated not move with the optical mirror slip.
Preferably, when the adjusting means drives the optical mirror slip to move together, the display screen is with the opticsEyeglass is moved together.
Preferably, the nearly eye display device is virtual implementing helmet.
Compared with prior art, the utility model, can be accurate by the way of shade and display screen cooperateAdjust optical system, it is ensured that optical system perfect can be shown.Relative to need by electronic equipment measure interpupillary distance again to opticsSubstantial amounts of cost is saved for the device that system is adjusted, is conducive to the manufacturing and popularization of equipment.ShadeThe inside of support is arranged on, be able to can both be prevented from losing again with convenient for collecting.Can by the centrally disposed loophole in shadeSo that the light vertical exit at display screen center, it is ensured that the accuracy of measurement.When unused, shade is received in display screenBoth sides, do not influence display.Geared system is adjusted by roller by user, convenient and easy.Played and surveyed by display screenAttempt as that can be pointed out when regulation is to better effects adjustment person.Show that a target center contributes at the center of display screenMark point is recognized, shows that green arrow can adjust optical system with convenient use person according to arrow direction indication around it.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the nearly eye display device structure schematic diagram of prior art；
Fig. 2 is that the nearly eye display device of the utility model works as the structural representation that shade is not extended out；
Fig. 3 is shade structural representation；
Fig. 4 is structural representation of the nearly eye display device of the utility model when shade stretches out；
Fig. 5 is that the nearly eye display device optical system of the utility model does not adjust light propagation schematic diagram；
Fig. 6 is that the nearly eye display device optical system of the utility model does not adjust loophole display schematic diagram；
Fig. 7 is that the light that the nearly eye display device optical system of the utility model is adjusted propagates schematic diagram；
Fig. 8 is the loophole display schematic diagram that the nearly eye display device optical system of the utility model is adjusted；
Fig. 9 is the nearly eye display device first embodiment schematic diagram of the utility model；
Figure 10 is the nearly eye display device second embodiment schematic diagram of the utility model.
Embodiment
There is no interpupillary distance detection function and the defect of automatic regulating function to solve current nearly eye display device, this practicality is newType provides a kind of nearly eye display device optical system adjusting apparatus.
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailedIllustrate embodiment of the present utility model.
Fig. 2-Fig. 4 is referred to, the utility model includes nearly eye display device 100, and nearly eye display device 100 can be emptyIntend the real helmet.Nearly eye display device 100 includes display screen 10, optical mirror slip 20, adjusting means 30, and adjusting means 30 includes adjustingRoller 31, geared system 32, shade 33 and support 34 are saved, geared system 32 is connected with optical mirror slip 20 by support 34Connect, optical mirror slip 20 can do the rotation of small range under the drive of geared system 32.When in use, adjustment regulation roller 31 isGeared system 32 can be made to drive the small range of optical mirror slip 20 or so to rotate, center of rotation is the center of display screen 10.Relative to waterThe dynamic optical mirror slip 20 of translation for adjusting optical system, the life of human eye is more conformed to by center of rotation of the center of display screen 10Feature is managed, makes display effect more preferably.Under normal usage, shade 33 be in display screen 10 end, when need intoDuring the adjustment of row optical system, shading is played a part of in the back that shade 33 reaches optical mirror slip 20.Shade bagInclude loophole 332.The light that display screen 10 is launched can reach optical mirror slip 20 by loophole 332, then by optical mirror slip20 are transmitted to exterior space.When two respective geometric centers of optical mirror slip 20 line distance with it is unequal with the interpupillary distance of human eyeWhen, the right position of optical mirror slip 20 can be adjusted by adjusting adjusting means 31, shade 33 can be with optical mirror slip20 move together.
Refer to Fig. 5-Fig. 8, during adjustment the line distance of two respective geometric centers of optical mirror slip 20 withWhen the interpupillary distance of human eye is equal, the center of display screen 10, the geometric center of optical mirror slip 20 and the pupil of human eye are straight just at oneOn line, perfect optical requirement is reached, now display effect is optimal.During regulation, the display centre of display screen 10 is shownGreen target center, on the central horizontal line of display screen 10, the left side of green target center shows the green arrow towards the right, green targetThe right side of the heart shows the green arrow towards the left side, the position of green target center is pointed out, other positions do not light.Work as displayDuring the obstructed remarkable eye pupil hole of the line of the geometric center of center and the optical mirror slip 20 of screen 10, user can pass through loophole332 observe the arrow of green, can adjust optical system according to the sensing of arrow；When in display screen 10 during adjustmentWhen the pupil of the heart, the geometric center of optical mirror slip 20 and human eye is in a straight line, the green target center of display centre transmittingLight can reach human eye by loophole 332.User sees that green target center may know that now optical system regulation reachesSatisfied accuracy, you can stop regulation, the two ends that shade 33 is adjusted into display screen 10 are normally shown using nearly eye to be filledPut 100.Using green glow as mark light on the one hand be because green light under dark background than more visible and obvious, it is anotherAspect green glow, without stronger stimulation, it also avoid causing the vision system of people damage to human eye.
Fig. 9-Figure 10 is referred to, Fig. 9-Figure 10 respectively illustrates two kinds of embodiments of the present utility model, this reality shown in Fig. 9New first embodiment is used, when adjusting means 30 drives optical mirror slip 20 to move together, display screen 10 is not with optical mirror slip 20Move together, because optical mirror slip 20 is the center rotating along display screen 10, therefore the emission center of display screen 10 light according toIt can so be emitted by the geometric center of optical mirror slip 20 with straight line, light does not occur partially when passing through optical mirror slip 20Turn.The benefit so designed is that display screen 10 can be fixedly installed, and simplifies design and assembling process.This practicality is new shown in Figure 10Type second embodiment, when adjusting means 30 drives optical mirror slip 20 to move together, display screen 10 is moved with optical mirror slip 20Dynamic, such display screen 10 and optical mirror slip 20 keep geo-stationary, therefore the light of the emission center of display screen 10 can still lead toThe geometric center for crossing optical mirror slip 20 is emitted with straight line, and light does not deflect when passing through optical mirror slip 20.DisplayAs optical mirror slip 20 is moved together display effect can more protruded screen 10, adds the selection of visual angle and the depth of field.
When adjusting beginning, display screen 10 plays test image, the green target center of display centre display of display screen 10, aobviousOn the central horizontal line of display screen 10, the left side of green target center shows the green arrow towards the right, and the right side of green target center is shownTowards the green arrow on the left side.User wears nearly eye display device 100, and adjusts shade 33 in stretching state, adjustsWhole adjusting means 31 adjusts the right position of optical mirror slip 20, is adjusted according to the instruction of green arrow, until seeing greenUntill target center.When can persistently see the target center of green in the visual field, it is believed that now the regulation of optical system reaches satisfiedAccuracy, can stop adjusting optical system.The now pupil of the center of display screen 10, the geometric center of optical mirror slip 20 and human eyeIt is in a straight line, display effect is optimal.
Compared with prior art, the utility model is by the way of shade 33 and display screen 10 cooperate, can be withAccurate adjustment optical system, it is ensured that optical system perfect can be shown.It is right again by electronic equipment measurement interpupillary distance relative to needingSubstantial amounts of cost is saved for the device that optical system is adjusted, is conducive to the manufacturing and popularization of equipment.ShadingDevice 33 is arranged on the inside of support 34, be able to can both prevent from losing again with convenient for collecting.By being set at the center of shade 33The light vertical exit at the center of display screen 10 can be made by putting loophole 332, it is ensured that the accuracy of measurement.When unused, shadingDevice 33 is received in the both sides of display screen 10, and display is not influenceed.Geared system 32 is adjusted by roller 31 by user, sideEasy row.Playing test image by display screen 10 can point out adjustment person when regulation is to better effects.In displayScreen 10 center show one target center contribute to recognize mark point, around it display green arrow can with convenient use person according toArrow direction indication adjusts optical system.
Embodiment of the present utility model is described above in conjunction with accompanying drawing, but the utility model is not limited toThe embodiment stated, above-mentioned embodiment be only it is schematical, rather than restricted, this area it is commonTechnical staff is not departing from the utility model objective and scope of the claimed protection situation under enlightenment of the present utility modelUnder, many forms can be also made, these are belonged within protection of the present utility model.