CN203941344U - The penetration video eyeglasses optical engine system that a kind of interpupillary distance is adjustable - Google Patents
The penetration video eyeglasses optical engine system that a kind of interpupillary distance is adjustable Download PDFInfo
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- CN203941344U CN203941344U CN201420334610.0U CN201420334610U CN203941344U CN 203941344 U CN203941344 U CN 203941344U CN 201420334610 U CN201420334610 U CN 201420334610U CN 203941344 U CN203941344 U CN 203941344U
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- lens group
- display device
- engine system
- optical engine
- video eyeglasses
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Abstract
The utility model belongs to penetration video eyeglasses display technique field, and the penetration video eyeglasses optical engine system that a kind of interpupillary distance is adjustable is comprised of display device, eyepiece lens group, telephoto lens group and human eye pupil etc.The image being specially in display device forms the virtual image in infinite distance through eyepiece lens, and this virtual image receives and finally enter human eye pupil by telephoto lens group; By regulating the gap between eyepiece lens group and telephoto lens group, do not affecting under the prerequisite of the imaging enlargement ratio of whole light engine, image quality and emergent pupil size, meet the demand of the different interpupillary distances of different wearer's eyes position.
Description
Technical field
The utility model belongs to penetration video eyeglasses display technique field, is specially the adjustable penetration video eyeglasses optical engine system of interpupillary distance, is the system that a kind of compactness is light and handy, can be for the penetration video eyeglasses display device of augmented reality.
Background technology
Video eyeglasses display technique is mainly the image that image source is produced, by light path system, and the virtual image of an amplification of formation of certain distance before human eye.In order to distinguish the display technique that whether can observe real world, be divided into again penetration and direct-viewing type, penetration video eyeglasses technology can obtain the image information of image source and environment simultaneously.It mainly constructs video eyeglasses display system and comprises image source, illuminator, imaging system, wears support (picture frame) etc.For the limited emergent pupil of optical system, need pupil spacing adjustable, when user's binocular spacing (being interpupillary distance) is different from the pupil spacing of optical system, the entrance pupil of human eye can not well mate with the emergent pupil of optical system.For different wearers' interpupillary distance requirement, the adjustment of the upper interpupillary distance of general design is all to realize by increasing the emergent pupil size of light engine at present, but this will greatly increase light engine design difficulty, system dimension and debug cost.
Utility model content
For the defect existing in prior art, in the optical system that the purpose of this utility model is to show at video eyeglasses, added the adjustment amount for interpupillary distance demand, the adjustable penetration video eyeglasses optical engine system of a kind of interpupillary distance has been proposed, in adjustment process, can not cause because of interpupillary distance adjustment the acute variation such as system imaging quality and enlargement ratio, the design complexities that does not need to increase optical engine system is the solution that a kind of compactness is light and handy simultaneously.
The penetration video eyeglasses optical engine system that described a kind of interpupillary distance is adjustable, is provided with successively along light transmition direction: display device, eyepiece lens group, telephoto lens group and human eye pupil.Spacing between eyepiece lens group and telephoto lens group is adjustable.Image in display device forms the virtual image in infinite distance through eyepiece lens, and this virtual image is received and entered human eye pupil by telephoto lens group.
The penetration video eyeglasses optical engine system that described a kind of interpupillary distance is adjustable, display device is LCD, LED, LCoS, DLP, OLED or other image source.When display device is non-active light emitting source, back lighting module need to be set with lighting display device.
The penetration video eyeglasses optical engine system that described a kind of interpupillary distance is adjustable, display device is positioned near the front focus of eyepiece lens group, and the image in display device forms the virtual image in infinite distance (image distance >5mm) through eyepiece lens; The full field angle of eyepiece lens group is 5 degree～30 degree, exit pupil diameter 1mm～8mm, and distance of exit pupil is at 5mm～30mm.
The penetration video eyeglasses optical engine system that described a kind of interpupillary distance is adjustable, the virtual image that display device forms through eyepiece lens is received and enters human eye by telephoto lens group; Telephoto lens group emergent pupil 2～10mm, 1～10 times of enlargement ratio.
The penetration video eyeglasses optical engine system that described a kind of interpupillary distance is adjustable, between eyepiece lens group and telephoto lens group, gap can be adjusted apart from difference according to end user's eye pupil, and can not produce obviously impact to the imaging multiplying power of video eyeglasses optical engine system, image quality and emergent pupil size.
The penetration video eyeglasses optical engine system that described a kind of interpupillary distance is adjustable, eyepiece lens group can be comprised of a plurality of eyeglasses, and eyeglass material is glass or plastics, and face type can be sphere, aspheric surface, diffraction surfaces or holographic facet etc.
The penetration video eyeglasses optical engine system that described a kind of interpupillary distance is adjustable, telephoto lens group can be comprised of a plurality of eyeglasses, and eyeglass material is glass or plastics, and face type can be sphere, aspheric surface, diffraction surfaces or holographic facet etc.; Also can be combined into a strip part, part is used same material or unlike material gummed.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the adjustable penetration video eyeglasses of interpupillary distance light engine optical system;
Fig. 2 is optical system pie graph of the present utility model;
Fig. 3 is the formation schematic diagram of a kind of embodiment of the utility model;
Figure 4 ?a, 4 ?b, 4 ?c be the concrete index path of each each distance values of visual field of a kind of embodiment of the utility model;
Figure 5 ?a, 5 ?b, 5 ?c be the MTF performance figure of each interpupillary distance adjustable distance of a kind of embodiment of the utility model;
Fig. 6 is the distortion figure of a kind of embodiment of the utility model;
Fig. 7 is the index path of the active illuminating light source display unit (OLED) mentioned of the utility model;
Fig. 8 and Fig. 9 are two kinds of lighting system figure of the non-active illuminating source display device (LCoS) mentioned of the utility model.
Embodiment
Fig. 1 has provided the described adjustable penetration video eyeglasses optical engine system light path principle figure of a kind of interpupillary distance, can find out that system consists of L1, L2, tri-lens combination of L3, and A and B are respectively image source part and system emergent pupil.Corresponding described in the utility model, L1 eyepiece lens group, L2, L3 form telephoto lens group.Image source A is positioned in the front focus of lens combination L1, and L2 lens combination back focus overlaps with L3 lens front focus.The light beam that image source A sends is after L1 lens combination collimation, and after the adjustable interpupillary distance spacing between L1, L2, the telephoto lens group that enters L2, L3 composition finally arrives human eye entrance pupil.By adjusting L1, L2 lens combination spacing, can there is not significant change in the parameters such as the imaging multiplying power of whole system, image quality and emergent pupil size.If the system focal length of three lens combination L1, telephoto lens group is respectively f
1, f
23, L1 and telephoto lens group spacing are d, the focal distance f=f of whole optical system
1, because object plane is positioned on the front focal plane of L1, so system enlargement ratio
to sum up can obtain, system
The optical system that Fig. 2 has provided the adjustable penetration video eyeglasses optical engine system of a kind of interpupillary distance forms, and the penetration video eyeglasses optical engine system that interpupillary distance is adjustable is comprised of display device 1, eyepiece lens group 2, telephoto lens group 3 and human eye pupil 4.Be specially image in display device 1 through 2 one-tenth virtual images of eyepiece lens group in infinite distance, this virtual image receives and finally enters human eye pupil 4 by telephoto lens group 3.
Fig. 3 has provided a kind of embodiment of the adjustable penetration video eyeglasses optical engine system of a kind of interpupillary distance, along optical path direction, 101 be LCoS image source successively, 102 is illumination PBS, 103 is collimating optics lens combination, 104 for turning to triangular prism, and 105 is that imaging len one, 106 is imaging PBS, 107 is that imaging len two, 4 is people's eye pupil hole.101 and 102 have formed whole image source system, and 103 and 104 have formed eyepiece lens group, and 105,106,107 have formed the lens combination of looking in the distance.The light source that system is sent by LCOS, the prism of process eyepiece lens group turns to, and has carried out once collimation.Between 104,105, have certain intervals, realize exactly the adjustable distance that interpupillary distance is adjusted, present embodiment has provided the adjustment amount of 5mm.Light is Amici prism through 105 arrival 06,106, with 105 cemented surface plated film, can be according to actual ray machine purposes, at interface plating part reflective semitransparent film or polarizing coating in order to realize the video eyeglasses display system of penetration.107 is imaging len two, at the outside surface contacting with air, plates an inner total reflection film, and in order to catadioptric light path, light again through 106 plated film light splitting surface, arrives human eye entrance pupil 4 after turning back after reflection.This embodiment has compact light and handy volume, and nearly eyelens segment thickness is less than 12mm.Wherein connecing eye portion 105,106,107 and turning to prism 104 is all plastic lens glued together, and the selection of material is all PC, has significantly reduced whole quality and volume size.
Figure 4 shows that a kind of embodiment described in the utility model is in the concrete light path of each adjustable interpupillary distance spaced points.The maximum field of view angle of this implementation is 15 °, and focal distance f is 21.2mm.Interpupillary distance adjustable distance in diagram be respectively 6mm (figure 4 ?a), 4mm (figure 4 ?b), 1mm (figure 4 ?c).
Fig. 5 is the above a kind of implementation of the utility model in the MTF of each adjustable interpupillary distance spaced points performance, the interpupillary distance adjustable distance in diagram be respectively 6mm (figure 5 ?a), 4mm (figure 5 ?b), 1mm (figure 5 ?c).At spatial frequency 30lp/mm, mtf value all, near 0.4, can meet the requirement of video eyeglasses optical system.
Fig. 6 is the distortion performance of the above a kind of implementation of the utility model, can find out that the distortion in all visual fields is all less than 3%, can meet the requirement of video eyeglasses optical system.
Fig. 7 is the light path mode of the active illuminating light source display unit (OLED) mentioned of the utility model, and 301 is display device (OLED), and the 2 eyepiece lens groups that connect after being middlely do not need the PBS prism 102 shown in Fig. 3.
Fig. 8 and Fig. 9 are respectively two kinds of lighting system figure of non-active illuminating source display device (LCoS) that the utility model is mentioned, wherein Fig. 7 is active illumination, and Fig. 8 is backlight type illumination.As shown in the figure, in Fig. 7 and Fig. 8 101 is display device (LCoS), 102 is all PBS, the light source led of 201 illuminations, the 2 eyepiece lens groups that connect after being all, difference be 202 and 203, Fig. 7 in active illumination used a collector lens group 202, what Fig. 8 passive type illumination was used is a backlight module 203.The lighting system of the non-active illuminating source display device that the utility model relates to is not limited to above two kinds of enumerating.
Above embodiment, be only explanation technical characterictic of the present utility model and exploitativeness, its object is to make person skilled in art can understand content of the present utility model and be implemented, although the utility model is described with reference to specific embodiment, but, these descriptions should be interpreted as to a kind of restriction situation, for those skilled in the art with reference to obviously making the various improvement in disclosed embodiment and other embodiment of the present utility model description of the present utility model above, all conversion of having done according to design of the present utility model, all belong to protection domain of the present utility model.
Claims (6)
1. the adjustable penetration video eyeglasses optical engine system of interpupillary distance, is characterized in that: along light transmition direction, be provided with successively: display device (1), eyepiece lens group (2), telephoto lens group (3) and human eye pupil (4); Spacing between eyepiece lens group (2) and telephoto lens group (3) is adjustable; Image in display device (1) becomes the virtual image in infinite distance through eyepiece lens group (2), and this virtual image is received and entered human eye pupil (4) by telephoto lens group (3).
2. the adjustable penetration video eyeglasses optical engine system of a kind of interpupillary distance according to claim 1, it is characterized in that: display device (1) is LCD, LED, LCoS, DLP, OLED or other image source, when display device (1) is non-active light emitting source, back lighting module need to be set with lighting display device (1).
3. the adjustable penetration video eyeglasses optical engine system of a kind of interpupillary distance according to claim 1, it is characterized in that: display device (1) is positioned at the front focus place of eyepiece lens group (2), image in display device (1) becomes the virtual image in infinite distance through eyepiece lens group (2), image distance >5mm; The full field angle of eyepiece lens group (2) is 5 degree ~ 30 degree, exit pupil diameter 1mm ~ 8mm, and distance of exit pupil is at 5mm ~ 30mm, and focal length is determined by sized display.
4. the adjustable penetration video eyeglasses optical engine system of a kind of interpupillary distance according to claim 1, is characterized in that: the virtual image that display device (1) becomes through eyepiece lens group (2) is received and enter human eye by telephoto lens group (3); Telephoto lens group emergent pupil 2 ~ 10mm, enlargement ratio 1 ~ 10.
5. the adjustable penetration video eyeglasses optical engine system of a kind of interpupillary distance according to claim 1, it is characterized in that: between eyepiece lens group (2) and telephoto lens group (3), gap can be adjusted apart from difference according to end user's eye pupil, and can not produce obviously impact to the imaging multiplying power of video eyeglasses optical engine system, image quality and emergent pupil size.
6. the adjustable penetration video eyeglasses optical engine system of a kind of interpupillary distance according to claim 3, it is characterized in that: eyepiece lens group (2) can be comprised of a plurality of eyeglasses, eyeglass material is glass or plastics, and face type is sphere, aspheric surface, diffraction surfaces or holographic facet; Telephoto lens group (3) is comprised of a plurality of eyeglasses, and eyeglass material is glass or plastics, and face type is sphere, aspheric surface, diffraction surfaces or holographic facet; Telephoto lens group (3) can be combined into a strip part, and part is used same material or unlike material gummed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334610.0U CN203941344U (en) | 2014-06-19 | 2014-06-19 | The penetration video eyeglasses optical engine system that a kind of interpupillary distance is adjustable |
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|---|---|---|---|
| CN201420334610.0U CN203941344U (en) | 2014-06-19 | 2014-06-19 | The penetration video eyeglasses optical engine system that a kind of interpupillary distance is adjustable |
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| CN203941344U true CN203941344U (en) | 2014-11-12 |
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| CN201420334610.0U Expired - Fee Related CN203941344U (en) | 2014-06-19 | 2014-06-19 | The penetration video eyeglasses optical engine system that a kind of interpupillary distance is adjustable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049368A (en) * | 2014-06-19 | 2014-09-17 | 浙江晶景光电有限公司 | Pupil distance adjustable penetration type video glasses optical engine system |
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2014
- 2014-06-19 CN CN201420334610.0U patent/CN203941344U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049368A (en) * | 2014-06-19 | 2014-09-17 | 浙江晶景光电有限公司 | Pupil distance adjustable penetration type video glasses optical engine system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20170619 |