CN105739094A - Near-eye display method based on lens array - Google Patents

Near-eye display method based on lens array Download PDF

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Publication number
CN105739094A
CN105739094A CN201410767747.XA CN201410767747A CN105739094A CN 105739094 A CN105739094 A CN 105739094A CN 201410767747 A CN201410767747 A CN 201410767747A CN 105739094 A CN105739094 A CN 105739094A
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CN
China
Prior art keywords
lens
display
lens arra
arra
human eye
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410767747.XA
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Chinese (zh)
Inventor
桑新柱
陈志东
于迅博
颜玢玢
陈铎
王鹏
高鑫
苑金辉
王葵如
余重秀
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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Publication date
Application filed by Beijing University of Posts and Telecommunications filed Critical Beijing University of Posts and Telecommunications
Priority to CN201410767747.XA priority Critical patent/CN105739094A/en
Publication of CN105739094A publication Critical patent/CN105739094A/en
Pending legal-status Critical Current

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Abstract

The invention relates to the near-eye display technology field and particularly relates to a near-eye display method based on a lens array. According to the method, multiple lenses with equal focal lengths are employed to form the lens array, a display is placed at a focal plane of the lens array, and an image of the display is displayed to a user through the lens array. The invention further provides an image processing method, a display sub image of a target image is selected according to a display zone of the display corresponding to the lens array, and all the selected display sub images are spliced to form a display image. Through the near-eye display method and the image processing method, a problem of relative aperture condition restrictions of a single lens can be solved, effects of reducing the volume and the weight of the near-eye display device can be realized, and the comfort level of the user wearing the near-eye display device on the head is improved.

Description

A kind of nearly eye display packing based on lens arra
Technical field
The present invention relates to nearly eye Display Technique field, particularly relate to a kind of nearly eye display packing based on lens arra.
Background technology
Nearly eye display device, is a kind of Display Technique allowing the wearer to see the close content of distance human eye clearly.It is mainly used in military affairs and scientific research field at first.Along with the development of science and technology, near-to-eye progresses in the middle of the life of people.
Head-wearing display device common at present adopts opaque structure, utilizes lens to be imaged in the focusing range of human eye by display contents close for distance human eye so that human eye can see the content on display clearly.But, existing nearly eye display device adopts simple lens display packing, due to the restriction of single lens relative aperture condition so that common head-mounted display is heavier, uses extremely inconvenient, and also cannot be convenient for carrying.
Summary of the invention
Adopt simple lens display packing to make the problem that common head-mounted display is heavier for above-mentioned existing nearly eye display device, the invention provides a kind of nearly eye display packing based on lens arra.
The present invention provides a kind of nearly eye display packing based on lens arra, including:
Adopt the lens composition lens arra that multiple focal length is equal;
Display is made to be positioned at the focal plane place of described lens arra;
Image in described display is shown to user through described lens arra.
Further, the step of the lens composition lens arra that the multiple focal length of described employing is equal, including:
Distance according to human eye viewing areas size and human eye to lens arra determines the spacing in the focal length and described lens arra selecting lens between lens.
Further, described human eye viewing areas size, human eye meet below equation to the spacing between lens in the distance of lens arra, the focal length of lens and described lens arra:
p L = f f + D
Wherein, p is lens unit spacing, and L behaves to observe and sees area size, and f is lens unit focal length, and D is the human eye distance to lens arra.
Further, the aperture shape of described each lens is circular, rectangle or equilateral triangle, square, regular hexagon.
Further, the aperture shape of described lens when being rectangular or square when described lens alignment formed lens arra;The described lens corresponding when being circular, equilateral triangle or regular hexagon of the aperture shape of described lens are staggered formation lens arra.
On the other hand, the present invention also provides for the processing method of the image shown by a kind of nearly eye display packing, and described method includes:
Determine the viewing area of the corresponding described display of each lens in described lens arra;
Choose a part of display subgraph as single viewing area in target image respectively;
The all display subgraphs chosen are spliced into the display image that a width is complete.
Further, the step of the described viewing area determining the corresponding described display of each lens in described lens arra, including:
The viewing area of the corresponding described display of each lens in described lens arra is determined to the distance of lens arra and the focal length of lens according to human eye viewing areas size, human eye.
Further, described human eye viewing areas size, human eye meet below equation to the length of the viewing area of the corresponding described display of the distance of lens arra, the focal length of lens and each lens:
f D = w L
Wherein, f is the focal length of lens, and D is the human eye distance to lens arra, and w is the length of the viewing area of the corresponding described display of each lens, and L behaves to observe and sees area size.
Further, described choose in target image the part step as the display subgraph of single viewing area respectively, including:
For each lens in described lens arra, is alignd with described lens centre in the center of target image, choose the described target image viewing area intersection corresponding with the described lens display subgraph as this viewing area.
Further, the described step that all display subgraphs chosen are spliced into the complete display image of a width, including:
It is spliced into the display image that a width is complete according to described viewing area corresponding to each display subgraph sequence of positions over the display.
A kind of nearly eye display packing based on lens arra provided by the invention, by adopting the lens composition lens arra that multiple focal length is equal, display is made to be positioned at the focal plane place of described lens arra, image in described display is shown to user through described lens arra, the restriction of single lens relative aperture condition can be broken through, realize reducing nearly eye display device volume and alleviating the effect of nearly eye display device weight, improve people and wear the comfort level of nearly eye display device.
Accompanying drawing explanation
Being more clearly understood from the features and advantages of the present invention by reference accompanying drawing, accompanying drawing is schematic and should not be construed as and the present invention is carried out any restriction, in the accompanying drawings:
Fig. 1 is the schematic flow sheet of the nearly eye display packing in one embodiment of the invention based on lens arra;
Fig. 2 is a kind of lens arra and location of displays schematic diagram in one embodiment of the invention;
Fig. 3 is human eye viewing areas size in one embodiment of the invention, human eye is to the distance of lens arra, the focal length of lens, lenticular spacing and shows subgraph length comparison schematic diagram;
Fig. 4 is rectangular lens array schematic diagram in one embodiment of the invention;
Fig. 5 is hexagon lens arra schematic diagram in one embodiment of the invention;
Fig. 6 is the schematic flow sheet showing image processing method in one embodiment of the invention;
Fig. 7 shows in one embodiment of the invention that subgraph is chosen and splicing schematic diagram;
Fig. 8 is that in one embodiment of the invention, target image processes the effect schematic diagram obtaining display image;
Wherein, 1-display, 2-viewing area, 3-lens arra, 4-lens, 5-human eye, 6-human eye viewing areas.
Detailed description of the invention
In conjunction with drawings and Examples, technical solution of the present invention is further elaborated.
Fig. 1 illustrates the schematic flow sheet of a kind of nearly eye display packing based on lens arra in the present embodiment, as it is shown in figure 1, a kind of nearly eye display packing based on lens arra that the present embodiment provides, including:
S11, adopts the lens composition lens arra that multiple focal length is equal;
S12, makes display be positioned at the focal plane place of described lens arra;
S13, the image in described display is shown to user through described lens arra.
As shown in Figure 2, multiple lens 4 form lens arra 3, display 1 is positioned over the focal plane place of lens arra, in specific implementation process, determine the spacing between lens in the focal length and described lens arra of selecting lens according to the distance of the size of the viewing areas 6 of human eye 5 and human eye to lens arra.Viewing area 2 be on display with lens 4 one_to_one corresponding in lens arra 3.
As it is shown on figure 3, described human eye viewing areas size, human eye meet below equation to the spacing between lens in the distance of lens arra, the focal length of lens and described lens arra:
p L = f f + D
Wherein, p is lens unit spacing, and L behaves to observe and sees area size, and f is lens unit focal length, and D is the human eye distance to lens arra.
The aperture shape of described each lens is circular, rectangle or equilateral triangle, square, regular hexagon and other regular polygons.The arrangement mode of the lens arra of different lens apertures shape is also different, the shape according to lens unit, selects a kind of suitable arrangement mode so that lens unit filling rate is the highest.For example, when being rectangular or square when for the aperture shape of described lens, described lens alignment forms lens arra, as shown in Figure 4;Described lens corresponding when being circular, equilateral triangle or regular hexagon for the aperture shape of described lens are staggered formation lens arra, as shown in Figure 5.
On the other hand, as shown in Figure 6, the present embodiment also provides for the processing method of the image shown by a kind of nearly eye display packing, and described method includes:
S21, it is determined that the viewing area of the corresponding described display of each lens in described lens arra;
S22, chooses a part of display subgraph as single viewing area in target image respectively;
The all display subgraphs chosen are spliced into the display image that a width is complete by S23.
In specific implementation process, the step of the described viewing area determining the corresponding described display of each lens in described lens arra, including:
The viewing area of the corresponding described display of each lens in described lens arra is determined to the distance of lens arra and the focal length of lens according to human eye viewing areas size, human eye.
Such as, as it is shown on figure 3, described human eye viewing areas size, human eye meet below equation to the length of the viewing area of the corresponding described display of the distance of lens arra, the focal length of lens and each lens:
f D = w L
Wherein, f is the focal length of lens, and D is the human eye distance to lens arra, and w is the length of the viewing area of the corresponding described display of each lens, and L behaves to observe and sees area size.
Described choose in target image the part step as the display subgraph of single viewing area respectively, including:
For each lens in described lens arra, is alignd with described lens centre in the center of target image, choose the described target image viewing area intersection corresponding with the described lens display subgraph as this viewing area.
As shown in Fig. 7 (a), by the center of target image respectively with the center alignment of the 4th, the 5th, the 6th and the 7th lens, choose display subgraph 1 corresponding to this viewing area, display subgraph 2, display subgraph 3 and display subgraph 4 according to the part that target image overlaps with the 4th, the 5th, the 6th and the 7th viewing area respectively.
Then, as shown in Fig. 7 (b), it is spliced into, according to described viewing area corresponding to each display subgraph sequence of positions over the display, the display image that a width is complete.
Fig. 8 gives the effect schematic diagram of image procossing, by the target image shown in Fig. 8 (a) after the present embodiment image processing method processes, obtains the display image as shown in Fig. 8 (b).Display image shown in Fig. 8 (b) is shown in display as shown in Figure 1, each of which display subgraph is respectively through entering human eye 5 after the lens 4 in lens arra 3 corresponding in Fig. 1, the image that human eye 5 is seen is shown in Fig. 8 (a).
A kind of nearly eye display packing based on lens arra that the present embodiment provides, by adopting the lens composition lens arra that multiple focal length is equal, making display be positioned at the focal plane place of described lens arra, the image in described display is shown to user through described lens arra.The image processing method that simultaneously the present embodiment provides, chooses the display subgraph of target image, and all display subgraphs chosen is spliced into a width display image according to the viewing area of display corresponding to lens arra.The restriction of single lens relative aperture condition can be broken through by above-mentioned nearly eye display packing and image processing method, it is achieved reduce nearly eye display device volume and alleviate the effect of nearly eye display device weight, improve people and wear the comfort level of nearly eye display device.
Although being described in conjunction with the accompanying embodiments of the present invention, but those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such amendment and modification each fall within the scope being defined by the appended claims.

Claims (10)

1. the nearly eye display packing based on lens arra, it is characterised in that described method includes:
Adopt the lens composition lens arra that multiple focal length is equal;
Display is made to be positioned at the focal plane place of described lens arra;
Image in described display is shown to user through described lens arra.
2. method according to claim 1, it is characterised in that the step of the lens composition lens arra that the multiple focal length of described employing is equal, including:
Distance according to human eye viewing areas size and human eye to lens arra determines the spacing in the focal length and described lens arra selecting lens between lens.
3. method according to claim 2, it is characterised in that described human eye viewing areas size, human eye meet below equation to the spacing between lens in the distance of lens arra, the focal length of lens and described lens arra:
p L = f f + D
Wherein, p is lens unit spacing, and L behaves to observe and sees area size, and f is lens unit focal length, and D is the human eye distance to lens arra.
4. method according to claim 1, it is characterised in that the aperture shape of described each lens is circular, rectangle or equilateral triangle, square, regular hexagon.
5. method according to claim 4, it is characterised in that the aperture shape of described lens is described lens alignment formation lens arra when being rectangular or square when;The described lens corresponding when being circular, equilateral triangle or regular hexagon of the aperture shape of described lens are staggered formation lens arra.
6. the processing method of the image shown by nearly eye display packing according to claim 1 to 5, it is characterised in that described method includes:
Determine the viewing area of the corresponding described display of each lens in described lens arra;
Choose a part of display subgraph as single viewing area in target image respectively;
The all display subgraphs chosen are spliced into the display image that a width is complete.
7. method according to claim 6, it is characterised in that the step of the described viewing area determining the corresponding described display of each lens in described lens arra, including:
The viewing area of the corresponding described display of each lens in described lens arra is determined to the distance of lens arra and the focal length of lens according to human eye viewing areas size, human eye.
8. method according to claim 7, it is characterised in that described human eye viewing areas size, human eye meet below equation to the length of the viewing area of the corresponding described display of the distance of lens arra, the focal length of lens and each lens:
f D = w L
Wherein, f is the focal length of lens, and D is the human eye distance to lens arra, and w is the length of the viewing area of the corresponding described display of each lens, and L behaves to observe and sees area size.
9. method according to claim 6, it is characterised in that described choose in target image the part step as the display subgraph of single viewing area respectively, including:
For each lens in described lens arra, is alignd with described lens centre in the center of target image, choose the described target image viewing area intersection corresponding with the described lens display subgraph as this viewing area.
10. method according to claim 6, it is characterised in that the described step that all display subgraphs chosen are spliced into the complete display image of a width, including:
It is spliced into the display image that a width is complete according to described viewing area corresponding to each display subgraph sequence of positions over the display.
CN201410767747.XA 2014-12-11 2014-12-11 Near-eye display method based on lens array Pending CN105739094A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019165620A1 (en) * 2018-03-01 2019-09-06 陈台国 Near eye display method capable of multi-depth of field imaging
CN110244469A (en) * 2019-06-19 2019-09-17 中国人民解放军陆军装甲兵学院 A kind of determination method and system of directional scattering device position and diffusion angle
CN113253454A (en) * 2020-02-11 2021-08-13 京东方科技集团股份有限公司 Head-mounted display device and manufacturing method thereof
CN113325588A (en) * 2021-06-21 2021-08-31 凤凰光学股份有限公司 High-brightness high-resolution high-contrast augmented reality display equipment

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CN103885582A (en) * 2012-12-19 2014-06-25 辉达公司 Near-eye Microlens Array Displays

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US5499138A (en) * 1992-05-26 1996-03-12 Olympus Optical Co., Ltd. Image display apparatus
US5561538A (en) * 1992-11-17 1996-10-01 Sharp Kabushiki Kaisha Direct-view display apparatus
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US7898477B1 (en) * 2010-01-31 2011-03-01 Roger Dale Oxley Volumetric direction-finding using a Maxwell Fish-Eye lens
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019165620A1 (en) * 2018-03-01 2019-09-06 陈台国 Near eye display method capable of multi-depth of field imaging
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CN110244469A (en) * 2019-06-19 2019-09-17 中国人民解放军陆军装甲兵学院 A kind of determination method and system of directional scattering device position and diffusion angle
CN110244469B (en) * 2019-06-19 2021-03-23 中国人民解放军陆军装甲兵学院 Method and system for determining position and diffusion angle of directional diffuser
CN113253454A (en) * 2020-02-11 2021-08-13 京东方科技集团股份有限公司 Head-mounted display device and manufacturing method thereof
CN113325588A (en) * 2021-06-21 2021-08-31 凤凰光学股份有限公司 High-brightness high-resolution high-contrast augmented reality display equipment

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