CN102752503A - TV camera device with four spliced double-light-path CCDs (Charge Coupled Devices) - Google Patents
TV camera device with four spliced double-light-path CCDs (Charge Coupled Devices) Download PDFInfo
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- CN102752503A CN102752503A CN2012102361255A CN201210236125A CN102752503A CN 102752503 A CN102752503 A CN 102752503A CN 2012102361255 A CN2012102361255 A CN 2012102361255A CN 201210236125 A CN201210236125 A CN 201210236125A CN 102752503 A CN102752503 A CN 102752503A
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Abstract
The invention discloses a TV camera device with four spliced double-light-path CCDs (Charge Coupled Devices) and belongs to the technical field of photoelectrical imaging. Two same imaging lens sets are adopted by the TV camera device; a turning reflector and an image synthesized compound prism are used for superposing two paths of light energies, so that the light energy on each CCD target surface is doubled; the problem of insufficient light energy on the CCD target surface during the process of splicing four single-light-path CCDs is solved; besides, the image synthesized compound prism, two light-splitting compound prisms and two reflectors are utilized to realize the separation of four CCD mounting surfaces; and a tuning mechanism containing two pairs of double optical wedges is used for eliminating the image position deviation of a two-path optical system, so that the problem of image seamless butt-joint during the process of splicing the four CCDs is effectively solved. The TV camera device provided by the invention has the advantages of simple structure, light weight, low cost, convenience in debugging, high reliability, and the like.
Description
Technical field
The invention belongs to the photodetection field, relate to a kind of television pick-up equipment of many CCD device splicing, be mainly used in the cannon photoelectric follow-up.
Background technology
Ccd video camera is as the necessary component of cannon photoelectronic reconnaissance detection system; Be generally used for tracking and monitoring to target; It generally is made up of with different optical systems a CCD image device, and different optical systems has different fields of view size and resolution index.For an optical system, when the visual field was big, resolution was low, did not reduce resolution again in order to enlarge the visual field, can receive through the connecting method of two CCD or many CCD to realize with the optical imagery of visual field light path.
For for the two CCD connecting methods of light path, adopt semi-transparent semi-reflecting Amici prism that incident light is divided into two-way usually and penetrate, two-way emergent light luminous energy is the half the of incident light, and they image in respectively on two CCD target surfaces.Image on two CCD is through forming the two CCD spliced image pictures of a width of cloth after the processing of circuit.Yet the visual field dilatation of this connecting method is limited.If when realizing that four CCD splicing is carried out in bigger visual field, just need to adopt the two-stage Amici prism could realize more multiple CCD seamless splicing, at this moment the optical system light energy that arrives CCD will lose 3/4ths.When ccd video camera was applied to than the low-light (level) environment, this many CCD connecting method light energy losses can produce the serviceability of ccd video camera and picture quality and have a strong impact on.
The splicing of CCD at present mainly is that the splicing of two CCD is used, and is restricted in practical application owing to optical energy loss is excessive when splice with light path four CCD.
The excessive problem of optical energy loss that causes when adopting double light path image synthetic technology to solve to splice with light path four CCD.But when having adopted the double light path compound imaging, CCD sensitization energy decreases is obvious when two-way optics optical axis occurs deviation greater than 0.3 pixel, causes image resolution ratio obviously to descend thereby ghost image can appear in ccd image output.Guarantee the quality of ccd image output when the double light path image is synthetic, each light path must could satisfy the synthetic requirement of normal picture less than 0.1 pixel at CCD target surface image space.Usually our the double light path optical axis debud mode taked can guarantee that each light path is about 0.5-1 pixel in CCD target surface image space error, can't satisfy the quality requirement of double light path image ccd image output when synthetic.
Summary of the invention
The technical problem that the present invention will solve is the deficiency that exists to existing CCD splicing, and a kind of television pick-up equipment that adopts the double light path four CCD splicing of the synthetic adjusting mechanism of image is provided.
For solving the problems of the technologies described above; Double light path four CCD splicing television pick-up equipment provided by the invention comprises first set of lenses, second set of lenses, installation frame, turnover reflective mirror, the adjustment mechanism of containing two pairs of wedges, composite prism, the first beam split composite prism, the second beam split composite prism, first reflective mirror, second reflective mirror, a CCD, the 2nd CCD, the 3rd CCD and the 4th CCD; Said installation frame is the polymorphic structure body; Have first to the 6th lens barrel and seven lens barrel vertical that are parallel to each other on it with these lens barrels; The 7th a lens barrel side radially communicates with second lens barrel; Opposite side radially communicates with trinocular tube, the 5th lens barrel; The input of the 7th lens barrel is vertical adjacent with the output of first lens barrel; The output of the 7th lens barrel is vertical adjacent with the input of the 6th lens barrel, a side of the posterior segment of trinocular tube be provided with light hole and this light hole vertical adjacent with the input of the 4th lens barrel, the output direction of trinocular tube, the 4th lens barrel, the 5th lens barrel and the 6th lens barrel communicates; First set of lenses is identical telephotolens group with second set of lenses and is installed in respectively in first lens barrel and second lens barrel; Said adjustment mechanism is threaded in second lens barrel and is positioned at the rear end of second lens, and wherein the angle of wedge of a pair of wedge is vertical with another angle of wedge to wedge; Said turnover reflective mirror is that right-angle prism and two right-angle planes are separately fixed on vertical two the adjacent end faces with the 7th lens barrel of first lens barrel; Said composite prism is block prism and the intersection that is positioned at second lens barrel and trinocular tube; The said first beam split composite prism and the second beam split composite prism are block prism and lay respectively at trinocular tube and the posterior segment of the 7th lens barrel; Said first reflective mirror and second reflective mirror are right-angle prism; First reflective mirror is fixed on vertical two the adjacent end faces with said the 4th lens barrel of said light hole, and second reflective mirror is fixed on vertical two the adjacent end faces with said the 6th lens barrel of said the 7th lens barrel; The corresponding one by one rear end face with trinocular tube, the 4th lens barrel, the 5th lens barrel, the 6th lens barrel of first to fourth CCD is connected; Said first set of lenses gets into said composite prism to the imaging beam of target after said turnover reflective mirror reflection, light beam is after the composite prism beam split, and half luminous energy gets into the first beam split composite prism, and second half luminous energy gets into the second beam split composite prism; Second set of lenses sees through said image combination mechanism entering composite prism to the imaging beam of target, and light beam is after the composite prism beam split, and half luminous energy gets into the first beam split composite prism, and second half luminous energy gets into the second beam split composite prism; Get into second half reflection of light beam one half transmitting of the first beam split composite prism; The part of transmitted light beam is that the first quartile image of target is focused on the target surface of a CCD, and the part of folded light beam is that the second quadrantal diagram picture of target reflects post-concentration on the target surface of the 2nd CCD through first reflective mirror; Get into second half reflection of light beam one half transmitting of the second beam split composite prism; The part of transmitted light beam is that the four-quadrant diagram of target looks like to be focused on the target surface of the 3rd CCD, and the part of folded light beam is that the third quadrant image of target reflects post-concentration on the target surface of the 4th CCD through second reflective mirror.
Overall technology effect among the present invention is embodied in the following aspects.
(1) the present invention has realized the separation of four CCD installed surfaces through an image synthetic composite prism, two beam split composite prisms and two reflective mirrors, the image slitless connection when effectively having solved four CCD splicings.
(2) the present invention adopts the double light path optical system; I.e. two identical set of lenses; Wherein, the emergent light of first set of lenses through the synthetic composite prism of turnover reflective mirror, image after, its light energy is added in the emitting light path of second set of lenses; Overcome with the two-stage beam split of monochromatic light road and realized four CCD when splicing luminous energy defect of insufficient, improved the performance of four CCD splicing practical application.
(3) the present invention has adopted and has contained the synthetic adjusting mechanism of image that two groups of wedges are formed; The wedge that moves in the wedge group moves axially the image space that can change image; The one group of horizontal direction image space that can adjust the second set of lenses image in two groups of wedge groups, another group can be adjusted the vertical direction image space of the second set of lenses image.Move axially of the coincidence error requirement of the image of image that adjustment satisfies easily first set of lenses and second set of lenses through wedge, the resolution capability requirement of the composograph that CCD exported when the image that can satisfy image and second set of lenses of first set of lenses synthesized at horizontal imaging position and vertical image space.
Description of drawings
Fig. 1 is the composition sketch map of double light path four CCD splicing television pick-up equipment.
Fig. 2 is the structural representation of installation frame among the present invention.
Fig. 3 is the optical schematic diagram of double light path four CCD splicing television pick-up equipment.
Fig. 4 is the composition sketch map of adjustment mechanism among the present invention.
Fig. 5 is the structural representation of support shown in Fig. 4.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, the television pick-up equipment preferred embodiment of double light path four CCD of the present invention splicing comprise first set of lenses 1 that is used to form images and second set of lenses 1 ', installation frame 2, turnover reflective mirror 3, be used for the synthetic adjustment mechanism 4 of image, be used for composite prism 5, the first beam split composite prism 6 and the second beam split composite prism 6 that image synthesizes ', first reflective mirror 7 and second reflective mirror 7 ', first to fourth CCD8a, 8b, 8c and 8d.
According to shown in Figure 2; Installation frame 2 is the polymorphic structure body; Have first to the 7th lens barrel 2-1～2-7 on it, wherein the axis of first to the 6th lens barrel 2-1～2-6 is parallel to each other, and the 7th lens barrel 2-7 communicates and axis normal with the second lens barrel 2-2, trinocular tube 2-3, the 5th lens barrel 2-5.Have 1/4th of light hole 2-3-1 and somewhat larger in diameter light hole diameter on the sidewall of trinocular tube 2-3 stage casing in trinocular tube 2-3 stage casing; Light hole 2-3-1 is positioned at the first quartile place (eyeing right from drawing left side) in this side section, trinocular tube 2-3 stage casing and adjacent with the incident end face of the 4th lens barrel 2-4; The logical light diameter in the 7th lens barrel 2-7 posterior segment is identical with trinocular tube 2-3 stage casing light hole diameter, and the logical light diameter of the 7th lens barrel 2-7 back segment, trinocular tube 2-3 back segment, the 4th lens barrel 2-4, the 5th lens barrel 2-5 and the 6th lens barrel 2-6 is all identical with light hole 2-3-1 diameter.Trinocular tube 2-3 back segment undergauge also is positioned at the third quadrant (seeing from the lens barrel rear end face that is parallel to each other) in trinocular tube 2-3 overall diameter cross section; The 7th lens barrel 2-7 back segment undergauge also is positioned at the four-quadrant (eyeing right from drawing left side) in the 7th lens barrel 2-7 overall diameter cross section and vertical adjacent with the incident end face of the 6th lens barrel 2-6; The 5th lens barrel 2-5 is positioned at second quadrant (seeing from the lens barrel rear end face that is parallel to each other) in side section, the 7th lens barrel 2-7 posterior segment, and the light exit side direction of trinocular tube 2-3, the 4th lens barrel 2-4, the 5th lens barrel 2-5, the 6th lens barrel 2-6 is consistent.First set of lenses 1 and second set of lenses 1 ' be identical telephotolens group, first set of lenses 1 is installed among the first lens barrel 2-1, and the front end of second set of lenses 1 ' be installed in, the second lens barrel 2-2 is a light beam incident end.Adjustment mechanism 4 screw threads are connected in the rear end of the second lens barrel 2-2.Turnover reflective mirror 3 is a right-angle prism, and its two right-angle planes are bonded in respectively on two vertical adjacent end faces of the first lens barrel 2-1 and the 7th lens barrel 2-7.Composite prism 5 is the block prism of two bonding one-tenth of right-angle prism, and two right angle faces that composite prism 5 is positioned at the 7th lens barrel 2-7 and second, third lens barrel 2-2, position that 2-3 intersects and an one of which right-angle prism are bonded in respectively on the locating surface of front end face and the 7th lens barrel 2-7 of trinocular tube 2-3.The bonding block prism that becomes of two right-angle prisms of the first beam split composite prism 6 and the second beam split composite prism 6 ' be; The first beam split composite prism 6 is fixed on the posterior segment of trinocular tube 2-3, the second beam split composite prism 6 ' the be fixed on posterior segment of the 7th lens barrel 2-7.First reflective mirror 7 and second reflective mirror 7 ' be right-angle prism; Two right angle faces of first reflective mirror 7 are bonded in respectively on trinocular tube 2-3 light hole 2-3-1 and two vertical adjacent end faces of the 4th lens barrel 2-4, second reflective mirror 7 ' two right angle faces be bonded in respectively on two vertical adjacent end faces of the 7th lens barrel 2-7 and the 6th lens barrel 2-6.First to fourth CCD8a, 8b, 8c and 8d be corresponding one by one be connected on the rear end face of trinocular tube 2-3, the 4th lens barrel 2-4, the 5th lens barrel 2-5 and the 6th lens barrel 2-6 and target surface all with first set of lenses 1 and second set of lenses 1 ' focal plane overlap.
According to shown in Figure 3; Image-forming principle of the present invention is; The imaging beam of 1 pair of target of first set of lenses gets into composite prism 5 after the reflecting surface A of turnover reflective mirror 3 reflection; Light beam is after the light splitting surface B of composite prism 5 beam split, and half luminous energy gets into the first beam split composite prism 6, second half luminous energy get into the second beam split composite prism 6 '.The second set of lenses 1 ' imaging beam of target is seen through image combination mechanism 4 get into composite prisms 5, light beam is through the light splitting surface B of composite prism 5 beam split, half luminous energy gets into the first beam split composite prism 6, second half luminous energy get into the second beam split composite prism 6 '.Half luminous energy of light beam that gets into the first beam split composite prism 6 is through light splitting surface C transmission; Second half luminous energy reflects through light splitting surface C; The part of transmitted light beam is that the first quartile image of target is focused on the target surface of a CCD8a, and the part of folded light beam is that the second quadrantal diagram picture of target reflects post-concentration on the target surface of the 2nd CCD8b through the reflecting surface D of first reflective mirror 7.Get into the second beam split composite prism 6 ' half luminous energy of light beam through light splitting surface C ' transmission; Second half luminous energy is through light splitting surface C ' reflection; The part of transmitted light beam is that the four-quadrant diagram of target looks like to be focused on the target surface of the 3rd CCD8c, the part of folded light beam be target the third quadrant image through second reflective mirror 7 ' reflecting surface D ' reflection post-concentration on the target surface of the 4th CCD8d.
According to shown in Figure 4, adjustment mechanism 4 comprises that the first wedge assembly 9, the second wedge assembly 11, two adjustment volutions 10, support 14,13, two of trim rings end spiral shell 12.The composition of first, second wedge assembly 9,11 is identical and all contain fixedly a wedge and a movable wedge, and fixedly the angle of wedge of wedge and movable wedge is 1.5 °.The external screw thread of the carriage of movable wedge equates with the pitch of adjusting volution 10 and is equal to 0.5mm.According to shown in Figure 5, support 14 has the projection bar 14-2 of two symmetries on the end face of circle ring disk 14-1, and the lateral surface of projection bar 14-2 is the threaded circular cambered surface, and its excess-three face is the parallel axes of plane and medial surface and circle ring disk 14-1.First, second wedge assembly 9,11 is all coaxial to be installed between two projection bar 14-2 of support 14; Wherein, Two fixedly wedge be connected with two projection bar 14-2 respectively through the square groove on the carriage separately; The wedge angular direction of the first wedge assembly 9 is consistent with the axial direction of projection bar 14-2, and the wedge angular direction of the second wedge assembly 11 is vertical with the wedge angular direction of the first wedge assembly.Two adjustment volutions 10 are adjacent to that sky is enclosed within the outside of projection bar 14-2 and two adjustment volutions 10 are threaded with the carriage of two movable wedges respectively; Wherein, An end face of an adjustment volution is positioned on the end face of circle ring disk of bracing frame 14, and trim ring 13 is threaded with two projection bar 14-2 and an end face of trim ring 13 is adjusted volution with another and is close to.
The method of adjustment of the preferred embodiment of the present invention is following:
Before the television pick-up equipment of double light path four CCD splicing is placed on the parallel light tube that has chequer, and the output of first to fourth CCD8a～8b linked to each other with monitor through cable simultaneously.Regulate and divide two big steps to carry out.
The first step; Block earlier second set of lenses 1 ' the incident end; Only let the image of parallel light tube from 1 incident of first set of lenses; Divide following link adjustment then: the position of (1) accurate adjustment the one CCD8a makes its images displayed on monitor be positioned at the first quartile place rightly and satisfy the certain precision requirement; (2) position of accurate adjustment the 2nd CCD8b; Its two horizontal lines up and down that are presented at the monitor screen second quadrant place image are alignd with two horizontal lines up and down of first quartile image one by one, and make the right vertical line of left side vertical line and the second quadrantal diagram picture of first quartile image overlapping; (3) position of accurate adjustment the 3rd CCD8c makes its left and right sides vertical line that is presented at monitor screen four-quadrant diagram picture align one by one with the left and right sides vertical line of first quartile image, and makes the following horizontal line of last horizontal line and first quartile image of four-quadrant diagram picture overlapping; (4) position of accurate adjustment the 4th CCD8d; Its left and right sides vertical line that is presented at monitor screen third quadrant image is alignd with the left and right sides vertical line of the second quadrantal diagram picture one by one; Simultaneously; The right vertical line of third quadrant image and the left vertical line of four-quadrant diagram picture are overlapping, and the following horizontal line of the last horizontal line of third quadrant image and the second quadrantal diagram picture is overlapping.Through after the above-mentioned processing, what show on the monitor screen is exactly four complete and desirable CCD stitching images.
Second step took down blocking before second set of lenses, 1 ' input, and at this moment, the image of parallel light tube is simultaneously by first set of lenses 1, the 1 ' incident of second set of lenses.Whether the image of observing on the monitor screen has ghost image or blooming; If horizontal line ghost image or fuzzy; Then rotate the movable wedge of the first wedge assembly 9, if vertical line ghost image or fuzzy then passes through the movable wedge that volution 10 rotates the second wedge assembly 11 through volution 10.
Claims (1)
1. double light path four CCD splice television pick-up equipment; Comprise first set of lenses (1), installation frame (2), contain adjustment mechanism (4), composite prism (5), a CCD (8a), the 3rd CCD (8c) of two pairs of wedges, it is characterized in that: also comprise second set of lenses (1 '), turnover reflective mirror (3), the first beam split composite prism (6), the second beam split composite prism (6 '), first reflective mirror (7), second reflective mirror (7 '), the 2nd CCD (8b) and the 4th CCD (8d); Said installation frame (2) is the polymorphic structure body; Have first to the 6th lens barrel (2-1,2-2,2-3,2-4,2-5,2-6) that is parallel to each other and seven lens barrel (2-7) vertical on it with these lens barrels; The 7th lens barrel (2-7) side radially communicates with second lens barrel (2-2); Opposite side radially communicates with trinocular tube (2-3), the 5th lens barrel (2-5); The input of the 7th lens barrel (2-7) is vertical adjacent with the output of first lens barrel (2-1); The output of the 7th lens barrel (2-7) is vertical adjacent with the input of the 6th lens barrel (2-6), a side of the posterior segment of trinocular tube (2-3) be provided with light hole and this light hole vertical adjacent with the input of the 4th lens barrel (2-4), the output direction of trinocular tube (2-3), the 4th lens barrel (2-4), the 5th lens barrel (2-5) and the 6th lens barrel (2-6) communicates; First set of lenses (1) is identical telephotolens group with second set of lenses (1 ') and is installed in respectively in first lens barrel (2-1) and second lens barrel (2-2); Said adjustment mechanism 4 is threaded in second lens barrel (2-2) and is positioned at the rear end of second lens (1 '), and wherein the angle of wedge of a pair of wedge is vertical with another angle of wedge to wedge; Said turnover reflective mirror (3) is separately fixed on vertical two the adjacent end faces with the 7th lens barrel (2-7) of first lens barrel (2-1) for right-angle prism and two right-angle planes; Said composite prism (5) is block prism and the intersection that is positioned at second lens barrel (2-2) and trinocular tube (2-3); The said first beam split composite prism (6) and the second beam split composite prism (6 ') are block prism and lay respectively at trinocular tube (2-3) and the posterior segment of the 7th lens barrel (2-7); Said first reflective mirror (7) and second reflective mirror (7 ') are right-angle prism; First reflective mirror (7) is fixed on vertical two the adjacent end faces with said the 4th lens barrel (2-4) of said light hole (2-3-1), and second reflective mirror (7 ') is fixed on vertical two the adjacent end faces with said the 6th lens barrel (2-6) of said the 7th lens barrel (2-7); The corresponding one by one rear end face with trinocular tube (2-2), the 4th lens barrel (2-4), the 5th lens barrel (2-5), the 6th lens barrel (2-6) of first to fourth CCD (8a, 8b, 8c, 8d) is connected; Said first set of lenses (1) gets into said composite prism (5) to the imaging beam of target after said turnover reflective mirror (3) reflection; Light beam is after composite prism (5) beam split; Half luminous energy gets into the first beam split composite prism (6), and second half luminous energy gets into the second beam split composite prism (6 '); Second set of lenses (1 ') sees through said image combination mechanism (4) entering composite prism (5) to the imaging beam of target; Light beam is after composite prism (5) beam split; Half luminous energy gets into the first beam split composite prism (6), and second half luminous energy gets into the second beam split composite prism (6 '); Get into second half reflection of light beam one half transmitting of the first beam split composite prism (6); The part of transmitted light beam is that the first quartile image of target is focused on the target surface of a CCD (8a), and the part of folded light beam is that the second quadrantal diagram picture of target reflects post-concentration on the target surface of the 2nd CCD (8b) through first reflective mirror (7); Get into second half reflection of light beam one half transmitting of the second beam split composite prism (6 '); The part of transmitted light beam is that the four-quadrant diagram of target looks like to be focused on the target surface of the 3rd CCD (8c), and the part of folded light beam is that the third quadrant image of target reflects post-concentration on the target surface of CCD (8d) through second reflective mirror (7 ').
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236125.5A CN102752503B (en) | 2012-07-09 | 2012-07-09 | TV camera device with four spliced double-light-path CCDs (Charge Coupled Devices) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210236125.5A CN102752503B (en) | 2012-07-09 | 2012-07-09 | TV camera device with four spliced double-light-path CCDs (Charge Coupled Devices) |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103148839A (en) * | 2013-02-06 | 2013-06-12 | 北京空间机电研究所 | Lens light splitting mode-based focal plane splicing aerial surveying camera with extra large plane |
| CN106060354A (en) * | 2016-07-07 | 2016-10-26 | 西安应用光学研究所 | Image pick-up device with two large-format high-frame digital CCDs (Charge Coupled Device) |
| CN107846534A (en) * | 2017-09-18 | 2018-03-27 | 努比亚技术有限公司 | A kind of camera and photographic method |
| CN108398786A (en) * | 2018-03-12 | 2018-08-14 | 深圳市易瞳科技有限公司 | A kind of augmented reality display device |
| CN113630485A (en) * | 2020-05-08 | 2021-11-09 | 北京小米移动软件有限公司 | Full screen display method, full screen display device and terminal |
| WO2022231465A1 (en) * | 2021-04-28 | 2022-11-03 | Александр Иванович ГОРБАТЮК | Method for forming a digital image |
| CN115437100A (en) * | 2022-07-26 | 2022-12-06 | 中国工程物理研究院应用电子学研究所 | Laser sampling retroreflector, adjusting system and adjusting method |
| CN115576082A (en) * | 2022-12-08 | 2023-01-06 | 中国科学院西安光学精密机械研究所 | Remote large-width imaging system for extreme illumination environment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148839A (en) * | 2013-02-06 | 2013-06-12 | 北京空间机电研究所 | Lens light splitting mode-based focal plane splicing aerial surveying camera with extra large plane |
| CN106060354A (en) * | 2016-07-07 | 2016-10-26 | 西安应用光学研究所 | Image pick-up device with two large-format high-frame digital CCDs (Charge Coupled Device) |
| CN106060354B (en) * | 2016-07-07 | 2019-09-17 | 西安应用光学研究所 | A kind of high frame-rate digital CCD photographic device of double large area arrays |
| CN107846534A (en) * | 2017-09-18 | 2018-03-27 | 努比亚技术有限公司 | A kind of camera and photographic method |
| CN108398786A (en) * | 2018-03-12 | 2018-08-14 | 深圳市易瞳科技有限公司 | A kind of augmented reality display device |
| CN113630485A (en) * | 2020-05-08 | 2021-11-09 | 北京小米移动软件有限公司 | Full screen display method, full screen display device and terminal |
| WO2022231465A1 (en) * | 2021-04-28 | 2022-11-03 | Александр Иванович ГОРБАТЮК | Method for forming a digital image |
| CN115437100A (en) * | 2022-07-26 | 2022-12-06 | 中国工程物理研究院应用电子学研究所 | Laser sampling retroreflector, adjusting system and adjusting method |
| CN115576082A (en) * | 2022-12-08 | 2023-01-06 | 中国科学院西安光学精密机械研究所 | Remote large-width imaging system for extreme illumination environment |
| CN115576082B (en) * | 2022-12-08 | 2023-04-11 | 中国科学院西安光学精密机械研究所 | Remote large-breadth imaging system for extreme illumination environment |
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| CN102752503B (en) | 2014-11-05 |
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