CN101210999B - 360 degree panoramic television pick-up lens - Google Patents
360 degree panoramic television pick-up lens Download PDFInfo
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- CN101210999B CN101210999B CN2006101353754A CN200610135375A CN101210999B CN 101210999 B CN101210999 B CN 101210999B CN 2006101353754 A CN2006101353754 A CN 2006101353754A CN 200610135375 A CN200610135375 A CN 200610135375A CN 101210999 B CN101210999 B CN 101210999B
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Abstract
A perimeter 360-degree full view TV camera lens is applicable for TV monitoring cameras in assorted safety protection systems, TV meetings and plant production lines, etc. The invention is characterized in that a sub light path is placed in a prime light path. A full view image through the prime light path and a 'black round patch' image through the sub light path are simultaneously projected on the pick-up element, thereby forming an image of 'circle' perimeter full view. The prime light path comprises (1) and (2) pieces of field coverage and (3) to (10) basic wide-angle lenses. The sub light path comprises (5) to (10) pieces of the prime light paths and a small lens (11). Focus, angular magnification and image magnification of the prime light path and the sub light path are respectively expressed as f', f'magnified, f'basic, f'sub and Beta magnified, M basic, and M sub. Conditions should be met: 2.1<f' basic/f'<2.8, 0.4<|Mbasic |<0.55; -22<f' basic /f'<-1.8, 2.1<Beta magnified<3; 1.9<d4/ f'<2.2, 0.85<(d8+d9+d10/n10+d11)/f'<1.2, d18=d20+d21, l' sub=l', 0.8<|M sub | <1.1.
Description
Technical field:
The present invention relates to optical camera lens device, be applicable to safety-security areas such as square, bulk storage plant, market, airport, traffic administration, also can be used for video conference, plant produced line etc. need spend the occasion of carrying out timing monitoring and observation to circumference 360.
Prior art:
For overcome adopt many television cameras or with fire ball television camera that can 360 degree high speed rotating to circumference 360 degree carry out that comprehensive timing monitoring exists expensive, be difficult to defective such as in good time panorama sampling, the scheme with single bugeye lens video camera is assisted and computer image treatment is carried out pan-shot has been proposed.Existing technical scheme is to carry out Flame Image Process to taken panoramic picture on CCD or CMOS picture pick-up device through supporting computer software, on display screen, is launched into the plane panoramic picture of undistorted (distortion obtains proofreading and correct).For the convenience on the Flame Image Process, common optical technology is that the light beam of a certain scope in the dead ahead of camera lens is not formed images at imaging surface, promptly forms the circumference panorama pattern of " annular " of band " black Dapple " at the picture pick-up device center section.Existing way is to utilize coaxial double mirror can have the principle of blocking light action to realize forming the circumference panorama sketch of " annular " to the scenery in its dead ahead; But this way one-piece construction is big; Principal reflection mirror adopts aspheric surface mostly, and the dress school is capacity not also, and cost of manufacture is higher; Another kind of way is to adopt the electronic technology method; Through special dedicated video cameras such as electron scanning processing, make picture pick-up device form " black circle spot " position at needs and do not scan, can realize that also a bugeye lens panorama sketch changes the circumference panorama sketch of " annular " into.This method can not be widely used on the TV camera commonly used obviously.
Summary of the invention:
The objective of the invention is to overcome the deficiency of said method; Through the ultra wide-angle of miniaturization and the built-in secondary light path of exploitation, be incident upon the surface of picture pick-up device, the circumference panorama sketch of formation " annular " to " black Dapple " on circumference panorama thing and the special graticule simultaneously; Easy to implement the method; Camera lens adaptability is strong, and cost performance is high, miniaturization.
The present invention program: contrive equipment is that main optical path and built-in secondary light path are formed by the ultra wide-angle imaging camera lens that the visual field reaches 180 degree.
A kind of circumference 360 degree panoramic television pick-up lenss, it comprises ten a slice eyeglasses, ten a slice eyeglasses are placed successively: first eyeglass is the convex-concave negative lens; Second eyeglass is double-concave negative lens, and the 3rd eyeglass is the convex-concave negative lens, and the 4th eyeglass is the biconvex positive lens; The 5th eyeglass is graticule, and the 6th eyeglass is the biconvex positive lens, and the 7th eyeglass is the convex-concave negative lens; The 8th eyeglass is the biconvex positive lens; The 9th eyeglass is the convex-concave positive lens, and the tenth eyeglass is lenslet, and the tenth a slice eyeglass is a parallel flat;
Wherein first to the 9th eyeglass and the tenth a slice eyeglass constitute main optical path; Establish the light hurdle between the 4th eyeglass and the 5th eyeglass; First eyeglass and second eyeglass are formed the visual field and are expanded the bundle part, and the 3rd to the 9th eyeglass and the tenth a slice eyeglass are formed basic wide-angle part, respectively with f '
ExpandThe expression visual field expands the complex focus of bundle part, with f '
BaseRepresent the complex focus of basic wide-angle part, with β
ExpandThe expression visual field expands the angular magnification of bundle part, with M
BaseRepresent the image magnification of basic wide-angle part, with the complex focus of f ' expression main optical path, with 1 ' represent picture side's intercept (being the optics rear cut-off distance) of main optical path;
Wherein the 5th to the tenth a slice eyeglass constitutes built-in secondary light path, respectively with f '
SecondaryThe complex focus of vice light path, with 1 '
SecondaryPicture side's intercept of vice light path (being the optics rear cut-off distance), with M
SecondaryThe image magnification of vice light path; d
4Represent the airspace between three eyeglasses of second eyeglass to the, d
8Represent that the 4th eyeglass is to the airspace between the light hurdle, d
9Airspace between five eyeglasses in expression light hurdle to the, d
10The thickness of representing the 5th eyeglass, d
11Represent the airspace between six eyeglasses of the 5th eyeglass to the, d
18Represent the 9th airspace between eyeglass to the ten a slice eyeglasses, d
20Represent the airspace between ten eyeglasses of the 9th eyeglass to the, d
21The thickness of representing the tenth eyeglass; n
1What represent is the refractive index of first eyeglass, n
2What represent is the refractive index of second eyeglass, n
3What represent is the refractive index of the 3rd eyeglass, n
5What represent is the refractive index of the 5th eyeglass; v
1The Abbe coefficient of the glass material of first eyeglass of expression, v
2The Abbe coefficient of the glass material of second eyeglass of expression, v
3The Abbe coefficient of representing the glass material of the 3rd eyeglass, v
6The Abbe coefficient of representing the glass material of the 6th eyeglass, v
8The Abbe coefficient of representing the glass material of the 8th eyeglass, v
9The Abbe coefficient of representing the glass material of the 9th eyeglass;
The condition that this pick-up lens need satisfy is following:
2.1＜f '
Base/ f '＜2.8,0.4＜| M
Base|＜0.55; (1)
-2.2＜f '
Expand/ f '＜-1.8,2.1＜β
Expand＜3; (2)
1.9＜d
4/f′＜2.2；…………………………(3)
0.85＜(d
8+d
9+d
10/n
5+d
11)/f′＜1.2；………………(4)
1.58＜n
1＜1.65，1.58＜n
2＜1.65，1.58＜n
3＜1.65，
v
1＞60，v
2＞60，v
3＞60，v
6＞70，v
8＞70，v
9＞70；………(5)
d
18=d
20+ d
21, 1 '
Secondary=1 '; (6)
0.8＜| M
Secondary|＜1.1.
The optical material that constitutes ten eyeglasses of main optical path is ZK in proper order
9, ZK
9, ZK
9, ZF
7, K
9, QK
3, ZF
7, QK
3, QK
3And K
9Wherein the 5th eyeglass is the graticule that band " is deceived Dapple ", and the 7th eyeglass and the 8th eyeglass constitute the gummed group.
The 5th eyeglass is graticule, and this sheet can place before or after the light hurdle, and " the black Dapple " on it can place front surface or surface, back by design.The tenth eyeglass is lenslet, it can with the tenth a slice eyeglass gummed, also can constitute the gummed group with the 9th eyeglass, " black Dapple " through secondary light path projection imaging on the imaging surface of picture pick-up device.
The invention has the advantages that:
The scenery enforcement conduct monitoring at all levels that just can in good time spend circumference 360 continuously with adaptive independent video camera of circumference of the present invention 360 degree full shots and supporting image processing software.Owing to adopt built-in secondary light path; Project to " the black Dapple " on the graticule scheme of imaging surface; Solved the requirement of circumference 360 degree panorama patterns " annular " changes that make on the picture pick-up device simply and effectively, provided convenience for computer image treatment software is launched into circumference 360 degree panorama sketchs in undistorted plane to the panorama pattern.The introducing of secondary light path does not influence the optical texture of main optical path and chooses aberration performance and outward appearance.Like this, can be optimized design to main optical path separately.Camera lens provided by the invention adopts global face structure and cheap optical material, has developed field of view angle and has reached 180 degree, has the external form of high explanation degree, high definition performance and miniaturization, and its cost performance is higher simultaneously, and adaptability is wider.
Description of drawings:
Fig. 1 is the principle schematic of circumference 360 degree panoramic shootings.Wherein the A in (a) representes pick-up lens, and B is the pick-up lens imaging surface, and α is the field angle of object that " black circle spot " correspondence is blocked, generally between 10 °～20 °.(b) on picture pick-up device, form " annular " signal panorama sketch.(c) be the undistorted panorama floor map of after the computer picture software processes, launching.
Fig. 2 is the optical texture synoptic diagram of the panoramic shooting camera lens of instance of the present invention.Wherein R representes the radius-of-curvature of each lens surface, and d is the thickness of lens or the airspace between lens, 1 ' be picture side's rear cut-off distance of camera lens.
Fig. 3 is various aberrations, Illumination Distribution and the MTF curve map of main optical path optical system in the instance.The horizontal ordinate unit of spherical aberration and curvature of field curve is mm; The horizontal ordinate unit of MTF curve map: line is right/mm, the horizontal ordinate unit of ratio chromatism, is a micron, and characteristic maximum ordinate unit be ± 20 microns, and the horizontal ordinate of relative exposure transmitance be " degree ", and the relative horizontal ordinate that distorts is " number percent ".
Fig. 4 is the MTF curve map that this instance adopts little eyeglass 11 and the secondary light path scheme of parallel flat 10 gummeds, the horizontal ordinate unit of MTF curve map: line is right/and mm.
Fig. 5 is the MTF curve map that this instance adopts the secondary light path scheme of little eyeglass 11 and lens 9 gummeds.The horizontal ordinate unit of MTF curve: line is right/mm.
Embodiment:
A kind of circumference 360 degree panoramic television pick-up lenss, it is characterized in that: it comprises ten a slice eyeglasses, ten a slice eyeglasses are placed successively: first eyeglass is convex-concave negative lens 1; Second eyeglass is that 2, the three eyeglasses of double-concave negative lens are that 3, the four eyeglasses of convex-concave negative lens are biconvex positive lens 4; The 5th eyeglass is that 5, the six eyeglasses of graticule are that 6, the seven eyeglasses of biconvex positive lens are convex-concave negative lens 7; The 8th eyeglass is biconvex positive lens 8; The 9th eyeglass is that 9, the ten eyeglasses of convex-concave positive lens are that lenslet 11, the ten a slice eyeglasses are parallel flat 10;
Wherein first to the 9th eyeglass 1-9 and the tenth a slice eyeglass 11 constitute main optical paths; Establish the light hurdle between the 4th eyeglass 4 and the 5th eyeglass 5; The bundle part is expanded in first eyeglass 1 and second eyeglass 2 composition visual field; The the 3rd to the 9th eyeglass 3-9 and the tenth a slice eyeglass 11 are formed basic wide-angle part, respectively with f '
ExpandThe expression visual field expands the complex focus of bundle part, with f '
BaseRepresent the complex focus of basic wide-angle part, with β
ExpandThe expression visual field expands the angular magnification of bundle part, with M
BaseRepresent the image magnification of basic wide-angle part, with the complex focus of f ' expression main optical path, with 1 ' represent picture side's intercept of main optical path;
Wherein the 5th to the tenth a slice eyeglass 5-11 constitutes built-in secondary light path, respectively with f '
SecondaryThe complex focus of vice light path, with 1 '
SecondaryPicture side's intercept of vice light path, with M
SecondaryThe image magnification of vice light path; d
4Represent that second eyeglass 2 is to the airspace between the 3rd eyeglass 3, d
8Represent that the 4th eyeglass 4 is to the airspace between the light hurdle, d
9Airspace between five eyeglasses 5 in expression light hurdle to the, d
10The thickness of representing the 5th eyeglass 5, d
11Represent that the 5th eyeglass 5 is to the airspace between the 6th eyeglass 6, d
18Represent the 9th airspace between eyeglass 9 to the tenth a slice eyeglasses 10, d
20Represent that the 9th eyeglass 9 is to the airspace between the tenth eyeglass 11, d
21The thickness of representing the tenth eyeglass 11; n
1What represent is the refractive index of first eyeglass 1, n
2What represent is the refractive index of second eyeglass 2, n
3What represent is the refractive index of the 3rd eyeglass 3, n
5What represent is the refractive index of the 5th eyeglass 5; v
1The Abbe coefficient of the glass material of first eyeglass 1 of expression, v
2The Abbe coefficient of the glass material of second eyeglass 2 of expression, v
3The Abbe coefficient of representing the glass material of the 3rd eyeglass 3, v
6The Abbe coefficient of representing the glass material of the 6th eyeglass 6, v
8The Abbe coefficient of representing the glass material of the 8th eyeglass 8, v
9The Abbe coefficient of representing the glass material of the 9th eyeglass 9;
The condition that this pick-up lens need satisfy is following:
2.1＜f '
Base/ f '＜2.8,0.4＜| M
Base|＜0.55; (1)
-2.2＜f '
Expand/ f '＜-1.8,2.1＜β
Expand＜3; (2)
1.9＜d
4/f′＜2.2；…………………………(3)
0.85＜(d
8+d
9+d
10/n
5+d
11)/f′＜1.2；……………(4)
1.58＜n
1＜1.65，1.58＜n
2＜1.65，1.58＜n
3＜1.65，
v
1＞60，v
2＞60，v
3＞60，v
6＞70，v
8＞70，v
9＞70；…………(5)
d
18=d
20+ d
21, 1 '
Secondary=1 '; (6)
0.8＜| M
Secondary|＜1.1.
Shared six eyeglasses of main optical path and secondary light path.The front surface that secondary optical routing is located near the 5th eyeglass 5 the light hurdle is a dividing plane, projects to " the black Dapple " of graticule (i.e. the 5th eyeglass 5) on the image planes through the 6th eyeglass 6 to the tenth a slice eyeglasses 11.
Setting the above-mentioned purpose that must satisfy is:
The purpose that condition (1) is set is that to guarantee that axle that basic wide-angle lens part is born is gone up total drift angle of light beam not too large, is beneficial to reduce the senior aberration of a last light beam and picture side's rear cut-off distance of growth main optical path.The angular magnification of bundle part is expanded in the visual field of also favourable minimizing simultaneously.
The setting of condition (2) is relevant with the basic wide-angle lens condition of preceding establishing, and the size that limits it helps the correction of off-axis aberration.
Aberration correction is perfect not to be set the purpose of condition (3) for balanced growth picture side intercept does not influence again.d
4Short, can increase picture side's intercept, but also increase the upward drift angle amount of light beam of axle relatively, be unfavorable for the correction of aberration; Otherwise effect is opposite.
The purpose that condition (4) is set is to make the light hurdle as far as possible near the front focus of the optics combination of a side behind the light hurdle, makes emergent pupil tend to the heart far away, goes up the difference with outer illumination of axle and resolution distribution to reduce axle.
The purpose that condition (5) is set is the ratio chromatism, of spherochromatism and axle outward appearance on the axis calibration.
The purpose that condition (6) is set is to guarantee that " black Dapple " on the graticule can accurately be imaged on the imaging surface of picture pick-up device.
The purpose that condition (7) is set be projection image for control " black Dapple " in panorama pattern magnitude proportion, be beneficial to reduce the ratio that light beam blocks light on the main optical path axle, also help the making of graticule " black Dapple ".
The principal character of apparatus of the present invention is: be projected in " black Dapple " on the graticule on the imaging surface through built-in secondary light path; Solve the requirement of circumference 360 degree panorama patterns " annular " changes that make picture pick-up device simply and effectively, made things convenient for computer image treatment software to become undistorted plane circumference panorama sketch to panorama expanding.Its introducing does not influence the design of main optical path optical texture, and aberration performance and outward appearance make main optical path optimal design separately.The bugeye lens that the visual field of the high resolution that this programme is developed, high-performance, high performance-price ratio is 180 ° has adopted global face structure and cheap optical material.
Table 1 is main optical path embodiment data of the present invention.
E.F.L=1, F
NO=2.1,2 ω=180 °, colour killing spectral line: d (F.C),
Table 2 is data of the secondary light path scheme (1) of instance of the present invention:
E.F.L=1.589281, Fno=1.4, M
Secondary=-0.94658
Object height; 2 η=0.174289, colour killing spectral line: d (F.C)
E.F.L=f '
Secondary/ f '
Table 3 is data of the secondary light path scheme (2) of instance of the present invention:
E.F.L=1.619061, F
NO=1.5, M
Secondary=-0.871070
Object height; 2 η=0.162797, colour killing spectral line: d (F.C)
E.F.L=f '
Secondary/ f '.
Claims (2)
1. a circumference 360 is spent the panoramic television pick-up lenss, and it is characterized in that: it comprises ten a slice eyeglasses, and ten a slice eyeglasses are placed successively: first eyeglass is convex-concave negative lens (1); Second eyeglass is double-concave negative lens (2), and the 3rd eyeglass is convex-concave negative lens (3), and the 4th eyeglass is biconvex positive lens (4); The 5th eyeglass is graticule (5), and the 6th eyeglass is biconvex positive lens (6), and the 7th eyeglass is convex-concave negative lens (7); The 8th eyeglass is biconvex positive lens (8); The 9th eyeglass is convex-concave positive lens (9), and the tenth eyeglass is lenslet (11), and the tenth a slice eyeglass is parallel flat (10);
Wherein first to the 9th eyeglass (1-9) and the tenth a slice eyeglass (11) constitute main optical path; Establish the light hurdle between the 4th eyeglass (4) and the 5th eyeglass (5); First eyeglass (1) and second eyeglass (2) are formed the visual field and are expanded the bundle part; The the 3rd to the 9th eyeglass (3-9) and the tenth a slice eyeglass (11) are formed basic wide-angle part, respectively with f '
ExpandThe expression visual field expands the complex focus of bundle part, with f '
BaseRepresent the complex focus of basic wide-angle part, with β
ExpandThe expression visual field expands the angular magnification of bundle part, with M
BaseRepresent the image magnification of basic wide-angle part, with the complex focus of f ' expression main optical path, with 1 ' represent picture side's intercept of main optical path;
Wherein the 5th to the tenth a slice eyeglass (5-11) constitutes built-in secondary light path, respectively with f '
SecondaryThe complex focus of vice light path, with 1 '
SecondaryPicture side's intercept of vice light path, with M
SecondaryThe image magnification of vice light path; d
4Represent that second eyeglass (2) is to the airspace between the 3rd eyeglass (3), d
8Represent that the 4th eyeglass (4) is to the airspace between the light hurdle, d
9Airspace between expression light five eyeglasses in hurdle to the (5), d
10The thickness of representing the 5th eyeglass (5), d
11Represent that the 5th eyeglass (5) is to the airspace between the 6th eyeglass (6), d
18Represent that the 9th eyeglass (9) is to the airspace between the tenth a slice eyeglass (10), d
20Represent that the 9th eyeglass (9) is to the airspace between the tenth eyeglass (11), d
21The thickness of representing the tenth eyeglass (11); n
1What represent is the refractive index of first eyeglass (1), n
2What represent is the refractive index of second eyeglass (2), n
3What represent is the refractive index of the 3rd eyeglass (3), n
5What represent is the refractive index of the 5th eyeglass (5); v
1The Abbe coefficient of representing the glass material of first eyeglass (1), v
2The Abbe coefficient of representing the glass material of second eyeglass (2), v
3The Abbe coefficient of representing the glass material of the 3rd eyeglass (3), v
6The Abbe coefficient of representing the glass material of the 6th eyeglass (6), v
8The Abbe coefficient of representing the glass material of the 8th eyeglass (8), v
9The Abbe coefficient of representing the glass material of the 9th eyeglass (9);
The condition that this pick-up lens need satisfy is following:
2.1＜f '
Base/ f '＜2.8,0.4＜| M
Base|＜0.55; (1)
-2.2＜f '
Expand/ f '＜-1.8,2.1＜β
Expand＜3; (2)
1.9＜d
4/f′＜2.2；…………………………(3)
0.85＜(d
8+d
9+d
10/n
5+d
11)/f′＜1.2；………………(4)
1.58＜n
1＜1.65，1.58＜n
2＜1.65，1.58＜n
3＜1.65，
v
1＞60，v
2＞60，v
3＞60，v
6＞70，v
8＞70，v
9＞70；………………(5)
d
18=d
20+ d
21, 1 '
Secondary=1 '; (6)
0.8＜| M
Secondary|＜1.1.
2. circumference 360 degree panoramic television pick-up lenss according to claim 1; It is characterized in that: project to " black Dapple " on the graticule (5) on the imaging surface through built-in secondary light path; The circumference 360 that forms " annular " at picture pick-up device is spent panorama sketchs, and pick-up lens adopts global face structure and optical material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101353754A CN101210999B (en) | 2006-12-26 | 2006-12-26 | 360 degree panoramic television pick-up lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101353754A CN101210999B (en) | 2006-12-26 | 2006-12-26 | 360 degree panoramic television pick-up lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101210999A CN101210999A (en) | 2008-07-02 |
| CN101210999B true CN101210999B (en) | 2012-05-23 |
Family
ID=39611147
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101353754A Expired - Fee Related CN101210999B (en) | 2006-12-26 | 2006-12-26 | 360 degree panoramic television pick-up lens |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501421A (en) * | 2013-08-23 | 2014-01-08 | 浙江工业大学 | Bamboo chopstick japanning assembly line centralized monitoring method and method based on panoramic vision and device |
| CN103713457A (en) * | 2013-12-12 | 2014-04-09 | 浙江大学 | Geometrical correction device and method for 360-degree annular screen multi-projection system |
| CN104007535B (en) * | 2014-06-10 | 2016-10-05 | 舜宇光学(中山)有限公司 | A kind of novel bugeye lens |
| CN105607234B (en) * | 2016-01-07 | 2017-12-22 | 东莞市宇瞳光学科技股份有限公司 | A kind of fish eye lens |
| CN111965790B (en) * | 2020-09-04 | 2022-07-22 | 深圳市道通智能航空技术股份有限公司 | Camera lens and unmanned aerial vehicle |
| CN113031217B (en) * | 2021-03-24 | 2021-09-10 | 江西联创电子有限公司 | Wide-angle lens and panoramic camera system |
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2006
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| CN101210999A (en) | 2008-07-02 |
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