WO2017107909A1 - Objectif optique panoramique et dispositif de capture d'image - Google Patents

Objectif optique panoramique et dispositif de capture d'image Download PDF

Info

Publication number
WO2017107909A1
WO2017107909A1 PCT/CN2016/111238 CN2016111238W WO2017107909A1 WO 2017107909 A1 WO2017107909 A1 WO 2017107909A1 CN 2016111238 W CN2016111238 W CN 2016111238W WO 2017107909 A1 WO2017107909 A1 WO 2017107909A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
module
communication
group
panoramic
Prior art date
Application number
PCT/CN2016/111238
Other languages
English (en)
Chinese (zh)
Inventor
胡笑平
蒋国銮
Original Assignee
博立码杰通讯(深圳)有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 博立码杰通讯(深圳)有限公司 filed Critical 博立码杰通讯(深圳)有限公司
Publication of WO2017107909A1 publication Critical patent/WO2017107909A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe

Definitions

  • the present invention relates to the field of image technologies, and in particular, to a panoramic optical lens and a corresponding panoramic image capturing device.
  • a device capable of acquiring an image of an annular area around 360 degrees is generally referred to as a panoramic image capturing device.
  • a panoramic image capturing device With the development of digital imaging technology, especially the increasing number of pixels and image processing capabilities, the use of panoramic image acquisition devices is becoming more and more common.
  • panoramic image technologies include the following:
  • a fisheye lens is mounted on the front end of the photosensitive device, and the super wide angle is used for panoramic imaging. Since the fisheye lens has a large field curvature and a low resolution, it is difficult to obtain a high quality image restoration effect.
  • One of the inventors of the present invention has proposed a panoramic image capturing device using a catadioptric lens group in the Chinese Patent Application No. 2015- 183, 183, 8.5, entitled "Panoramic Image Acquisition Device”. On this basis, it is still necessary to develop improvements that are more practical.
  • a panoramic optical lens includes: a catadioptric lens group and a first lens lens group.
  • the catadioptric lens group comprises a first lens having a negative diopter and a folding mirror having a positive diopter, the first lens being disposed in front of the folding mirror in a direction in which the light is incident, the front surface of the first lens and the front of the folding mirror
  • the shape of the surface is adapted, and the rear surface of the folding mirror is a reflecting surface;
  • the first lens lens group includes at least one lens disposed on the optical path behind the folding reflection lens group.
  • a panoramic image capture device comprising a panoramic optical lens and a first image capture module in accordance with the present invention.
  • the first image capturing module includes a first photosensitive device and a peripheral configuration module.
  • the first photosensitive device is configured to sense light concentrated by the panoramic optical lens, and the peripheral configuration module is configured to at least supply power to and interact with the first photosensitive device.
  • the panoramic image capturing device preferably further includes a second lens lens group and a second image capturing module disposed opposite to the first photosensitive device to capture the panoramic optical lens blocked by the first image capturing module. The image of the area.
  • the panoramic optical lens of the present invention a combination of a combination of refraction and reflection is used to collect incident light.
  • the light is concentrated once before reflection, and then concentrated again after reflection, which can not only multiply the convergence.
  • the effect helps to obtain clear images and makes the device design more compact.
  • the combination of two lenses with positive and negative diopter forms a catadioptric lens, which makes it easier to optically design the lens, and achieves superior processing with simple processing. Performance.
  • the panoramic image capturing device preferably adopts a method of integrating two image capturing modules, so that there is no blind spot in the area of almost half of the spherical surface.
  • FIG. 1 is a schematic structural view of a panoramic optical lens according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural view of a panoramic optical lens according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic diagram of a panoramic image capturing device according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic diagram of a panoramic image capturing device according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic view of an angle of view of a device in Embodiment 4.
  • One embodiment of a panoramic optical lens according to the present invention may include a catadioptric lens group 110 and a first lens lens group 120 with reference to FIG.
  • the catadioptric lens group 110 includes a first lens 111 having a negative diopter and a folding mirror 112 having a positive diopter 112.
  • the first lens is disposed in front of the deflecting mirror in the direction in which the light is incident.
  • the first lens lens group 120 includes at least one lens disposed on an optical path behind the group of the catadioptric lens. Since the catadioptric lens group is mainly used for collecting light, and the first lens lens group is mainly used for imaging, the size of the lens in the catadioptric lens group can be much larger than the size of the lens in the first lens lens group, for example, the former can It is about twice or more than the latter.
  • the design of the first lens group can refer to the characteristics of a typical imaging lens. The design parameters of each lens can be specifically determined according to the needs of the application scenario.
  • the first lens lens group is composed of six lenses, and the second lens 121 with negative diopter, the third lens 122 with positive diopter, and the fourth lens with negative diopter are sequentially arranged in the order of the optical path. 123.
  • This combination makes the optical design of each lens easy to implement, for example, the refractive index of the material of all lenses in the entire panoramic optical lens can be designed to be no more than 1.9.
  • the first lens lens group may also include more or fewer lenses, for example, typically may include 2 to 8 lenses.
  • front surface and “rear surface” are used to describe two surfaces of an optical lens that are opposite to each other along the optical axis direction, wherein the surface through which the incident light passes is referred to as the front surface, and the surface after the passing surface is referred to as the front surface. For the back surface.
  • the incident light passes through the surface other than the reflecting surface twice, and the "front surface” and “back surface” are defined in the order in which the incident light passes through the first pass.
  • the rear surface of the first lens 111 is adapted to the shape of the front surface of the folding mirror 112 so that the two lenses can be closely fitted.
  • the rear surface of the first lens and the front surface of the deflecting mirror can be glued together to form a cemented lens, which is not only simple to process but also superior in performance.
  • the first lens and the deflecting mirror may not be glued according to the needs of the optical design.
  • the rear surface 1121 of the folding mirror 112 is a reflecting surface.
  • the reflecting surface can be formed by, for example, plating or coating.
  • the front surface of the first lens is a concave surface
  • the rear surface is a concave surface
  • the front surface of the folding mirror is a convex surface
  • the rear surface is a concave surface and is plated with a reflective film.
  • the front surface of the first lens may be convex, concave or planar
  • the front surface of the first lens and the rear surface of the mirror i.e., the reflecting surface
  • z cr 2 /(l+V(l-(l+k)c 2 r 2 ))+a 2 +a 2 r 4 +a 3 r 6 +a ⁇ 8 +a 5 r 10 +. ..
  • z is the axial value in the direction perpendicular to the optical axis starting from the intersection of each aspherical surface and the optical axis
  • k is a quadric surface coefficient
  • c is the central curvature of the lens surface
  • r is a lens
  • the height of the surface, ai , a 2 , a 3 , a 4 , a 5 ... is an aspheric coefficient.
  • the entire optical system has small astigmatism and the imaging chromatic aberration is relatively uniform, has excellent imaging quality, and on the other hand makes the entire optical system have low complexity. Degree and processing sensitivity, effectively reducing overall costs.
  • the rear surface (i.e., the reflecting surface) of the folding mirror is designed to be aspherical, and the front surface of the folding mirror and the front and rear surfaces of the other lenses are spherical.
  • the plane can be regarded as a spherical surface with a radius of curvature of infinity, the so-called spherical surface also includes a plane.
  • the aperture of the panoramic optical lens is disposed at the position of the third lens 122.
  • the position of the third lens or the fourth lens is an optimum position for setting the aperture, and the optical aperture design can design the entrance pupil (STO) of the entire optical system.
  • the present embodiment and other panoramic optical lenses according to embodiments of the present invention may further have one or more of the following features:
  • At least one of the first lens lens groups is movable along the optical axis such that the entire panoramic optical lens is formed as an autofocus lens
  • the driving device for moving the lens along the optical axis may be selected from the group consisting of: a stepping motor, a polyhedral ultrasonic motor, Disc electromagnetic motor and voice coil motor;
  • the catadioptric lens group can be supported on the mounting frame of the first lens lens group through a transparent protective cover, so that the lens structure is more stable and the light is not obstructed, and the shape of the protective cover can be, for example, a spherical shape. Cylindrical, conical, or other rotationally symmetrical shape.
  • the panoramic optical lens of the present embodiment can have an angle of view of 30° to 170°, and has higher imaging quality than a conventional fisheye lens, and is suitable for use as a lens of a surveillance camera, a car camera, and the like.
  • FIG. 2 Another embodiment of a panoramic optical lens according to the present invention may refer to FIG. 2, including a catadioptric lens group 2
  • the catadioptric lens group 210 includes a first lens 211 having a negative diopter and The diopter is a positive folding mirror 212, and the back surface 2121 of the folding mirror is a reflecting surface; the first lens lens group is composed of six lenses, and the second lens 221 having a negative diopter is sequentially in the order of the optical path, and the diopter is positive.
  • the third lens 222 is a fourth lens 223 having a negative diopter, a fifth lens 224 having a positive diopter, a sixth lens 225 having a positive diopter, and a seventh lens 226 having a negative refracting power. Therefore, various descriptions in Embodiment 1 are applicable to the present embodiment, as not clearly indicated.
  • This embodiment is different from Embodiment 1 in that the front surface of the first lens 211 is a flat surface.
  • the rear surface 2121 (reflecting surface) of the folding mirror 212 is provided, which is used for correcting the aberration and dispersion of the entire system, the front surface of the folding mirror, and other lenses. Both the front and back surfaces are spherical.
  • This embodiment also has the advantages of high image quality and low processing difficulty as compared with the embodiment 1. However, based on the foregoing differences, although the respective lenses in this embodiment have similar positive and negative characteristics as in Embodiment 1, the specific optical design parameters may be different.
  • FIG. 3 One embodiment of a panoramic image capture device in accordance with the present invention can be seen in FIG. 3, including a panoramic optical lens and a first image capture module 330.
  • the panoramic optical lens may adopt various implementations according to the present invention, for example, using the structure described in Embodiment 1 or 2, including the catadioptric lens group 310 and the first lens lens group 320, and the internal structure will not be described again. .
  • the first lens lens group 320 is an autofocus lens group, that is, at least one of the lenses 327 can move along the optical axis, and the position of the lens 327 shown in FIG. 3 is only schematic. It may actually be any one of the first lens group.
  • the autofocusing may be a driving method of a conventional voice coil motor or a stepping motor, or a driving method of a polyhedron ultrasonic motor, a disk electromagnetic motor or the like which has been proposed by one of the inventors of the present invention.
  • the baffle lens group 310 is supported on the mounting frame of the first lens lens group by a transparent protective cover 313. In this embodiment, it is supported on the first image capturing module 330.
  • the first image capturing module 330 includes a first photosensitive device 331 and a peripheral configuration module 332.
  • the first sensing device is configured to sense light concentrated by the panoramic optical lens
  • the peripheral configuration module is at least used to supply power to and interact with the first photosensitive device.
  • one or more of the following modules can be included:
  • a power module comprising a charging module and a power storage module, wherein the power storage module is a rechargeable battery or a super capacitor, and the charging module can adopt a wireless charging mode;
  • a system control module configured to control operation of the entire device;
  • an image processing module configured to convert a wafer-shaped image collected by the photosensitive device into a cylindrical image
  • a data storage module configured to store data
  • the communication module includes a wired or wireless communication module, wherein the communication mode of the wired communication module may be selected from the group consisting of Ethernet communication, analog signal communication, ADSL communication, and USB communication, and the communication mode of the wireless communication module may be selected from WiFi communication, 3G. /4G wireless communication, Bluetooth communication, infrared communication, WiMax communication;
  • a lighting module configured to provide illumination for an area of image acquisition.
  • Various peripheral configuration modules may be integrated on the circuit board together with the first photosensitive device, not shown in the drawings.
  • the power module of the device adopts wireless charging mode
  • the communication module adopts wireless communication mode
  • FIG. 4 Another embodiment of the panoramic image capture device according to the present invention can be referred to FIG. 4. This embodiment is an improvement on the basis of Embodiment 3.
  • the second lens lens group 440 and the second image capturing module 450 are further included.
  • the second lens lens group 440 includes at least one lens for concentrating light from the back surface of the first photosensitive device 331.
  • the second lens group also employs an autofocus lens, i.e., has at least one lens 441 movable along the optical axis.
  • the second lens lens group may also employ a fixed focus lens if the image quality is not critical.
  • the second image capturing module 450 includes a second photosensitive device 451 disposed in a direction away from the first photosensitive device 331 for sensing light concentrated by the second lens group.
  • the second photosensitive device is disposed back to back on the back side of the first photosensitive device, and shares a peripheral configuration module with the first image capturing module, such as a power module, a system control module, and image processing. Modules, data storage modules, communication modules, and lighting modules. This back-to-back mounting makes the unit compact and easy to install.
  • the sharing of modules also greatly reduces the cost of the device.
  • the second image acquisition module may also have an independent peripheral configuration module, or only share a partial peripheral configuration module with the first image acquisition module.
  • the use of the second lens lens group and the second image capturing module can effectively reduce the blind spot of the image capturing device.
  • Figure 5 there is shown the field of view of the image capture device of the present embodiment.
  • ⁇ 1 panoramic optics
  • ⁇ 2 is the blind zone formed by the first image acquisition module 330 at the center of the field of view of the panoramic optical lens.
  • ⁇ 3 is the angle of view of the second lens group, and its presence causes the blind zone ⁇ 2 to be effectively reduced.
  • ⁇ 3 is designed to be not less than ⁇ 2
  • the blind zone that is invisible to the first image capturing module can be completely covered by the visible area of the second image capturing module, thereby The entire image capture device has no blind spots in the range of nearly half of the sphere.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)
  • Lenses (AREA)

Abstract

La présente invention a trait à un objectif optique panoramique et à un dispositif de capture d'image. L'objectif comprend un ensemble à lentille de réfraction/réfléchissante (110), et un ensemble à lentilles de transmission (120). L'ensemble à lentille de réfraction/réfléchissante (110) inclut une lentille (111) dont la dioptrie est négative, et une lentille de réfraction/réfléchissante (112) dont la dioptrie est positive. La forme de la surface arrière de la lentille (111) correspond à celle de la surface avant de la lentille de réfraction/réfléchissante (112). La surface arrière (1121) de ladite lentille de réfraction/réfléchissante (112) est une surface réfléchissante. L'ensemble à lentilles de transmission (120) est disposé sur un chemin optique derrière l'ensemble à lentille de réfraction/réfléchissante (110). Puisque cet ensemble à lentille de réfraction/réfléchissante (110) combinant la réfraction et la réflexion est utilisé pour capturer une lumière incidente, non seulement les effets de convergence augmentent exponentiellement, mais la conception du dispositif est aussi rendue plus compacte. De plus, la combinaison des deux lentilles dont les dioptries sont respectivement positive et négative sert à former la lentille de réfraction/réfléchissante (110), la conception optique de la lentille est encore plus facile, et de grandes performances sont obtenues par un traitement simple.
PCT/CN2016/111238 2015-12-22 2016-12-21 Objectif optique panoramique et dispositif de capture d'image WO2017107909A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510974019.0A CN106908935B (zh) 2015-12-22 2015-12-22 全景光学镜头及影像采集装置
CN201510974019.0 2015-12-22

Publications (1)

Publication Number Publication Date
WO2017107909A1 true WO2017107909A1 (fr) 2017-06-29

Family

ID=59089047

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/111238 WO2017107909A1 (fr) 2015-12-22 2016-12-21 Objectif optique panoramique et dispositif de capture d'image

Country Status (2)

Country Link
CN (1) CN106908935B (fr)
WO (1) WO2017107909A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI660629B (zh) * 2017-11-06 2019-05-21 香港商萬維科研有限公司 自我調整三維立體成像系統

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108282632A (zh) * 2017-12-31 2018-07-13 北京机械设备研究所 全景视频监控装置及基于该装置的成像方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6356296B1 (en) * 1997-05-08 2002-03-12 Behere Corporation Method and apparatus for implementing a panoptic camera system
US20020146248A1 (en) * 2001-02-24 2002-10-10 Herman Herman Radially-oriented planar surfaces for flare reduction in panoramic cameras
US20020154417A1 (en) * 1999-01-13 2002-10-24 Be Here Corporation Panoramic imaging arrangement
CN1975554A (zh) * 2006-12-14 2007-06-06 上海交通大学 基于双曲面取景器的全景视觉系统
CN203981961U (zh) * 2014-07-07 2014-12-03 长春方圆光电技术有限责任公司 360度环视图像采集系统
CN204044421U (zh) * 2014-03-26 2014-12-24 中国计量学院 一种长焦型全景环形成像镜头

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6493032B1 (en) * 1996-06-24 2002-12-10 Be Here Corporation Imaging arrangement which allows for capturing an image of a view at different resolutions
US6175454B1 (en) * 1999-01-13 2001-01-16 Behere Corporation Panoramic imaging arrangement
CN1558262A (zh) * 2004-01-12 2004-12-29 浙江大学 180°大视场环形全景凝视成像方法
CN100520478C (zh) * 2006-09-06 2009-07-29 亚洲光学股份有限公司 微型取像广角镜头
CN100456075C (zh) * 2007-04-24 2009-01-28 浙江大学 多片式全景环视成像透镜
WO2013106427A1 (fr) * 2012-01-09 2013-07-18 Eyesee360, Inc. Systèmes optiques panoramiques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6356296B1 (en) * 1997-05-08 2002-03-12 Behere Corporation Method and apparatus for implementing a panoptic camera system
US20020154417A1 (en) * 1999-01-13 2002-10-24 Be Here Corporation Panoramic imaging arrangement
US20020146248A1 (en) * 2001-02-24 2002-10-10 Herman Herman Radially-oriented planar surfaces for flare reduction in panoramic cameras
CN1975554A (zh) * 2006-12-14 2007-06-06 上海交通大学 基于双曲面取景器的全景视觉系统
CN204044421U (zh) * 2014-03-26 2014-12-24 中国计量学院 一种长焦型全景环形成像镜头
CN203981961U (zh) * 2014-07-07 2014-12-03 长春方圆光电技术有限责任公司 360度环视图像采集系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI660629B (zh) * 2017-11-06 2019-05-21 香港商萬維科研有限公司 自我調整三維立體成像系統

Also Published As

Publication number Publication date
CN106908935B (zh) 2019-11-26
CN106908935A (zh) 2017-06-30

Similar Documents

Publication Publication Date Title
WO2017107910A1 (fr) Objectif optique panoramique et dispositif de capture d'image
TWI636295B (zh) 光學取像鏡頭、取像裝置及電子裝置
US10288845B2 (en) Image capturing lens system, image capturing unit and electronic device
TWI637207B (zh) 成像透鏡組、取像裝置及電子裝置
US10310230B2 (en) Photographing lens system, image capturing unit and electronic device
TWI626487B (zh) 光學影像鏡頭系統組、取像裝置及電子裝置
US8498063B2 (en) Telephoto lens system
TWI629527B (zh) 攝影系統鏡片組、取像裝置及電子裝置
TW201830082A (zh) 影像擷取光學鏡片組、取像裝置及電子裝置
CN102177468A (zh) 三反射镜全景相机
JPWO2003042743A1 (ja) 広角撮像光学系とこれを備えた広角撮像装置、監視用撮像装置、車載用撮像装置、及び投写装置
TW201831944A (zh) 影像擷取光學透鏡組、取像裝置及電子裝置
TW201932901A (zh) 光學攝像鏡組、取像裝置及電子裝置
CN102495460A (zh) 一种全景成像镜头
TWI490537B (zh) 變焦鏡頭及變焦鏡頭模組
JP2021157077A (ja) レンズ系、撮像装置、及び移動体
CN214375510U (zh) 电子装置
KR20230012633A (ko) 광학 렌즈, 카메라 모듈 및 전자 장치
JP2903479B2 (ja) ズームレンズ
TW201913162A (zh) 影像鏡片系統組、取像裝置及電子裝置
WO2016165644A1 (fr) Dispositif d'acquisition d'image panoramique
WO2017107909A1 (fr) Objectif optique panoramique et dispositif de capture d'image
CN114647068B (zh) 光学系统
JP2008134540A (ja) 魚眼レンズ
JP2009080410A (ja) 光学系及びそれを用いた内視鏡

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16877719

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 13/11/2018)

122 Ep: pct application non-entry in european phase

Ref document number: 16877719

Country of ref document: EP

Kind code of ref document: A1