WO2017193891A1 - 一种镜头及拍摄装置 - Google Patents

一种镜头及拍摄装置 Download PDF

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Publication number
WO2017193891A1
WO2017193891A1 PCT/CN2017/083487 CN2017083487W WO2017193891A1 WO 2017193891 A1 WO2017193891 A1 WO 2017193891A1 CN 2017083487 W CN2017083487 W CN 2017083487W WO 2017193891 A1 WO2017193891 A1 WO 2017193891A1
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WIPO (PCT)
Prior art keywords
light
plane mirror
incident
incident light
mirror
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PCT/CN2017/083487
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English (en)
French (fr)
Inventor
郑少华
黎剑辉
张圳
朱一伟
湛浩
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丰唐物联技术(深圳)有限公司
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Publication of WO2017193891A1 publication Critical patent/WO2017193891A1/zh

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B35/00Stereoscopic photography
    • G03B35/18Stereoscopic photography by simultaneous viewing

Definitions

  • the present invention relates to the field of photographing technology, and in particular, to a lens and a photographing device.
  • the principle of stereo vision is: humans have two eyes, when two eyes look at the same object, because the angles of the two eyes are slightly different, the images seen by the two eyes are slightly different, two The image seen by the eye is processed by the brain to form a stereoscopic visual effect.
  • the present invention proposes a lens and a photographing device, which aim to solve the problems of high cost of capturing stereoscopic images and high precision of synchronization control.
  • a lens comprising a left optical channel and a right optical channel symmetrically arranged, wherein the left optical channel is provided with a first reflective plane mirror and a second reflective plane mirror, and the right optical channel is provided with a third reflective plane mirror And a fourth reflecting plane mirror, wherein the first reflecting plane mirror and the third reflecting plane mirror respectively have an angle of 45° to 75° with respect to the horizontal line, and the front end of the left optical channel is provided with a first light entrance port, and the end is provided a first light exit port, a front end of the right light channel is provided with a second light entrance port, and a second light exit port is disposed at a distal end thereof, and left incident light is incident from the first light entrance port into the left light channel,
  • the first reflecting plane mirror reflects, and is directed to the second reflecting plane mirror located on the right side, and then the left incident light is emitted from the first light exit port through the second reflecting plane mirror, and the right incident light is emitted from the second
  • the light entrance port is incident on the right light
  • the left incident light is shifted to the right after the left optical channel, and the left incident light that enters the first light entrance and the left incident light that is emitted through the first light exit Parallel to each other, the right incident light is shifted to the left by the right optical channel, and the right incident light incident into the second light entrance port and the right incident light emitted through the second light exit port are parallel to each other.
  • an end of the second reflective mirror abuts against an end of the fourth reflective mirror.
  • the first light exit port is located on the left side of the end of the second reflection mirror, and the second light exit port is located on the right side of the fourth reflection plane mirror.
  • the first reflecting plane mirror and the third reflecting plane mirror respectively have an angle of 53 with the horizontal line. .
  • the present invention further provides a photographing apparatus, comprising an image sensor, a lens located at a front end of the image sensor, the lens comprising a left optical channel and a right optical channel symmetrically arranged left and right, and the left optical channel is provided a first reflecting plane mirror and a second reflecting plane mirror, wherein the right reflecting channel is provided with a third reflecting plane mirror and a fourth reflecting plane mirror, wherein the first reflecting plane mirror and the third reflecting plane mirror respectively have an angle of 45° with the horizontal line ⁇ 75°, the front end of the left optical channel is provided with a first light entrance, the end of which is provided with a first light exit port, the front end of the right light channel is provided with a second light entrance, and the end of the right light channel is provided with a second light output a left incident light is incident from the first entrance port into the left optical channel, reflected by the first reflective plane mirror, and is directed to the second reflective mirror located on the right side, and then the second reflection
  • the plane mirror emits left incident light from the first light exit
  • the left incident light is shifted to the right after the left optical channel, and the left incident light that enters the first light entrance and the left incident light that is emitted through the first light exit Parallel to each other, the right incident light is shifted to the left by the right optical channel, and the right incident light incident into the second light entrance port and the right incident light emitted through the second light exit port are parallel to each other.
  • an end of the second reflective mirror abuts against an end of the fourth reflective mirror.
  • the first light exit port is located at a left side of the end of the second reflective plane mirror, and the second light exit The optical port is located on the right side of the fourth reflecting mirror.
  • the first reflecting plane mirror and the third reflecting plane mirror respectively have an angle of 53 with the horizontal line. .
  • the utility model has the beneficial effects that the incident light of the same scene is directed to the same image sensor through the left optical channel and the right optical channel of the lens, and can form an image required for the stereoscopic image, in an ordinary camera.
  • the lens can be mounted, and only one image sensor is needed, and two sets of shooting systems are not required. Therefore, there is no problem of synchronous control, thereby solving the cost and synchronization control precision of the existing stereoscopic image. High problem.
  • FIG. 1 is a plan view of a lens according to an embodiment of the present invention.
  • FIG. 2 is a bottom view of a lens according to an embodiment of the present invention.
  • FIG 3 is an optical path diagram of a lens according to an embodiment of the present invention.
  • the embodiment of the present invention provides a lens 1 including a left optical channel 11 and a right optical channel 12, and the left optical channel 11 and the right optical channel 12 are symmetrically arranged left and right.
  • a first reflective plane mirror 111 and a second reflection plane mirror 112 are disposed in the left light tunnel 11, and the second reflection plane mirror 112 is located on the right side of the first reflection plane mirror 111, and the reflection surface and the second reflection of the first reflection plane mirror 111 The reflecting surfaces of the plane mirror 112 are arranged oppositely.
  • a third reflective plane mirror 121 and a fourth reflective plane mirror 122 are disposed in the right light channel 12, and the fourth reflection plane mirror 122 is located on the left side of the third reflection plane mirror 121, and the reflection surface and the fourth reflection of the third reflection plane mirror 121 The reflecting surfaces of the plane mirror 122 are arranged oppositely.
  • the angle between the first reflecting plane mirror 111 and the horizontal line is 45° to 75°, and the angle ⁇ 2 between the third reflecting plane mirror 121 and the horizontal line is 45. ⁇ 75.
  • Using the lens 1 can be applied to shoot a body image at different focal lengths.
  • the angle between the first reflective plane mirror 111 and the horizontal line is 53°, and the third reflective plane mirror
  • the angle between 121 and the horizontal line a2 is 53°.
  • the front end of the left optical channel 11 is provided with a first light entrance 113, and the end of the left optical channel 11 is provided with a first light exit 114, and the external light is from the first A light entrance 113 enters the left light passage 11 and is emitted from the first light exit 114 through the first light exit 114.
  • the left incident light enters the left optical channel 11 from the first optical entrance 113, is reflected by the first reflective mirror 111, and is directed to the second reflective mirror 112 located on the right side, and then passes through the second reflective mirror 112.
  • the left incident light is emitted from the first light exit 114.
  • the front end of the right light tunnel 12 is provided with a second light entrance 123, and the end of the right light tunnel 12 is provided with a second light exit 124, and the external light enters the right light passage from the second light entrance 123. 12, emitted from the second light exit port 124 through the second light exit port 124.
  • the right incident light is incident on the right light channel 12 from the second light entrance port 123, is reflected by the third reflective plane mirror 121, is directed to the fourth reflective plane mirror 122 located on the left side, and then passes through the fourth reflective plane mirror 122.
  • the right incident light is emitted from the second light exit port 124.
  • the left incident light and the right incident light are respectively directed to the same image sensor via the left optical channel 11 and the right optical channel 12.
  • the incident light of the same scene is directed to the same image sensor through the left optical channel 11 and the right optical channel 12 of the lens 1, and can form an image required for the stereoscopic image.
  • the lens 1 can be mounted on an ordinary camera, and only needs to be used. To an image sensor, two sets of photographing systems are not required. For this reason, there is no problem of synchronous control, thereby solving the problems of high cost of photographing stereoscopic images and high precision of synchronization control.
  • the left incident light is shifted to the right after passing through the left light channel 11, and the left incident light incident on the first light entrance 113 and the left incident light emitted through the first light exit 114 are parallel to each other.
  • the right incident light is shifted to the left by the right light channel 12, and the right incident light incident on the second light entrance port 123 and the right incident light emitted through the second light exit port 124 are parallel to each other.
  • the direction of the left incident light before entering the left optical channel 11 is the same as the direction of the left incident light emitted through the left optical channel 11, and the change is that the left incident light is shifted to the right, and the left incident light is closer to the center line of the lens 1. .
  • the direction of the right incident light before entering the right light tunnel 12 and the right of the right light tunnel 12 The direction of the incident light is the same, and the change is that the right incident light is shifted to the left, and the right incident light is closer to the center line of the lens 1.
  • the left incident light and the right incident light respectively undergo a positional shift change after passing through the left optical channel 11 and the right optical channel 12, and the direction is unchanged toward the center line of the lens 1, so that the left incident light and the right incident light are concentrated on the lens.
  • an image sensor is placed at the center line of the lens 1 and at the light exits of the left light channel 11 and the right light channel 12, so that both the left incident light and the right incident light can be directed to the same Image Sensor.
  • the end of the second reflecting mirror 112 abuts against the end of the fourth reflecting mirror 122.
  • the end of the second reflecting plane mirror 112 abuts the end of the fourth reflecting plane mirror 122 in order to reduce the shadow gap between the left image and the right image after the drawing.
  • the first light exiting opening 114 is located on the left side of the end of the second reflecting mirror 112
  • the second light exiting opening 124 is located on the right side of the end of the fourth reflecting mirror 122.
  • Embodiments of the present invention also provide a photographing apparatus including a lens 1 and an image sensor (not shown in the figure), and the lens 1 is located at the front end of the image sensor.
  • the lens 1 includes a left optical channel 11 and a right optical channel 12, and the left optical channel 11 and the right optical channel 12 are arranged symmetrically left and right.
  • a first reflective plane mirror 111 and a second reflection plane mirror 112 are disposed in the left light tunnel 11, and the second reflection plane mirror 112 is located on the right side of the first reflection plane mirror 111, and the reflection surface and the second reflection of the first reflection plane mirror 111 The reflecting surfaces of the plane mirror 112 are arranged oppositely.
  • a third reflective plane mirror 121 and a fourth reflective plane mirror 122 are disposed in the right light tunnel 12, the fourth reflective plane mirror 122 is located on the left side of the third reflective plane mirror 121, and the reflective surface and the fourth reflection of the third reflective plane mirror 121 The reflecting surfaces of the plane mirror 122 are arranged oppositely.
  • the angle between the first reflecting plane mirror 111 and the horizontal line is 45° to 75°, and the angle ⁇ 2 between the third reflecting mirror 121 and the horizontal line is 45. ⁇ 75. , Using the lens 1 can be applied to shoot a body image at different focal lengths.
  • the angle between the first reflective plane mirror 111 and the horizontal line is 53°, and the third reflective plane mirror
  • the angle between 121 and the horizontal line a2 is 53°.
  • the front end of the left light tunnel 11 is provided with a first light entrance 113, and the end of the left light tunnel 11 is provided with a first light exit 114, and the external light is from the first An entrance optical port 113 enters the left optical channel 11, The first light exit 114 is emitted from the first light exit 114.
  • the left incident light enters the left optical channel 11 from the first optical entrance 113, is reflected by the first reflective mirror 111, and is directed to the second reflective mirror 112 located on the right side, and then passes through the second reflective mirror 112.
  • the left incident light is emitted from the first light exit 114.
  • the front end of the right optical channel 12 is provided with a second optical entrance 123, and the end of the right optical channel 12 is provided with a second optical outlet 124.
  • the external light enters the right optical channel from the second optical entrance 123. 12, emitted from the second light exit port 124 through the second light exit port 124.
  • the right incident light is incident on the right light channel 12 from the second light entrance port 123, is reflected by the third reflective plane mirror 121, is directed to the fourth reflective plane mirror 122 located on the left side, and then passes through the fourth reflective plane mirror 122.
  • the right incident light is emitted from the second light exit port 124.
  • the left incident light and the right incident light are respectively directed to the same image sensor via the left optical channel 11 and the right optical channel 12.
  • the incident light of the same scene is directed to the same image sensor through the left optical channel 11 and the right optical channel 12 of the lens 1, and can form an image required for the stereoscopic image, and the lens can be mounted on an ordinary camera, and only needs to be used.
  • An image sensor does not require two sets of photographing systems. For this reason, there is no problem of synchronous control, thereby solving the problems of high cost of photographing stereoscopic images and high precision of synchronization control.
  • the left incident light is shifted to the right after passing through the left optical channel 11, and the left incident light incident on the first light entrance 113 and the left incident light emitted through the first light exit 114 are parallel to each other.
  • the right incident light is shifted to the left by the right light channel 12, and the right incident light incident on the second light entrance port 123 and the right incident light emitted through the second light exit port 124 are parallel to each other.
  • the direction of the left incident light before entering the left optical channel 11 is the same as the direction of the left incident light emitted through the left optical channel 11, and the change is that the left incident light is shifted to the right, and the left incident light is closer to the center line of the lens 1. .
  • the direction of the right incident light before entering the right optical channel 12 is the same as the direction of the right incident light emitted through the right optical channel 12, and the change is that the right incident light is shifted to the left, and the right incident light is closer to the center line of the lens 1. .
  • the left incident light and the right incident light respectively undergo a positional shift change after passing through the left optical channel 11 and the right optical channel 12, and the direction is unchanged toward the center line of the lens 1, so that the left incident light and the right incident light are concentrated on the lens.
  • an image sensor is placed at the center line of the lens 1 and at the light exits of the left light channel 11 and the right light channel 12, so that both the left incident light and the right incident light can be directed to the same Image Sensor.
  • the end of the second reflecting mirror 112 abuts against the end of the fourth reflecting mirror 122.
  • the end of the second reflecting plane mirror 112 abuts the end of the fourth reflecting plane mirror 122 in order to reduce the shadow gap between the left image and the right image after the drawing.
  • the first light exit 114 is located on the left side of the end of the second reflective mirror 112, and the second light exit port
  • the image sensor is a charge coupled element or a metal oxide semiconductor element.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Stereoscopic And Panoramic Photography (AREA)

Abstract

一种镜头(1)及拍摄装置,涉及拍摄技术领域。该镜头(1)包括左右对称布置的左光通道(11)和右光通道(12),在左光通道(11)设有第一反射平面镜(111)和第二反射平面镜(112),在右光通道(12)设有第三反射平面镜(121)和第四反射平面镜(122),第一反射平面镜(111)、第三反射平面镜(121)分别与水平线的夹角为45°~75°,左入射光、右入射光分别经左光通道(11)、右光通道(12)射向同一图像传感器。同一景物的入射光线经镜头的左、右光通道(11、12)射向同一图像传感器,能够形成立体视觉图像所需的图像,在普通的相机装上该镜头即可,以及只需要使用到一个图像传感器,并不需要两套拍摄系统,不存在同步控制的问题,从而解决现有的拍摄立体视觉图像的成本高以及同步控制精度高的问题。

Description

说明书 发明名称:一种镜头及拍摄装置
技术领域
[0001] 本实用新型涉及拍摄技术领域, 特别涉及一种镜头及拍摄装置。
背景技术
[0002] 立体视觉的产生原理为: 人类拥有两个眼睛, 当两个眼睛看同一物体吋, 由于 两个眼睛所处的角度略有不同, 两个眼睛看到的图像略有差别, 两个眼睛看到 的图像经过大脑处理, 从而形成立体的视觉效果。
[0003] 为了模拟人类的立体视觉, 产生了立体拍摄, 现有的方法为: 使用两台照相机 模拟人的双眼, 从而实现立体拍摄。 但是现有的方案需要两套的拍摄系统, 导 致成本高以及同步控制精度高的问题。
技术问题
[0004] 针对现有技术不足, 本实用新型提出一种镜头及拍摄装置, 旨在解决拍摄立体 视觉图像的成本高以及同步控制精度高的问题。
问题的解决方案
技术解决方案
[0005] 本实用新型提出的技术方案是:
[0006] 一种镜头, 包括左右对称布置的左光通道和右光通道, 在所述左光通道设有第 一反射平面镜和第二反射平面镜, 在所述右光通道设有第三反射平面镜和第四 反射平面镜, 所述第一反射平面镜、 所述第三反射平面镜分别与水平线的夹角 为 45°〜75°, 所述左光通道的前端设有第一入光口, 其末端设有第一出光口, 所 述右光通道的前端设有第二入光口, 其末端设有第二出光口, 左入射光从所述 第一入光口射入所述左光通道, 经所述第一反射平面镜反射, 射向位于右侧的 所述第二反射平面镜, 再经所述第二反射平面镜将左入射光从所述第一出光口 射出, 右入射光从所述第二入光口射入所述右光通道, 经所述第三反射平面镜 反射, 射向位于左侧的所述第四反射平面镜, 再经所述第四反射平面镜将右入 射光从所述第二出光口射出, 左入射光、 右入射光分别经所述左光通道、 所述 右光通道射向同一图像传感器。
[0007] 进一步地, 所述左入射光经所述左光通道后向右偏移, 且射入所述第一入光口 的左入射光与经所述第一出光口射出的左入射光相互平行, 所述右入射光经所 述右光通道后向左偏移, 且射入所述第二入光口的右入射光与经所述第二出光 口射出的右入射光相互平行。
[0008] 进一步地, 所述第二反射平面镜的末端抵接于所述第四反射平面镜的末端。
[0009] 进一步地, 所述第一出光口位于所述第二反射平面镜末端的左侧, 所述第二出 光口位于所述第四反射平面镜的右侧。
[0010] 进一步地, 所述第一反射平面镜、 所述第三反射平面镜分别与水平线的夹角为 53。。
[0011] 本实用新型还提出一种拍摄装置, 包括图像传感器、 位于所述图像传感器前端 的镜头, 所述镜头包括左右对称布置的左光通道和右光通道, 在所述左光通道 设有第一反射平面镜和第二反射平面镜, 在所述右光通道设有第三反射平面镜 和第四反射平面镜, 所述第一反射平面镜、 所述第三反射平面镜分别与水平线 的夹角为 45°〜75°, 所述左光通道的前端设有第一入光口, 其末端设有第一出光 口, 所述右光通道的前端设有第二入光口, 其末端设有第二出光口, 左入射光 从所述第一入光口射入所述左光通道, 经所述第一反射平面镜反射, 射向位于 右侧的所述第二反射平面镜, 再经所述第二反射平面镜将左入射光从所述第一 出光口射出, 右入射光从所述第二入光口射入所述右光通道, 经所述第三反射 平面镜反射, 射向位于左侧的所述第四反射平面镜, 再经所述第四反射平面镜 将右入射光从所述第二出光口射出, 左入射光、 右入射光分别经所述左光通道 、 所述右光通道射向所述图像传感器。
[0012] 进一步地, 所述左入射光经所述左光通道后向右偏移, 且射入所述第一入光口 的左入射光与经所述第一出光口射出的左入射光相互平行, 所述右入射光经所 述右光通道后向左偏移, 且射入所述第二入光口的右入射光与经所述第二出光 口射出的右入射光相互平行。
[0013] 进一步地, 所述第二反射平面镜的末端抵接于所述第四反射平面镜的末端。
[0014] 进一步地, 所述第一出光口位于所述第二反射平面镜末端的左侧, 所述第二出 光口位于所述第四反射平面镜的右侧。
[0015] 进一步地, 所述第一反射平面镜、 所述第三反射平面镜分别与水平线的夹角为 53。。
发明的有益效果
有益效果
[0016] 根据上述的技术方案, 本实用新型有益效果: 同一景物的入射光线经镜头的左 光通道、 右光通道射向同一图像传感器, 能够形成立体视觉图像所需的图像, 在普通的相机装上该镜头即可, 以及只需要使用到一个图像传感器, 并不需要 两套拍摄系统, 为此, 不存在同步控制的问题, 从而解决现有的拍摄立体视觉 图像的成本高以及同步控制精度高的问题。
对附图的简要说明
附图说明
[0017] 图 1是应用本实用新型实施例提供的镜头的俯视图;
[0018] 图 2是应用本实用新型实施例提供的镜头的仰视图;
[0019] 图 3是应用本实用新型实施例提供的镜头的光路图。
本发明的实施方式
[0020] 为了使本实用新型的目的、 技术方案及优点更加清楚明白, 以下结合附图及实 施例, 对本实用新型进行进一步详细说明。 应当理解, 此处所描述的具体实施 例仅仅用以解释本实用新型, 并不用于限定本实用新型。
[0021] 如图 1和图 3所示, 本实用新型实施例提出一种镜头 1, 包括左光通道 11和右光 通道 12, 左光通道 11与右光通道 12左右对称布置。
[0022] 在左光通道 11内设有第一反射平面镜 111和第二反射平面镜 112, 第二反射平面 镜 112位于第一反射平面镜 111的右侧, 第一反射平面镜 111的反射面与第二反射 平面镜 112的反射面朝向相反布置。
[0023] 在右光通道 12内设有第三反射平面镜 121和第四反射平面镜 122, 第四反射平面 镜 122位于第三反射平面镜 121的左侧, 第三反射平面镜 121的反射面与第四反射 平面镜 122的反射面朝向相反布置。
[0024] 第一反射平面镜 111与水平线的夹角 al为 45°〜75°, 第三反射平面镜 121与水平 线的夹角 a2为 45。〜75。, 使用镜头 1可以适用在不同焦距拍摄成立体图像。
[0025] 在本实施例中, 第一反射平面镜 111与水平线的夹角 al为 53°, 第三反射平面镜
121与水平线的夹角 a2为 53°。
[0026] 如图 1、 图 2和图 3所示, 左光通道 11的前端设有第一入光口 113, 左光通道 11的 末端设有第一出光口 114, 外界的光线是从第一入光口 113进入左光通道 11, 经 第一出光口 114从第一出光口 114射出。
[0027] 具体地, 左入射光从第一入光口 113射入左光通道 11, 经第一反射平面镜 111反 射, 射向位于右侧的第二反射平面镜 112, 再经第二反射平面镜 112将左入射光 从第一出光口 114射出。
[0028] 同理, 右光通道 12的前端设有第二入光口 123, 右光通道 12的末端设有第二出 光口 124, 外界的光线是从第二入光口 123进入右光通道 12, 经第二出光口 124从 第二出光口 124射出。
[0029] 具体地, 右入射光从第二入光口 123射入右光通道 12, 经第三反射平面镜 121反 射, 射向位于左侧的第四反射平面镜 122, 再经第四反射平面镜 122将右入射光 从第二出光口 124射出。
[0030] 左入射光、 右入射光分别经左光通道 11、 右光通道 12射向同一图像传感器。 同 一景物的入射光线经镜头 1的左光通道 11、 右光通道 12射向同一图像传感器, 能 够形成立体视觉图像所需的图像, 在普通的相机装上该镜头 1即可, 以及只需要 使用到一个图像传感器, 并不需要两套拍摄系统, 为此, 不存在同步控制的问 题, 从而解决现有的拍摄立体视觉图像的成本高以及同步控制精度高的问题。
[0031] 在本实施例中, 左入射光经左光通道 11后向右偏移, 且射入第一入光口 113的 左入射光与经第一出光口 114射出的左入射光相互平行, 右入射光经右光通道 12 后向左偏移, 且射入第二入光口 123的右入射光与经第二出光口 124射出的右入 射光相互平行。 在射入左光通道 11之前的左入射光方向和在经左光通道 11射出 的左入射光方向相同, 发生变化的是左入射光向右偏移, 左入射光向镜头 1的中 心线靠近。 在射入右光通道 12之前的右入射光方向和在经右光通道 12射出的右 入射光方向相同, 发生变化的是右入射光向左偏移, 右入射光向镜头 1的中心线 靠近。 左入射光和右入射光分别经左光通道 11、 右光通道 12后发生了位置偏移 变化且方向不变地向镜头 1的中心线靠近, 使左入射光和右入射光都集中在镜头 1的中心线附近, 为此, 在镜头 1的中心线且为左光通道 11和右光通道 12的出光 口处放置一个图像传感器, 就能使左入射光和右入射光都射向同一个图像传感 器。
[0032] 在本实施例中, 第二反射平面镜 112的末端抵接于第四反射平面镜 122的末端。
第二反射平面镜 112的末端与第四反射平面镜 122的末端抵接是为了减少在成图 后左图像与右图像之间的阴影间隙。
[0033] 在本实施中, 第一出光口 114位于第二反射平面镜 112末端的左侧, 第二出光口 124位于第四反射平面镜 122末端的右侧。 为了使第一出光口 114与第二出光口 12 4相互靠近, 使左入射光和右入射光都射向同一个图像传感器。
[0034] 本实用新型实施例还提出一种拍摄装置, 包括镜头 1和图像传感器 (在图未标 注) , 镜头 1位于图像传感器的前端。
[0035] 如图 1和图 2所示, 镜头 1包括左光通道 11和右光通道 12, 左光通道 11与右光通 道 12左右对称布置。
[0036] 在左光通道 11内设有第一反射平面镜 111和第二反射平面镜 112, 第二反射平面 镜 112位于第一反射平面镜 111的右侧, 第一反射平面镜 111的反射面与第二反射 平面镜 112的反射面朝向相反布置。
[0037] 在右光通道 12内设有第三反射平面镜 121和第四反射平面镜 122, 第四反射平面 镜 122位于第三反射平面镜 121的左侧, 第三反射平面镜 121的反射面与第四反射 平面镜 122的反射面朝向相反布置。
[0038] 第一反射平面镜 111与水平线的夹角 al为 45°〜75°, 第三反射平面镜 121与水平 线的夹角 a2为 45。〜75。, 使用镜头 1可以适用在不同焦距拍摄成立体图像。
[0039] 在本实施例中, 第一反射平面镜 111与水平线的夹角 al为 53°, 第三反射平面镜
121与水平线的夹角 a2为 53°。
[0040] 如图 1、 图 2和图 3所示, 左光通道 11的前端设有第一入光口 113, 左光通道 11的 末端设有第一出光口 114, 外界的光线是从第一入光口 113进入左光通道 11, 经 第一出光口 114从第一出光口 114射出。
[0041] 具体地, 左入射光从第一入光口 113射入左光通道 11, 经第一反射平面镜 111反 射, 射向位于右侧的第二反射平面镜 112, 再经第二反射平面镜 112将左入射光 从第一出光口 114射出。
[0042] 同理, 右光通道 12的前端设有第二入光口 123, 右光通道 12的末端设有第二出 光口 124, 外界的光线是从第二入光口 123进入右光通道 12, 经第二出光口 124从 第二出光口 124射出。
[0043] 具体地, 右入射光从第二入光口 123射入右光通道 12, 经第三反射平面镜 121反 射, 射向位于左侧的第四反射平面镜 122, 再经第四反射平面镜 122将右入射光 从第二出光口 124射出。
[0044] 左入射光、 右入射光分别经左光通道 11、 右光通道 12射向同一图像传感器。 同 一景物的入射光线经镜头 1的左光通道 11、 右光通道 12射向同一图像传感器, 能 够形成立体视觉图像所需的图像, 在普通的相机装上该镜头即可, 以及只需要 使用到一个图像传感器, 并不需要两套拍摄系统, 为此, 不存在同步控制的问 题, 从而解决现有的拍摄立体视觉图像的成本高以及同步控制精度高的问题。
[0045] 在本实施例中, 左入射光经左光通道 11后向右偏移, 且射入第一入光口 113的 左入射光与经第一出光口 114射出的左入射光相互平行, 右入射光经右光通道 12 后向左偏移, 且射入第二入光口 123的右入射光与经第二出光口 124射出的右入 射光相互平行。 在射入左光通道 11之前的左入射光方向和在经左光通道 11射出 的左入射光方向相同, 发生变化的是左入射光向右偏移, 左入射光向镜头 1的中 心线靠近。 在射入右光通道 12之前的右入射光方向和在经右光通道 12射出的右 入射光方向相同, 发生变化的是右入射光向左偏移, 右入射光向镜头 1的中心线 靠近。 左入射光和右入射光分别经左光通道 11、 右光通道 12后发生了位置偏移 变化且方向不变地向镜头 1的中心线靠近, 使左入射光和右入射光都集中在镜头 1的中心线附近, 为此, 在镜头 1的中心线且为左光通道 11和右光通道 12的出光 口处放置一个图像传感器, 就能使左入射光和右入射光都射向同一个图像传感 器。
[0046] 在本实施例中, 第二反射平面镜 112的末端抵接于第四反射平面镜 122的末端。 第二反射平面镜 112的末端与第四反射平面镜 122的末端抵接是为了减少在成图 后左图像与右图像之间的阴影间隙。
[0047] 在本实施中, 第一出光口 114位于第二反射平面镜 112末端的左侧, 第二出光口
124位于第四反射平面镜 122末端的右侧。 为了使第一出光口 114与第二出光口 12
4相互靠近, 使左入射光和右入射光都射向同一个图像传感器。
[0048] 在本实施例中, 图像传感器为电荷耦合元件或者金属氧化物半导体元件。
[0049] 以上所述仅为本实用新型的较佳实施例而已, 并不用以限制本实用新型, 凡在 本实用新型的精神和原则之内所作的任何修改、 等同替换和改进等, 均应包含 在本实用新型的保护范围之内。

Claims

权利要求书
[权利要求 1] 一种镜头, 其特征在于, 包括左右对称布置的左光通道和右光通道, 在所述左光通道设有第一反射平面镜和第二反射平面镜, 在所述右光 通道设有第三反射平面镜和第四反射平面镜, 所述第一反射平面镜、 所述第三反射平面镜分别与水平线的夹角为 45°〜75°, 所述左光通道 的前端设有第一入光口, 其末端设有第一出光口, 所述右光通道的前 端设有第二入光口, 其末端设有第二出光口, 左入射光从所述第一入 光口射入所述左光通道, 经所述第一反射平面镜反射, 射向位于右侧 的所述第二反射平面镜, 再经所述第二反射平面镜将左入射光从所述 第一出光口射出, 右入射光从所述第二入光口射入所述右光通道, 经 所述第三反射平面镜反射, 射向位于左侧的所述第四反射平面镜, 再 经所述第四反射平面镜将右入射光从所述第二出光口射出, 左入射光 、 右入射光分别经所述左光通道、 所述右光通道射向同一图像传感器
[权利要求 2] 根据权利要求 1所述的一种镜头, 其特征在于, 所述左入射光经所述 左光通道后向右偏移, 且射入所述第一入光口的左入射光与经所述第 一出光口射出的左入射光相互平行, 所述右入射光经所述右光通道后 向左偏移, 且射入所述第二入光口的右入射光与经所述第二出光口射 出的右入射光相互平行。
[权利要求 3] 根据权利要求 1所述的一种镜头, 其特征在于, 所述第二反射平面镜 的末端抵接于所述第四反射平面镜的末端。
[权利要求 4] 根据权利要求 3所述的一种镜头, 其特征在于, 所述第一出光口位于 所述第二反射平面镜末端的左侧, 所述第二出光口位于所述第四反射 平面镜末端的右侧。
[权利要求 5] 根据权利要求 1-4任一所述的一种镜头, 其特征在于, 所述第一反射 平面镜、 所述第三反射平面镜分别与水平线的夹角为 53°。
[权利要求 6] —种拍摄装置, 包括图像传感器, 其特征在于, 还包括位于所述图像 传感器前端的镜头, 所述镜头包括左右对称布置的左光通道和右光通 道, 在所述左光通道设有第一反射平面镜和第二反射平面镜, 在所述 右光通道设有第三反射平面镜和第四反射平面镜, 所述第一反射平面 镜、 所述第三反射平面镜分别与水平线的夹角为 45°〜75°, 所述左光 通道的前端设有第一入光口, 其末端设有第一出光口, 所述右光通道 的前端设有第二入光口, 其末端设有第二出光口, 左入射光从所述第 一入光口射入所述左光通道, 经所述第一反射平面镜反射, 射向位于 右侧的所述第二反射平面镜, 再经所述第二反射平面镜将左入射光从 所述第一出光口射出, 右入射光从所述第二入光口射入所述右光通道 , 经所述第三反射平面镜反射, 射向位于左侧的所述第四反射平面镜 , 再经所述第四反射平面镜将右入射光从所述第二出光口射出, 左入 射光、 右入射光分别经所述左光通道、 所述右光通道射向所述图像传 感器。
[权利要求 7] 根据权利要求 6所述的一种拍摄装置, 其特征在于, 所述左入射光经 所述左光通道后向右偏移, 且射入所述第一入光口的左入射光与经所 述第一出光口射出的左入射光相互平行, 所述右入射光经所述右光通 道后向左偏移, 且射入所述第二入光口的右入射光与经所述第二出光 口射出的右入射光相互平行。
[权利要求 8] 根据权利要求 6所述的一种拍摄装置, 其特征在于, 所述第二反射平 面镜的末端抵接于所述第四反射平面镜的末端。
[权利要求 9] 根据权利要求 8所述的一种拍摄装置, 其特征在于, 所述第一出光口 位于所述第二反射平面镜末端的左侧, 所述第二出光口位于所述第四 反射平面镜末端的右侧。
[权利要求 10] 根据权利要求 6-9任一所述的一种拍摄装置, 其特征在于, 所述第一 反射平面镜、 所述第三反射平面镜分别与水平线的夹角为 53°。
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