WO2017101253A1 - 激光测距装置、摄像装置及其终端 - Google Patents

激光测距装置、摄像装置及其终端 Download PDF

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Publication number
WO2017101253A1
WO2017101253A1 PCT/CN2016/082554 CN2016082554W WO2017101253A1 WO 2017101253 A1 WO2017101253 A1 WO 2017101253A1 CN 2016082554 W CN2016082554 W CN 2016082554W WO 2017101253 A1 WO2017101253 A1 WO 2017101253A1
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WO
WIPO (PCT)
Prior art keywords
light
transmitting portion
light transmitting
cover plate
laser ranging
Prior art date
Application number
PCT/CN2016/082554
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English (en)
French (fr)
Inventor
黄晓峰
Original Assignee
深圳市金立通信设备有限公司
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Application filed by 深圳市金立通信设备有限公司 filed Critical 深圳市金立通信设备有限公司
Priority to US15/539,891 priority Critical patent/US20180356499A1/en
Publication of WO2017101253A1 publication Critical patent/WO2017101253A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • G01S7/4813—Housing arrangements
    • 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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/18—Focusing aids
    • G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera

Definitions

  • the utility model relates to the field of optics, in particular to a laser distance measuring device, an imaging device and a terminal thereof.
  • Near-infrared laser ranging technology can quickly measure the distance from the measured object to the sensor according to the time of flight of the photon.
  • the laser ranging sensor can measure the target distance by transmitting and receiving near-infrared rays, and then by emitting a photon and receiving a photon of a TOF (time of fly).
  • the distance information can be used to speed up the autofocus speed to obtain a better photographing experience.
  • an optical window is usually required to be added to the outer casing of the terminal, and the surface of the optical window is usually closed by a transparent cover plate, and the optical window is closed.
  • the light cover plate enables the light emitter on the laser ranging sensor to emit light onto the object to be measured, and the light is reflected by the object to be measured and reflected to the light receiver through the optical window for receiving to achieve measurement. The purpose of the target distance.
  • the laser distance measuring device provided by the utility model can prevent the light emitted by the light emitter from being transmitted to the light receiver through the cover plate to crosstalk generated by the infrared light, thereby ensuring the accuracy of the result of measuring the target distance.
  • the present invention also provides an image pickup apparatus using the laser distance measuring device.
  • the present invention also provides a terminal to which the camera device is applied.
  • the present invention provides a laser ranging device including a laser ranging sensor and a cover plate, wherein the laser ranging sensor is provided with a spaced-apart light emitter and a light receiver, the cover The plate is disposed on the laser ranging sensor, and the cover plate includes a first light transmitting portion, a second light transmitting portion, and a light shielding layer, wherein the first light transmitting portion and the second light transmitting portion respectively correspond to the light a transmitter and a light receiver, wherein the light emitter emits a light beam to the object to be measured via the first light transmitting portion, and the light beam is reflected and transmitted through the second light through the object to be measured Receiving and receiving the light receiving layer, the light shielding layer is disposed between the first light transmitting portion and the second light transmitting portion.
  • the present invention also provides an image pickup apparatus including a camera assembly, a processor, and a laser ranging device as described above, the processor being electrically connected to the camera assembly, the laser ranging The device is electrically connected to the processor, the laser ranging device sends the measurement result to the processor, and the processor feeds back the measurement result to the camera component to enable the camera component to receive The measurement results are taken and the focus is taken.
  • the present invention also provides a terminal, including a housing and the above-mentioned imaging device, wherein the imaging device is installed in the housing.
  • the laser distance measuring device, the image capturing device and the terminal provided by the utility model are provided with a first light transmitting portion and a second light transmitting portion at positions corresponding to the light receiver and the light emitter of the laser distance measuring sensor on the cover plate
  • a light shielding layer is disposed between the first light transmitting portion and the second light transmitting portion, and the light shielding layer can block the light emitted from the light emitter to the outside of the first light transmitting portion, thereby Preventing the beam from being reflected onto the light receiver and causing crosstalk caused by the emission and reception of infrared rays ensures the accuracy of the measurement result of the laser ranging sensor for the target distance.
  • FIG. 1 is a schematic structural view of a laser distance measuring device according to a first embodiment of the present invention
  • FIG. 2 is a perspective view of a cover plate according to a first embodiment of the present invention
  • FIG. 3 is another schematic structural view of a cover plate provided by the first embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a laser distance measuring device according to a second embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a laser distance measuring device according to a third embodiment of the present invention.
  • FIG. 6 is a schematic structural view of a cover plate according to a third embodiment of the present invention.
  • FIG. 7 is a schematic view showing another structure of a cover plate according to a third embodiment of the present invention.
  • FIG. 8 is a schematic structural view of a laser distance measuring device according to a fourth embodiment of the present invention.
  • a terminal provided by an embodiment of the present invention includes a housing (not shown) and an imaging device, and the imaging device is installed in the housing.
  • the camera device includes a camera assembly (not shown), a processor (not shown), and a laser ranging sensor 100.
  • the processor is electrically connected to the camera assembly, and the laser ranging device 100 is The processor is electrically connected, the laser ranging device 100 transmits the measurement result to the processor, and the processor feeds back the measurement result to the camera component to enable the camera component to receive the The measurement results are described and the focus is taken.
  • the camera device may be a camera or a monitor or the like.
  • the terminal can be, but is not limited to, a mobile phone, a notebook computer, a tablet computer, and the like. In this embodiment, the terminal is used as a mobile phone as an example for description.
  • the camera device is provided with a casing (not shown), the laser distance measuring device 100 is disposed in the casing of the camera device, and the casing is provided with a light-transmitting window (not shown).
  • the laser ranging device 100 sends a light beam to the object to be measured through the light transmission window, so that the object to be measured reflects the light beam, thereby obtaining a measurement result.
  • the processor achieves the purpose of speeding up the focusing speed of the camera when the camera performs shooting by processing the measurement result and feeding back the measurement result to the camera component, thereby obtaining a better photographing experience. .
  • FIG. 1 to FIG. 3 is a laser ranging device 100 according to a first embodiment of the present invention.
  • the laser ranging device 100 includes a laser ranging sensor 11 and a cover plate 12 .
  • the laser distance measuring sensor 11 is provided with a light emitter 111 and a light receiver 112 which are disposed at intervals.
  • the cover plate 12 is disposed above the laser ranging sensor 11 , and the cover plate 12 includes a first light transmitting portion 121 , a second light transmitting portion 122 , and a light shielding layer 123 , and the first light transmitting portion 121 and The second light transmitting portions 122 are respectively disposed corresponding to the light emitter 111 and the light receiver 112.
  • the light emitter 111 emits a light beam to the object to be measured via the first light transmitting portion 121, and reflects the light beam and the second light transmitting portion 122 to the light via the object to be measured.
  • the receiver 112 is on and absorbed.
  • the light shielding layer 123 is disposed between the first light transmitting portion 121 and the second light transmitting portion 122, and the light shielding layer 123 is configured to block the light emitter 111 from being emitted to the first light transmitting portion 121.
  • the outer beam is configured to block the light emitter 111 from being emitted to the first light transmitting portion 121.
  • the light emitter 111 emits a light beam through the first light transmitting portion 121 of the cover plate 12, and through the through The light window is emitted and reaches the object to be measured, and then the light beam is reflected by the object to be measured, and the light beam is reflected to the light receiver 112 through the second light transmitting portion 122 through the light transmission window, and is performed.
  • Absorption The purpose of measuring the target distance is achieved by recording and processing the time elapsed after the beam is emitted to reach the object to be returned to be received by 112.
  • the material of the cover plate 12 is a transparent material, and the light shielding layer 123 is embedded in the interior of the cover plate 12 .
  • the cover plate 12 can be made of an optical grade transparent material such as optical glass.
  • the shape of the cover plate 12 may be correspondingly set according to the shape of the light transmission window. For example, when the light transmission window is a circular hole or a square hole, the cover plate 12 is a corresponding circular plate structure or Square plate structure.
  • the light shielding layer 123 is interposed between the first light transmitting portion 121 and the second light transmitting portion 122 in order to ensure the shielding effect of the light shielding layer 123.
  • the first light transmitting portion 121 and the second light transmitting portion 122 may be pasted together with the light shielding layer 123 by means of an adhesive.
  • the first light transmitting portion 121 is placed first, and then the light shielding layer 123 is pasted on the first light transmitting portion 121, and the second light transmitting portion 122 is pasted to the light shielding layer. 123 on.
  • the cover plate 12 when the cover plate 12 is processed, the cover plate 12 may also be formed by first forming the first light transmitting portion 121 during injection molding, and then placing the light shielding layer 123 in a cavity of the mold. Then, the injection molding is performed so that the formed light shielding layer 123 can be interposed between the first light transmitting portion 121 and the second light transmitting portion 122.
  • FIG. 3 is a schematic diagram of another structure for forming the light shielding layer 123 and the cover plate 12 .
  • a receiving groove (not shown) is defined in the cover 12, and the light shielding layer 123 is fixed in the receiving groove.
  • the accommodating groove 12 has a certain distance from the edge of the cover plate 12, that is, the light shielding layer 123 and the cover plate 12 The edge has a certain distance, and therefore, the overall structural strength of the cover 12 formed by this method is better.
  • the light shielding layer 123 may be a metal layer, and the light shielding layer 123 may be an aluminum sheet, an iron sheet or a steel sheet or the like. Since the metal has good light-shielding properties, when the light-shielding layer 123 is made of a metal layer, a good light-shielding effect can be ensured. In addition, in order to further ensure the light shielding effect, when the light shielding layer 123 is made of an aluminum sheet, the aluminum sheet may be oxidized and then embedded in the cover plate 12. Of course, it can be understood that in other embodiments, the light shielding layer 123 may also be a graphite sheet or other light shielding material.
  • the laser distance measuring device 100 provides the light shielding layer 123 on the cover plate 12, and the light shielding layer 123 is embedded in the cover plate 12, thereby enabling Blocking the light beam emitted by the light emitter 111 to the outside of the first light transmitting portion 121, thereby preventing the light beam from being reflected onto the light receiver 112 for reception and causing the distance measurement of the laser ranging device 100 interference.
  • the light shielding layer 123 is made of a metal layer, since the metal has good light shielding performance, the light shielding effect of the light shielding layer 123 can be further ensured.
  • FIG. 4 is a schematic structural diagram of a laser ranging device 200 according to a second embodiment of the present invention.
  • the laser ranging device 200 includes a laser ranging sensor 21 and a cover plate 22, and the laser ranging sensor 21 is provided with a light emitter 211 and a light receiver 212 disposed at intervals.
  • the cover plate 22 is disposed above the laser ranging sensor 21, and the cover plate 22 includes a first light transmitting portion 221, a second light transmitting portion 222, and a light shielding layer 223, and the first light transmitting portion 221 And the second light transmitting portion 222 is respectively disposed corresponding to the light emitter 211 and the light receiver 212, and the light emitter 221 emits a light beam to the object to be measured via the first light transmitting portion 221, via the The object to be measured reflects the light beam and is reflected by the second light transmitting portion 222 onto the light receiver 212 for reception.
  • the light shielding layer 223 is disposed between the first light transmitting portion 221 and the second light transmitting portion 222 .
  • the laser distance measuring device 200 provided by the second embodiment of the present invention is different from the laser distance measuring device 100 provided by the first embodiment in that the light shielding layer 223 is disposed on the surface of the cover plate 22 and is exposed.
  • the first light transmitting portion 221 and the second light transmitting portion 222 are described.
  • the cover plate 22 is a transparent material
  • the light shielding layer 223 is disposed on the surface of the cover plate 22 to prevent the light emitter 211 from passing the light beam outside the first light transmitting portion 221 .
  • the location is issued.
  • the light shielding layer 223 may be a metal layer attached to the surface of the cover plate 22, a graphite sheet or a black ink layer coated on the surface of the cover plate 22 to ensure a light shielding effect thereof.
  • a material such as an aluminum sheet, an iron sheet or a steel sheet which is surface oxidized may be selected. It is to be understood that in other embodiments, the light shielding layer 223 may also be a light shielding cloth attached to the surface of the cover plate 22.
  • the positions corresponding to the first light transmitting portion 221 and the second light transmitting portion 222 may be hollowed out to expose the first light transmitting portion. 221 and a second light transmitting portion 222.
  • the laser distance measuring device 200 provides the light shielding layer 223 on the surface of the cover plate 22 and corresponds to the first light transmitting portion 221 and the second light transmitting portion.
  • the first light transmitting portion 221 and the second light transmitting portion 222 are exposed at a position of 222, so that the light can be ensured
  • the light emitted by the light emitter 211 to the outside of the first light transmitting portion 221 can be blocked by the light shielding layer 223 while the light emitted from the first light transmitting portion 221 can be ensured by the emitter 211.
  • the light shielding layer 223 may be disposed on the surface of the cover 22 by attaching or brushing, so as to facilitate the cover 22 Processing and facilitating the formation of the light shielding layer 223.
  • FIG. 5 and FIG. 7 is a schematic structural diagram of a laser ranging device 300 according to a third embodiment of the present invention.
  • the laser ranging device 300 includes a laser ranging sensor 31 and a cover plate 32.
  • the laser distance measuring device 300 provided by the third embodiment of the present invention is different from the laser distance measuring device 200 provided by the second embodiment in that the cover plate 32 is an opaque material, and the cover plate 32 is The first light transmitting portion 321 and the second light transmitting portion 322 are both through holes formed in the cover plate 32.
  • the material of the cover plate 32 may be selected from metal or graphite. That is, the cover plate 32 may be selected from an oxidized aluminum plate, an iron plate or a graphite block or the like.
  • the cover plate 32 is an opaque material at other positions of the first light transmitting portion 321 and the second light transmitting portion 322, that is, the light shielding layer 323, so that the laser distance measuring sensor 31 can be further prevented.
  • the light emitter 311 emits a light beam to a position outside the first light transmitting portion 321 to prevent the light beam from being reflected onto the light receiver 312 of the laser ranging sensor 31.
  • a metal member having two light-transmissive holes may be installed in the mold, and the light-transparent material is filled with the light-transmitting material after being injection molded into the transparent material.
  • first light transmitting portion 321 and the second light transmitting portion 322 may be square holes or circular holes, so that the light emitter 311 emits light and the light receiver 312 receives light.
  • the cross-sectional shape of the first light transmitting portion 321 and the second light transmitting portion 322 may be T-shaped or tapered to facilitate light-emitting of the light emitter 311.
  • the two ends of the first light transmitting portion 321 and the second light transmitting portion 322 are respectively covered with a light shielding baffle (not shown).
  • a light shielding baffle not shown.
  • the laser distance measuring device 300 is provided with the cover plate 32 as an opaque material, and the first light transmitting portion 321 and the second light transmitting portion 322 of the cover plate 32 are both opened.
  • the through hole in the cover plate 32 enables light transmission at a position corresponding to the light emitter 311 and the light receiver 312 of the laser ranging sensor 31, and other positions of the cover 32 are shielded from light, thereby Further preventing the light beam emitted from the light emitter 311 at other positions of the first light transmitting portion 321 from being reflected onto the light receiver 312 to be absorbed to interfere with the ranging, ensuring the accuracy of the result of the ranging.
  • FIG. 8 is a schematic diagram of a laser ranging device 400 according to a fourth embodiment of the present invention.
  • the laser ranging device 400 includes the laser ranging sensor 300 and a cover 42 .
  • the laser ranging device 400 provided by the fourth embodiment of the present invention is different from the laser ranging device 100 provided by the first embodiment in that the cover 42 is an integrally formed T-shaped structure, and the cover 42 is provided.
  • the strip 421 and the baffle 422 are disposed on the strip 421, and the baffle 422 is located in the first light transmissive portion. Between the portion 42a and the second light transmitting portion 42b, and the baffle 422 is vertically connected to the light shielding layer 42c of the cover 42.
  • the baffle 422 is made of an opaque material.
  • the baffle 422 can further block the light emitted by the light emitter 411 on the laser ranging sensor 41 to the surface of the cover 42 toward the light emitter 411 to further prevent crosstalk. .
  • the cover 42 can also be a strip structure.
  • the cover 42 is disposed on one side of the laser ranging sensor 41 with the baffle 422, and the baffle 422 is located between the first transparent portion 42a and the second transparent portion 42b. In the above manner, the baffle 422 and the cover 42 are separately formed, which facilitates the forming of the cover 42.
  • the laser distance measuring device 400 can prevent the light emitter from being disposed between the first light transmitting portion 42a and the second light transmitting portion 42b.
  • the light is emitted to a position other than the first light transmitting portion 42a and reflected to the light receiver, thereby further preventing crosstalk caused by the light, and ensuring the accuracy of the measurement result of the laser ranging device 100.
  • the laser distance measuring device provided by the utility model is provided with a first light transmitting portion and a second light transmitting portion at positions corresponding to the light receiver and the light emitter of the laser ranging sensor on the cover plate to facilitate light transmission. And receiving light, and then providing a light shielding layer between the first light transmitting portion and the second light transmitting portion, by which the light beam emitted from the light emitter to the outside of the first light transmitting portion can be blocked, thereby preventing the light beam from being reflected to The crosstalk caused by the emission and reception of infrared rays on the optical receiver ensures the laser ranging sensor for the purpose The accuracy of the measurement results of the standard distance.

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

一种激光测距装置（100）、摄像装置及其终端，包括激光测距传感器（11）及盖板（12），激光测距传感器（11）内设间隔设置的光发射器（111）及光接收器（112），盖板（12）设于激光测距传感器（11）上方，盖板（12）包括第一透光部（121）、第二透光部（122）及遮光层（123），第一透光部（121）及第二透光部（122）分别对应光发射器（111）及光接收器（112）设置，光发射器（111）将光束经由第一透光部（121）发出至被测物体上，经由被测物体将光束反射并透过第二透光部（122）至光接收器（112）上并进行接收，遮光层（123）设于第一透光部（121）及第二透光部（122）之间。该激光测距装置（100）、摄像装置及其终端，利用盖板（12）上的遮光层（123）将光发射器（111）发射至第一透光部（121）以外的光束遮挡，防止该光束反射至光接收器（112）上而对红外线的发射及接收造成的串扰，保证激光测距传感器（11）对于目标距离测量结果的准确性。

Description

激光测距装置、摄像装置及其终端
本实用新型要求2015年12月18日递交的实用新型名称为“激光测距装置、摄像装置及其终端”的申请号201521071449.3的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本实用新型涉及光学领域，尤其涉及一种激光测距装置、摄像装置及其终端。
背景技术
近红外激光测距技术可以根据光子的飞行时间快速测量被测物体到传感器的距离。而其中的激光测距传感器可通过发射和接收近红外线，然后通过发射光子和接收光子的TOF(time of fly，飞行时间)来测量目标距离。当将该测距技术应用于具有拍照功能的终端，比如手机时，利用该距离信息可用于加快自动聚焦速度，以获得较佳的拍照体验。
目前，由于激光测距传感器通常需要发射和接收近红外线，因此在终端的外壳上通常需要增加一个光学窗口，并且该光学窗口的表面通常采用一片透光盖板将光学窗口封闭，同时利用该透光盖板可使得激光测距传感器上的光发射器能够将光线发出至被测物体上，经由被测物体将该光线反射并透过该光学窗口反射至光接收器上进行接收，以达到测量目标距离的目的。然而，当光发射器发出的光线经由透光盖板直接反射至光接收器上时，该光线容易对红外线产生串扰，进而导致测量目标距离的结果不够准确，从而无法加快自动对焦速度。
实用新型内容
本实用新型所提供的一种激光测距装置，可以防止光发射器发出的光线经由盖板发射至光接收器上对红外线产生的串扰，保证测量目标距离的结果准确性。
另，本实用新型还提供了一种应用该激光测距装置的摄像装置。
相应地，本实用新型还提供了一种应用该摄像装置的终端。
为了解决上述技术问题，本实用新型提供了一种激光测距装置，包括激光测距传感器以及盖板，所述激光测距传感器内设置有间隔设置的光发射器以及光接收器，所述盖板设于所述激光测距传感器上，并且所述盖板包括第一透光部、第二透光部以及遮光层，所述第一透光部以及第二透光部分别对应所述光发射器以及光接收器设置，所述光发射器将光束经由所述第一透光部发出至被测物体上，经由所述被测物体将所述光束反射并透过所述第二透光部至所述光接收器上并进行接收，所述遮光层设于所述第一透光部以及第二透光部之间。
另外，本实用新型还提供了一种摄像装置，所述摄像装置包括摄像头组件、处理器以及如上述的激光测距装置，所述处理器与所述摄像头组件电性连接，所述激光测距装置与所述处理器电性连接，所述激光测距装置将测量结果发送给所述处理器，所述处理器将所述测量结果反馈至所述摄像头组件上，以使所述摄像头组件接收所述测量结果并进行拍摄聚焦。
另外，本实用新型还提供了一种终端，包括壳体以及上述的摄像装置，所述摄像装置装设于所述壳体内。
本实用新型所提供的激光测距装置、摄像装置以及终端，通过在盖板上对应于激光测距传感器的光接收器以及光发射器的位置处设置第一透光部和第二透光部，以便于透光和接收光，然后在第一透光部和第二透光部之间设置遮光层，利用该遮光层能够将光发射器发射至第一透光部以外的光束遮挡，从而防止该光束反射至光接收器上而对红外线的发射以及接收造成的串扰，保证了激光测距传感器对于目标距离的测量结果的准确性。
附图说明
为了更清楚地说明本实用新型的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本实用新型的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本实用新型第一实施例提供的激光测距装置的结构示意图；
图2是本实用新型第一实施例提供的盖板的立体图；
图3是本实用新型第一实施例提供的盖板的另一种结构示意图；
图4是本实用新型第二实施例提供的激光测距装置的结构示意图；
图5是本实用新型第三实施例提供的激光测距装置的结构示意图；
图6是本实用新型第三实施例提供的盖板的结构示意图；
图7是本实用新型第三实施例提供的盖板的另一结构的示意图；
图8是本实用新型第四实施例提供的激光测距装置的结构示意图。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
为便于描述，这里可以使用诸如“在…之下”、“在…下面”、“下”、“在…之上”、“上”等空间相对性术语来描述如图中所示的一个元件或特征与另一个(些)元件或特征的关系。可以理解，当一个元件或层被称为在另一元件或层“上”、“连接到”或“耦接到”另一元件或层时，它可以直接在另一元件或层上、直接连接到或耦接到另一元件或层，或者可以存在居间元件或层。
可以理解，这里所用的术语仅是为了描述特定实施例，并非要限制本实用新型。在这里使用时，除非上下文另有明确表述，否则单数形式“一”和“该”也旨在包括复数形式。进一步地，当在本说明书中使用时，术语“包括”和/或“包含”表明所述特征、整体、步骤、元件和/或组件的存在，但不排除一个或多个其他特征、整体、步骤、元件、组件和/或其组合的存在或增加。说明书后续描述为实施本实用新型的较佳实施方式，然所述描述乃以说明本实用新型的一般原则为目的，并非用以限定本实用新型的范围。本实用新型的保护范围当视所附权利要求所界定者为准。
本实用新型实施例提供的一种终端，包括壳体(图未示)以及摄像装置，所述摄像装置装设于所述壳体内。其中，所述摄像装置包括摄像头组件(图未示)、处理器(图未示)以及激光测距传感器100，所述处理器与所述摄像头组件电性连接，所述激光测距装置100与所述处理器电性连接，所述激光测距装置100将测量结果发送给所述处理器，所述处理器将所述测量结果反馈至所述摄像头组件上，以使所述摄像头组件接收所述测量结果并进行拍摄聚焦。
在本实用新型的实施例中，所述摄像装置可为照相机或监视器等。所述终端可为但并不局限于手机、笔记本电脑、平板电脑等终端。本实施例中，以所述终端为手机为例进行说明。
其中，所述摄像装置上设置有外壳(图未示)，所述激光测距装置100设于所述摄像装置的外壳内，并且所述外壳上设置有透光窗口(图未示)，所述激光测距装置100透过所述透光窗口将光束发出至被测物体上，以实现被测物体将光束反射回来，从而得到测量结果。所述处理器通过处理所述测量结果并将所述测量结果反馈至所述摄像头组件上，从而实现在所述摄像头进行拍摄时加快所述摄像头的聚焦速度的目的，进而获得较佳的拍照体验。
具体地，请一并参阅图1至图3，为本实用新型第一实施例提供的激光测距装置100，所述激光测距装置100包括激光测距传感器11以及盖板12。所述激光测距传感器11内设置有间隔设置的光发射器111以及光接收器112。所述盖板12设于所述激光测距传感器11上方，并且所述盖板12包括第一透光部121、第二透光部122以及遮光层123，所述第一透光部121以及第二透光部122分别对应所述光发射器111以及所述光接收器112设置。所述光发射器111将光束经由所述第一透光部121发出至所述被测物体上，经由所述被测物体将所述光束反射并所述第二透光部122至所述光接收器112上并进行吸收。所述遮光层123设于所述第一透光部121以及第二透光部122之间，所述遮光层123用以遮挡所述光发射器111发射至所述第一透光部121之外的光束。
具体地，当所述激光测距装置100装设于所述透光窗口内时，所述光发射器111通过所述盖板12的第一透光部121将光束发出，并经由所述透光窗口射出并到达被测物体上，然后经被测物体将所述光束反射，并通过所述透光窗口将该光束经由第二透光部122反射至所述光接收器112上，并进行吸收，通 过记录并处理该光束发出到达被测物后到返回被112接收所经历的时间，从而实现测定目标距离的目的。
本实施例中，所述盖板12的材质为透明材料，并且所述遮光层123嵌设于所述盖板12的内部。所述盖板12可采用光学级的透明材料制成，比如光学玻璃。所述盖板12的形状可根据所述透光窗口的形状对应设置，如当该透光窗口为圆形孔或者方形孔时，所述盖板12即为相对应的圆形板状结构或者方形板状结构。
为了保证所述遮光层123的遮挡效果，所述遮光层123夹设于所述第一透光部121以及第二透光部122之间。具体地，所述第一透光部121以及第二透光部122可通过粘胶的方式分别与所述遮光层123粘贴在一起。如，将所述第一透光部121先放置好，然后将所述遮光层123粘贴于所述第一透光部121上，再将所述第二透光部122粘贴于所述遮光层123上。此外，在加工所述盖板12时，所述盖板12还可采用在注塑成型时，先成形所述第一透光部121，然后将所述遮光层123放置在模具的型腔内，然后再进行注塑，从而能够使得形成的所述遮光层123夹设于所述第一透光部121以及第二透光部122之间。
进一步地，请参阅图3，为所述遮光层123与所述盖板12的另一种形成结构的示意图。如图3所示，所述盖板12内部开设有一容置槽(图未示)，所述遮光层123固定于所述容置槽内。由于所述容置槽开设于所述盖板12内部，因此，所述容置槽12与所述盖板12的边缘还具有一定的距离，即，所述遮光层123与所述盖板12的边缘具有一定的距离，因此，通过该种方式形成的所述盖板12的整体结构强度较佳。
优选地，所述遮光层123可为金属层，并且所述遮光层123可为铝片、铁片或者钢片等。由于金属具有良好的遮光性能，故而当所述遮光层123采用金属层时，能够保证其良好的遮光效果。此外，为了进一步保证遮光效果，当所述遮光层123采用铝片时，还可将该铝片进行氧化后，再嵌入所述盖板12中。当然，可以理解的是，在其他实施例中，所述遮光层123还可为石墨片或者是其他遮光材料。
本实用新型第一实施例提供的激光测距装置100，通过在所述盖板12上设置所述遮光层123，并且所述遮光层123嵌设于所述盖板12内部，从而能 够遮挡所述光发射器111发射至所述第一透光部121以外的光束，从而防止该光束反射至所述光接收器112上进行接收而对所述激光测距装置100的测距造成干扰。此外，由于所述遮光层123采用金属层，由于金属具有良好的遮光性能，因此，能够进一步保证所述遮光层123的遮光效果。
请参阅图4，为本实用新型第二实施例提供的激光测距装置200的结构示意图。所述激光测距装置200包括激光测距传感器21以及盖板22，所述激光测距传感器21内设置有间隔设置的光发射器211以及光接收器212。所述盖板22设于所述激光测距传感器21的上方，并且所述盖板22包括第一透光部221、第二透光部222以及遮光层223，所述第一透光部221以及第二透光部222分别对应所述光发射器211以及所述光接收器212设置，所述光发射器221将光束经由所述第一透光部221发出至被测物体上，经由所述被测物体将所述光束反射并通过所述第二透光部222反射至所述光接收器212上进行接收。所述遮光层223设于所述第一透光部221以及第二透光部222之间。
本实用新型第二实施例提供的激光测距装置200与第一实施例提供的激光测距装置100的区别之处在于：所述遮光层223设于所述盖板22的表面，并露出所述第一透光部221以及第二透光部222。
具体地，所述盖板22为透明材料，将所述遮光层223设于所述盖板22的表面上，以防止所述光发射器211将光束经由所述第一透光部221之外的位置发出。优选地，所述遮光层223可为贴设于所述盖板22表面的金属层、石墨片或者涂刷于所述盖板22表面的黑色油墨层，以保证其遮光效果。此外，当所述遮光层223为金属层时，可选择做了表面氧化的铝片、铁片或者钢片等材料。可以理解的是，在其他实施例中，所述遮光层223还可为贴设于所述盖板22表面的遮光布。
当所述遮光层223设于所述盖板22的表面时，相对应所述第一透光部221以及第二透光部222的位置处可镂空设置，以露出所述第一透光部221以及第二透光部222。
本实用新型第二实施例提供的激光测距装置200，通过将所述遮光层223设于所述盖板22的表面，并在相对应所述第一透光部221以及第二透光部222的位置处露出所述第一透光部221以及第二透光部222，从而能够保证所述光 发射器211能够透过所述第一透光部221将光线发出的同时，也能够保证所述光发射器211发射至所述第一透光部221之外的光线被所述遮光层223遮挡。此外，由于所述遮光层223设于所述盖板22的表面，故而所述遮光层223可采用贴设或者涂刷的方式设置于所述盖板22的表面，便于所述盖板22的加工以及便于所述遮光层223的形成。
请一并参阅图5以及图7，为本实用新型第三实施例提供的激光测距装置300的结构示意图。所述激光测距装置300包括激光测距传感器31以及盖板32。
本实用新型第三实施例提供的激光测距装置300与第二实施例提供的激光测距装置200的不同之处在于：所述盖板32为不透光材料，并且所述盖板32的第一透光部321以及第二透光部322均为开设于所述盖板32上的通孔。
本实施例中，所述盖板32的材质可选择金属或者石墨等。即，所述盖板32可选择氧化的铝板、铁板或者石墨块等。所述盖板32在所述第一透光部321以及第二透光部322的其他位置均为不透光材料，即为所述遮光层323，从而能够进一步防止所述激光测距传感器31的光发射器311将光束发射至所述第一透光部321之外的位置，进而防止该光束反射至所述激光测距传感器31的光接收器312上。具体地，在加工所述盖板32时，可在模具中安装具有两个透光孔的金属件，注塑入透明材料加工后，该透光孔中被填充有该透光材料。
进一步地，所述第一透光部321以及第二透光部322可为方形孔或者圆形孔，以便于所述光发射器311发射光以及所述光接收器312接收光。此外，所述第一透光部321以及第二透光部322的横截面形状可为T形或者锥形，以便于所述光发射器311的出光。
为了进一步地改进，所述第一透光部321以及第二透光部322的两端开口上分别覆盖有透光挡板(图未示)。通过在所述第一透光部321以及第二透光部322的两端开口设置所述透光挡板的方式，从而能够防止灰尘或者杂物进入所述第一透光部321以及第二透光部322内，保证所述盖板32的清洁的同时，也防止灰尘或者杂物对光线反射造成的干扰。
本实用新型第三实施例提供的激光测距装置300，通过设置该盖板32为不透明材料，并且该盖板32的第一透光部321以及第二透光部322均为开设 于该盖板32上的通孔，从而能够实现在对应于激光测距传感器31的光发射器311以及光接收器312的位置处为透光，而盖板32的其他位置均为遮光，从而进一步防止该光发射器311发射至第一透光部321的其他位置处的光束被反射至光接收器312上被吸收而对测距造成的干扰，保证了测距的结果准确性。
请参阅图8，为本实用新型第四实施例提供的激光测距装置400的示意图，所述激光测距装置400包括所述激光测距装置300包括激光测距传感器41以及盖板42。
本实用新型第四实施例提供的激光测距装置400与第一实施例提供的激光测距装置100的不同之处在于：所述盖板42为一体成型的T字形结构，所述盖板42包括条板421以及挡板422，所述盖板42的第一透光部42a以及第二透光部42b均设于所述条板421上，所述挡板422位于所述第一透光部42a以及第二透光部42b之间，并且所述挡板422垂直连接于所述盖板42的遮光层42c。
本实施例中，所述挡板422为不透光材质制成。所述挡板422能够进一步遮挡所述激光测距传感器41上的所述光发射器411发射至所述盖板42朝向所述光发射器411的表面上的光线，进一步防止出现光线串扰的情况。
可以理解的是，在其他实施例中，所述盖板42还可为条形结构。所述盖板42朝向所述激光测距传感器41的一面上设置有所述挡板422，并且所述挡板422位于所述第一透光部42a以及第二透光部42b之间。采用上述这种方式，所述挡板422与所述盖板42单独成型，可便于所述盖板42的加工成型。
本实用新型第四实施例提供的激光测距装置400，通过将所述挡板422设于所述第一透光部42a以及第二透光部42b之间，从而能够防止所述光发射器将光线发射至第一透光部42a以外的位置并反射至所述光接收器上，进一步防止了该光线产生的串扰，保证所述激光测距装置100的测量结果的准确性。
本实用新型所提供的激光测距装置，通过在盖板上对应于激光测距传感器的光接收器以及光发射器的位置处设置第一透光部和第二透光部，以便于透光和接收光，然后在第一透光部和第二透光部之间设置遮光层，利用该遮光层能够将光发射器发射至第一透光部以外的光束遮挡，从而防止该光束反射至光接收器上而对红外线的发射以及接收造成的串扰，保证了激光测距传感器对于目 标距离的测量结果的准确性。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、“一些示例”或类似“第一实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本实用新型的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述是本实用新型的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本实用新型的保护范围。

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  1. 一种激光测距装置，其特征在于，所述激光测距装置包括激光测距传感器以及盖板，所述激光测距传感器内设置有间隔设置的光发射器以及光接收器，所述盖板设于所述激光测距传感器上方，并且所述盖板包括第一透光部、第二透光部以及遮光层，所述第一透光部以及第二透光部分别对应所述光发射器以及光接收器设置，所述光发射器将光束经由所述第一透光部发出至被测物体上，经由所述被测物体将所述光束反射并透过所述第二透光部至所述光接收器上进行接收，所述遮光层设于所述第一透光部以及第二透光部之间。
  2. 根据权利要求1所述的激光测距装置，其特征在于，所述遮光层嵌设于所述盖板内部。
  3. 根据权利要求1所述的激光测距装置，其特征在于，所述盖板为不透光材料，所述第一透光部以及第二透光部均为开设于所述盖板上的通孔。
  4. 根据权利要求3所述的激光测距装置，其特征在于，所述第一透光部以及第二透光部的两端开口上分别覆盖有透光挡板。
  5. 根据权利要求1所述的激光测距装置，其特征在于，所述盖板的材质为透明材料，所述遮光层设于所述盖板的表面，并露出所述第一透光部以及第二透光部。
  6. 根据权利要求5所述的激光测距装置，其特征在于，所述遮光层为贴设于所述盖板表面的金属层、石墨片，或者所述遮光层为涂刷于所述盖板表面的黑色油墨层。
  7. 根据权利要求1所述的激光测距装置，其特征在于，所述盖板为一体成型的T字形结构，包括条板以及挡板，所述第一透光部以及第二透光部设于 所述条板上，所述挡板位于所述第一透光部和第二透光部之间，并且所述挡板垂直连接于所述遮光层。
  8. 根据权利要求1所述的激光测距装置，其特征在于，所述盖板为条形结构，所述盖板朝向所述激光测距传感器的一面上设置挡板，并且所述挡板位于所述第一透光部以及第二透光部之间。
  9. 一种摄像装置，其特征在于，所述摄像装置包括摄像头组件、处理器以及如权利要求1至8任意一项所述的激光测距装置，所述处理器与所述摄像头组件电性连接，所述激光测距装置与所述处理器电性连接，所述激光测距装置将测量结果发送给所述处理器，所述处理器将所述测量结果反馈至所述摄像头组件上，以使所述摄像头组件接收所述测量结果并进行拍摄聚焦。
  10. 一种终端，其特征在于，所述终端包括壳体以及如权利要求9所述的摄像装置，所述摄像装置装设于所述壳体内。
PCT/CN2016/082554 2015-12-18 2016-05-18 激光测距装置、摄像装置及其终端 WO2017101253A1 (zh)

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