WO2020177710A1 - 灯光模组及移动终端 - Google Patents
灯光模组及移动终端 Download PDFInfo
- Publication number
- WO2020177710A1 WO2020177710A1 PCT/CN2020/077739 CN2020077739W WO2020177710A1 WO 2020177710 A1 WO2020177710 A1 WO 2020177710A1 CN 2020077739 W CN2020077739 W CN 2020077739W WO 2020177710 A1 WO2020177710 A1 WO 2020177710A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- electrical contact
- contact point
- module
- detection module
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V25/00—Safety devices structurally associated with lighting devices
- F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
- F21V25/04—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02257—Out-coupling of light using windows, e.g. specially adapted for back-reflecting light to a detector inside the housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
Definitions
- the present disclosure relates to the technical field of communication equipment, and in particular to a lighting module and a mobile terminal.
- the light module usually installed in the mobile terminal in the related art
- the light source in the light module is usually a light-emitting diode LED or a laser chip.
- the light intensity of the light source is high, it cannot directly illuminate the outside. For this reason, it is usually set With the light-transmitting element, the light emitted by the light source needs to pass through the light-transmitting element and enter the outside world. Normally, the light-transmitting element is directly exposed to the outside world. If the mobile terminal breaks, falls off, or shifts due to a drop or impact, it is easy to cause the light emitted by the light source to directly enter the outside, resulting in the safety of the light module. Low sex.
- the embodiments of the present disclosure provide a light module and a mobile terminal, so as to solve the problem of low safety in use of the light module when the light-transmitting element of the mobile terminal breaks, falls off, or is displaced.
- a lighting module including:
- a support the support has a light path channel
- a substrate the substrate is connected to the support and is located at one end of the optical path channel, the substrate is provided with a light source, and the light source is located in the optical path channel;
- a light-transmitting element is connected to the support body to seal the opening at the other end of the light path channel;
- the side of the light-transmitting element facing the light source is provided with a first electrical contact point, a second electrical contact point, and a photosensitive coating capable of converting the light energy of the light source into electrical energy, the first electrical contact point and the second electrical contact point.
- the two electrical contact points are electrically connected through the photosensitive coating, and the first electrical contact point and the second electrical contact point are used to connect with the detection module for the detection module to detect the first electrical contact point and the second electrical contact point.
- the value of the voltage between electrical contacts is provided with a first electrical contact point, a second electrical contact point, and a photosensitive coating capable of converting the light energy of the light source into electrical energy
- the embodiments of the present disclosure also provide a mobile terminal, a light module, a detection module, and a driving module for controlling the light source of the light module to emit light, the driving module is electrically connected to the detection module; among them,
- the lighting module includes: a support body having an optical path channel;
- a substrate the substrate is connected to the support and is located at one end of the optical path channel, the substrate is provided with a light source, and the light source is located in the optical path channel;
- a light-transmitting element is connected to the support body to seal the opening at the other end of the light path channel;
- the side of the light-transmitting element facing the light source is provided with a first electrical contact point, a second electrical contact point, and a photosensitive coating capable of converting the light energy of the light source into electrical energy, the first electrical contact point and the second electrical contact point.
- the two electrical contact points are electrically connected through the photosensitive coating, and the first electrical contact point and the second electrical contact point are used to connect with the detection module for the detection module to detect the first electrical contact point and the second electrical contact point.
- the value of the voltage between electrical contacts is provided with a first electrical contact point, a second electrical contact point, and a photosensitive coating capable of converting the light energy of the light source into electrical energy
- the first electrical contact point and the second electrical contact point are connected by arranging a photosensitive coating on the light-transmitting element, so that when the light-transmitting element breaks, falls off or is displaced, the detection module detects the first electrical contact.
- the voltage between the contact point and the second electrical contact point is abnormal, and the drive module is used to control the light source to stop emitting light, which can effectively prevent the light from the light source from directly emitting. Therefore, the light module provided by the embodiment of the present disclosure improves the safety of using the light module.
- Figure 1 is a structural diagram of a light module provided by an embodiment of the present disclosure
- FIG. 2 is a structural diagram of a light-transmitting element in a light module provided by an embodiment of the present disclosure
- FIG. 3 is a schematic diagram of light emission control of a light source in a mobile terminal provided by an embodiment of the present disclosure.
- an embodiment of the present disclosure provides a light module, including:
- a support body 101 the support body 101 having an optical path channel 1011;
- the substrate 102 is connected to the support 101 and is located at one end of the optical path channel 1011, the substrate 102 is provided with a light source 1021, and the light source 1021 is located in the optical path channel 1011;
- the light-transmitting element 103 is connected to the support body 101 to seal the opening at the other end of the light path channel 1011; wherein,
- the side of the light-transmitting element 103 facing the light source 1021 is provided with a first electrical contact point 1031, a second electrical contact point 1032, and a photosensitive coating 1033 capable of converting the light energy of the light source into electrical energy.
- the electrical contact point 1031 and the second electrical contact point 1032 are electrically connected through the photosensitive coating 1033, and the first electrical contact point 1031 and the second electrical contact point 1032 are used to connect to the detection module 104 for the detection module 104 detects the voltage value between the first electrical contact point 1031 and the second electrical contact point 1032.
- the above-mentioned detection module may be disposed on the above-mentioned substrate 102.
- the above-mentioned detection module may also be an external detection module, and the external detection module refers to
- the components in the mobile terminal other than the light module may be, for example, a part of the circuit of the main board of the mobile terminal, and it is not further limited herein.
- the above-mentioned lighting module may be applied in different scenarios.
- the above-mentioned lighting module may be a floodlight module.
- the structure of the aforementioned light source 1021 can be set according to actual needs.
- the light source 1021 can be a laser chip or a light emitting diode.
- the laser chip may be a Vertical Cavity Surface Emitting Laser (VCSEL) or a Laser Diode (LD) light emitting diode may be an infrared LED.
- VCSEL Vertical Cavity Surface Emitting Laser
- LD Laser Diode
- the light source 1021 is a vertical cavity surface emitting laser as an example for detailed description.
- the above-mentioned substrate 102 may be a substrate for packaging a vertical cavity surface emitting laser.
- the substrate is provided with a circuit structure and can be electrically connected to the light source 1021.
- the light source 1021 can be connected to the driving module 105 through the substrate 102 and the driving module 105 Control the light emitting state of the light source.
- the supporting body 101 may be a hollow structure with open ends, and the hollow part forms the optical path 1011. Specifically, the shape of the supporting body 101 can be set according to actual needs, as long as it can support the light-transmitting element 103.
- the support body 101 may be adhesively connected to the light-transmitting element 103, and the connection relationship between the support body 101 and the substrate 102 may be set according to actual needs.
- the support body The 101 and the substrate 102 can be integrally formed.
- the glue can also be used for bonding and fixed connection.
- the driving module can control the light source 1021 to emit light.
- the light from the light source 1021 enters the surface of the light-transmitting element 103 through the optical path channel 1011, and then enters the outside after passing the light-transmitting element 103.
- the detection module 104 can detect that the first electrical contact point 1031 and the second electrical contact point 1032 are electrically connected through the photosensitive coating 1033.
- the detection module 104 When the light-transmitting element 103 is damaged, broken or falling off), the detection module 104 will detect that the electrical connection between the first electrical contact point 1031 and the second electrical contact point 1032 is disconnected, and the voltage is 0; when the light-transmitting element 103 is displaced At this time, the area of the photosensitive coating 1033 in the optical path 101 will change, so that the detection module 104 will detect that the voltage between the first electrical contact point 1031 and the second electrical contact point 1032 will increase or decrease . At this time, the detection module 104 can output a control signal to the driving module 105 to control the detection module 104 to turn off the light source 1021 so that the light source 1021 stops emitting light. In this way, the light from the light source 1021 can be prevented from being emitted directly, thereby improving the safety of the light module.
- the first electrical contact point 1031 and the second electrical contact point 1032 are connected by providing a photosensitive coating 1033 on the light-transmitting element 103, so that when the light-transmitting element 103 is broken, dropped or displaced, the detection module 104 detects that the voltage between the first electrical contact point 1031 and the second electrical contact point 1032 is abnormal, and controls the light source to stop emitting light through the driving module 105, thereby effectively preventing the light from the light source 1021 from directly emitting. Therefore, the light module provided by the embodiment of the present disclosure improves the safety of using the light module.
- the position of the above-mentioned photosensitive coating can be set according to actual needs.
- at least a part of the photosensitive coating is located in the optical path 1011.
- the detection module 104 can determine whether the light-transmitting element 103 is intact by detecting the electrical signals of the first electrical contact point 1031 and the second electrical contact point 1032.
- the detection module described above may include a resistor and a control chip, and both ends of the resistor may be directly connected between the first electrical contact point 1031 and the second electrical contact point 1032.
- the control The chip can detect the voltage across the resistor.
- the detection module 104 detects that the voltage is 0, it can be determined that the light-transmitting element 103 is damaged.
- other detection methods can also be used for detection, which will not be repeated here.
- the detection module 104 and the driving module 105 can be designed according to the size requirements of the light module.
- the detection module 104 and the driving module 105 can be arranged inside the light module;
- the detection module 104 and the driving module 105 may also be arranged outside the lighting module, and may be arranged adjacent to the lighting module.
- the connection manner of the first electrical contact point 1031 and the second electrical contact point 1032 to the detection module 104 can be set according to actual needs.
- the above-mentioned light module further includes a first conductive wire and a second conductive wire.
- One end of the first conductive wire is electrically connected to the first electrical contact, and the other end is electrically connected to the detection module.
- Connection; one end of the second conductive wire is connected to the second electrical contact point, and the other end is electrically connected to the detection module.
- the above-mentioned first conductive wire and the second conductive wire may be arranged on the support body 101.
- the first conductive wire is located at an end of the support body 101 facing the light-transmitting element 103 A first electrical connection point is formed, and the first electrical connection point is electrically connected to the first electrical contact point;
- the second conductive wire is formed with a first electrical connection point at one end of the support body 101 facing the light-transmitting element 103 Two electrical connection points, the second electrical connection point is electrically connected to the second electrical contact point.
- the parts of the first conductive wire and the second conductive wire other than the first electrical connection point and the second electrical connection point may be arranged on the inner and outer surfaces of the side wall of the support body 101, or may be arranged on the support body.
- the inside of the side wall 101 is not further limited here.
- the first electrical contact point and the second point contact point are respectively electrically connected to the substrate through the first conductive line and the second conductive line, and then electrically connected to the detection module 104 through the substrate. Since the first conductive wire and the second conductive wire are arranged on the support body 101, the electrical connection between the first electrical contact point 1031 and the second electrical contact point 1032 and the detection module 104 is realized, and the structure is simple and easy to install.
- the area corresponding to the light path channel 1011 on the side of the light-transmitting element 103 facing the light source is a light-transmitting area
- the light-transmitting area is provided with an optical structure area 1034 and a At least a part of the photosensitive coating layer 1033, and the photosensitive coating layer 1033 and the optical structure area 1034 do not overlap.
- the above-mentioned optical structure area 1034 is usually provided with a specific optical structure for diffusing the laser beam with a small angle emitted by the laser chip into a large-angle uniform light surface or spot, that is, the optical structure area functions as a divergent beam.
- the energy density of the original laser with good directionality and concentrated energy is reduced after being diffused by the light-transmitting element, and it becomes a product that meets safety regulations.
- the size and structure of the optical structure area 1034 can be set according to actual needs, which is not further limited here.
- the shape of the photosensitive coating 1033 can be set according to actual needs. As shown in FIG. 2, in this embodiment, the photosensitive coating 1033 is arranged in strips. Specifically, in an optional embodiment, the first electrical contact point 1031 and the second electrical contact point 1032 are located on the same side of the optical structure area 1034, and the photosensitive coating 1033 is disposed around the optical structure area 1034 .
- the above-mentioned photosensitive coating 1033 is generally arranged in a "C" shape. In this way, the optical structure area 1034 will not be affected, and at the same time, the comprehensiveness of detecting whether the light-transmitting element 103 is broken can be improved.
- first electrical connection point and the second electrical connection point may be metal connecting pieces.
- the metal connecting pieces may be arranged to be elastically connected to the support body 101, so that after the light-transmitting element 103 is installed and fixed , The metal connecting piece can be abutted with the corresponding electrical contact point to achieve electrical connection.
- the foregoing first electrical contact point 1031 and the second electrical contact point 1032 are both metal conductive sheets.
- the metal conductive sheet may be arranged in a square shape, and the side length of the metal conductive sheet may be greater than the width of the photosensitive coating 1033 to facilitate contact with the first electrical connection point and the second electrical connection point.
- a collimating element 106 can also be provided in the above-mentioned optical path channel 1011.
- the collimating element 106 is a lens that can convert the incident light into substantially parallel light. The light shoots out. In this way, the light uniformity of the light module can be improved.
- the embodiments of the present disclosure also provide a mobile terminal, which includes the above-mentioned light module, a detection module, and a driving module for controlling the light source of the light module to emit light; wherein,
- the detection module is electrically connected to the first electrical contact point and the second electrical contact point in the light module;
- the driving module is electrically connected with the detection module.
- the realization of the structure and function of the above-mentioned light module, detection module, and driving module can refer to the above-mentioned embodiment, which will not be repeated here. Since the light module in the above-mentioned embodiment is adopted, the implementation of the present disclosure is The mobile terminal provided in the example has all the beneficial effects of the above-mentioned lighting module.
Abstract
Description
Claims (10)
- 一种灯光模组,包括:支撑体,所述支撑体具有光路通道;基板,所述基板与所述支撑体连接,位于所述光路通道的一端,所述基板上设有光源,所述光源位于所述光路通道内;透光元件,所述透光元件与所述支撑体连接,以密封所述光路通道另一端的开口;其中,所述透光元件朝向所述光源的侧面设有第一电接触点、第二电接触点以及能够将所述光源的光能转化为电能的感光涂层,所述第一电接触点和第二电接触点通过所述感光涂层电连接,所述第一电接触点和第二电接触点用于与检测模块连接,以供所述检测模块检测所述第一电接触点和第二电接触点之间的电压值。
- 根据权利要求1所述的灯光模组,其中,所述检测模块设置在所述基板上,或者所述检测模块为外部的检测模块。
- 根据权利要求1所述的灯光模组,其中,所述感光涂层至少部分位于所述光路通道内。
- 根据权利要求1所述的灯光模组,还包括第一导电线和第二导电线,所述第一导电线的一端与所述第一电接触电连接,另一端与所述检测模块电连接;所述第二导电线的一端与所述第二电接触点连接,另一端与所述检测模块电连接。
- 根据权利要求4所述的灯光模组,其中,所述第一导电线和所述第二导电线设置在所述支撑体上,其中,所述第一导电线在所述支撑体朝向所述透光元件的一端形成有第一电连接点,所述第一电连接点与所述第一电接触点电连接;所述第二导电线在所述支撑体朝向所述透光元件的一端形成有第二电连接点,所述第二电连接点与所述第二电接触点电连接。
- 根据权利要求1所述的灯光模组,其中,所述透光元件朝向所述光源的侧面对应所述光路通道的区域为透光区域,所述透光区域设有光学结构区域和所述感光涂层的至少部分区域,且所述感光涂层和所述光学结构区域不 重叠。
- 根据权利要求6所述的灯光模组,其中,所述感光涂层呈条状设置。
- 根据权利要求7所述的灯光模组,其中,所述第一电接触点和第二电接触点位于所述光学结构区域的同一侧,所述感光涂层围绕所述光学结构区域设置。
- 根据权利要求1至8中任一项所述的灯光模组,其中,所述光源为激光芯片或发光二极管。
- 一种移动终端,包括如权利要求1至9中任一项所述的灯光模组、检测模块和用于控制所述灯光模组的光源发光的驱动模块;其中,所述检测模块与所述灯光模组中的第一电接触点和第二电接触点电连接;所述驱动模块与所述检测模块电连接。
Priority Applications (3)
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JP2021552657A JP2022523415A (ja) | 2019-03-07 | 2020-03-04 | ライトモジュールと移動端末 |
EP20766256.0A EP3936755A4 (en) | 2019-03-07 | 2020-03-04 | LIGHT MODULE AND MOBILE TERMINAL |
US17/467,824 US11448387B2 (en) | 2019-03-07 | 2021-09-07 | Light module and mobile terminal |
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CN201910172883.7 | 2019-03-07 | ||
CN201910172883.7A CN109751521B (zh) | 2019-03-07 | 2019-03-07 | 一种灯光模组及移动终端 |
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US17/467,824 Continuation US11448387B2 (en) | 2019-03-07 | 2021-09-07 | Light module and mobile terminal |
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US (1) | US11448387B2 (zh) |
EP (1) | EP3936755A4 (zh) |
JP (1) | JP2022523415A (zh) |
CN (1) | CN109751521B (zh) |
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US20210336402A1 (en) * | 2020-04-23 | 2021-10-28 | Analog Devices International Unlimited Company | Laser system |
FR3116382A1 (fr) * | 2020-11-16 | 2022-05-20 | Stmicroelectronics (Grenoble 2) Sas | Boîtier pour circuit intégré et procédé de fabrication |
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CN109751521B (zh) * | 2019-03-07 | 2020-07-28 | 维沃移动通信有限公司 | 一种灯光模组及移动终端 |
US11396994B1 (en) * | 2021-02-16 | 2022-07-26 | Ii-Vi Delaware, Inc. | Laser light source having diffuser element and light diverging optic |
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