WO2023123324A1 - Ensemble source de lumière et dispositif d'ajout de lumière - Google Patents

Ensemble source de lumière et dispositif d'ajout de lumière Download PDF

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Publication number
WO2023123324A1
WO2023123324A1 PCT/CN2021/143591 CN2021143591W WO2023123324A1 WO 2023123324 A1 WO2023123324 A1 WO 2023123324A1 CN 2021143591 W CN2021143591 W CN 2021143591W WO 2023123324 A1 WO2023123324 A1 WO 2023123324A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light source
housing
support frame
base
Prior art date
Application number
PCT/CN2021/143591
Other languages
English (en)
Chinese (zh)
Inventor
李学勇
蒋宏辉
廖鹏
Original Assignee
深圳易联智能电气有限公司
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 深圳易联智能电气有限公司 filed Critical 深圳易联智能电气有限公司
Priority to PCT/CN2021/143591 priority Critical patent/WO2023123324A1/fr
Publication of WO2023123324A1 publication Critical patent/WO2023123324A1/fr

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Classifications

    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
    • F21V21/096—Magnetic devices
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • F21V9/45—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity by adjustment of photoluminescent elements
    • 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
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present application relates to the technical field of light supplement lamps, in particular to a light source assembly and a light supplement device.
  • LED display screens have to take into account the requirements of brightness, energy consumption, contrast, saturation, etc.
  • high-efficiency LEDs are generally used as backlight sources, and high-efficiency LED light sources generally use short-wave high-energy blue light. Blue light with a wavelength of 400nm ⁇ 440nm has relatively high energy. At the same time, blue light in this wavelength range will increase the amount of toxins in the macular area of the eye, which seriously threatens the health of our fundus and induces blindness and eye diseases.
  • Blue light suppresses the body's production of melatonin.
  • Melatonin is a hormone that is produced from the pineal gland in the brain at night, in the dark. Its function is mainly to lower our blood pressure, glucose, and body temperature at night so that we can have a full and comfortable sleep.
  • researchers at Harvard University found that using electronic products with backlit displays for just 2 hours before going to bed can cause melatonin to be suppressed by 22%, which can lead to sleep problems such as "reduced sleep time and easy to be interrupted". Those who slept for the same amount of time were also less sleepy and lethargic than those who were less exposed to blue light before going to bed.
  • High illuminance is more harmful to the eyes than the environment.
  • the pupil When we are in a low-light environment, our eyes will switch to different visual modes, for example: the pupil will dilate, and the amount of light entering will increase to 4 to 6 times; the human eye will also change from being sensitive to green to being sensitive to blue light , which means that our eyes are receiving a lot of high-energy blue light, so when reading in the dark, most people feel the light is dazzling.
  • One of the objectives of the embodiments of the present application is to provide a light source assembly and a supplementary light device.
  • a light source assembly including:
  • each light-emitting element includes an LED light-emitting chip and a phosphor layer arranged on the LED light-emitting chip, the LED light-emitting chip emits blue light, and the phosphor layer is excited by the blue light to emit light , the light emitted by the phosphor layer is mixed with the blue light to form white light, and in the white light, the relative spectral power of light with a wavelength between 400nm and 440nm is less than or equal to 0.4, and the color rendering index Ra of the white light Greater than or equal to 60.
  • a supplementary light device including:
  • the base module includes a first magnetic attraction piece, which is used for mutual magnetic attraction with a second magnetic attraction piece arranged on the electronic product;
  • a light-emitting module comprising a lamp base housing and the light source assembly according to claim 1 arranged in the lamp base housing, the light of the light source assembly enters the screen of the electronic product through the light outlet of the lamp base housing superior.
  • the base module has a front surface for abutting against the second magnetic attraction piece, and the support frame can move on the base module in a direction parallel to the front surface .
  • the base module further includes a base housing, the base housing has a front surface for abutting against the back of the electronic product; the first magnetic attraction piece is fixed on the base On the inner wall of the housing opposite to the front surface.
  • the base housing comprises a first housing part and a second housing part, and the front surface is formed on a side of the first housing part facing away from the second housing part.
  • the second housing part includes a second housing part main body and a second housing part bracket, the second housing part bracket is rotatably arranged on the second housing part main body, and The rotation center axis of the support of the second housing part is parallel to the moving direction of the support frame.
  • the base module further includes a rechargeable battery disposed in the base housing, and a first insulating gasket is provided between the rechargeable battery and the first magnetic attraction sheet.
  • the base housing is further provided with a charging interface connected to the rechargeable battery.
  • the base module further includes a control circuit board, the control circuit board is electrically connected to the light source assembly, and a second insulating gasket is provided between the control circuit board and the rechargeable battery .
  • a button hole is provided on the side of the base shell away from the front surface, and the base module further includes a control button, and the control button communicates with the control circuit board through the button hole. electrical connection.
  • control circuit board has a circuit pattern arranged along the sliding direction of the support frame;
  • the support frame module includes a support frame shell and an elastic joint fixed on the support frame shell
  • the elastic connector is electrically connected to the light source assembly, and the elastic connector is in sliding contact with the circuit pattern.
  • the elastic connector is electrically connected to the light source assembly through a connecting wire provided in the cavity of the support frame.
  • a guide part extending along the moving direction of the support frame is formed on the side of the base shell facing the light source assembly, and the part of the control circuit board with the circuit pattern is located at the In the guide part, the support frame housing moves along the guide part.
  • the support frame module further includes a third magnetic attraction part arranged in the support frame housing, and the base module further includes a fourth magnetic attraction part arranged in the guide part, so The third magnetic attraction part and the fourth magnetic attraction part are magnetically attracted to each other.
  • the support frame housing includes a third housing part and a fourth housing part, the fourth housing part is located on a side of the third housing part facing away from the front surface;
  • the spring pin of the elastic connector protrudes at least partly from a side of the third housing part close to the front surface; the guide part is located on a side of the support frame housing close to the front surface.
  • the lamp base housing includes a lamp base tube and end caps arranged on both sides of the lamp base tube; a light source cavity is formed between the lamp base tube and the end caps, and the lamp base tube is formed with the The light outlet, the light source assembly is arranged in the light source cavity.
  • the light emitting module further includes a light source fixing plate, the light source fixing plate is fixed in the light source cavity, and the light source assembly is fixed on the side of the light source fixing plate facing the light outlet .
  • the light-emitting module further includes a light-transmitting plate, and the light-transmitting plate is disposed in the light source cavity and located on the light output side of the light source assembly.
  • the harmful blue light radiation on the screen is less than or equal to 20 ⁇ W/cm 2
  • the blue light radiation ratio on the screen is less than or equal to 2 ⁇ W/cm 2 . lm.
  • the beneficial effect of the light source assembly is that: in the white light, the relative spectral power of blue light with a wavelength between 400nm and 440nm is less than or equal to 0.4, and the color rendering index Ra of the white light is greater than or equal to 60,
  • the user's visual experience is more comfortable, which is conducive to protecting eyesight, especially the eyesight of infants and children, and reducing sub-health problems caused by excessive blue light; and, when the user uses the light source module at night, the blue light has a negative effect on the secretion of melatonin in the human body.
  • the effect of reducing the effect of sleep which helps to increase the secretion of melatonin in the human body, reduces the excitability of the human body, and enables the human body to maintain a normal sleep rhythm.
  • the beneficial effect of the supplementary light device provided by the embodiment of the present application is that: the application of the supplementary light device of the light source assembly can further reduce the proportion of blue light entering the human eye, reducing the damage of blue light to the human eye, especially when the user combines
  • the influence of blue light on the secretion of melatonin in the human body is reduced, thereby helping to increase the secretion of melatonin in the human body, reducing the excitability of the human body, and enabling the human body to maintain a normal sleep rhythm.
  • Fig. 1 is a schematic diagram of an angle of the supplementary light device provided by the embodiment of the present application, wherein the bracket of the second housing part of the base is in a retracted state;
  • Fig. 2 is a schematic view of an angle of the supplementary light device provided by the embodiment of the present application, wherein the bracket of the second housing part of the base is in an open state;
  • Fig. 3 is another perspective schematic view of the supplementary light device provided by the embodiment of the present application.
  • Fig. 4 is a schematic diagram of the cooperative relationship between the supplementary light device and the mobile phone provided by the embodiment of the present application;
  • Fig. 5 is a three-dimensional exploded schematic view of the supplementary light device provided by the embodiment of the present application.
  • Fig. 6 is a cross-sectional view of the supplementary light device provided by the embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of the light source assembly of the supplementary light device provided by the embodiment of the present application.
  • Fig. 8 is the first spectral test report of the light source assembly in the supplementary light device provided by the embodiment of the present application.
  • Fig. 9 is the second spectral test report of the light source assembly in the supplementary light device provided by the embodiment of the present application.
  • Fig. 10 is the third spectral test report of the light source component in the supplementary light device provided by the embodiment of the present application.
  • Fig. 11 is the fourth spectral test report of the light source component in the supplementary light device provided by the embodiment of the present application.
  • Fig. 12 is the fifth spectral test report of the light source assembly in the supplementary light device provided by the embodiment of the present application.
  • the embodiment of the present application first provides a light source assembly 14 , which includes a light source circuit board 141 and a plurality of light emitting elements 142 disposed on the light source circuit board 141 .
  • Each light-emitting element 142 includes at least one LED light-emitting chip and a phosphor layer arranged on the LED light-emitting chip, wherein the LED light-emitting chip is a blue light chip, which can emit blue light, and the phosphor layer emits light of other wavelengths after being excited by blue light. Light, these other wavelengths of light are mixed with blue light to get white light.
  • the relative spectral power of the blue light with a wavelength between 400nm and 440nm is less than or equal to 0.4, and the color rendering index Ra of the white light is greater than or equal to 60.
  • the color rendering index R9 of the white light emitted by it is greater than or equal to 95, and the relative spectral power of the blue light between 400nm and 440nm is less than or equal to 0.4, and the visual experience of the user is more comfortable. It is beneficial to protect the eyesight, especially the eyesight of infants and children, and reduce sub-health problems caused by excessive blue light; and, when the user uses the light source assembly 14 at night, the influence of blue light on the secretion of melatonin in the human body is reduced, thereby having It helps increase the secretion of melatonin in the human body, reduces the excitability of the human body, and enables the human body to maintain a normal sleep rhythm.
  • the relative spectral power of blue light with a wavelength between 400 nm and 440 nm is less than or equal to 0.35.
  • the color rendering index Ra of the white light is greater than or equal to 80. Further optionally, the color rendering index Ra of the white light is greater than or equal to 90. Furthermore, the color rendering index Ra of the white light is greater than or equal to 95.
  • Said phosphor layer includes one or more of yellow phosphor layer, orange phosphor layer, yellow-orange phosphor layer and red phosphor layer.
  • the yellow phosphor may include one or more of YAG (Y 3 Al 5 O 12 , yttrium aluminum garnet) and element-doped YAG.
  • the orange phosphor may include one or more of silicates, aluminates, nitrides, and oxynitrides.
  • the yellow-orange phosphor may include one or more of YAG, element-doped YAG, silicate or aluminate.
  • the red phosphor may include one or more of silicate, aluminate, nitride, oxynitride or fluoride.
  • the color temperature of the white light is 2600K-4000K. Further, the color temperature of the white light may be 2600K-3000K.
  • the white light is warm white light, which can give the user a warm and comfortable feeling, especially when the user uses the light source assembly 14 at night, the white light is conducive to the user's peace of mind and relaxation, and further facilitates the user to enter a sleep state. In this way, the light source assembly 14 can further ensure the physical and mental health of the user.
  • the color temperature of the white light is 2600K-2800K.
  • the embodiment of the present application also provides a supplementary light device 100 , which includes the above-mentioned light source assembly 14 for supplementing light to an electronic product 200 through its white light, as shown in FIG. 4 .
  • the supplementary light device 100 includes a base module 3 , a support frame module 2 and a light emitting module 1 .
  • the base module 3 is a part used for direct connection with the electronic product 200, and it includes a first magnetic sheet 32, and the first magnetic sheet 32 is used for connecting with the electronic product.
  • the second magnetic attraction pieces (not shown) on the back of the 200 are magnetically attracted to each other, so that a detachable and relatively stable connection is formed between the base module 3 and the electronic product 200 .
  • the support frame module 2 is connected between the base module 3 and the light-emitting module 1.
  • the light-emitting module 1 includes a lamp housing 11 and the light source assembly 14 mentioned in the above-mentioned embodiments.
  • the lamp housing 11 is provided with a light source chamber 110 , a light outlet 113 communicating with the light source cavity 110 is also provided, the light source assembly 14 is arranged in the light source cavity 110 of the lamp housing 11, and the white light of the light source assembly 14 exits through the light outlet 113 and is incident on the front screen of the electronic product 200 .
  • the white light from the light source assembly 14 is incident on the screen of the electronic product 200 , and enters human eyes together with the light emitted by the electronic product 200 itself.
  • the relative spectral power of the blue light in the white light is less than or equal to 0.4.
  • the blue light is mixed with the light (hereinafter referred to as the white light of the light source assembly 14 and the light of the electronic product 200).
  • the relative spectral power in the mixed light) is further reduced, and the human eye will adjust the pupil according to the ambient illuminance, so that the intensity of the light entering the human eye is constant.
  • the proportion of blue light entering the human eye can be further reduced, reducing the impact of blue light on the human body.
  • Eye damage makes the user's visual experience more comfortable and helps to protect eyesight, especially for infants and children, especially when the user uses the light source assembly 14 and electronic product 200 in combination at night; in addition, at night, the blue light is harmful to the human body
  • the influence of the secretion of melatonin is reduced, which helps to increase the secretion of melatonin in the human body, reduces the excitability of the human body, and enables the human body to maintain a normal sleep rhythm.
  • the first magnetic attraction piece 32 can be a magnet piece, and the second magnetic attraction piece can be a magnet piece, or a sheet structure of a material that can be magnetized, such as a steel sheet.
  • the second magnetic attraction sheet is fixed on the back of the electronic product 200 by means of glue or the like.
  • the second magnetic attraction piece is a magnet piece, and the first magnetic attraction piece 32 is a sheet structure of a material that can be magnetized.
  • the above-mentioned electronic product 200 may be a mobile phone, a tablet computer, a notebook computer, a desktop computer or any other electronic product capable of displaying light.
  • the supplementary light device 100 has different sizes, which are not specifically limited here.
  • the electronic product 200 will be described as a mobile phone as an example.
  • the base module 3 has a front surface 313 , and the front surface 313 is relatively flat so as to be attached to the back of the electronic product 200 .
  • the support frame housing 21 is generally in a bent shape, or in other words, a part of the support frame module 2 for connecting the lighting module 1 and a part for connecting the base mold Parts of the group 3 are relatively bent, and even relatively vertical.
  • the purpose of such setting is to make the light emitting module 1 be located in front of the front surface 313, as shown in FIG.
  • the setting of 113 and the design of the light path make the above-mentioned white light incident on the screen of the mobile phone as much as possible.
  • the second magnetic sheet is a steel sheet.
  • the purpose of such setting is that when the user does not use the mobile phone together with the supplementary light device 100, the second magnetic attraction sheet will not remain in a magnetized state, thus avoiding the attraction of the user or other objects in the surrounding environment. Affect the daily use of the user's mobile phone.
  • the base module 3 also includes a base shell 31, on which the first magnetic sheet 32 is arranged, and the base shell 31 provides a certain support for the first magnetic sheet 32 .
  • the first magnetic sheet 32 is disposed inside the base shell 31 , and the front surface 313 is a surface of the base shell 31 .
  • the purpose of this arrangement is to make the first magnetic sheet 32 invisible from the outside of the base housing 31, the base housing 31 and the exterior of the supplementary light device 100 are more beautiful, and the first magnetic sheet 32 is arranged on the base
  • the inside of the housing 31 is also more stable than the outside, even if the first magnetic piece 32 falls off, it is not easy to cause loss
  • the first magnetic attraction piece 32 is disposed on the inner wall of the base housing 31 , specifically the inner wall of the base housing 31 opposite to the front surface 313 . This makes the distance between the first magnetic attraction piece 32 and the front surface 313 the shortest, thus the magnetic attraction between the first magnetic attraction piece 32 and the second magnetic attraction piece is stronger.
  • the supporting frame module 2 can move on the base module 3 in a direction away from and close to the first magnetic attraction piece 32, specifically, the moving direction of the supporting frame module 2 relative to the base shell 31 is parallel on the front surface 313 mentioned above. This enables the light-emitting module 1 to move away from or approach the first magnetic sheet 32 , so that the supplementary light device 100 can be applied to mobile phones of different sizes.
  • the support frame module 2 When in use, the support frame module 2 is moved and adjusted along the direction parallel to the front surface 313, so that the position between the light emitting module 1 and the front surface 313 is adjusted, and then it is convenient for the user to place the mobile phone on the front surface 313, and can ensure that the light of the light-emitting module 1 illuminates the screen of the mobile phone from one side of the mobile phone, so as to avoid affecting the screen of the mobile phone while supplementing the light.
  • the base housing 31 includes a first housing portion 311 and a second housing portion 312, a front surface 313 is formed on the first housing portion 311, correspondingly , the first magnetic attraction piece 32 is disposed on the inner wall of the first casing part 311 .
  • the first housing part 311 and the second housing part 312 are installed opposite to each other, and a base cavity 310 is formed inside.
  • connection between the first housing part 311 and the second housing part 312 can be realized through detachable means such as screw locking, buckle connection and the like.
  • the second housing part 312 includes a second housing part main body 3121 and a second housing part bracket 3122, and one end of the second housing part bracket 3122 is rotatably arranged on the second housing part.
  • the base housing 31 can be stably supported on a tabletop or the like, freeing the hands of the user.
  • the stand part can be stowed away.
  • the rotation center axis of the second housing part bracket 3122 is perpendicular to the sliding direction of the support frame module 2 and parallel to the front surface 313 .
  • the purpose of setting in this way is that when the base module 3 is placed on the desktop with a suitable orientation and the sliding direction of the support frame module 2 is generally upward, the rotation center axis of the second housing part bracket 3122 is generally parallel to The horizontal plane, that is, the second housing part support 3122 can be opened backward at a certain angle relative to the user, so as to support the base module 3 .
  • the base module 3 also includes a control circuit board 36 disposed in the base cavity 310, the control circuit board 36 is electrically connected to the light source assembly 14, and the control circuit board 36
  • the light source circuit board 141 is used to control the light source assembly 14 , and then control the operation of each light emitting element 142 .
  • control circuit board 36 is located on the side of the first magnetic sheet 32 away from the front surface 313 , and a second insulating layer is provided between the control circuit board 36 and the first magnetic sheet 32 . Gasket 35. The arrangement of the second insulating spacer 35 is used to avoid mutual influence between the control circuit board 36 and the first magnetic attraction piece 32 .
  • Said second insulating spacer 35 can be a plastic spacer, a rubber spacer, a silicone spacer or the like.
  • the second insulating spacer 35 is a flexible spacer, which is used to maintain elastic compression between the control circuit board 36 and the first magnetic attraction piece 32, especially to avoid damage to the structure of the control circuit board 36 surface. damage.
  • the base module 3 also includes a rechargeable battery 34, located in the base housing 31, the rechargeable battery 34 is connected to the control circuit board 36, via the control circuit The board 36 and the light source circuit board 141 supply power to the light emitting element 142 .
  • the base module 3 is also provided with a charging interface 39, which is arranged on the base housing 31 and connected to the rechargeable battery 34, for providing electrical energy to the rechargeable battery 34 through an external power supply , the rechargeable battery 34 stores electrical energy.
  • the charging interface 39 can be provided on the first case part 311, or on the second case part 312, or on both the first case part 311 and the second case part 312, specifically according to the first case
  • the size of the body part 311 and the second housing part 312 is designed, and the position of the charging interface 39 is set to facilitate connection with the control circuit board 36 .
  • the rechargeable battery 34 is arranged between the control circuit board 36 and the first magnetic attraction piece 32, and the above-mentioned second insulating spacer 35 is arranged on the side close to the control circuit board 36, which A first insulating spacer 33 is provided on one side close to the first magnetic attraction piece 32 .
  • the control circuit board 36 has a circuit pattern 360 arranged along the sliding direction of the support frame module 2, and the support frame module 2 includes the support frame housing 21 and the 21, one end of the elastic connector 22 is electrically connected to the light source assembly 14, and the other end of the elastic connector 22 is always in sliding contact with the circuit pattern 360 during the sliding process of the support frame module 2.
  • the purpose of such setting is to avoid the use of wires and other connection structures here, and there is no need to reserve space for the storage and deployment of these wires in the base module 3 , and the space in the base module 3 is more compact.
  • the elastic connector 22 is elastically pressed against the circuit pattern 360 , and a reliable electrical connection can be maintained between the two.
  • the circuit pattern 360 is arranged on the side of the control circuit board 36 away from the front surface 313, and correspondingly, the spring pin (not shown in the figure) of the elastic connector 22 is at least partially located in the direction of the supporting frame housing 21.
  • One side of the front surface 313 is elastically and slidably contacted with the circuit pattern 360 .
  • the electrical connection can be realized by connecting wires (not shown in the figure).
  • the support frame housing 21 is provided with a support frame cavity 210 , and the connecting wires are arranged in the support frame cavity 210 and reach the light emitting module 1 until they are connected with the light source assembly 14 .
  • the support frame housing 21 includes a third housing part 211 and a fourth housing part 212, and the third housing part 211 and the fourth housing part 212 are opposite to each other.
  • the above-mentioned support frame cavity 210 is formed between the two.
  • the fourth housing part 212 may be located on a side of the third housing part 211 away from the front surface 313 .
  • the elastic connector 22 includes two above-mentioned elastic pins, and a part of each of the two elastic pins protrudes forward from the cavity 210 of the supporting frame for electrical connection with the control circuit board 36 .
  • Other parts of the elastic connector 22 are disposed in the cavity 210 of the support frame.
  • the side of the base housing 31 facing the light source assembly 14 forms a guide portion 3111 extending along the sliding direction of the support frame module 2, and the control circuit board 36 At least a portion of the portion provided with the circuit pattern 360 is located in the guide portion 3111 , and the support frame housing 21 moves along the guide portion 3111 .
  • the purpose of such setting is that since the support frame housing 21 moves away from the first magnetic attraction piece 32, it essentially moves outward from the base cavity 310, and its length in the base cavity 310 is reduced, so that the guide portion 3111 can support The frame shell 21 is abutted and guided to avoid deviation after the support frame shell 21 moves outward.
  • the guide portion 3111 is located on a side of the support frame housing 21 close to the front surface 313 . This is because the light-emitting module 1 is arranged more forward than the support frame housing 21, therefore, the overall center of gravity of the support frame module 2 and the light-emitting module 1 shifts forward, and the support frame housing 21 is easier to deviate forward when moving outward, and the guide part 3111 can support the supporting frame shell 21 backward.
  • the support frame module 2 also includes a third magnetic attraction piece 23 disposed in the support frame housing 21, and the base module 3 also includes a third magnetic attraction piece 23 disposed in the guide portion 3111.
  • the fourth magnetic attraction piece 38 inside, the third magnetic attraction piece 23 and the fourth magnetic attraction piece 38 are magnetically attracted to each other.
  • the setting of the sliding connection between the parts 3111 can be relatively simple. For example, it is only necessary to prevent the two from being easily disengaged by means of a sliding limit. In general, the sliding fit between the support frame shell 21 and the guide part 3111 costs less. Low and easier to assemble.
  • a button hole 3120 is provided on the side of the second housing part 312 away from the front surface 313 , and the base module 3 also includes a control button 37 , which is electrically connected to the control circuit board 36 via the button hole 3120 .
  • the user can perform corresponding operations on the control circuit board 36 through the control buttons 37 , such as turning on, off, and switching lighting modes.
  • the base module 3 also includes an inner connecting piece 40, which is arranged on the base shell 31, and is used for supporting with other similar brackets and the like.
  • the structural parts (not shown) are detachably connected to support the base module 3 in another way.
  • the inner connecting member 40 can be arranged on the side of the base shell 31 away from the support frame module 2.
  • the base module 3 is located above the supporting structure, and the front surface of the base module 3 313 and the mobile phone screen can face the user, and can have a certain height from the desktop, so as to adapt to the height of the user's line of sight.
  • the inner connector 40 can be recessed in the base cavity 310, so as to ensure that it can be exposed and connected with the supporting structure, and to a certain extent, it is equivalent to being hidden in the base cavity 310.
  • the inner connecting member 40 will not protrude from the surface of the base shell 31, and thus will not affect the use of the user.
  • the internal connector 40 may be a structural member with internal threads such as a nut, or a structural member with external threads such as a bolt. connected thereto; or, the inner connecting member 40 may be in the form of a buckle.
  • the form of the inner connecting member 40 is not limited, and can be specifically set according to needs.
  • the form of said supporting structure is not particularly limited here, for example, it can be a support in the form of a tripod, or a support with a larger area of the chassis, etc., which are designed to be stably supported on the complementary
  • the light device 100 is preferably on a mobile phone.
  • the lamp base housing 11 includes a lamp base tube 111111 and end caps 112 disposed on both sides of the lamp base tube 111 .
  • the light emitting module 1 further includes a light source fixing plate 12, the light source fixing plate 12 is fixed in the lamp holder housing 11, and the light source assembly 14 is fixed on the light source fixing plate 12 toward the light outlet. side of port 113.
  • the form of the light source fixing plate 12 is not limited, and in specific applications, it is appropriate to set it so that the light source fixing plate 12 can be fixed thereon.
  • the specific material of the light source fixing plate 12 can be selected from some materials with better thermal conductivity, such as aluminum plate and the like.
  • the light source fixing plate 12 is connected with the lamp base tube 111, and the heat generated by the light-emitting element 142 is transmitted to the light source circuit board 141, the light source fixing plate 12 and the lamp base tube 111 in turn, and finally dissipated to the environment.
  • the light emitting module 1 further includes a light-transmitting plate 13 , and the light-transmitting plate 13 is disposed in the lamp housing 11 and located on the light emitting side of the light source assembly 14 .
  • the light-transmitting plate 13 is used to homogenize the light of the light source assembly 14, so that the light emitted by the light source assembly 14 can be evenly incident on the screen of the mobile phone, so as to avoid problems such as discomfort caused by uneven brightness to human eyes.
  • the luminous central line of the light source assembly 14 is set to be inclined with respect to the normal line of the front of the mobile phone screen, so that white light is incident on the mobile phone screen with a certain incident angle, and then with a corresponding The reflection angle is incident to the human eye, preventing white light from directly entering the human eye.
  • various types of mobile phones in the market are placed on the front surface 313 of the base module 3, and the screen surface of the mobile phones is tested.
  • the blue light hazard radiation of the mobile phone screen after the supplementary light device 100 is less than or equal to 20 ⁇ W/cm 2
  • the blue light radiation ratio is less than or equal to 2 ⁇ W/lm
  • the blue light hazard level is 0.
  • the damage to human eyes is obviously reduced.
  • the harmful blue light irradiation of the screen of the mobile phone after the supplementary light device 100 is less than or equal to 10 ⁇ W/cm 2 , and the blue light radiation ratio is less than or equal to 1 ⁇ W/lm. Furthermore, in some embodiments, the harmful blue light irradiation of the screen of the mobile phone after the supplementary light device 100 is less than or equal to 8 ⁇ W/cm 2 , and the blue light radiation ratio is less than or equal to 0.5 ⁇ W/lm.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Led Device Packages (AREA)

Abstract

L'invention concerne un ensemble source de lumière (14) et un dispositif d'ajout de lumière (100). L'ensemble source de lumière (14) comprend une carte de circuit de source de lumière (141) et de multiples éléments électroluminescents (142) ; chaque élément électroluminescent (142) comprend une puce électroluminescente à DEL et une couche de poudre fluorescente ; la puce électroluminescente à DEL émet une lumière bleue, la lumière émise par la couche de poudre fluorescente excitée par la lumière bleue est mélangée avec la lumière bleue pour former une lumière blanche, la puissance spectrale relative de la lumière ayant une longueur d'onde de 400 nm à 440 nm parmi la lumière blanche est inférieure ou égale à 0,4 et un indice de rendu de couleur Ra de la lumière blanche est supérieur ou égal à 60. L'ensemble source de lumière (14) peut réduire les problèmes de santé sous-optimaux provoqués par une lumière bleue excessive.
PCT/CN2021/143591 2021-12-31 2021-12-31 Ensemble source de lumière et dispositif d'ajout de lumière WO2023123324A1 (fr)

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US20110051408A1 (en) * 2009-08-28 2011-03-03 Chih-Hung Wei LED Device With High Color-Rendering Index
WO2014201774A1 (fr) * 2013-06-19 2014-12-24 福建省万邦光电科技有限公司 Lampe à ampoule à del pouvant émettre des lumières dans toutes les directions
CN108828888A (zh) * 2018-06-27 2018-11-16 朗昭创新控股（深圳）有限公司 一种投影设备
CN108870201A (zh) * 2018-06-27 2018-11-23 朗昭创新控股（深圳）有限公司 背光模组
CN109027778A (zh) * 2018-06-27 2018-12-18 朗昭创新控股（深圳）有限公司 办公射灯
CN211289710U (zh) * 2019-11-29 2020-08-18 广州市野光源眼科技有限公司 一种用于显示屏的辅助光源
CN212273793U (zh) * 2020-07-07 2021-01-01 深圳易联智能电气有限公司 一种显示屏多功能补光灯具
CN212377885U (zh) * 2020-07-23 2021-01-19 广东小天才科技有限公司 一种屏幕补光灯及一种具有屏幕补光功能的电子设备
CN212510746U (zh) * 2020-07-29 2021-02-09 山东理工职业学院 一种用于计算机屏幕的磁吸式挂灯
WO2021135752A1 (fr) * 2019-12-31 2021-07-08 华为技术有限公司 Module de rétroéclairage, dispositif électronique et barre lumineuse

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110051408A1 (en) * 2009-08-28 2011-03-03 Chih-Hung Wei LED Device With High Color-Rendering Index
WO2014201774A1 (fr) * 2013-06-19 2014-12-24 福建省万邦光电科技有限公司 Lampe à ampoule à del pouvant émettre des lumières dans toutes les directions
CN108828888A (zh) * 2018-06-27 2018-11-16 朗昭创新控股（深圳）有限公司 一种投影设备
CN108870201A (zh) * 2018-06-27 2018-11-23 朗昭创新控股（深圳）有限公司 背光模组
CN109027778A (zh) * 2018-06-27 2018-12-18 朗昭创新控股（深圳）有限公司 办公射灯
CN211289710U (zh) * 2019-11-29 2020-08-18 广州市野光源眼科技有限公司 一种用于显示屏的辅助光源
WO2021135752A1 (fr) * 2019-12-31 2021-07-08 华为技术有限公司 Module de rétroéclairage, dispositif électronique et barre lumineuse
CN212273793U (zh) * 2020-07-07 2021-01-01 深圳易联智能电气有限公司 一种显示屏多功能补光灯具
CN212377885U (zh) * 2020-07-23 2021-01-19 广东小天才科技有限公司 一种屏幕补光灯及一种具有屏幕补光功能的电子设备
CN212510746U (zh) * 2020-07-29 2021-02-09 山东理工职业学院 一种用于计算机屏幕的磁吸式挂灯

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