Abstract: A compensation method for a display area with an under-display camera includes acquiring the attenuation compensation amount of each sub-pixel between each of sub-pixels of the display area with the under-display camera and each of sub-pixels of a non-display area without the under-display camera in a display screen at the current moment, where the sub-pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; acquiring the attenuation accumulation amount of each sub-pixel of each pixel in the display area with the under-display camera; determining the pixel compensation amount of each sub-pixel of each pixel in the display area with the under-display camera according to the attenuation compensation amount and the attenuation accumulation amount; and compensating each sub-pixel of each pixel in the display area with the under-display camera according to the pixel compensation amount.

Abstract: Disclosed are a disinfection and illumination lamp and system. The disinfection and illumination lamp includes: a light source unit (11), including a visible light source (111) and a disinfection light source (112); a sensing unit (12), configured to sense the presence of living beings within a preset range; and a control unit, connected with the light source unit (11) and the sensing unit (12). After the control unit receives a signal transmitted by the sensing unit (12) sensing the presence of the living being, the visible light source (111) is controlled to emit illumination light, and the disinfection light source (112) is turned off; and after the control unit receives a signal transmitted by the sensing unit (12) not sensing the presence of the living being, the visible light source (111) is controlled to emit warning light, and the disinfection light source (112) is controlled to emit disinfection light.

Abstract: The present invention discloses a right-angle turning method for small-diameter TBM exploration adit excavation and belongs to the field of geological exploration of water conservancy and hydropower projects.

Abstract: A light-emitting device includes a substrate and an epitaxial structure. The epitaxial structure includes a first semiconductor layer, an active layer, and a second semiconductor layer which are disposed on the upper surface of the substrate in such order. The substrate has a substrate edge region surrounding and exposed from the epitaxial structure. The substrate edge region includes a first substrate edge region and a second substrate edge region which is more proximate to the epitaxial structure than the first substrate edge region. The first substrate edge region has a first uneven toothed surface or an even flat surface. The second substrate edge regions are formed with second uneven toothed surfaces which have a height greater than a height of the first even toothed surface, or the even flat surface.

Abstract: A first aspect of the present invention provides a method for the preparation of 2-chloro-5-chloromethylpyridine, comprising: performing a cyclization reaction on 4,5-dichloro-4-methoxypentanenitrile in presence of a silicon compound and an acylamide compound to obtain 2-chloro-5-chloromethylpyridine. Another aspect of the present invention provides a method for preparation of 2-(chloromethyl)-5-(trifluoromethyl)-1,3,4-oxadiazole, comprising: performing a cyclization reaction on 1-(chloroacetyl)-2-(trifluoroacetyl)hydrazine in a presence of a silicon compound and an acylamide compound to obtain 2-(chloromethyl)-5-(trifluoromethyl)-1,3,4-oxadiazole. The silicon compound or/and acylamide compound provided by the present invention serve as cyclization reagents and have high efficiency.

Abstract: An LED package structure, and a disinfection device and a disinfection lamp applying same. The LED package structure comprises: an LED wafer unit comprising a plurality of ultraviolet-band LED wafers and a visible light-band LED wafer. Each of the LED wafers is externally connected to a control unit for controlling whether each ultraviolet-band LED wafer emits light or not and a light emission intensity to emit light of different disinfecting bands and disinfecting effects as required, and controlling the visible light-band LED wafer to emit illumination and/or warning light, thereby achieving a technical effect of multiple purposes in one lamp. Meanwhile, the present disclosure can meet various disinfection requirements by using one product structure, and therefore, compared with conventional single-function disinfection lamps, the present disclosure has a more compact structure to occupy a smaller space, and has an indication function to improve safety of ultraviolet disinfection.

Abstract: An LED UV sterilization device, including a lens assembly and a light source assembly; the lens assembly includes a plurality of lenses of different materials suitable for light of different wavelengths; the light source assembly includes a visible light source assembly and an ultraviolet light source assembly. Visible light irradiated by the visible light source assembly and invisible ultraviolet light irradiated by the ultraviolet light source assembly pass through lenses of corresponding materials and form an overlapped light spot, so that an irradiation location of the invisible ultraviolet light is indicated by the visible light. The LED UV sterilization device not only realizes safe disinfection and sterilization, but also visualizes the sterilization process. The sterilization process is safer and more reliable, and the sterilization area is more accurate.

Abstract: A light-emitting device, including a shell assembly and a heat dissipation assembly. The heat dissipation assembly includes a first heat dissipation portion and a second heat dissipation portion. The first heat dissipation portion is connected with the second heat dissipation portion. The first heat dissipation portion is used to load a light source assembly, and a cavity space is formed when the second heat dissipation portion is covered by and communicated with the shell assembly. The second heat dissipation portion is provided with a first through-hole portion, and the shell assembly is provided with a second through-hole portion, the first through-hole portion and the second through-hole portion circulate a cooling medium to remove heat from the cavity space. Whether the light-emitting device is installed vertically, horizontally or at a certain inclination, a good heat dissipation effect can be achieved and the applicable scope can be greatly expanded.

Abstract: An LED UV sterilization device, including a lens assembly and a light source assembly; the lens assembly includes a plurality of lenses of different materials suitable for light of different wavelengths; the light source assembly includes a visible light source assembly and an ultraviolet light source assembly. Visible light irradiated by the visible light source assembly and invisible ultraviolet light irradiated by the ultraviolet light source assembly pass through lenses of corresponding materials and form an overlapped light spot, so that an irradiation location of the invisible ultraviolet light is indicated by the visible light. The LED UV sterilization device not only realizes safe disinfection and sterilization, but also visualizes the sterilization process. The sterilization process is safer and more reliable, and the sterilization area is more accurate.

Abstract: A light-emitting device, including a shell assembly and a heat dissipation assembly. The heat dissipation assembly includes a first heat dissipation portion and a second heat dissipation portion. The first heat dissipation portion is connected with the second heat dissipation portion. The first heat dissipation portion is used to load a light source assembly, and a cavity space is formed when the second heat dissipation portion is covered by and communicated with the shell assembly. The second heat dissipation portion is provided with a first through-hole portion, and the shell assembly is provided with a second through-hole portion, the first through-hole portion and the second through-hole portion circulate a cooling medium to remove heat from the cavity space. Whether the light-emitting device is installed vertically, horizontally or at a certain inclination, a good heat dissipation effect can be achieved and the applicable scope can be greatly expanded.

Abstract: A multifunctional light source assembly and a multifunctional desk lamp are disclosed. The multifunctional desk lamp includes a base assembly, a lamp head assembly, and a lamp arm assembly; one end of the lamp arm assembly is connected with the base assembly, and the other end is connected with and supports the lamp head assembly; the lamp head assembly is internally provided with the multifunctional light source assembly, the multifunctional light source assembly includes an illumination LED chip, a plant grow light LED chip and an ultraviolet LED chip. The illumination chip, the plant grow light chip and the ultraviolet chip are respectively connected to a controller, which respectively controls the three chips, through the on and off of currents, so that functions such as illumination for reading and writing, sterilization, plant growth assistance can be achieved.

Abstract: A multifunctional light source assembly and a multifunctional desk lamp are disclosed. The multifunctional desk lamp includes a base assembly, a lamp head assembly, and a lamp arm assembly; one end of the lamp arm assembly is connected with the base assembly, and the other end is connected with and supports the lamp head assembly; the lamp head assembly is internally provided with the multifunctional light source assembly, the multifunctional light source assembly includes an illumination LED chip, a plant grow light LED chip and an ultraviolet LED chip. The illumination chip, the plant grow light chip and the ultraviolet chip are respectively connected to a controller, which respectively controls the three chips, through the on and off of currents, so that functions such as illumination for reading and writing, sterilization, plant growth assistance can be achieved.

Abstract: The present disclosure provides a light source module and a lighting device using the same. The light source module includes: a support member, to be disposed on a lighting device and provided with a first positioning portion; a light source mounting member, having a second positioning portion to be jointed with the first positioning portion through shape matching, where the light source mounting member has a bearing surface for disposing a light source electronic component; and a lens member, covering the bearing surface and connected to the support member in a positioned manner.

Abstract: The present disclosure proposes an LED lamp with omnidirectional heat dissipation, which includes an LED lamp housing including a power supply component inside, and a heat sink supporting an LED chip. The LED lamp housing and the heat sink are separated by a heat insulation member to block thermal influence between each other. The LED lamp of the present disclosure adds a heat insulation plate between the LED lamp housing for placing the power supply component and the heat sink, to block and weaken the mutual influence between the heat generated by the LED chip and the heat generated by the power supply component. The design improves the problem of excessively high ambient temperature inside the power supply cavity of the traditional LED lamps, effectively avoids damage to the power supply device due to long-term working in a high-temperature environment, and improves the service life of the LED lamp.

Abstract: The present disclosure provides a lamp holder assembly and lamp device thereof, including a lamp body, which includes a housing, a heat radiator, a plurality of light-emitting devices, and a lens. The heat radiator is placed in a receiving cavity of the housing. The heat radiator includes a platform for attaching each of the light-emitting devices. The lens covers an opening at one end of the housing to fix the heat radiator. At least one top surface of a platform facing the light exiting direction has a certain slope relative to the horizontal direction perpendicular to the light exiting direction. The lens includes a light exiting surface opposite to the top surface of each platform. The lamp holder assembly has a small structure, high space utilization, large irradiation area, and uniform illumination. The light is emitted in a direct manner, which minimizes light loss and improves light emitting efficiency.

Abstract: The present disclosure proposes an LED lamp with omnidirectional heat dissipation, which includes an LED lamp housing including a power supply component inside, and a heat sink supporting an LED chip. The LED lamp housing and the heat sink are separated by a heat insulation member to block thermal influence between each other. The LED lamp of the present disclosure adds a heat insulation plate between the LED lamp housing for placing the power supply component and the heat sink, to block and weaken the mutual influence between the heat generated by the LED chip and the heat generated by the power supply component. The design improves the problem of excessively high ambient temperature inside the power supply cavity of the traditional LED lamps, effectively avoids damage to the power supply device due to long-term working in a high-temperature environment, and improves the service life of the LED lamp.

Abstract: The present disclosure provides a light source module and a lighting device using the same. The light source module includes: a support member, to be disposed on a lighting device and provided with a first positioning portion; a light source mounting member, having a second positioning portion to be jointed with the first positioning portion through shape matching, where the light source mounting member has a bearing surface for disposing a light source electronic component; and a lens member, covering the bearing surface and connected to the support member in a positioned manner.

Abstract: Disclosed are an LED light source apparatus, a lighting device, and a lighting control method. The LED light source apparatus includes a plurality of light mixing units. Each light mixing unit comprises LED chips of at least four colors, and the at least four colors at least include red and green. The plurality of light mixing units is uniformly distributed on a bearing surface along a ring.