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Slim linear LED lighting device

A technology for light-emitting devices and LED chips, which is applied in the directions of slender light sources, lighting devices, and components of lighting devices, etc., can solve the problems of insufficient central brightness, no dynamic lighting, and uneven brightness and darkness.

Active Publication Date: 2020-12-11
EXCELLENCE OPTO INC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0010] The present invention discloses a slim linear LED lighting device. Aiming at the shortcomings of the above-mentioned prior art, a structure and manufacturing technology of a slim linear LED lighting device is proposed, so that the lighting device can be applied to a linear LED light emitting device with a thin light guide sheet. Lamps, especially car lights, can effectively solve many problems that existing LED light sources are used in high-quality car lights, including visually granular LEDs, uneven brightness, granular bright spots, and low light source utilization. , Insufficient brightness in the center and no dynamic lighting function

Method used

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[0097] refer to Figure 1A , Figure 1B and Figure 1C as shown, Figure 1A It is the first embodiment of the slim line LED lighting device 1 of the present invention, including a circuit board (PCB) 20, a connector 41, a plurality of LED strips 30, and connecting circuits (not shown in the figure), which are completed by SMT process. Wherein each LED bar 30 contains four LED chips 33 and a semi-convex arc-shaped strip-shaped sealing lens 371 . Figure 1B Shown is the first embodiment of the LED bar (LED Bar) 30, which includes a substrate 31, four LED chips 33 of the same type, and a sealed lens 371. The lens, wherein the cross-section of the bar-shaped condenser lens 371 is formed by the first optical surface 3711 of a semi-convex arc. Wherein the LED chip 33 is about 0.4mm in length and about 0.2mm in width. The LED chip 33 is a kind of horizontal chip, so the positive pole (P) and negative pole (N) of the LED chip are all on the upper surface of the chip (not shown in th...

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Abstract

A slim line type LED light-emitting device comprises a circuit board. At least one power input assembly, a connecting circuit and one or more LED strips are arranged on the circuit board. The plurality of LED strips can be closely arranged or specifically arranged at intervals according to design requirements. The LED strip is formed by regularly and tightly arranging a plurality of LED chips of the same kind on the upper layer of a substrate through the processes of die bonding, wire bonding, forming packaging and cutting. The slim line type LED light-emitting device is characterized in thatfirstly, the LED strip is provided with a strip-shaped condensing lens, the condensing lens is integrally formed when the LED strip is formed and packaged, and therefore the slim line type LED light-emitting device is continuously and evenly distributed in the longitudinal light-emitting vision and transversely condensed into a small light-emitting angle, and the forward light-emitting brightnessof the slim line type LED light-emitting device is enhanced; and secondly, the size of the cross section of the LED strip condensing lens is very small, so that the slim linear LED light-emitting device is applied to a linear lamp designed by a light guide sheet, and the effective utilization rate of emitted light is increased.

Description

technical field [0001] The invention relates to a slender linear LED light-emitting device, which can present visually continuous and uniform luminescence, especially a linear lamp (such as a car lamp) designed with a light guide sheet, which is slender in size and has high luminance. High efficiency linear LED light emitting device. Background technique [0002] In the prior art, LED has many characteristics of high brightness, energy saving, multi-color and rapid change, and has been widely used in various lighting fields that require light sources. Among them, in the field of automobile lights, LED has become the most important light source. For the development of LED applications in automobile lights, the earliest LED lights are characterized by multi-point light sources to distinguish them from incandescent bulbs. Nowadays, car lights have evolved into area light sources or line light source lamps that visually require uniform light. Because LED is similar to a point ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/075H01L33/48H01L33/58F21S4/20F21V19/00F21Y115/10
CPCH01L25/0753H01L33/48H01L33/58F21S4/20F21V19/001F21Y2115/10F21S4/24F21Y2103/10H01L33/60F21K9/27F21K9/60F21V23/04F21V23/002F21S4/22F21V23/004
Inventor 陈炎成杨昇桦蔡轩荣饶承泰张志强
Owner EXCELLENCE OPTO INC
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