A direct type led flat lamp

A LED flat lamp, direct-type technology, applied in the field of direct-type LED flat lamps, can solve the problems of increased production cost and production efficiency, increased overall lamp weight, and poor heat dissipation effect, so as to reduce production cost, increase heat dissipation area, and increase material saving effect

Inactive Publication Date: 2011-12-14
ZHEJIANG TIANJING OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The luminous efficiency is low. Due to the use of side-entry light transmission, the light emitted by the LED is lost after multiple reflections and refractions.
[0004] 2. 400-600 LEDs must be used, with high power, and the LEDs are concentrated on the inner side of the lamp frame, and the heat

Method used

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  • A direct type led flat lamp
  • A direct type led flat lamp
  • A direct type led flat lamp

Examples

Experimental program
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Effect test

Example Embodiment

[0026] Such as figure 2 , image 3 As shown, a direct-lit LED flat lamp of this embodiment includes a hollow frame 4, a groove 40 is provided on the inner side of the frame 4, and a diffusion layer 5 and a reflective layer 2 are sequentially arranged in the frame 4 from the front to the back. With the substrate 1, a number of LEDs 3 are provided on the upper surface of the substrate 1 that is the side facing the front of the rectangular frame 4. Each LED 3 is covered with an LED lens 6, and the reflective layer 2 is provided with a number of small holes 20, small holes 20 is arranged corresponding to the LED3, and the LED3 coated with the LED lens 6 protrudes from the small hole 20 out of the reflective layer 2.

[0027] In this embodiment:

[0028] The frame 4 adopts a rectangular plastic frame. As an alternative, the frame material can be made of plastic or aluminum with flame retardant function or other flame-retardant lightweight materials. The frame shape can be square, rect...

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Abstract

The invention discloses a direct-down LED flat lamp, which belongs to the technical field of LED lamps, and comprises a frame in which a diffusion layer, a reflection layer and a substrate are sequentially arranged from the front to the back, and LEDs are also arranged on the substrate. The above-mentioned LED is covered with a lens. The present invention uses a lens + LED light bar as a light source, and the light is reflected multiple times in the lens to achieve the purpose of diffusing and improving light uniformity. The LED light bar is a structure set on the bottom surface of the light source and does not use the light guide plate, so that the weight of the whole light is greatly reduced, the structure is simpler, the power of the whole light is smaller, the heat dissipation surface is larger, the heat dissipation effect is better, and the service life is improved.

Description

Technical field: [0001] The invention relates to a direct type LED flat lamp, which belongs to the technical field of LED lamps. Background technique: [0002] The existing LED flat light structure mostly adopts side-entry structure, such as attached figure 1 As shown, it includes a rectangular aluminum frame 6', which is characterized in that the frame 6'is provided with a diffuser 4', a light guide plate 3', a reflector 2', and a back plate 1'in order from the front to the back. There are also 4 or 2 light bars 5'with 400-600 LEDs on the 3'side of the 6'inner light guide plate. The LED flat light with this structure mainly has the following disadvantages: [0003] 1. The luminous efficiency is low. Due to the use of side-entry light transmission, the light emitted by the LED will cause loss after multiple reflections and refractions. [0004] 2. 400-600 LEDs must be used, with high power, and the LEDs are concentrated on the inside of the lamp frame, so the heat dissipation effec...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V19/00F21V13/04F21V17/00F21Y101/02
Inventor 章建张永夫
Owner ZHEJIANG TIANJING OPTOELECTRONICS TECH
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