Wide-angle LED (light-emitting diode) bulb lamp shade

A technology of LED lamps and large angles, which is applied in the direction of lampshades, lighting devices, light sources, etc., and can solve the problems that affect the application and promotion, uneven light emission, and the angle of light emission of LED lights is difficult to exceed 180°.

Inactive Publication Date: 2012-10-17
SHENZHEN BAIKANG OPTICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the unidirectionality of LED light emission, it is difficult for the light emitting angle of LED lights to exceed 180°, and at the same time, the luminous intensity directly in

Method used

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  • Wide-angle LED (light-emitting diode) bulb lamp shade
  • Wide-angle LED (light-emitting diode) bulb lamp shade
  • Wide-angle LED (light-emitting diode) bulb lamp shade

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] Such as figure 1 , figure 2 , image 3 , A large-angle LED bulb lampshade, comprising a hemispherical lens body 1, the spherical center of the hemispherical lens body 1 is provided with a hemispherical lamp slot 4 matched with the LED lamp, the hemispherical lens body 1 is located The front of the LED lamp is 5 degrees from the central axis of the hemispherical lens body 1, and the inner surface of the hemispherical lamp trough 4 is coated with a phosphor semi-reflective layer 3. The phosphor semi-reflective layer 3 is centered and surrounded by light When passing through, the transmission gradually increases and the reflection gradually decreases. The bottom of the hemispherical lens body 1 is symmetrically provided with four convex projections 2 protruding outward and matching the LED bulb base.

Example Embodiment

[0022] Example 2

[0023] Such as image 3 , Figure 4 , Figure 5 , A large-angle LED bulb lampshade, comprising a hemispherical lens body 1, the spherical center of the hemispherical lens body 1 is provided with a hemispherical lamp slot 4 matched with the LED lamp, the hemispherical lens body 1 is set to According to the light emission curve of the LED lamp, the semi-reflective layer 5 is sprayed on the outer surface of the hemispherical lens body 1 by spraying the sandblasted semi-reflective layer 5 from the center to the surrounding light when the light passes through. The light emitted by the lamp through the bulb lampshade is uniform and has a large angle. Four convex protrusions 2 protruding outward are symmetrically provided at the bottom of the hemispherical lens body 1.

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PUM

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Abstract

The invention relates to an LED (light-emitting diode) lamp, particularly a wide-angle LED bulb lamp shade which comprises a hemispherical lens body, wherein the center of sphere of the hemispherical lens body is provided with a hemispherical lamp trough matched with an LED lamp; the surface of the hemispherical lens body is completely or partially provided with a partial-transmission/partial-reflection half-reflection cambered surface; and from the center to the periphery, the light transmission of the half-reflection cambered surface gradually increases, and the light reflection gradually decreases. By using the invention, the LED bulb lamp has the advantages of wider light emitting angle and uniform light emission.

Description

technical field [0001] The invention relates to an LED lamp, in particular to a large-angle LED bulb lamp shade which increases the light emitting angle of the LED bulb lamp and makes the light uniform. Background technique [0002] LED bulb lamps are new energy-saving lamps that replace traditional incandescent bulbs. Traditional incandescent lamps (tungsten filament lamps) have high energy consumption and short lifespan. Under the environment of tight global resources, the production of them has been gradually banned by governments of various countries. The replacement products are electronic energy-saving lamps. Although electronic energy-saving lamps have improved the energy-saving effect , but due to the use of many heavy metal elements that pollute the environment, it is contrary to the general trend of environmental protection. With the rapid development of LED technology, LED lighting has gradually become the best choice for new green lighting. LED is far superior ...

Claims

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Application Information

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IPC IPC(8): F21V3/02F21V5/04F21Y101/02
Inventor 周良周华
Owner SHENZHEN BAIKANG OPTICAL
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