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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 front of it is higher than that of the surrounding area.
This small luminous angle and uneven luminous characteristics will affect the application and promotion of this product in some fields.

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

Embodiment 1

[0021] Such as figure 1 , figure 2 , image 3 , a large-angle LED bulb lampshade, comprising a hemispherical lens body 1, a hemispherical light groove 4 matching with the LED lamp is arranged at the center of the sphere of the hemispherical lens body 1, and the surface of the hemispherical lens body 1 is located The front of the LED light is 5 degrees from the central axis of the hemispherical lens main body 1, and the inner surface of the hemispherical lamp groove 4 is coated with a phosphor semi-reflective layer 3. The phosphor semi-reflective layer 3 is the center to the surrounding light. When passing through the coating, the transmission gradually increases and the reflection gradually decreases. The bottom of the hemispherical lens main body 1 is symmetrically provided with four protrusions 2 protruding outward to match the base of the LED bulb lamp.

Embodiment 2

[0023] Such as image 3 , Figure 4 , Figure 5 , a large-angle LED bulb lampshade, comprising a hemispherical lens main body 1, a hemispherical light groove 4 matching with an LED light is arranged at the center of the hemispherical lens main body 1, and the hemispherical lens main body 1 is set as According to the center of the LED light emission curve processing to the surrounding light passing through the sandblasting semi-reflective layer 5, the transmission gradually increases and the reflection gradually decreases. The sandblasting semi-reflective layer 5 is sprayed on the outer surface of the hemispherical lens body 1, so that the LED The light emitted by the lamp through the bulb lampshade is uniform and has a large angle. The bottom of the hemispherical lens body 1 is symmetrically provided with four protrusions 2 protruding outward.

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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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