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Lamp and control method thereof

A control method and lamp technology, applied in the field of lighting, to achieve the effect of reducing brightness and suppressing indirect glare

Inactive Publication Date: 2013-08-14
中山市中大灯饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, one light source is still used to change the light output distribution, which has certain limitations in the light irradiation range and irradiation direction.

Method used

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  • Lamp and control method thereof

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Embodiment Construction

[0039] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

[0040] An embodiment of the present invention provides a control method for a lamp, the lamp includes an optical element and a plurality of light sources located in multiple directions, the light emitted by each light source passes through the optical element and the output light includes: The first part of light and the second part of light emitted from both sides of the central normal, wherein the radiation angle of the first part of light from each light source is larger than the radiation angle of the corresponding second part of light.

[0041] Figure 1A A light source with a specific structure is shown. The center normal of the light source 1 is a dotted line N1, where the center normal refers to the normal at the center of the light emitting surface of the ligh...

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Abstract

The invention provides a lamp and a control method thereof. The lamp comprises an optical element and multiple lamp sources positioned in multiple directions, output light after light emitted by each lamp source passes the optical element comprises first portion light and second portion light respectively emitted towards two sides of the center normal of the lamp source, and the radiation angle of the first portion light of each lamp source is larger than that of the corresponding second portion light. The method includes: determining a relative position between a user and the lamp; and controlling to lower brightnesses of at least one lamp source with the first portion light deviating towards the user. By the lamp and the control method thereof, omnidirectional lighting and inhibition of indirect glaring can be realized simultaneously.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a lamp and a control method thereof. Background technique [0002] Because of its energy saving, environmental protection, small size and high efficiency, LED has become more and more popular in daily life. It can be seen in all aspects of clothing, food, housing and transportation. With the progress of semiconductor material technology and optical design, the brightness of LED This green and energy-saving product has been adopted on a large scale in displays and lighting fixtures. [0003] But because of the high brightness of LEDs, the problem that comes with it is severe glare. Glare can be divided into direct glare and indirect glare. The reason for direct glare is that the high brightness of the LED is concentrated on a small light-emitting area, making the light intensity per unit area too high. If there is no protective measure in the lamp, looking directly at the LED w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04H05B37/02F21Y101/02F21Y115/10
Inventor 蔡昌宇
Owner 中山市中大灯饰有限公司