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High CRI led lamps and its design method

A technology of LED lamps and design methods, which is applied in the direction of lampshades, lighting and heating equipment, semiconductor devices of light-emitting elements, etc., can solve the problems of low display index of LED lamps, and achieve the effects of simple structure, improved color rendering index, and convenient production

Active Publication Date: 2018-02-06
CECEP LATTICELIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low display index of existing LED lamps, the present invention proposes a new type of high display index LED lamp and its design method

Method used

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  • High CRI led lamps and its design method
  • High CRI led lamps and its design method
  • High CRI led lamps and its design method

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Embodiment Construction

[0042] A design method for LED lamps with high display index, comprising the following steps:

[0043] (1) Determine the relationship between the luminous flux of the red LED and the temperature, determine the relationship between the chromaticity of the red LED and the temperature and current, and determine the relationship between the half-wave width of the red light and the temperature and current.

[0044] (2) Determine the relationship between the luminous flux of the green LED and the temperature, determine the relationship between the chromaticity of the green LED and the temperature and current, and determine the relationship between the half-wave width of the green light and the temperature and current;

[0045]Whether it is a blue LED chip, a red LED chip or a green LED chip, as the temperature and current change, the light emitted by the chip will change. As the temperature increases, the concentration of electrons and holes increases, the forbidden band width will ...

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Abstract

The invention discloses a high CRI LED lamp and a design method thereof. According to the design method, under the premise that conventional LEDs are used, the CRI of the LED lamp can be greatly improved through the luminous flux matching ratio of the LEDs of different colors. The CRI of the LED lamp which is manufactured by the method can reach 95, the structure is simple, manufacturing is convenient, and the cost is low. According to the design method, the CRI of one single white light LED does not need to be improved, the high CRI LED lamp can be manufactured only by common LEDs in the market, and the limitation for manufacturing high CRI LED lamp chips and for packaging processes is reduced. The design method can be implemented at a lamp application terminal, so that the downstream of the LEDs, namely the LED lamp application terminal has more autonomy for developing the high CRI lamps, the method does not depend on upstream chips and packaging, and the high CRI lamp development cost is greatly reduced at the same time.

Description

technical field [0001] The invention belongs to the technical field of semiconductor lighting, and specifically refers to a high display index LED lamp and a design method thereof. Background technique [0002] The ability of a light source to restore the color of an object is called color rendering, which is characterized by the color rendering index (CRI), which is an important indicator for evaluating lighting sources. The level of the color rendering index indicates the degree of "discoloration" and "distortion" of the object under the light source. A light source with a high color rendering index (CRI) has a stronger ability to restore the color of the object, and is closer to the color performance of the object under natural light. In colorimetry, a blackbody (sunlight) or a standard illuminant D is used as a reference light source, and its color rendering index is defined as 100. Such a light source has a relatively complete, uniform and continuous spectrum. When th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V19/00F21V3/00F21Y115/10
CPCF21K9/90F21V3/00F21V19/001F21Y2101/00
Inventor 万欢曾平张志海洪芸芸
Owner CECEP LATTICELIGHTING