Light characteristic adjustable lighting device

Abstract

Provided is a light characteristic adjustable lighting device, which comprises a luminance adjustable light source and a transparent substrate. The luminance adjustable light source provides excitation lines. The transparent substrate at least has a first area to a fourth area, wherein the first area to the fourth area respectively cover a first fluorescent power combination to a fourth fluorescent powder combination; and the excitation lines emit a first light to a fourth light respectively through the first fluorescent power combination to the fourth fluorescent powder combination. The first light has a first color rendering index and a first color temperature; the second light has a second color rendering index and a second color temperature, wherein the second color rendering index is larger than the first color rendering index, and the second color temperature is larger than the first color temperature; the third light has the second color rendering index and the first color temperature; and the fourth light has the first color rendering index and the second color temperature. The excitation lines are switched between the first area, the second area, the third area and the fourth area so as to select one light ranging from the first light to the fourth light.

Description

technical field [0001] The invention relates to an illuminating device with adjustable light characteristics, in particular to an illuminating device capable of adjusting the brightness, color temperature and color rendering of illuminating light. Background technique [0002] When the human eye observes objects illuminated by natural or artificial light sources, it must have sufficient brightness to present colors. When the illumination light disappears, so does the color. Light and color are the same, it will cause warm and cold feelings to people, which is the concept of color temperature of light. The color temperature of the light source is different, and the light color is also different. A suitable ambient atmosphere can be formed by adjusting the color temperature of the light source. For example, a warm and soft atmosphere can be obtained by using a low color temperature light source; a cool and quiet atmosphere can be obtained by using a high color temperature li...

AI Technical Summary

Problems solved by technology

[0004] However, traditional lighting fixtures only consider the color temperature adjustment of the light source

Under the development trend of improving the lighting quality of the light source of the lighting equipment, it is necessary to further consider other optical factors of the light source of the lighting equipment, such as color rendering, luminous flux, etc., and this is the technical bottleneck that current lighting equipment is difficult to break through

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