Wavelength conversion component and lighting device

CN122170379APending Publication Date: 2026-06-09YLX INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YLX INC
Filing Date
2024-12-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing laser lighting technologies suffer from a low color rendering index due to the lack of a red light band, making them unsuitable for applications requiring a high color rendering index.

Method used

A wavelength conversion assembly including first and second wavelength conversion units is used. First fluorescence is generated by first excitation light and forms second excitation light with unconverted photosynthetic light. The second excitation light excites the second wavelength conversion unit to generate red fluorescence. The two wavelength conversion units are mixed to form illumination light. The driving unit adjusts the position of the second wavelength conversion unit to change the area of ​​the excited region. The control unit controls the color temperature.

Benefits of technology

It improves the color rendering index of lighting light and allows for color temperature adjustment, enriching application scenarios and enhancing product competitiveness.

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Abstract

The application discloses a wavelength conversion assembly and a lighting device. The wavelength conversion assembly comprises a first wavelength conversion unit, a second wavelength conversion unit, a driving unit and a control unit. The first wavelength conversion unit is used for generating first fluorescent light under excitation of a part of first excitation light; another part of the first excitation light is combined with the first fluorescent light after exiting the first wavelength conversion unit to form second excitation light. The second wavelength conversion unit is movably arranged on an optical path of the second excitation light and is used for generating second fluorescent light under excitation of a part of the second excitation light, wherein the second fluorescent light comprises red fluorescent light; another part of the second excitation light is combined with the second fluorescent light after exiting the second wavelength conversion unit. The driving unit is used for adjusting the relative position between the second wavelength conversion unit and the second excitation light. Since the lighting device can mix red light components in the generated lighting light, the color rendering index of the lighting light is improved.
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