The research of lamp for the growing of green plants

Chunyuan Feng; Hongnian Feng; Shangzhong Jin; Jun Gao

doi:10.1117/12.577252

12 January 2005 The research of lamp for the growing of green plants

Chunyuan Feng, Hongnian Feng, Shangzhong Jin, Jun Gao

Proceedings Volume 5632, Light-Emitting Diode Materials and Devices; (2005) https://doi.org/10.1117/12.577252
Event: Photonics Asia, 2004, Beijing, China

Abstract

Photosynthesis of plants is to absorb the special wavelength of sunlight by the chlorophylls. According to the absorption spectrum of chlorophylls, we managed to make a LED lamp for the growing of green plants, and the relative energy spectrum distribution of the lamp match with the absorbing spectrum of green plants. Because the absorption wavelength range of chlorophylls are respectively 390~420nm, 430~460nm and 650~680nm, we choose different peak wavelength LEDs which are respectively at 400nm, 450nm, 655nm. By calculation, the general energy ratio of the three types of LEDs is 22:46:33, which corresponds to the absorption spectrum of chlorophylls. The illuminance of lamp for the growing of green plants on plants away 0.5 meter is 80lx by measuring. The LEDs lamp can be used to complement light and increase the efficiency of photosynthesis in cloudy, in door or at night. In another word, the photosynthesis is more powerful, and the more carbohydrates are synthesized, supplying enough material and energy for the growing of green plants.

Citation Download Citation

Chunyuan Feng, Hongnian Feng, Shangzhong Jin, and Jun Gao "The research of lamp for the growing of green plants", Proc. SPIE 5632, Light-Emitting Diode Materials and Devices, (12 January 2005); https://doi.org/10.1117/12.577252

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