Presentation on theme: "Development of LED Lids for Tissue Culture Lighting"— Presentation transcript:
1 Development of LED Lids for Tissue Culture Lighting Wei FANG*, National Taiwan Univ.Chi-Chung CHEN, Nano Bio light Technology Co.Yung-Yi LEE, National Museum of Natural ScienceMing-Yih CHANG, National Ilan UniversityNov , 2009Symposium on Light in Horticulture, Tsukuba, Japan
2 LEDLight up theEco-friendlyDream in Horticulture
3 Distance from lamp to plant is long. Uniformity on cultural bed is poor.Space utilization is low (maybe not a problem for research oriented lab.)
4 Usable life span of TFL lamp is short. Ability to keep consistent output is poor.Cost to remove extra heat is high.Relative quantum yield is low, due to too much green light given by TFL.
6 Purposes of the studyTo develop a TC vessel with LED light source attached.To develop a TC cart for photo-phyto related research using light source developed.To develop a TC system for mass production of TC plantlets using carts developed.
7 Absorption spectrums of chlorophyll and phytochrome Wavelength of LEDs selectedAbsorption spectrum660+5nmChl.a 430, 662 nmChl.b 453, 642 nmPhytoch.R 660 nmPhytoch.FR 730 nmAbsorption spectrums of chlorophyll and phytochrome450+3nm525+3nm730+5nm
8 Results and Discussion In 2008, development ofTC vessel with double lids6 types of outer lids with different spectrums (essential 6)3 stages light intensity controlIn 2009 Q1,26 spectrums with IR (essential 6+2)
23 Allowing 5 replicates x 64 treatments Great tool for Experiment85Allowing 5 replicates x 64 treatments8
24 Highly efficient for mass production Traditional lab.E-LightDensity138 vessels/m / (4.5 x 8)482 vessels/m2320 / (1.07 x 0.62)Productivity ratio13.5Power consumption2560W (80×32)1100WPower consumption ratio2.5
25 Results and Discussion (cont.) In 2009 Q1,2 (cont.)with 10 stages intensity control (0~60 micro-mol/m2/s)Fine tune on light intensities of different lids
26 3 stages intensity control Giant E-Light v1 (2008 HortiFair)3 stages intensity control
27 10 stages intensity control Giant E Light v2a (2009Q1)10 stages intensity control六種光蓋在十段光量控制下之比較Intensities of 10 stages of LED Lids showing 6 types of LED lids (Essential 6)
28 Previous research (unpublished) E-Light prototype system was used Potato seedlings were grown under different light quantity and qualityLidsPARAll R84All B86CW66WW75RBCWWW
29 6 micro mole/m2/s increment per stage Giant E Light v2b (2009Q3)6 micro mole/m2/s increment per stage123456789FFine tune on light intensities of different lids
30 Results and Discussion (cont.) In 2009 Q320 spectrums, ‘Excellent 20’Design of a TC system for mass production using Giant E Light