PROBLEM TO BE SOLVED: To boost production by raising quality by eliminating slanted mushroom, lowering cost with LED (light emitting diode) illumination, raising working efficiency and using LED striation. SOLUTION: Slanted mushroom is eliminated by equally arranging LED striation. LED is attached with a minimum resistance value by reducing spacing between LEDs by the use of the LED striation. The LED striation is attached to a sprouting shelf, and early light suppression is carried out in the sprouting shelf. COPYRIGHT: (C)2012,JPO&INPIT
