Lighting fixture and method

Abstract

A lighting apparatus that includes a flexible circuit substrate that has a front face and an opposite back face, and a first end and an opposite second end; a first plurality of LED dice on the flexible substrate, wherein each die of the first plurality of LED dice emits blue light; a second plurality of LED dice that emits red light; a third plurality of LED dice that emits infrared, wherein the first, second and third plurality of LEDs each emit a full-width-half-maximum bandwidth of no more than 50 nm in each of their respective colors. Some embodiments provide variable spacing to the apparatus and variable scheduled lighting periods and accommodate various types of botanical plants.

What is claimed is: 
     
         1 . An apparatus for mass production of plants, the apparatus comprising:
 a plant-light system that includes a plurality of plant-lighting sheets, wherein each plant-lighting sheet includes one or more LED tiles, each LED tile including a plurality of LEDs arranged on a grid, wherein each plant lighting sheet has a length and a width, wherein the length of each plant lighting sheet is at least five times the width, and wherein the plurality of lighting sheets is arranged along a length of a room;   a plant-sheet rotation and withdrawal system arranged to rotate one or more of the plant lighting sheets between a first orientation substantially parallel relative to the length of the room and a second orientation substantially perpendicular relative to the length of the room; and   a plurality of plant-holding shelves arranged along the length of the room facing the plurality of plant lighting sheets.   
     
     
         2 . The apparatus of  claim 1 , wherein each sheet of the plurality of plant-lighting sheets includes a plurality of LED tiles. 
     
     
         3 . The apparatus of  claim 1 , wherein the plurality of LEDs includes one or more LEDs emitting light that appears red, one or more LEDs emitting light that appears blue and one or more LEDs emitting light that appears white.