Patent ID: 8941931
Filing Date: 2015-01-27
Classification: F24S,G02B,H01L,Y02E

Abstract:
1. A concentration ratio controlling apparatus for concentration type solar cells, the apparatus comprising: a first condensing unit to primarily concentrate a quantity of light that is irradiated from a light source; a second condensing unit disposed between a lower portion of the first condensing unit and a solar cell to secondarily concentrate the quantity of light that has passed through the first condensing unit and thereby irradiate the secondarily concentrated light toward the solar cell; an adjustment unit disposed in an optical path between the light source and the first condensing unit to adjust a concentration area of the first condensing unit based on an external force, and thereby adjust the quantity of light that is concentrated by the first condensing unit; and a control unit to analyze an input signal and thereby supply a corresponding drive control signal to the adjustment unit, wherein the adjustment unit includes: a first driving unit to drive in response to an input of a first drive control signal that is supplied from the control unit; a first panel connected to one side of the first driving unit to open or close a portion of covering the first condensing unit in response to driving of the first driving unit; a second driving unit to drive in response to an input of a second driving control signal that is supplied from the control unit; and a second panel connected to one side of the second driving unit to open or close a remaining portion of covering the first condensing unit in response to driving of the second driving unit, and wherein each of the first panel and the second panel has a shape in which a rectangular thin plate is curved at 90 degrees based on a center of a lengthwise direction, and curved inner portions of the first panel and the second panel are disposed to face each other.