Back to results
US 2002/0171441 A1Published application
Method and apparatus for accelerated life testing of a solar cell
AssigneeFirst Solar, Inc.
InventorUpali Nissanka Jayamaha
Life of this patent
Estimating the term…
Abstract
A method of accelerated life testing of a solar cell includes directing a high-intensity diode laser light through at least one lens onto a small area of the solar cell continuously for a predetermined period of time to simulate long-term sun exposure. Performance of the solar cell is measured before and after exposure to the laser light so that life expectancy unless long-term sun exposure may be determined.
Claims17
A method of accelerated life testing of a solar cell comprising:
- directing a high-intensity diode laser light through at least one lens onto a small area of the solar cell for a predetermined period of time to simulate long-term sun exposure;
- and
- measuring performance of the solar cell after said predetermined period of time expires.
An apparatus for accelerated testing of a solar cell comprising:
- a testing fixture for holding a solar cell;
- a diode laser positioned to direct laser light toward the solar cell;
- an aspherical lens positioned to receive said laser light and to form a rectangular parallel beam of the laser light;
- and
- a cylindrical lens positioned to receive said rectangular parallel beam and focus the beam onto a small area of the solar cell.
2 more elements
A method of accelerated life testing of a solar cell comprising:
- directing a high-intensity diode laser light through an aspherical lens to form a rectangular parallel beam, and then directing the rectangular parallel beam through a cylindrical lens to evenly focus the beam onto a small area of the solar cell for a predetermined period of time;
- and
- measuring performance of the solar cell after said predetermined period of time expires.
Dependencies are inferred from the claim text.