초록 ▼

A retractable power supply including a solar cell for converting incident radiation to electrical energy and a base member for (1) storing the solar cell when said cell is not operatively deployed and (2) supporting the solar cell when said cell is in an operative condition. A rechargeable battery p

A retractable power supply including a solar cell for converting incident radiation to electrical energy and a base member for (1) storing the solar cell when said cell is not operatively deployed and (2) supporting the solar cell when said cell is in an operative condition. A rechargeable battery pack may be included in the base member for storing electrical energy generated by the solar cell. In one particularly noteworthy embodiment, the solar cell may be employed as a retractable window shade.

대표청구항 ▼

A retractable power supply comprising: a thin, flexible, lightweight, large area solar cell for converting incident light energy into electrical energy; a base member for storing the solar cell, said solar cell rollably secured to said base member; a thin, rollable, elongated, tape-like, rigidifying

A retractable power supply comprising: a thin, flexible, lightweight, large area solar cell for converting incident light energy into electrical energy; a base member for storing the solar cell, said solar cell rollably secured to said base member; a thin, rollable, elongated, tape-like, rigidifying spring strip affixed to the solar cell and oriented generally perpendicular to the base member, said strip having a curved cross-sectional shape taken in a direction transverse to the longitudinal direction thereof when the solar cell is deployed from the base member, and of a generally planar cross-section in said transverse direction when the solar cell is rollably secured, said strip operative to rigidify the deployed solar cell; and, terminal means for withdrawing electrical energy from the power supply.