Power transmission device

Patent · Tue Dec 11 04:00:00 EST 1990

OSTI ID:5189509

Holloman, M E; Jordon, D J; Otto, W F

This paper discusses a power transmission device for transmitting electrical power optically. It comprises a laser for generating a laser light beam; an optical glass monofilament having a glass core with a predetermined refractive index and a cladding outer layer having a different refractive index for conveying light beams; means for directing the laser beam into a receiving end of the monofilament at a predetermined angle to longitudinal axis of the monofilament. The laser beam is transmitted to an exit of the monofilament, exists therefrom in a uniform conical annulus at the same angle to the longitudinal axis of the monofilament as the laser beam was directed into the receiving end; a conical reflector disposed with its apex inside of the conical annulus and with its base disposed outside of the conical annulus to intercept and reflect light beams in the conical annulus along a path outwardly of the reflector at an angle to the longitudinal axis of the conical reflector; and photovoltaic cells disposed in a ring about the conical reflector, having inner surfaces extending in a path to intercept the reflected light beams uniformly to generate electric current therefrom.

• Assignee: Secretary of the Army, Washington, DC (USA)
• Patent Number(s): US 4976789; A
• Application Number: PPN: US 7-456899
• OSTI ID: 5189509
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501 -- Solar Energy Conversion-- Photovoltaic Conversion
24 POWER TRANSMISSION AND DISTRIBUTION
240200* -- Power System Networks
Transmission & Distribution-- (1990-)
BEAM OPTICS
DIRECT ENERGY CONVERTERS
ENERGY SYSTEMS
EQUIPMENT
GLASS
LASER POWER TRANSMISSION
LASERS
OPTICAL SYSTEMS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
POWER SYSTEMS
POWER TRANSMISSION
SOLAR CELLS
SOLAR EQUIPMENT