Inflatable spherical integrating source for spaceflight...

Details Inflatable spherical integrating source for spaceflight... Inflatable spherical integrating source for spaceflight...

2007-07-05

2008-10-21

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S239000

Reexamination Certificate

active

07439486

ABSTRACT:
A method for calibrating a sensor in a vehicle, such as a space capsule or other space borne apparatus, uses an expandable integrating sphere. A sensor in the vehicle measures the energy from an electromagnetic energy source within the integrating sphere through a calibration window. The expandable fluid impermeable integrating sphere expands when filled with a fluid, such that when filled with the fluid, its interior is viewable through the calibration window. The system includes a source of fluid to fill the integrating sphere and a fluid regulator coupled to the vehicle to determine when to supply the fluid to the integrating sphere to maintain an appropriate gas pressure level with the integrating sphere.

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Peter J Swyer et al: “Optical integrating balloon device for photodynamic therapy” vol. 26, 2000, pp. 58-66, XP002447420.
W.A. Hovis et al: “Characteristics of an internally illuminated calibration sphere” vol. 22, No. 24 1983, pp. 4004-4007, XP002447421.

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