Combustion pinhole camera system

Patent · 21 February 1984

OSTI ID:864890

Witte, Arvel B ^[1]

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1. Rolling Hills, CA

A pinhole camera system utilizing a sealed optical-purge assembly which provides optical access into a coal combustor or other energy conversion reactors. The camera system basically consists of a focused-purge pinhole optical port assembly, a conventional TV vidicon receiver, an external, variable density light filter which is coupled electronically to the vidicon automatic gain control (agc). The key component of this system is the focused-purge pinhole optical port assembly which utilizes a purging inert gas to keep debris from entering the port and a lens arrangement which transfers the pinhole to the outside of the port assembly. One additional feature of the port assembly is that it is not flush with the interior of the combustor.

• Research Organization: TRW Inc
• DOE Contract Number: AC01-79ER10029
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4432286
• Application Number: 06/379,798
• OSTI ID: 864890
• Country of Publication: United States
• Language: English

Related Subjects

/110/348/431/
access
additional
agc
arrangement
assembly
automatic
basically
basically consists
camera
coal
coal combustor
combustion
combustor
component
consists
control
conventional
conversion
coupled
debris
density
electronically
energy
energy conversion
entering
external
feature
filter
flush
focused-purge
gas
inert
inert gas
interior
key
lens
lens arrangement
light
light filter
optical
optical access
optical-purge
outside
pinhole
pinhole camera
provides
provides optical
purging
reactors
receiver
sealed
sealed optical
transfers
tv
utilizes
utilizing
variable
variable density
vidicon