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Picture Chamber Area in Joshua in which darkslide and processed pictures are stored.
Picture Door Access door to remove prints from Camera.
Piezo Audible signal device (beeper) which sounds on Self-Timer count, End of
Pack, etc.
Platen Assembly Structure in Film Door to position film pack properly.
Power Actuator See Actuator, Power.
Power IC Integrated circuit chip in Camera electronics which controls power voltages
to Exposure and Microprocessor ICs, motor, strobe, solenoids, piezo, etc.
Power Switch Same as Erect Switch.
Process Rolls Driven rolls which crush pod in film frame and distribute reagent over
(Spread Rolls) emulsion.
Quench To turn off strobe flashtube after it has delivered required amount of
illumination to satisfy exposure requirements.
Reagent Chemical film developing agent contained in internal pod in integral
Polaroid film.
Reflectance, IR Infrared energy reflected by subject and measured at Camera (see IR
Reflectivity).
Recock Latch Drive System element which, when latched, holds Mirror Recock Link and
Taking Mirror down, prior to exposure. Reverse motor jog turns Latch
CCW, unlatches Recock Link which lifts mirror to picture-taking position.
Recock Link Drive System element actuated by Timing Gear cam; lifts Taking Mirror to
picture-taking position, drives it down after exposure.
S1A-S1B Circuit designation of Joshua Shutter Release button. Closing S1A charges
strobe, closing S1B initiates exposure.
Secondary Pick Chamber Pick; pulls frame into Storage Chamber.
Self-Timer Programmed delay set by camera user, causing exposure 10 seconds after
Slide control is set.
Six Sigma Design Statistical designation of product reliability, in which no more than 30
failures to meet performance specifications are allowed in one million
products manufactured. The Joshua Camera is such a design.
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