Polaroid Joshua Vision Service Manual page 129

Hybrid Exposure
Inertia System
Infrared
Inhibits
Integrator
(Ambient, Hybrid)
Interconnect Flex
IR
IR Reflectivity
Jam
Jog, Reverse Motor
Joshua
LED
Logic Switch
Look-Up Table
Mainframe
MCU
Microprocessor (Micro)
Combination of follow focus and quenching systems.
Rack and pinion system with zinc inertia gear, coupled to blade-opening
Walking Beam; used to reduce blade opening speed.
Invisible portion of electromagnetic spectrum. Used in Joshua exposure
calculations since many fabric dye colors have similar IR reflectivity values.
Prevention of Camera operation when bad/no picture would result (storage
chamber full, end of pack, strobe not charged).
Electronic circuit for summing and storing measured light values.
(See Flex, Interconnect).
Abbreviation for infrared.
Property of a material to reflect/emit infrared radiation. Used in Joshua
exposure calculations since many fabric dyes of differing colors possess
similar IR reflectivity values.
Film frame misfeed and incomplete transport into storage chamber.
Brief, initial CCW rotation of Motor to release Recock Latch, allowing VF
Blind to block VF window and Recock Link to lift Taking Mirror.
Code name for Joshua Camera during development.
Abbreviation for Light Emitting Diode.
Multi-element wireform switch in Joshua, controlling Exposure Trim,
Self-Timer, End of Pack, DKEC, S1A-S1B, Film Speed and Full Chamber
functions.
In the Joshua microprocessor, a stored collection of ambient and Wink
reflectance values arranged as rows and columns, the intersections of which
provide optimum exposure data for thousands of different photographic
situations.
Primary molded frame on which all other camera subassemblies, frames and
structures are mounted.
Circuit designation of microprocessor IC in Joshua Camera.
Integrated circuit chip containing CPU elements of control logic, decoding,
arithmetic processing and memory.
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