A - 6
Mirror-Down Signal
One of three signals generated by DKEC cam on Timing Gear; occurs
halfway through cycle, when cam momentarily opens DKEC switch. Used to
re-open Viewfinder after exposure.
Mirror, Fixed
Mirror at 45-degrees to image path which directs image to Fresnel screen,
concave mirror and Viewfinder optics.
Mirror, Taking
Mirror driven upward to 45-degree angle, into image path, todirect image
onto film.
Mirror, Viewing
Same as Fixed Mirror.
Open
Term used with Joshua to describe condition of doors, not the position of the
Camera.
Override Slider
Part of the Storage Chamber Pick Assembly in the Film Door; actuates
Chamber Pick to pull picture from nip of Spread Rolls into Storage
Chamber; also coupled to Film Shade through Actuator Link.
Overtravel Spring
Part of VF Blind/VF Blind Link mechanism; allows VF Blind to close
before Mirror is released; also compensates for Recock Latch rotation after
VF Blind cannot move further.
Pack, Film
Ten Joshua instant color print film frames with darkslide and mercury-free
battery in a film box.
Pack Frame
Guide frame for film pack in Film Door.
Photodiode System
Dual photodiodes behind green and black lenses, to measure visible
(ambient) and IR (strobe) light values.
Photographic Field
Area captured on film (in Joshua, same as viewing field).
Photometer
See Photodiode System.
Picking
Transporting film frame by motion of a notched, reciprocating arm (Joshua
has two picks: one moves frame into feed rolls, the other into Storage
Chamber).
Pick Carrier
Reciprocating arm in Drive System driven forward by cam on Timing Gear,
returned by spring load. Includes Pick Strap to pull film into Feed Rolls and
arm to index Counter Wheel.
Pick Carrier Advance Cam Cam on underside of Timing Gear that advances and holds forward the Pick
Carrier.
Pick Strap
Part of Pick Carrier that pulls frame into Feed Rolls.
Содержание Joshua Captiva
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Страница 7: ...1 1 1 Description...
Страница 15: ...1 9 Figure 1 6 Joshua System Features...
Страница 23: ...1 17 Figure 1 16 Principal Parts of the Joshua Drive System...
Страница 31: ...1 25 Figure 1 22 Joshua Components Covers and Panels...
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Страница 33: ...2 1 2 Theory of Operation...
Страница 36: ...2 4 Figure 2 1 Pictorial ChartShowing JoshuaCamera Sequence of Operation...
Страница 57: ...2 25 Figure2 31 Circuit Diagram...
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Страница 59: ...3 1 3 Testing and Adjustments...
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Страница 73: ...4 1 4 Disassembly and Reassembly...
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Страница 109: ...5 1 5 Troubleshooting...
Страница 122: ...5 14 5 14...
Страница 123: ...5 15 Figure 5 7 Joshua Camera Timing Diagram...
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Страница 125: ...A 1 Appendix...
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