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Operation

FIGURE 8. Pulse Width Async Shutter Timing

No-Delay Shutter

EXT. VINIT (Pulse width control)

HD

INT. VD after trailing edge of EXT. VINIT

Discharge

Exposure time set by pulse width

Transfer Gate

FDV

13H

Analog Video Sync

 

Vsync

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.5.2Internal Shutter Speed Control

The video signal starts with internal VD. The camera operates the reset and shutter in the same way as the external pulse width control mode. When the external VINIT pulse is applied, internal VD is latched to HD and the internal VD is delayed to set up the shutter speed period. The shutter speed is controlled by the dial switch from “1” to “8.” Video output timing starts right after the internal VD and single shots, FDV is output at the internal VD timing.

EXT. VINIT

HD

INT. VD with shutter speed control

Discharge

Exposure time set by shutter speed

Transfer Gate

FDV

13H

Analog Video Sync

TM-1400 Series Progressive Scan Shutter Cameras

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JAI TM-1400 operation manual Internal Shutter Speed Control, No-Delay Shutter