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Tokyo Japan
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HV-D27A/HV-D37A
Color Camera
Tentative
Specification
(
8/17
)
6.
External trigger signal timing
6-1. Pulse width control
1) Field on Demand (SHUTTER : EXT TRIG, EXT TRIG : MODE1, CCD MODE : FIELD)
The exposure time is controlled by external trigger pulse width. One field of the picture is
obtained after SYNC reset. However, the exposure time must not be below 1/1,000s, even the
minimum trigger pulse width.
EXT TRIGGER
V.SYNC
SHUTTER PULSE
READOUT PULSE
VIDEO OUT
WE PULSE
SYNC reset
more than 64
μ
s
EXPOSURE TIME
EXPOSURE TIME
= TRIG. PULSE WIDTH + MAX 64
μ
s
VD
VIDEO OUT
HD
SYNC reset
2 to 3H delay
NTSC:20H
NTSC
SHUTTER PULSE
VIDEO OUT
HD
PAL :25H
PAL
EXT TRIGGER
SHUTTER PULSE
READOUT PULSE
EXPOSURE TIME
READOUT PULSE
EXPOSURE TIME
*Possible to change polarity
*Possible to change polarity
SYNC reset
2.5 to 3.5H delay