Teledyne Princeton Instruments NIRvana HS, System Manual

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Chapter 8 Readout 55
Figure 8-3: Timing Diagram: Full Frame Readout, t
exp
> t
ro
8.1.2 Expose During Readout
Using Expose During Readout generally yields faster Frame Rates with no gaps in
acquired data as well as less lag time. Expose During Readout is particularly useful when
Exposure Time and Readout Time are in the same magnitude.
For Expose During Readout, the relationship between Exposure Time and Readout Time
may be as follows:
• Exposure Time is longer than or equal to Readout Time [t
exp
≥
t
ro
];
• Exposure Time is shorter than Readout Time [t
exp
< t
ro
].
Simplified timing diagrams illustrating each of these scenarios are presented in the
following sections, and associated Frame Rate implications are discussed.
441
1-01
6
9
_
0
0
5
3
F
RAME
1
2
3
F
RAME
F
RAME
E
XPOSE
R
EADOUT
E
XPOSE
R
EA
DOUT
E
XPOSE
R
EADOUT