Photron - Information on High Speed Imaging

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Offset	In reference to electronic imaging is a method to correct for fixed pattern noise and to assure that reference levels are correct. Specifically, a black level offset correction removes the fixed pattern noise and normalizes the signal for the A/D converter to have full range on the remaining signal level.
Optical coupling	In electronic imaging this refers to a lens element that couples between two optical devices (I.e. intensifier and a camera). Typically, 80% of the light transmitted through a lens coupler is lost and typical reduces a camera's sensitivity at least one f-stop.
Optical noise	Any noise that can be traced to optical components. Examples of optical noise are where the reflection of incident light on a sensor surface (mirror like) is reflected on the backside of the sensor glass lid and alias to adjoining pixel site. Other examples are the spread spectrum effect of IR exposing multiple pixels through the multi-path of the light.
Output amplifier	In sensor technology, the output amplifier is the last structure before reaching he bonding pads. The driver must be efficient and capable of driving a high capacitive load. Many output amplifiers have multiple stages to increase the drive capability without raising the read noise in the output.

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