optical axis

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optical axis

In a lens element, the straight line which passes through the centers of curvature of the lens surfaces. In an optical system, the line formed by the coinciding principal axes of the series of optical elements.
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References in periodicals archive ?
High-speed transmission over optical fiber connector can be achieved when the optical axes are completely aligned.
Often several telecameras must be located in the zone of works with different orientation of their optical axes or the used telecamera must have capability to move in space and to change its orientation.
Collimation: Aligning two optical axes so they are parallel, or aligning the optical axis of an instrument with its physical axis (as when zeroing a rifle with an optical collimator or checking barrel alignment on a binocular).
The explosion of optical fiber-based infrastructure demands accurate micro-motors and adjustment devices to allow for physical alignment of optical axes with lasers and fiber-to-fiber connections.
The optical axes of the emitter and detector are parallel-aligned for optimized reflective operation.