optic axis

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Related to optic axis: double refraction
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  • noun

Synonyms for optic axis

in a doubly refracting crystal, the line in the direction of which no double refraction occurs

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a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted

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References in periodicals archive ?
A uniaxial indefinite medium with its optic axis along tangential orientation can be described by a dielectric tensor in a polar coordinate:
Meller Optics otters sapphire and single crystal quartz cell windows for Beckman and other centrifuges that are scribed with the optic axis projection to simplify alignment.
Meller Centrifuge Cell Windows measure 19.03 millimeters in diameter, [+ or -] 0.03 mm by 0.5 mm thick [+ or -] 0.10 mm and are scribed on their edges with the projection of the optic axis to assist with proper alignment.
More than 15 types of S60 sensors are available, each equipped with a standard M12 connector that can be rotated in a 90[degrees] are so the sensor can be mounted in straight and right angle positions relative to its optic axis. In cable-out versions, the cable emerges at 45[degrees], which means that the cable can extend in virtually any direction.
With the high magnification of a stereomicroscope, we identified the ommatidium whose optic axis was aligned with that of the microscope.