Photonics Dictionary: P

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parabolic mirror -> paraboloidal mirror

A concave mirror that has the form of a paraboloid of revolution. The paraboloidal mirror may have only a portion of a paraboloidal surface through which the axis does not pass, and is known as an...

paraboloidal mirror

A concave mirror that has the form of a paraboloid of revolution. The paraboloidal mirror may have only a portion of a paraboloidal surface through which the axis does not pass, and is known as an...

paraboloidal reflector -> paraboloidal mirror

A concave mirror that has the form of a paraboloid of revolution. The paraboloidal mirror may have only a portion of a paraboloidal surface through which the axis does not pass, and is known as an...

paraxial ray

A ray that behaves according to paraxial equations; one that lies close to and almost parallel to the optical axis.

photon sieve

A photon sieve is an optical device used in the field of optics and imaging. It's designed to focus and shape light, typically for applications such as imaging or microscopy. The photon sieve...

positive spherical aberration -> spherical aberration

Spherical aberration is an optical aberration that occurs when light rays passing through a lens or curved optical surface do not converge or diverge to a single focal point. Instead of focusing to a...

principal focus -> focal point

That point on the optical axis of a lens, to which an incident bundle of parallel light rays will converge.

principal point of focus -> focal point

That point on the optical axis of a lens, to which an incident bundle of parallel light rays will converge.

principal section

A plane passing through a crystal that has the optic axis of the crystal and the light ray under consideration.

Photonics DictionaryP

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