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6 terms
Photonics Dictionary: R
Clear All Filters x
transmitting x
R x
radiance factor
Ratio of the radiance of the specimen to that of a perfect reflecting or transmitting diffuser identically irradiated.
reflective heat mirror
->
diathermic mirror
A mirror coated to reflect cold (white) light while transmitting hot (infrared) energy.
retina
The retina is a light-sensitive tissue layer located at the back of the eye, opposite the lens. It plays a crucial role in the process of vision by converting light into neural signals that are sent...
rhomboid prism
A reflecting prism that is rhomboidal in shape. It has two parallel transmitting faces, and two parallel reflecting faces; the latter are oblique to the former (usually but not necessarily at...
right-angle prism
A type of 45-90-45° prism used to bend a beam of light through a right angle with the surfaces forming the 90° angle acting as transmitting faces.
Rugate filters
A Rugate filter is a type of optical filter that is designed to have a continuously varying refractive index profile throughout its thickness, rather than the discrete layers found in traditional...
Photonics Dictionary
R
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