Photonics Dictionary: M

The small central portion of the human retina that is responsible for providing the clearest, and most distinct aspects of human vision. Light from an object directly forms an image on the macula...

A vacuum tube in which a magnetic field is superimposed onto the tube's electrical field. When the two fields are aligned, electrons from the photocathode are accelerated through the tube in a spiral...

A lens or lens system that produces an enlarged virtual image of an object placed near its front focal point.

In image processing, the mathematical relationships that link pixel brightnesses of input images to those of output images in point processes. Mapping functions are commonly used to apply...

The measurement of the intensity of spectral lines by the examination of a very small area under a microscope and the measurement of the density at any point of the image.

MWIR stands for mid-wave infrared, referring to a specific range of wavelengths within the infrared spectrum. Infrared radiation is categorized into three main regions based on wavelength:...

Minimum object distance, often abbreviated as MOD, refers to the closest distance at which a camera lens or optical system is capable of producing a sharp and focused image. In photography, this term...

A fiber optic bundle split along its length with the ends of the fibers extending separately to illuminate different points with a single light source.