Optical filters are used to select different wavelengths of light.

By changing the optical filter, different substances can be measured.

The light of the flame is filtered through an optical filter.

This limitation often necessitates the use of complex data analysis and optical filters.

Cokin is a French manufacturer of optical filters for photography.

The phase contrast between the two rays can be detected with the human eye using particular optical filters.

This property is used for frequency-selective optical filters, which can alter the color of incident light.

In filter photometers, optical filters are used to give the monochromatic light.

They are used to characterize the performance of sunglasses, laser protective glasses, and other optical filters.

The article on optical filters has material relevant to photographic filters.

Optical filters were originally developed for purposes other than signal processing such as lighting and photography.

Light is collected using optical filters that match the emission spectrum of the fluorophore.

Safety aspects of optical filter (purpose and warning to prevent removal)

Subtractive mixing is done by selectively removing certain colors, for instance with optical filters.

He set a pair of protective glasses near me and placed a blue 450 nanometer optical filter over the output lens.

Digital filters are like optical filters, which pass one group of wavelengths while absorbing others.

The optical filter in welding goggles, face mask or helmet must be a type which is suitable for the sort of work being done.

Optical filters are used to combine and split optical wavelengths onto the single fiber.

Additionally, as implied earlier, two or more ring waveguides can be coupled to each other to form an add/drop optical filter.

Simple color e-paper consists of a thin colored optical filter added to the monochrome technology described above.

Thin films have many commercial applications including anti-reflection coatings, mirrors, and optical filters.

Thin films are used commercially in anti-reflection coatings, mirrors, and optical filters.

The quasar dipped to the horizon now; optical filters in the bubble around her softened its shape, turning it red.

Materials with broad absorption bands are being applied in pigments, dyes and optical filters.

A number of different optical filters, allowing the operator to choose from a variety of different response characteristics.