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

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

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.

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

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

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

Cokin is a French manufacturer of optical filters for photography.

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

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

With the electronic filters in place, the booming and crashing outside was stepped down to a dull, almost muffled roar.

A voice distorted by electronic filters to sound exactly like a friendly announcer said: "Hello!

I've been working with a new electronic filter that turns a single voice into a little doowop group.

The resonator acts as an electronic filter, eliminating all but the single frequency of interest.

Unfortunately, by pressure from the government, the network was obligated to use electronic filters.

The breakup was painful enough by itself, but the electronic filters made it maddening.

Chokes are typically used as the inductive components in electronic filters.

This can also be viewed as a high-pass electronic filter.

He said he was optimistic that much of the noise could be removed by electronic filters and other means.

An electronic filter removes the carrier frequency, and the data signal is output for use.