dichroic mirror

optics

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Last updated

June 25, 2026

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A dichroic mirror is a type of mirror that exhibits dichroism, meaning it has the property of showing different colors when viewed from different angles or under different lighting conditions. This optical phenomenon arises from the Greek words di- (two) and chrōma (color).1

In optics, a dichroic mirror is essentially a beam splitter. It is designed to reflect certain wavelengths of light while allowing others to pass through. This selective reflection and transmission capability makes dichroic mirrors useful in various optical instruments and applications where precise control over light spectra is required.

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Electron tubes
…of a colour-selective type (a dichroic mirror) that reflected the light of one colour and transmitted the remaining colours. The mirrors, augmented by colour filters that perfected their colour-selective action, directed a blue image to the first tube, a green image to the second, and a red image to the…
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…of a colour-selective type (a dichroic mirror) that reflected the light of one colour and transmitted the remaining colours. The mirrors, augmented by colour filters that perfected their colour-selective action, directed a blue image to the first tube, a green image to the second, and a red image to the…
Read More