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Visible light transmission grating

Visible light transmission gratings are ideal for fixed grating applications such as spectrometers. The incident beam is dispersed at a fixed angle at the back of the grating. The alignment sensitivity of the transmission grating is low, which helps to reduce the alignment error. In most cases, the efficiency of these gratings is comparable to that of a reflective grating such as a reticle grating or a holographic grating for the same wavelength range.

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Transmission gratings require a relatively low score density to maintain high efficiency. The greater the scribe density, the greater the diffraction angle, and the refractive properties of the substrate material limit the transmission at long wavelengths, thereby reducing performance. However, the dispersion characteristics of the grating are suitable for compact systems using small detector arrays. Such gratings are also less sensitive to polarization. We offer visible light transmission gratings with four reticle densities and three sizes. Light contact with moisture, fingerprints, aerosols or any rough material can easily damage the grating. Therefore, the grating should only be taken when necessary, and only the edges should be touched. Rubber gloves or similar protective covers should be worn to prevent oil stains on the fingers from touching the grating surface. Except for using clean, dry air or nitrogen to blow the dust on the grating, any other operation is not allowed. The solvent may damage the grating surface.

可见光透射光栅

可见光透射光栅

Visible light transmission grating

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