Holographic concave grating is a kind of important dispersion of spectral instrument elements, both dispersion and imaging function, can constitute only one optical effect the spectrum instrument. Using holographic recording technology for variable pitch curve groove concave grating, has the ability of aberration correction, compared with the machine carved grating in aberration, signal-to-noise ratio and cost.

Company according to customer demand for holographic concave grating (slit spectrum plane position, spectrum width, incident, emergent arm, etc.) to design and manufacture. Using wavelength ultraviolet, visible and infrared wavelengths (200 nm to 2000 nm), grating diameter 5 mm - 500 mm (3 mm x 5 mm, for example, 5 mm x 5 mm, 10 mm x 10 mm, 60 mm x 60 mm).