Focal length: 100mm
O wavelength range: 330nm ~ 900nm (users can choose grating according to requirements and extend to a certain band in the range of 190nm ~ 20 mu m. )
Accuracy of wavelength: + 1nm (1200 line /mm grating)
Wavelength repeatability: 0.5nm (1200 line /mm grating)
The resolution: less than 1nm (1200 wire /mm grating, in accordance with the provisions of GB, with half width of spectral line method)
The stray light: less than 1 * 10-3 (He-Ne laser, 632.8 + 8 (nm) was determined by)
Aperture: a total of 0.1mm, 0.5mm, 1mm, 2mm, four options
Size: 145 * 145 * 120mm3 (excluding motor)

The instrument is small in size;
The sinusoidal mechanism of the instrument is isolated from the optical chamber, effectively reducing stray light, and avoiding the contamination of the surface of the optical parts by the chronic volatilization of the lubricating oil of the mechanical system;
The instrument is equipped with mechanical counter, can directly read the wavelength of monochromatic light, and equipped with stepper motor.