1、 Purpose:
The spectral projector is one of the complete sets of equipment for spectrometers. Mainly used for qualitative or semi quantitative analysis of the spectral base plate captured by a spectrograph through projection amplification, compared with a standard spectral plate or a known concentration spectrum. It can also be used for general projection magnification.
2、 Principle
The light emitted by the light source is reflected by mirrors and spotlights onto the base plate, illuminating an area with a diameter of 15 millimeters. The optical path of the spotlight is bent 55 ° by an aluminum plated flat reflector. Insulated glass is used to eliminate the influence of thermal radiation on the condensing system. The projection objective allows the spectrum to be projected onto the projection screen through a flat mirror, while the special prism keeps the wavelength ruler upright when the latex surface of the spectrum substrate is facing upwards. Rotating the additional lens can change the magnification from 19.75 times to 20.25 times. Add a lens to image the filament onto the projection screen for adjusting the illumination intensity.

3、 Specifications
Magnification factor 20 times
Magnification adjustment range: 19.75 to 20.25 times
The effective diameter of the projection screen is 300 millimeters
The horizontal movement distance of the workbench is 220 millimeters
The vertical movement distance of the workbench is 80 millimeters
Light source 12V 50W
Transformer 220V/12V
Instrument weight 41 kilograms
Dimensions 780 × 660 × 850 millimeters

4、 Instrument completeness
1. One spectral projector
2. 5 lighting bulbs (12V 50W)
3. One user manual