Colour temp. regulation system for heated object - uses two radiation sources and optical system with absorber and prism to adjust radiation falling on detector unit

摘要

The colour temp. control system for an object uses two sources of radiation. The appts. includes an input element (1) near the object, a unit (2) to set the required value, a setting unit (3) with a scale (4) and a monochromator (5). - The latter is followed by a radiation modular (6) and receiver (7), which produces signals amplified by an amplifier (8) with output terminals (11) connected through to the energy source (15/16) and a furnace heater (17) for the heated object (18). Between the input element, typically a lens, and the monochromator is an optically combined absorber (13) and prism (12) with connections to the setting unit (3) and scale (4).