Patent ID: 7414223

Claim:
A method for monitoring and controlling heat treatment in safety glass production, said method comprising: conveying flat glass panels through at least one heat treatment, reading, prior to the heat treatment, information which represents a load of glass panels and using the load information to control production or treatment parameters, wherein are the following steps applying high intensity light to a conveying plane, in which the load of glass panels travels towards a tempering or heat-strengthening treatment, and load information is read by means of at least one camera, which is directed to see by way of a mirror the light reflected from the glass, and the load information is used in the tempering or heat-strengthening treatment for controlling both radiation heating and convection heating, and the load information is also utilized for monitoring the production of glass and for recording data associated with production, wherein the high intensity light is applied to the bottom surface of the conveying panel and the light reflected therefrom is reflected with the mirror to the at least one camera positioned below the conveying plane.