US Patent 11958246 Laser oven with transparent chamber and external laser source

An apparatus includes a transparent chamber having a space therein for containing an object while heating under vacuum, at least one directed energy source configured to direct energy to heat the object positioned within the space of the transparent chamber, a cap on the transparent chamber, and a connection between the transparent chamber and at least one vacuum for creating a vacuum within the transparent chamber. The apparatus may further include at least one temperature sensor to measure temperature of the object. The apparatus may further include a control system, the control system operatively connected to the at least one temperature sensor and the at least one directed energy source and wherein the control system is a closed loop system to adjust laser power to provide more or less energy to heat or maintain the temperature of the object.