Microelectromechanical apparatus with heating element

A method for controlling temperatures of a microelectromechanical apparatus in a closed-loop, wherein the microelectromechanical apparatus has an electronic system, one or more temperature sensors and one or more microelectromechanical devices, each having a mirror element and a heating element for heating the respective mirror element,

• wherein the electronic system controls, for each of the one or more microelectromechanical devices, a temperature value, determined by way of the electronic system, for the respective mirror element using the one or more temperature sensors in a closed-loop by adjusting a heating power of the respective heating element to a respectively specified set temperature value, wherein the one or more microelectromechanical devices each further comprise an actuator for moving the respective mirror element, wherein for each of the one or more microelectromechanical devices the heating element is arranged between the respective mirror element and the respective actuator, wherein each of the one or more mirror elements comprises a Bragg mirror.