Systems, methods, and computer-readable media for thermally managing electronic devices using dynamic optical components are provided. At least one of the reflectance and the transmittance of incident electromagnetic radiation of a dynamic optical component on an electronic device may be adjusted based on a detected variable device characteristic of the device, such as a temperature of a device component. By adjusting the reflectance and/or the transmittance of the dynamic optical component, different portions of the incident electromagnetic radiation may be directed from the dynamic optical component for changing the variable device characteristic.