Phototherapy apparatus

A phototherapy apparatus for delivering light to an infant, the device comprising:

• a light source sheet including a backing, light emitters mechanically supported by the backing, an isolating covering, and electrical pathways located on the backing for delivering electrical power to the light emitters, wherein the light emitters are configured to emit light and the isolating covering is configured to electrically isolate the electrical pathways and the light emitters from an external environment;
• and
• a spacing layer configured to diffuse the light from the light emitters before the light is emitted from the spacing layer, wherein the spacing layer contains at least one internal void which is positioned to overlap with at least one light emitter;
• at least one sensor located adjacent to the at least one light emitter, wherein the at least one internal void that overlaps the at least one light emitter also overlaps the at least one sensor,
• wherein the sensor is configured to identify covered light emitters that are blocked by an obstruction, such that the light emitted by the light emitter is blocked by the obstruction from escaping into an external environment;
• and
• processor circuitry configured to control properties of the light emitted by the light emitters by:
• receiving from the sensor the identified covered light emitters;
• identifying uncovered light emitters as the light emitters that are not the identified covered light emitters;
• and
• controlling the determined uncovered light emitters, such that an output power of the uncovered light emitters is reduced compared to an output power of the covered light emitters.