Are you trying to detect heat or light? You can create a simple circuit
using a photo resistor to track to a light source. To detect heat, you will
need to be able to detect the infrared radition being given off by the bulb.
You can do this with an Infrared Thermometer (IRT) or a Thermal Imaging
Sensor of some type. The IRT will be the cheaper option. Do a google
search on IRTs. IRTs can measure the temp of the heat source from quite a
Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here.
All logos and trade names are the property of their respective owners.