Anyone know where i can learn about transimpedance amplifier photodiodes and ambient light sensors. My college engineering team wants achieve 10 percent energy reduction at a local office building. They are called Kawneer, a subdivision of ALCOA, the biggest manufacturer of aluminum products in the world if I am not mistaken. I will be specializing in the lighting design and want to use the ambient light sensor design as the main body for my part of the project.