There really isn’t such a thing as ‘just an LED,’ these are semiconductor ... requires what’s known in the business as an integrating sphere (aka an Ulbricht sphere), but being a ...

This enables a customer to feed wires to their custom-modified sample cup holder. Below are the CIE values and total luminous intensity plots of a simple LED quantified using the QuantaPhi-2. The ...

If you’ve never heard of an Ulbricht sphere, don’t worry — it’s also known as an integrating sphere, and that makes its function a little more apparent. As [Les Wright] explains ...