Optical Efficiency

What is Optical Efficiency?

• A measurement of how much light shines from the LEDs, compared to how much light lands on-target.
• We would take our measured lumen value from only the circuit board, and compare it to the effective lumen value (both of which are only used for engineering purposes).
• This tells us how efficient the optical system is – the % of total light that reaches the target.
• For example: if the circuit board generates 1000 lumens, but only 400 lumens are measured as hitting the target area, we'd achieve an optical efficiency of 40%
• This is somewhat subjective, since it's based on how big the “target” measured area is.

How do we use it at Diode?

• Engineering uses this to see how efficient our optical designs are.
• We generally comment on this in certain videos, but we do not provide specifics to customers. We simply claim our design is “more efficient” than another, for example.