Light Budgets Before Biology

Stage Transfer Multiplies

source to detector

An optical chain can be checked as exact transfer fractions. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

The source starts the optical budget

The source signal is 24 training units before any sample claim.

Ssource=24S_{\text{source}}=24
Optical transferExact stage transfers set the output signal.sourcestagestage241812

Stage transfers multiply

The lens transfer is 3/4 and the filter transfer is 2/3, so the output is 12.

Sout=24⋅34⋅23=12S_{\text{out}}=24\cdot\frac{3}{4}\cdot\frac{2}{3}=12
Optical transferExact stage transfers set the output signal.sourcestagestage241812