Precision instruments, metrology, fluorescence, low-noise analog electronics – that’s what we do.
Microscope Objectives – NA, Cost, And Parabolas
We were looking at various microscope objectives – those lenses on the turrets that aim toward the slides.
Fourier Transform of 1/f Noise
Here’s a curious article by Steve Smith, author of The Scientist and Engineer’s Guide to Digital Signal Processing, where he shows that 1/f noise is its own Fourier transform!
Quantization Noise
We notice the assertion that A/D converter quantization noise is equal to ADU/SQRT(12), where ADU is the quantization unit or LSB.
CCD Cameras, Eyes, And Physics
This tech note was motivated by the question – how does the response of our eyes differ from the response of a CCD camera sensor.
Vision Response vs. Planck’s Black Body Curve
Color temperature is based upon the idea of a Planck black-body radiator.