Precision instruments, metrology, fluorescence, low-noise analog electronics – that’s what we do.
Radiometry Explained by NIST
The measurement of light is complicated by a variety of units and concepts that are not used in other fields.
Light Uniformity Testing
For both a clinical test microscope, and a home theater HDTV projection display, the light from the source must be quite uniform.
Radiometric Measurements
It’s easy to confuse the units of LED light output. Steradians, luminous intensity, etc.
Image Analysis With (Free) ImageJ Software
Lately we’ve been able to use our digital camera to perform some nice measurements, through the help of a program called ImageJ.
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.