Downhole uses of pressure-tuned semiconductor light sources

Drafting and macrophotography attachment for a microscope of the

Drift compensation for an optical metrology tool

Drift compensation for an optical metrology tool

Drift tube amplifier and method to amplify current

Drill bit position sensor

Drill diameter measuring machine

Drive device for a light-emitting component

Driver's eyes location determining apparatus and method

Driverless ellipsometer and ellipsometry

Driving circuit of a grating

Driving environment surveillance apparatus

Driving mechanism for driving an oscillating polarizer

Drop measuring apparatus, and a method of evaluating materials w

Droplet shape measuring method and apparatus

Droplets detecting system

Drum monochromator

Dry particle distribution measuring apparatus and method

Dry particle-size distribution measuring apparatus

DSP signal processing for open loop fiber optic sensors