Device for use in testing of fluid samples on microscope slides

Device in a camera for imparting pictures on a photographic film

Device included in a distance meter system

Device, and associated method, for determining distances between

Diagnostic microscope slide having multiple sample wells and cov

Dielectric optical Fabry-Perot waveguide device and method for m

Differential absorption ranging method and apparatus

Differentiation of targets in optical station based on the...

Diffracted energy auto-ranging system for a camera

Diffraction apparatus with correcting grating and method of maki

Diffraction grating having a plurality of different grating cons

Digital display circuit for a photographic exposure meter

Digital indication system for a camera

Digital information indicating system

Digital laser range finder emulator

Diode laser array

Direct reading stadia rod for use with laser level

Direction indicating reflector with planar reflector panels incl

Displacement detecting apparatus

Disposable volumetric slide