Device for detecting the focal value for the focusing of optical

Device for detecting the presence of photographic film as the fi

Device for excellently coupling a laser beam to a transmission m

Device for indicating distance measuring zone of camera

Device for irradiating liquid and pasty substances

Device for optical connections of one or more optical emitters w

Device for optical-mechanical scanning

Device for splitting part of light incident on an image forming

Device for transmitting and receiving optical data on the same o

Device for transporting radioactive material

Device having two optical ports for switching applications

Device including a radiation sensor

Device mountable in a craft for the recording of data from a rem

Dielectric waveguides

Diffraction free arrangement

Digital optical receiver circuit

Digitally controlled fiber optic recording device

Direct detection of low-energy charged particles using metal...

Directional coupling-device for multi-mode optical fibres

Directional optical fiber signal tapping assembly