Microsemi Corp-analog Mixed Signal Group, Ltd.

G & D Innovative Analysis Ltd.

Gustavo E Aizenberg

Dror Korcharz

Alon Zeev Ferentz

Arkadiy Peker

Nadav Barnea

Migel Jacubovski

Itay Cohen

An apparatus arranged to analyze a multi-layer optical material structure, the apparatus constituted of: a control unit, a light source outputting light; and a light receiver arranged to receive the light from the light source after interaction with the target structure, the control unit arranged to: detect the amplitude of the received light as a function of wavelength; perform a transform of a function of the detected amplitudes to the optical thickness domain; determine, responsive to a planned composition of the target multi-layer structure, optical thickness and amplitude of expected peaks of the performed transform to the optical thickness domain which correspond with interactions with single interface between layers; identify actual peaks of the performed transform to the optical thickness domain which correspond with interfaces between layers; and determine at least one physical characteristic of the target structure responsive to the determined peaks.

Method and apparatus for supervision of optical material production

A chipset for powering and controlling a plurality of light emitting diode (LED) strings. The chipset includes a controller having a pulse width modulating (PWM) functionality and a data transfer interface circuitry; and at least one dissipative active element array comprising a plurality of dissipative active elements. The dissipative active element array(s) are packaged to be thermally separate from the controller. The PWM functionality is arranged to individually pulse width modulate a current flow through each of the LED strings. Each of the plurality of dissipative active elements is associated with a particular one of the plurality of LED strings and is arranged to limit the current flow of the pulse width modulated current that flows through the particular LED string to a value, the value being responsive to a value output by the controller via the data transfer interface circuitry.

Powering and controlling light emitting diodes via thermally separated arrays of dissipative active elements

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Ness Ziona, Israel

Gustavo E Aizenberg