Optically controlled micro-electromechanical systems (MEMS) is disclosed. In one embodiment, a MEMS device may include a rotatable mirror having an optical sensor that is in electrical communication with the rotatable mirror via an associated electrode. Electrical potential may be supplied to an appropriately configured optical sensor so that a variable range of voltages may be supplied to the rotatable mirror. In operation, an optical control beam may be directed onto the optical sensor where i...

A process for preparing an aqueous composition for the preparation of optically clear products, especially beverages, having enhanced stability in syrup and bioavailability for human or animal healthcare. The compositions include an oil soluble ingredient and a primary and a secondary surfactant which match the fatty acid profile of the oil soluble ingredient and follow specific ratios of oil soluble ingredient to emulsifier and specific ratios of primary to cosurfactant.

The invention relates to an electro-optically active display device, comprising at least one individually addressable pixel, each pixel being provided with an obstructing element (3), such as a reservoir light shield, a black matrix or a mirror element. According to the invention, a portion of at least one component is positioned beneath the obstructing element in such a way that the portion is not visible for a viewer of the display device.

A method of measuring the three-dimensional volume or perimeter shape of an interior cavity includes the steps of collecting a first optical slice of data that represents a partial volume or perimeter shape of the interior cavity, collecting additional optical slices of data that represents a partial volume or perimeter shape of the interior cavity, and combining the first optical slice of data and the additional optical slices of data to calculate of the three-dimensional volume or perimeter sh...

An optically pumped semiconductor laser and an optical pumping method are disclosed. The optically pumped semiconductor laser includes an output mirror and a reflective mirror for forming a resonant region therebetween, a gain medium disposed between the output mirror and the reflective mirror and a light source for applying a source light in a direction between the output mirror and the gain medium to activate the gain medium, whereby the optical axes of the light from the source light and the ...

The invention relates to an optically variable marking comprising a semiopaque substrate with a first surface that is covered with an optically variable layer that is for example a liquid crystal polymer layer or a layer comprising pearlescent pigments, and a second surface that is partially covered with a metal layer in the shape of a pattern, to methods of its preparation and to its use for decorative or security applications.

A method for optically recording information on an optically re-writable information medium is described. A mark is formed on a recording medium by radiating a laser light having the strength of the short recording pulse signal followed by the off-pulse signal. The recording film is heated to form the mark and the mark is extended by thermal diffusion while the off-pulse signal is provided. Therefore, the length of the recorded mark ML is longer than the recording pulse width at a predetermined ...

Apparatus and methods for transferring audio between a headset and electronic equipment over an optical link. The apparatus includes an electro-optical interface for electrically connecting to the electronic equipment, an optical link, and an electro-optical headset. Audio from the electronic equipment modulates a light source in the electro-optical interface. A modulated light signal is transmitted through the optical link to the electro-optical headset where it is demodulated and reproduced as...

The invention relates in particular to the compounds of general formula ##STR00001## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 represent various radicals; their use as medicaments and pharmaceutical compositions containing them. These compounds are particularly useful for the treatment of cancer.

An optically variable security device comprising a thin film reflection filter structure (23) which exhibits a first optically variable effect; and a relief structure (20) on or in the thin film reflection filter structure which exhibits a second optically variable effect.