Optical elements made of diamond can even be sand blasted without losing their optical properties.

He worked on the optical and magnetic properties of crystals, discovering the rotation of the plane of polarisation by a magnetic field.

The following optical characteristics of the screen are important if the screen is to suit human eyesight (i) the brightness of the screen (ii) the contrast, i.e. the difference

Photonic crystal fibres were first developed by Philip Russell in 1998, and can be designed to possess enhanced properties over (normal) optical fibres.

Hausmann in 1847 in honor of the French physicist Jean Baptiste Biot, who, in 1816, researched the optical properties of mica, discovering many unique properties.

Electronic'' means relating to technology having electrical, digital, magnetic, wireless, optical, electromagnetic, or similar capabilities (United States Electronic Signatures in Global and National Commerce Act of 2000 Sect.

With cylinder diameter exceeding 165 mm

Drying machines

mechanical (including electromechanical) signalling, safety or traffic control equipment for railways, tramways, roads, inland waterways, parking facilities, port installations or airfields

New, of an engine power

Motor vehicles for the transport of goods

Drilling machines, boring machines and the like

Parts and accessories of vehicles of headings 8711 to 8713

Tanker trailers and tanker semi trailers

connectors for optical fibres, optical fibre bundles or cables

Microphones and stands therefore

Lithium

Telephone sets, including telephones for cellular networks or for other wireless networks other apparatus for the transmission or reception of voice, images or other data, including apparatus for communication in a wired or wireless network (such as a local or wide area network), other than transmission or reception apparatus of heading 8443, 8525, 8527 or 8528

Coin or disc operated record players

Manganese dioxide cells and batteries, non alkaline (excl. spent, and in the form of cylindrical or button cells)

Optical Disks

Optiques, 1995.

Automatic beverage vending machines

Microphones and stands therefor

Multiple loudspeakers, mounted in the same enclosure

Electrical transformers, static converters (for example, rectifiers) and inductors

Not mechanically propelled

Parts and accessories suitable for use solely or principally with the machines of headings 84.56 to 84.65, including work or tool holders, self opening dieheads, dividing heads and other special attachments for machine tools tool holders for any type of tool for working in the hand

Of static converters

Other trailers and semi trailers for the transport of goods

Machines for assembling electric or electronic lamps, tubes or valves or flash bulbs, in glass envelopes machines for manufacturing or hot working glass or glassware

Indicator panels incorporating liquid crystal devices (LCD) or light emitting diodes (LED)

Stereoscopic optical microscopes

Optical fibres or

no optical brighteners,

Solid state optical detectors.

Solid state optical detectors.

Optical fibre communication cables, optical fibres and accessories, as follows

The highest concentration of erbium in humans is in the bones, but there is also erbium in the human kidneys and liver.

Machines and apparatus for the manufacture of semiconductor devices or of electronic integrated circuits

Optical mirrors or transmissive or partially transmissive optical or electro optical components specially designed for use with controlled lasers

Optical infrared, multi spectral sensors

Radio navigational receivers

Other, colour

For working rice