42 Providing scientific research, development and design services in the field of scientific, nautical, surveying, electric, photographic, optical, weighing, measuring, signaling, checking, supervision, and teaching apparatus and instruments, namely, apparatus for recording, transmission or reproduction of sound or images, blank magnetic data carriers, blank computer discs, blank recordable optical discs, central processing units for processing information, data, sound or images, lasers for medical and non-medical use, sensors, namely, light sensors, color sensors, gas sensors, temperature sensors, magnetic sensors, pressure sensors, timing sensors, motion sensors, position sensors, detectors, namely, basic light detectors, infra-red detectors, and low level light detectors, optical equipment, namely, optical modulators and optical beam deflectors, optical aspherical lenses, optical fiber collimators and optical infra-red and gain fibers, namely, fiber optics, cameras, liquid crystal displays, flat panel display screens, organic light emitting diode (LED) display screens, video displays mounted in eyeglasses, photonic products, namely, flashlamps, atomic clocks and luminescent LED's, laboratory equipment, namely, spectroscopes, spectrophotometers utilizing high performance optics to minimize stray light and maximize optical performance, LED's, LCD panels and LCD projectors, optical fiber cable and optical fibers sold as a component of fiber optical cables, computer software for the operation of optical components, display screens, camera and vision systems, sensors and detectors, lasers and LED's, infrared interruptive opto-switches, flag and slotted switches; providing scientific research, development and design services in the field of the parts and fittings for all the aforesaid goods; providing information, consultancy and advisory services via the internet in the field of providing scientific research, development and design services of the aforesaid goods; installation, maintenance and repair of computer software for the operation of optical components, display screens, camera and vision systems, sensors and detectors, lasers and LED's