9 Scientific apparatus namely, Ti-sapphire lasers not for medical use; infrared lasers not for medical use; terahertz lasers not for medical use; femtosecond and picosecond lasers not for medical use; diode drivers, temperature controllers, photodiode monitors, data-loggers, external cavity frequency doublers and actuator drivers, all specially designed for lasers, not for medical use; measuring apparatus and instruments namely, gas detectors for detecting the presence of gas or vapours; lasers not for medical use; laser diodes; solid state lasers not for medical use; electronic control apparatus for lasers not for medical use; Internet enabled control apparatus for lasers not for medical use; Internet enabled electronic control apparatus for optics namely, for optical lenses; optical lenses for use with lasers not for medical use; recticles for optical lenses; focusing mechanisms for lasers; diaphragms, shutters, optical tables and rails all specially designed for lasers not for medical use; optical component holders namely, holders specially designed for optical lenses optical fibres, optical diaphragms, optical shutters, optical reticles and diodes; mounts and positioning apparatus specially designed for lasers, optical lenses, optical fibres, optical diaphragms, optical shutters, optical reticles and diodes, not for medical use; vibration isolators for controlling vibrations in lasers not for medical use; optical sources namely, lasers and laser diodes not for medical use; optical components namely, optical fibres; optical condensers, optical mirrors, optical windows and optical flats all specially designed for lasers not for medical use; beam samplers namely, devices specially designed for sampling laser beams, not for medical use; beam splitters namely, devices specially designed for splitting laser beams, not for medical use; optical couplers, separators, and polarisers all specially designed for lasers, not for medical use; electro-optical couplers, splitters, polarisers and modulators all specially designed for lasers, not for medical use; prisms and optical filters; optical beam deflectors and optical beam detectors both specially designed for lasers, not for medical use; computer software for controlling lasers, not for medical use; computer software for the control of lasers and laser systems; computer software for the control of optics and optical systems; microscopes; light sheet microscopes; biological miscroscopes; microscopes for medical use; microscope condensers; microscope illuminating devices; reflectors and prisms for microscopes; microscope lenses and reflectors