G&H Trademark

[ Precision optical components, namely, lenses, prisms, filters, mirrors, wave plates, wave plates, and liquid crystal displays for optical applications; voltage-controlled wave plates being Pockels cells for altering the polarisation of light; optical sensors; non-linear optical devices, namely, non-linear optic (NLO) crystals for frequency conversion; high-precision custom glass, crystalline and ceramic materials, namely, filter glasses, quantum dots and silicon carbide diodes for scientific experiments in laboratories; ] acousto-optic devices and instruments, namely, Q-switches being intra-cavity optical switches for lasers [, spatial light modulators for optical instruments, tunable filters being filters for optical devices, frequency shifters being optical frequency converters for optical instruments, deflectors being light beam deflectors for optical devices, and ] RF drivers being electrical signal generators for acousto-optic devices; fiber-coupled acousto-optic modulators; electro-optic components, namely, Pockels cells being cells for altering the polarisation of light [, and high-voltage electronic drivers for Pockels cells being electrical signal generators needed to operate Pockels cells; light measurement apparatus and instruments, namely, spectrometers, photometers, and endoscopes; lasers and laser components, namely, slabs for slab lasers in the nature of rectangular cross-section doped glass, slabs for slab lasers in the nature of rectangular cross-section doped crystals; liquid crystal displays used specifically for optical, acoustic and electronic applications; laser rods in the nature of circular cross-section doped glass, laser rods in the nature of circular cross-section doped crystals, free-space and fiber-coupled isolators for use in eliminating back-reflections in optical apparatus; lasers for non-medical purposes; fiber lasers; laser pointers; laser rangefinders; laser speed detectors; acousto-optic mode lockers in the nature of modulators which modulate the loss within a laser cavity at its resonant frequency to generate very narrow laser pulses of high intensity; high reflectivity mirrors; lenses for transmission and imaging; laser cavity and beam conditioning optics in the nature of beamsplitters, and prisms; laser diodes; laser diode drivers; fiber optics; fiber optic cables; fiber optic connectors; fiber optic light and image conduits; fiber optic couplings; fiber optic periscopes; fiber based optical sources, namely, novel fiber geometries for reducing unwanted optical feedback from a fiber end-facet or from the interface between a fiber core and another fiber core or a transparent optical material to improve the performance of the fiber source or the fiber device; conductive fibers, namely, high power fibers for conducting laser beams; optical fiber amplifiers; photodetectors in the nature of sensors of light or other electromagnetic energy; fiber optic components and optical modules, namely, tap couplers being parts of optical fiber telecommunications, metrology apparatus, laser systems, wavelength combiners and splitters, polarization maintaining couplers, and multimode power combiners for use in combining power sources in fiber lasers; couplers for optical splitting; image processing software and computer operating software for use with the aforesaid goods ]

[ Professional technology consultancy, ] research and design services relating to the design, and calibration of optical, acoustic, electronic, acousto-optic and electro-optic devices [, apparatus and systems, fiber-optic devices, lasers and imaging apparatus and systems; design and development of computer programs for the foregoing goods; engineering services; material testing services; chemical materials analysis services; optical radiation measurement calibration services; information, consultancy, and advisory services relating to all of the aforesaid services ]

Machines for use in manufacturing of acousto-optic, [ modulators, fiber coupled modulators, beam deflectors, ] frequency shifters, [ mode lockers, multi-channel modulators, pulse pickers, cavity dumpers, ] Q-switches being intra-cavity optical switches for lasers, [ RF drivers, tunable filters, semiconductor wafers, ] Pockels cells being cells for altering the polarisation of light [, high-voltage electronic drivers for Pockels cells being electrical signal generators needed to operate Pockels cells, laser diodes, laser diode drivers, fiber optics, fiber optic cables, fiber optic connectors, fiber optic light and image conduits, fiber optic couplings, fiber optic periscopes, lenses, prisms, filters, mirrors, and machine components for use in the aerospace, defence, industrial, life sciences and scientific research sectors; machine coupling and transmission components, except for land vehicles, and parts therefor ]

[ Treatment of precision optical surfaces; treatment of glass, crystal quartz, optical glasses, and fused silica; treatment of materials in the nature of crystal bonding; ] adhesive-free bonding process for the assembly of parts [, fittings, and components and adhesive-free bonding process for precision optical surfaces; assembly of products for others; technology consultancy relating to the manufacture of optical, acoustic, electronic, acousto-optic and electro-optic devices, apparatus and systems, fibre-optic devices, lasers and imaging apparatus and systems; information, consultancy, and advisory services for all of the aforesaid services ]

Optical components and systems for use for medical applications, namely, acousto-optic Q-Switches being parts of optical surgical apparatus [, spatial light modulators for use in optical diagnostic apparatus, tuneable filters for use in filtering light in optical diagnostic apparatus, frequency shifters for use in changing optical frequencies in diagnostic apparatus, light deflectors and RF electronic drivers being parts of optical diagnostic apparatus, pockels cells and optical drivers being parts of optical surgical apparatus ] ; [ optical sources for medical use, namely, optical diagnostic apparatus for use in confocal microscopy, forensic analysis, and biomedical diagnostics; lasers for medical use; ] laser pointers for medical use; medical apparatus and instruments, namely, electromagnetic medical diagnostic imaging apparatus, and light emitting diode (LED) apparatus for lighting incorporated into medical instruments, for use in optical coherence tomography (OCT) imaging; [ medical imaging apparatus; fiber-based medical diagnostic systems comprising optical fibers, fiber optic sensors, and medical imaging transducers; optical fibers and sensors for medical diagnostics and treatment applications; fiber-optic medical imaging apparatus; optical-fiber measurement systems comprising optical fibers, fiber optic sensors, and medical imaging transducers for medical diagnosis; directional couplers, attenuators, fiber lasers, spectral filters, isolators, circulators, combiners and ] splitters [, polarization-dependent loss compensators, polarization scramblers, limiters and high speed optical switches for use in optical coherence tomography (OCT) imaging; lasers incorporating optical fibers for medical use; optical imaging apparatus for medical use in optical diagnostic purposes; laser tweezers for medical use, namely, for use in optical scanning; optical sources and apparatus for therapeutic applications, namely, optical surgical apparatus for use in medical surgery in the fields of ophthalmology and urology; apparatus for medical analysis and medical purposes, namely, blood flow measurement and blood testing; and parts and fittings for all of the aforesaid goods ]

Medical services [ ; medical services in the field of pathology; medical testing for diagnostic or treatment purposes; information, consultancy and advisory services relating to all of the aforesaid services ]