Abstract: A, safe, hand-held laser beam generator, moulded plastic casing containing grooves for acvcurately aligning said laser beam generator, with cable anchoring means to prevent both the lateral and rotational movement of laser generator. The invention has application in surgery, theraputic treatments, laser pointing and materials processing.
Abstract: The invention relates to a system for pointing out aspects of images projected onto a viewing screen during a lecture, consisting of a laser beam generator held by the lecturer, a power supply to excite the said laser beam generator, a series of incoherent optical transmitters attached around the periphery of said viewing screen and optical detectors embedded in the tip of the said laser beam generator which respond to the light emitted by said series of optical transmitters on the viewing screen. The invention is only activated when the said laser beam generator is directed at the viewing screen because there has to be a direct line of sight between the optical transmitters attached to the periphery of the viewing screen and the detectors embedded in the tip of the laser beam generator for the laser beam to be generated.
Abstract: This invention relates to a scalable, composite laser oscillator for generating a single laser output beam by phase locking and adding together a number of outputs from smaller laser fibre oscillators the ends of which are coherently packed into an optically polished face on to which a dielectric laser mirror is deposited, one of said faces acting as an output aperture for the scalable beam. The invention uses a computer to switch the laser gain medium of the sub-oscillators on and off and this switching process can be used to generate patterns on the output aperture of the system.The invention is useful as a compact source of laser beam energy for use in industry, medicine, commerce and defence.