Abstract: There is disclosed a method and apparatus for successively and repeatedly illuminating a number of remote areas collectively defining a larger area with light in the form of a beam or beams to induce a physiological blink response or optical blink reflex in the illuminated eye of an animal (e.g., a human) within the area being illuminated. Each area being intermittently illuminated long enough to induce a blink response from an animal (e.g. human) subject there, after which another area(s) is illuminated in the meantime while illumination of the initial area is not required since the subject(s) there would still be recovering from their blink response.

Abstract: There is disclosed a method and apparatus for successively and repeatedly illuminating a number of remote areas collectively defining a larger area with light in the form of a beam or beams to induce a physiological blink response or optical blink reflex in the illuminated eye of an animal (e.g., a human) within the area being illuminated. Each area being intermittently illuminated long enough to induce a blink response from an animal (e.g. human) subject there, after which another area(s) is illuminated in the meantime while illumination of the initial area is not required since the subject(s) there would still be recovering from their blink response.

Abstract: A laser-excited X-ray source in which the efficiency of conversion of laser energy into X-ray energy, and the average X-ray output power, are increased by providing laser light, which is focussed on a target to generate X-rays, in the form of trains of very short pulses with a pulse duration in the range 1-10 picoseconds. Preferably it is arranged such that successive pulses in a train are focussed at adjacent but different points on the target.