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A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.
A speaker giving a presentation with an RF pointer in his left hand. Using a wireless clicker, helps the presenter to move freely, instead of being obliged to stay next to the computer, can get closer and keep in touch with the audience, watching the presentation together with them, being able to use the built-in laser pointer, in order to emphasize specific points in the dialogue with the ...
Lomak keyboards being used with a head-pointer and a hand-pointer. LOMAK is an acronym for Light Operated Mouse And Keyboard.It is an assistive technology device designed for use by people who cannot use a standard computer keyboard and mouse.
Robert McNamara points at a Vietnam map using a pointing stick.. A pointer or pointing stick is a solid rod used to point manually, in the form of a stick, but always finished off or artificially produced.
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Also used pulsed for marking and micromachining. A frequency doubled nd:YVO 4 laser is also the normal way of making a green laser pointer. Neodymium-doped yttrium calcium oxoborate Nd:Y Ca 4 O(BO 3) 3 or simply Nd:YCOB ~1.060 μm (~530 nm at second harmonic) laser diode
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