LASER LIGHTING DEVICE FOR LIGHTING BAND OR LINEAR PORTION
FIELD: optics. ^ SUBSTANCE: laser lighting device for lighting band or linear portion S on object B, primarily on sheet material includes source 2,2' of laser radiation, optical system 4 for expanding the beam, spatially expanding fan-shaped laser beam L2 in two mutually perpendicular direction...
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| Format: | Patent |
| Sprache: | eng ; rus |
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| Zusammenfassung: | FIELD: optics. ^ SUBSTANCE: laser lighting device for lighting band or linear portion S on object B, primarily on sheet material includes source 2,2' of laser radiation, optical system 4 for expanding the beam, spatially expanding fan-shaped laser beam L2 in two mutually perpendicular directions, and also an astigmatic lens 6, upon which fan-shaped laser beam L2 falls, focal distance f2 of which is shorter than distance A from beginning of fan-shaped laser beam L2 and focal plane of which lies on object B or close to it. ^ EFFECT: generation of a beam on surface, with high intensiveness, with low light losses; human eyes are protected from laser radiation. ^ 8 cl, 3 dwg |
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