Laser scanner

A - Human Necessities – 61 – B

Patent

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Details

A61B 18/18 (2006.01) A61F 9/008 (2006.01)

Patent

CA 2629108

A laser scanner is disclosed. The laser scanner comprises a laser source, a first optical element, and a focusing element. The first optical element is adapted to move along the optical axis of light from the laser source. The focusing element receives laser light from the first optical element and is adapted to move orthogonally to the optical axis. Optionally, the focusing element may include multiple focusing lenses. A first focusing lens may be adapted to move along a first axis which is orthogonal to the optical axis. A second focusing lens may be adapted to move along a second axis which is orthogonal to the optical axis and to the first axis. The laser scanner may also include a second optical element which receives light from the focusing element and is adapted to effectively increase the focal length of the focusing element without increasing its f number.

La présente invention concerne un scanner au laser. Le scanner au laser comprend une source laser, un premier élément optique et un élément de focalisation. Le premier élément optique est conçu pour se déplacer le long de l~axe optique d~une lumière de la source laser. L~élément de focalisation reçoit une lumière laser du premier élément optique et est conçu pour se déplacer de manière orthogonale à l~axe optique. Facultativement, l~élément de focalisation peut comprendre plusieurs lentilles de focalisation. Une première lentille de focalisation peut être conçue pour se déplacer le long d~un premier axe orthogonal à l~axe optique. Une seconde lentille de focalisation peut être conçue pour se déplacer le long d~un second axe orthogonal à l~axe optique et au premier axe. Le scanner au laser peut également comprendre un second élément optique qui reçoit une lumière de l~élément de focalisation et est conçu pour accroître effectivement la distance focale de cet élément sans accroître son nombre d~ouverture.

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