D-shape laser beam projector

G - Physics – 02 – B

Patent

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Details

G02B 27/18 (2006.01) G02B 3/08 (2006.01) G02B 13/18 (2006.01)

Patent

CA 2193134

An optical lens is useful as a D-shape laser beam projector. The lens consists of a known linear diverging element enabling the expansion of a laser beam into an uniform line, and a matching section of an axicon, either a symmetrical half-axicon or a non-symmetrical one, cut in a plane passing through, or nearly through, its apex. The two components, joined together in a plane of cutting of the axicon section, are positioned in a laser beam such that the beam is incident on both apices of the linear diverging element and the axicon section.

ne lentille est utilisée comme projecteur en D pour un faisceau laser. Elle est constituée d'un élément divergent linéaire connu qui permet d'élargir un faisceau laser de façon à former une ligne uniforme, et d'une section correspondante de miroir conique tronqué qui peut être un demi-miroir symétrique ou asymétrique, coupé dans un plan passant par le sommet ou très près de ce dernier. Les deux éléments, qui sont joints ensemble dans un plan de coupe de la section de miroir conique tronqué, sont placés sur le trajet d'un faisceau laser de façon que celui-ci tombe sur le sommet de l'élément divergent linéaire et sur celui de la section de miroir conique tronqué.

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