Light beam deflection means
First Claim
1. A light beam deflection unit, comprising:
- a carrier seated in rotatable fashion around an optical axis;
a reflector arranged on the rotating carrier and having a reflection face oriented transversely relative to the optical axis;
a hollow sleeve connected to rotate with the carrier and which laterally at least partially surrounds the reflector, and which has a light entry aperture at an open end of the sleeve for an incident light beam at an end facing away from the reflector and a light exit aperture in a generated surface sidewall of the sleeve for a light beam deflected by the reflector;
light beam; and
at least one lens held by the sleeve at the light entry aperture for focussing the a transparent insert in the light exit aperture.
2 Assignments
0 Petitions
Accused Products
Abstract
A light beam deflection unit for deflecting a light beam has a carrier seated in rotatable fashion around an optical axis, a reflector arranged at the rotatable carrier, and a reflection face oriented transversely relative to the optical axis. The carrier is connected to a sleeve that laterally surrounds the reflector at least in certain regions, and that rotates with the carrier. The sleeve has a light entry aperture for the incident light beam at an end face facing away from the reflector, and a light exit aperture for the deflected light beam in the generated surface. An achromatic lens that is displaceable in the direction of the optical axis for the purpose of focussing the light beam and that is held by the sleeve is located in the light entry aperture. A wedge-shaped, transparent insert is arranged in the light exit aperture for astigmatism correction.
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Citations
18 Claims
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1. A light beam deflection unit, comprising:
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a carrier seated in rotatable fashion around an optical axis; a reflector arranged on the rotating carrier and having a reflection face oriented transversely relative to the optical axis; a hollow sleeve connected to rotate with the carrier and which laterally at least partially surrounds the reflector, and which has a light entry aperture at an open end of the sleeve for an incident light beam at an end facing away from the reflector and a light exit aperture in a generated surface sidewall of the sleeve for a light beam deflected by the reflector;
light beam; andat least one lens held by the sleeve at the light entry aperture for focussing the a transparent insert in the light exit aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A light beam deflection unit, comprising:
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a carrier seated in rotatable fashion around an optical axis; a reflector arranged on the rotating carrier and having a reflection face oriented transversely relative to the optical axis; a sleeve connected to the carrier and which laterally at least partially surrounds the reflector, and which has a light entry aperture for an incident light beam at an end facing away from the reflector and a light exit aperture for a light beam deflected by the reflector in a generated surface of the sleeve; at least one lens held by the sleeve at the light entry aperture for focussing the light beam; a transparent insert in the light exit aperture; the transparent insert comprising a planar inner light passage face directed into an interior of the sleeve and a planar outer light passage face directed away from the interior; the light passage faces being aligned wedge-shaped relative to one another; and the outer light passage face being aligned parallel to the optical axis. - View Dependent Claims (17)
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18. A light beam deflection unit, comprising:
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a carrier seated in rotatable fashion around an optical axis; a reflector arranged on the rotating carrier and having a reflection face oriented transversely relative to the optical axis; a hollow sleeve connected to rotate with the carrier at a first end and which laterally surrounds the reflector, and which has a light entry aperture for an incident light beam at a second end of said sleeve opposite said first end and a light exit aperture for a light beam deflected by the reflector in a side wall of the sleeve; and at least one lens held by the sleeve at the light entry aperture for focussing the light beam.
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Specification