Lighting apparatus
DCFirst Claim
1. A lighting apparatus having a light path defined therethrough, comprising:
- an effect wheel having a center and an effect region located radially outwardly of the center, the effect region being configured to alter the visual appearance of a light beam passing therethrough;
a rotation mechanism arranged to rotate the effect wheel about the center; and
a translation mechanism arranged to move the effect wheel betweena first position in which the effect region is outside of the light path, anda second position in which the effect region intersects the light path and in which the center of the effect wheel is outside the light path(iii) a third position in which the effect region intersects the light path and in which the center of the effect wheel is outside the light path and wherein a radius through the light path from the center of the effect wheel in the third position is substantially perpendicular to a radius through the light path from the center of the effect wheel in the second position.
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Accused Products
Abstract
Lighting apparatus includes an effect wheel which is mounted on a rotation mechanism. The rotation mechanism is mounted on a mechanism which moves the effect wheel from a position outside of the light path to a position in which the effect wheel intersects the light path to provide a continuous wheel effect. The translation mechanism can move the effect wheel between positions in which the effect wheel crosses the light path in a horizontal direction and in a vertical direction, respectively. The apparatus allows a continuous wheel effect to be added to a multi-purpose luminaire and also allows the direction of travel of the continuous wheel effect across the illuminated field to be continuously varied.
19 Citations
14 Claims
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1. A lighting apparatus having a light path defined therethrough, comprising:
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an effect wheel having a center and an effect region located radially outwardly of the center, the effect region being configured to alter the visual appearance of a light beam passing therethrough; a rotation mechanism arranged to rotate the effect wheel about the center; and
a translation mechanism arranged to move the effect wheel betweena first position in which the effect region is outside of the light path, and a second position in which the effect region intersects the light path and in which the center of the effect wheel is outside the light path (iii) a third position in which the effect region intersects the light path and in which the center of the effect wheel is outside the light path and wherein a radius through the light path from the center of the effect wheel in the third position is substantially perpendicular to a radius through the light path from the center of the effect wheel in the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lighting apparatus having a light path defined therethrough, comprising:
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an effect wheel having a center and an effect region located radially outwardly of the center, the effect region being configured to alter the visual appearance of a light beam passing therethrough the effect region of said effect wheel includes a removable optical component comprising; an optical portion adapted to alter the visual appearance of a light beam passing therethrough; a magnetic portion arranged to attach the optical component to a surface of the effect wheel by magnetic attraction; and at least one locating formation configured to engage with a complementary locating formation on said effect wheel to locate the optical component in position on said effect wheel; a rotation mechanism arranged to rotate the effect wheel about the center; and a translation mechanism arranged to move the effect wheel between a first position in which the effect region is outside of the light path, and a second position in which the effect region intersects the light path and in which the center of the effect wheel is outside the light path.
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Specification