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US 6,205,271 B1Granted
Optical integrator rod
AssigneeChristie Digital Systems, Inc.
InventorsJohn Bowron, Terry Schmidt
Life of this patent
Estimating the term…
Abstract
An optical integrator, comprising a solid integrator rod for internally reflecting light from an illumination source and transmitting the reflected light through an exit face thereof as a rectangular beam according to a predetermined aspect ratio, and a rectangular precision metal aperture with mirrored wall surfaces for extending the focal plane of the solid integrator rod beyond the exit face.
Claims6
An optical integrator, comprising:
- a) a solid integrator rod for internally reflecting light from a rectangular illumination source and transmitting said light through a rectangular exit face thereof as a rectangular beam according to a predetermined aspect ratio;
- and
- b) a hollow tunnel with planar interior mirrored wall surfaces for extending the rectangular exit face of said solid integrator rod to a focal plane in air which is beyond the rectangular exit face of the solid integrator rod.
An optical integrator, comprising:
- a solid integrator rod for internally reflecting light from an illumination source and transmitting the light through an exit face thereof as a rectangular beam according to a predetermined aspect ratio;
- and
- a hollow tunnel with interior mirrored wall surfaces for extending the exit face of said solid integrator rod to a focal plane in air which is beyond the exit face of the solid integrator rod, said hollow tunnel including a precision thin metal end cap having a rectangular portion with electroformed internally reflective surfaces extending beyond the exit face and a plurality of slotted wings which fit over said solid integrator rod.
An optical integrator, comprising:
- a solid integrator rod for internally reflecting light from an illumination source and transmitting the light through an exit face thereof as a rectangular beam according to a predetermined aspect ratio;
- and
- a hollow tunnel with interior mirrored wall surfaces for extending the exit face of said solid integrator rod to a focal plane in air which is beyond the exit face of the solid integrator rod, said hollow tunnel including a precision two-part aluminum frame screwed together over said solid integrator rod so as to extend beyond the exit face.
Dependencies are inferred from the claim text.