Overfill reduction for an optical modulator
1 Assignment
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Accused Products
Abstract
A technique is described to reduce overfill of light that has exited a light integrating device and is applied to an optical modulator in the form of an illuminating pattern. The illumination reduction technique makes the illuminating pattern more closely conform to a active planar surface of the optical modulator by at least partially providing anamorphic magnification of the illuminating pattern.
20 Citations
24 Claims
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1. (canceled)
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2. :
- A method of reducing overfill of light that has exited a light integrating device comprising;
applying to an optical modulator a form of an illuminating pattern;
providing anamorphic magnification of light forming the illuminating pattern to make the illuminating pattern more closely conform to an active planar surface of the optical modulator; and
uniformly magnifying the illuminating pattern along two orthogonal axes within the active planar surface. - View Dependent Claims (3, 4, 5)
- A method of reducing overfill of light that has exited a light integrating device comprising;
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6. :
- A method comprising;
imaging light from an integrating device onto an optical modulator to form an illuminating pattern on the optical modulator; and
anamorphically modifying an aspect ratio along two orthogonal axes of an active planar surface of the optical modulator to approach a designed device aspect ratio of the optical modulating device, the anamorphically modifying occurs at a location between the integrating device and the optical modulating device. - View Dependent Claims (7, 8)
- A method comprising;
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9. :
- A method, comprising;
manufacturing an anamorphic aspect ratio modification device to fit within an illumination relay to illuminate an optical modulator, the manufacturing the anamorphic aspect ratio modification device comprising;
positioning a first prism within the illumination relay, and positioning a second prism within the illumination relay in a manner that the second prism is displaced with respect to the first prism. - View Dependent Claims (10, 12, 13)
- A method, comprising;
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11. :
- An apparatus, comprising;
an optical modulator that images light from an integrating device exit via an illumination relay, the light that is being imaged at the optical modulator is in the form of an illuminating pattern; and
the illumination relay further includes an overfill reduction mechanism that reduces overfill of light that is applied to the optical modulator by making the illuminating pattern more closely conform to a planar outline of the optical modulator along two orthogonal axes of an active planar surface of the optical modulator, in which the overfill reduction mechanism at least partially includes an aspect ratio adjustment portion which more closely conforms the aspect ratio of the illuminating pattern to an aspect ratio of the planar outline of the optical modulator.
- An apparatus, comprising;
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14. (canceled)
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15. :
- An apparatus, comprising;
an overfill reduction means for reducing overfill of light that has exited a light integrating device, wherein the light is applied as an illuminating pattern to an optical modulator; and
anamorphic magnification means that the illuminating pattern more closely conform to an active outline for the optical modulator along two orthogonal axes of an active planar surface of the optical modulator. - View Dependent Claims (16, 17, 18, 19, 20, 21)
- An apparatus, comprising;
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22. :
- An apparatus, comprising;
an optical modulation portion that modulates light to be applied to a projection portion, the optical modulation portion includes an optical modulator, an integrating device, and an illumination relay, the optical modulator images light from an exit of the integrating device via the illumination relay, the light that is being imaged at the optical modulator is in the form of an illuminating pattern, the illumination relay comprises an overfill reduction mechanism that reduces overfill of light that is applied to the optical modulator by making the illuminating pattern more closely conform to an active surface of the optical modulator, in which the overfill reduction mechanism at least partially includes an aspect ratio adjustment portion which more closely conforms the aspect ratio of the illuminating pattern to an aspect ratio along two orthogonal axes of the active surface of the optical modulator; and
the projection portion images light from the optical modulator to create an image. - View Dependent Claims (23, 24)
- An apparatus, comprising;
Specification