Optical system for day and night use
First Claim
1. A system for displaying high contrast images over a scene on a helmet mounted display comprising:
- a source of light;
a digital reflective device or a reflective addressing device containing a plurality of micromirrors for deflecting said source of light in a pixelated manner via a plurality of pixels, wherein each pixel corresponds to a deflection of each micromirror on said digital reflective device and wherein the intensity of each pixel is proportional to the duration of said deflection; and
means for controllably deflecting said micromirror as a function of time.
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0 Petitions
Accused Products
Abstract
A helmet mounted display for mounting on a helmet includes a supporting structure removably mounted at at least one point to the helmet, a visor, mounted on the structure, and at least one optical system, for projecting an image on the visor from the side of the pilot'"'"'s head. The at least one optical system is side mounted on the supporting structure, and includes a source of light and a digital reflective device or a reflective addressing device. The digital reflective device contains a plurality of micromirrors for deflecting the light source in a pixelated manner via a plurality of pixels. The deflection of the micromirror can be controlled as a function of time.
131 Citations
26 Claims
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1. A system for displaying high contrast images over a scene on a helmet mounted display comprising:
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a source of light;
a digital reflective device or a reflective addressing device containing a plurality of micromirrors for deflecting said source of light in a pixelated manner via a plurality of pixels, wherein each pixel corresponds to a deflection of each micromirror on said digital reflective device and wherein the intensity of each pixel is proportional to the duration of said deflection; and
means for controllably deflecting said micromirror as a function of time. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for displaying high contrast images over a scene generated by an optical system in a helmet mounted display comprising:
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a source of light;
at least one display optical system for producing an optical image;
means for switchably deflecting between said source of light and said optical system as a function of time for creating a high contrast image from said source of light; and
means for superposing said source of light over said optical image. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A system for displaying two or more images comprising:
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at least one first image source for producing at least one first image;
at least one second image source for producing at least one second image;
means for switchably deflecting between said at least one first image source and said at least one second image source as a function of time and superposing said at least one first image and said at least one second image to form an observably single image, wherein said superposition intensity for each of said at least one first image and said at least one second image. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for combining two images comprising the steps of:
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creating a first image;
creating a second image;
switchably alternating between said first image and said second image to create a viewable combined single image, wherein said switching is timed on a pixel by pixel basis to vary the intensity of each of said first and said second image on a pixel by pixel basis.
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Specification