Color-balanced glare reduction system for flash cameras
AssigneeBrandeis University
InventorRobert B. Meyer
Life of this patent
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Abstract
A flash camera with glare controlling ability for general photographic use is described. It includes at least two panchromatic reflective sheet polarizing filters. One filter is incorporated in the flash unit to produce a polarized light flash source. The flash source also incorporates light redirecting means such that a majority of light from the flash is directed toward the photographic scene. A second filter over the camera lens excludes that light originating from the flash source which is specularly reflected from the photographic scene.
Claims19
A flash camera with glare controlling ability for general photographic use, wherein said camera comprises at least two panchromatic reflective polarizing sheet filters, wherein a first polarizing filter is configured and arranged as a component within a flash source portion of said camera, to provide greater transmission of polarized light toward the photographic scene than that provided by direct transmission through said reflective sheet polarizing filter, and a second said polarizing filter is configured and arranged to cover a separate lens portion of said camera.
A method of reducing reflected glare from a photographic scene illuminated by a flash source portion of a flash camera comprising the steps of:
- providing at least two panchromatic reflective sheet polarizing filters,
- structuring said camera with a first polarizing filter as a component within said flash source portion of said camera, wherein said polarizing filter is configured and arranged to provide greater transmission of polarized light toward said photographic scene than is provided by direct transmission through said polarizing filter, and a second filter covering a lens portion of said camera, and
- executing a photograph with said camera during flash-illumination of said photographic scene.
Dependencies are inferred from the claim text.