Stereoscopic eyewear with stray light management
AssigneeRealD Inc.
InventorsGary D. Sharp, David A. Coleman
Life of this patent
Estimating the term…
Abstract
Disclosed embodiments relate to eyewear configured to reduce stray light. An exemplary embodiment of the eyewear accounts for various design factors, including the cross sectional profile of the rim, the micro topography of the rim surface, the reflectivity, the theater or room geometry, proximity of the eye to the lens, lens size, and the screen gain. An exemplary eyewear includes lenses connected to the rims of a frame, and a path may be defined through a maximum height of the outer flange portion of a rim and a maximum height of the inner flange portion of the rim section. The path may be inclined at an angle relative to an angle α relative to a longitudinal axis defined by the lenses.
Claims20
Stereoscopic eyewear configured to reduce stray light, the eyewear comprising:
- a frame having rims;
- and
- lenses, comprising:
- a first lens operable to allow a first state of polarization (SOP) of light to pass through the first lens and operable to block a second SOP of light from passing through the first lens and a second lens operable to block the first SOP of light from passing through the second lens and operable to allow the second SOP of light to pass through the second lens,
- wherein the lenses are connected to the rims of the frame, and each rim comprises an outer portion and an inner portion;
- further wherein the rims are tipped inwardly so that the outer portion of the rim shadows the inner facet of the rim;
- further wherein the lenses each comprise at least one anti-reflective coating.
Stereoscopic eyewear configured to reduce stray light, the eyewear comprising:
- a frame having rims;
- and
- lenses connected to the rims of the frame, each lens comprising:
- a first lens operable to allow as first state of polarization (SOP) of light to pass through the first lens and operable to block a second SOP of light from passing through the first lens and a second lens operable to block the first SOP of light from passing through the second lens and operable to allow the second SOP of light to pass through the second lens;
- wherein each rim comprises an outer flange portion and an inner flange portion, the outer and inner flange portions defining a channel therebetween;
- wherein a portion of each lens is disposed in the channel of a respective rim;
- wherein the maximum height of the outer flange portion is greater than the maximum height of the inner flange portion and comprises a sloped profile from an outer edge to an inner edge of the outer flange;
- and
- wherein the lenses each comprise at least one anti-reflective coating.
A method of manufacturing stereoscopic eyewear configured to reduce stray light, the method comprising:
- forming a frame having rims;
- and
- disposing lenses in the rims of the frame, the lenses comprising:
- a first lens operable to allow a first state of polarization (SOP) of light to pass through the first lens and operable to block a second SOP of light from passing through the first lens and a second lens operable to block the first SOP of light from passing through the second lens and operable to allow the second SOP of light to pass through the second lens;
- wherein each rim comprises an outer portion and an inner portion, wherein the rim is tipped inwardly so that almost no specular reflection is within the capture angle of the screen and the outer portion of the rim shadows the facet of the rim;
- further wherein the lenses each comprise at least one anti-reflective coating.
Dependencies are inferred from the claim text.