Optical assembly for a wide field of view point action camera with low track length to focal length ratio
AssigneeHyperion Development, LLC
InventorsRussell Hudyma, Michael Thomas
Life of this patent
Estimating the term…
Abstract
An optical assembly for a point action camera with a wide field of view has multiple lens elements configured to provide a field of view in excess of 150 degrees. One of more of the lens elements has an aspheric surface. The optical assembly exhibits a low ratio of total track length to effective focal length that is less than 8.
Claims70
An optical assembly for a point action camera having a wide field of view, comprising:
- multiple lens elements, including an aspheric surface, configured to provide a field of view in excess of 150 degrees that comprises a ratio of “total track length” to “effective focal length” that is less than 8, wherein total track length (hereinafter “TTL”) is defined as total distance from a first surface of a first lens of the optical assembly to an image plane, and effective focal length (hereinafter “EFL”) is defined as optical focal length of the optical assembly;
- and
- wherein the optical assembly comprises from object end to image end a first optical group and a second optical group;
- and
- wherein the first optical group is configured to collect light at said wide field of view and said second optical group is configured to compensate for astigmatism error;
- and
- wherein said second optical group is further configured to compensate for distortion error;
- and
- wherein said second optical group comprises multiple lens elements including an ultimate or penultimate lens element that is configured with an aspheric departure to compensate for said astigmatism error;
- and
- wherein said optical assembly comprises seven lens elements.
An optical assembly for a point action camera having a wide field of view, comprising:
- multiple lens elements, including an aspheric surface, configured to provide a field of view in excess of 150 degrees that comprises a ratio of total track length to effective focal length that is less than 8, wherein total track length (hereinafter “TTL”) is defined as total distance from a first surface of a first lens of the optical assembly to an image plane, and effective focal length thereinafter “EFL”) is defined as optical focal length of the optical assembly;
- and
- wherein the optical assembly comprises from object end to image end a first optical group and a second optical group;
- and
- wherein the first optical group is configured to collect light at said wide field of view and said second optical group is configured to compensate for astigmatism error;
- and
- wherein said second optical group is further configured to compensate for distortion error;
- and
- wherein said second optical group comprises multiple lens elements including an ultimate or penultimate lens element that is configured with an aspheric departure to compensate for said astigmatism error, and
- wherein said second optical group comprises four lens elements.
An optical assembly for a point action camera having a wide field of view, comprising:
- multiple lens elements, including an aspheric surface, configured to provide a field of view in excess of 150 degrees that comprises a ratio of total track length to effective focal length that is less than 8, wherein total track length (hereinafter “TTL”) is defined as total distance from a first surface of a first lens of the optical assembly to an image plane, and effective focal length thereinafter “EFL”) is defined as optical focal length of the optical assembly;
- and
- wherein the optical assembly comprises from object end to image end a first optical group and a second optical group;
- and
- wherein the first optical group is configured to collect light at said wide field of view and said second optical group is configured to compensate for astigmatism error;
- and
- wherein said second optical group is further configured to compensate for distortion error;
- and
- wherein said second optical group comprises multiple lens elements including an ultimate or penultimate lens element that is configured with an aspheric departure to compensate for said astigmatism error, and
- wherein said second optical group comprises from object side to image side, a first singlet, a doublet and a second singlet.
An optical assembly for a point action camera having a wide field of view, comprising:
- multiple lens elements, including an aspheric surface, configured to provide a field of view in excess of 150 degrees that comprises a ratio of total track length to effective focal length that is less than 8, wherein total track length (hereinafter “TTL”) is defined as total distance from a first surface of a first lens of the optical assembly to an image plane, and effective focal length thereinafter “EFL”) is defined as optical focal length of the optical assembly;
- and
- wherein the optical assembly comprises from object end to image end a first optical group and a second optical group;
- and
- wherein the first optical group is configured to collect light at said wide field of view and said second optical group is configured to compensate for astigmatism error;
- and
- wherein said second optical group is further configured to compensate for distortion error;
- and
- wherein the optical assembly further comprises a third optical group disposed between the first and second optical groups.
An optical assembly for a point action camera having a wide field of view, comprising multiple lens elements, including an aspheric surface, configured to provide a field of view in excess of 150 degrees that comprises a ratio of total track length to effective focal length that is less than 8, wherein total track length (hereinafter “TTL”) is defined as total distance from a first surface of a first lens of the optical assembly to an image plane, and effective focal length (hereinafter “EFL”) is defined as optical focal length of the optical assembly, wherein the optical assembly comprises a single aspheric lens element, which is the only aspheric lens element within the optical assembly.
An optical assembly for a point action camera having a wide field of view, comprising multiple lens elements, including an aspheric surface, configured to provide a field of view in excess of 150 degrees that comprises a ratio of total track length to effective focal length that is less than 8, wherein total track length (hereinafter “TTL”) is defined as total distance from a first surface of a first lens of the optical assembly to an image plane, and effective focal length (hereinafter “EFL”) is defined as optical focal length of the optical assembly, wherein the optical assembly comprises a single aspheric lens surface, which is the only aspheric lens surface within the optical assembly.
An optical assembly for a point action camera having a wide field of view, comprising multiple lens elements, including an aspheric surface, configured to provide a field of view in excess of 150 degrees that comprises a ratio of total track length to effective focal length that is less than 8, wherein total track length (hereinafter “TTL”) is defined as total distance from a first surface of a first lens of the optical assembly to an image plane, and effective focal length (hereinafter “EFL”) is defined as optical focal length of the optical assembly, wherein the optical assembly comprises only one aspheric lens element.
An optical assembly for a point action camera having a wide field of view, comprising multiple lens elements, including an aspheric surface, configured to provide a field of view in excess of 150 degrees that comprises a ratio of total track length to effective focal length that is less than 8, wherein total track length (hereinafter “TTL”) is defined as total distance from a first surface of a first lens of the optical assembly to an image plane, and effective focal length (hereinafter “EFL”) is defined as optical focal length of the optical assembly, wherein the optical assembly comprises only one aspheric lens surface.
Dependencies are inferred from the claim text.