Abstract:
A five-surface wide field-of view compound lens incudes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a first biplanar substrate, and a second biplanar substrate. The first lens is plano-concave; the second, the third lens, and the fourth lens are plano-convex; the fifth lens is a plano-gull-wing lens. The first biplanar substrate is between the second lens and the third lens. The second biplanar substrate is between the fourth lens and the fifth lens. The first lens has a first Abbe number. The second lens has a second Abbe number less than the first Abbe number. A camera module includes the five-surface wide FOV compound lens and a glass substrate having a planar surface adjoining a first planar surface of the first lens, the first lens being between the glass substrate and the second lens.
Abstract:
A four-piece all-aspheric adapter fisheye lens includes a negative meniscus lens, a biconcave lens, a positive meniscus lens, and a biconvex lens. The biconcave lens is between the negative meniscus lens and the positive meniscus lens; the positive meniscus lens is between the biconcave lens and the biconvex lens. The negative meniscus lens, the biconcave lens, the positive meniscus lens, and the biconvex lens are coaxial and arranged with an exit pupil to cooperatively generate an image with a camera lens that has greater field of view than the camera lens alone when the exit pupil is coplanar and coaxial with an entrance pupil of the camera lens. Each of the negative meniscus lens, the biconcave lens, the positive meniscus lens, and the biconvex lens has an aspheric object-side surface and an aspheric image-side surface.
Abstract:
An athermal lens system includes a converging lens element having a negative first thermo-optic coefficient, and a diverging lens element having a second thermo-optic coefficient more negative than the first thermo-optic coefficient, wherein the diverging lens element is coupled with the converging lens element to form a converging athermal doublet lens.
Abstract:
An ultra-small camera module with wide field of view includes (a) a wafer-level lens system for forming, on an image plane, an image of a wide field-of-view scene, wherein the wafer-level lens system includes (i) a distal planar surface positioned closest to the scene and no more than 2.5 millimeters away from the image plane in direction along optical axis of the wafer-level lens system, and (ii) a plurality of lens elements optically coupled in series along the optical axis, each of the lens elements having a curved surface, and (b) an image sensor mechanically coupled to the wafer-level lens system and including a rectangular array of photosensitive pixels, positioned at the image plane, for capturing the image, wherein cross section of the ultra-small camera module, orthogonal to the optical axis, is rectangular with side lengths no greater than 1.5 millimeters.
Abstract:
A compact three-surface wafer-level lens system for imaging a scene onto an image plane includes a one-sided wafer-level lens and a two-sided wafer-level lens disposed between the one-sided wafer-level lens and the image plane. The total track length of the wafer-level lens system is no more than 2.2 millimeters. The maximum transverse extent (in dimensions transverse to the optical axis) of the lens system and associated light propagating therethrough is no greater than 1.8 millimeters. The field of view angle of the lens system is at least 100 degrees.
Abstract:
A wide-angle camera and fabrication method thereof includes a sensor with a plurality of pixel sub-arrays and an array of optical elements on a first side of a substrate. Each of the optical elements is capable of forming an image from a field of view onto a different one of the pixel sub-arrays. The wide-angle camera also includes an array of achromatic doublet prisms on a second side of the substrate, where each of the achromatic doublet prisms is aligned to provide a viewing angle with a different one of the optical elements. The sensor captures a wide-angle field of view while having a compact format.
Abstract:
A wide-angle camera and fabrication method thereof includes a sensor with a plurality of pixel sub-arrays and an array of optical elements on a first side of a substrate. Each of the optical elements is capable of forming an image from a field of view onto a different one of the pixel sub-arrays. The wide-angle camera also includes an array of achromatic doublet prisms on a second side of the substrate, where each of the achromatic doublet prisms is aligned to provide a viewing angle with a different one of the optical elements. The sensor captures a wide-angle field of view while having a compact format.
Abstract:
A wafer-level lens system includes a first substrate, a first lens having a planar surface in contact with the first substrate and a concave aspheric surface, a second substrate, a second lens having a convex aspheric surface facing the first lens and a planar surface in contact with the second substrate, a third lens having a planar surface in contact with the second substrate and a concave aspheric surface, a third substrate, a fourth lens having a convex aspheric surface facing the third lens and a planar surface in contact with the third substrate, and a fifth lens having a planar surface in contact with the third substrate and a concave aspheric surface.
Abstract:
A six-aspheric-surface lens has six coaxially aligned lenses including, in order, a positive first lens, a negative second lens, a negative third lens, a negative fourth lens, a negative fifth lens, and a plano-gull-wing sixth lens. The six-aspheric-surface lens also includes a first biplanar substrate between the first lens and the second lens, a second biplanar substrate between the third lens and the fourth lens, and a third biplanar substrate between the fifth lens and the sixth lens. The first lens may have an Abbe number exceeding 48, the second lens and the third lens each may have an Abbe number less than 35. The first lens may have a focal length f1 and the second lens may have a focal length f2 such that −0.27
Abstract:
A compact three-surface wafer-level lens system for imaging a scene onto an image plane includes a one-sided wafer-level lens and a two-sided wafer-level lens disposed between the one-sided wafer-level lens and the image plane. The total track length of the wafer-level lens system is no more than 2.2 millimeters. The maximum transverse extent (in dimensions transverse to the optical axis) of the lens system and associated light propagating therethrough is no greater than 1.8 millimeters. The field of view angle of the lens system is at least 100 degrees.