A lens, wherein a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other, and a length of the first profile in the first direction is different from a length of the second profile in the second direction.

A cam for applying movement to a lens system. The cam may include a body configured to couple to the lens system. The body may have slots that are configured to receive lens followers. The slots may extend in directions that are convergent relative to each other.

A cam for applying movement to a lens system. The cam may include a body configured to couple to the lens system. The body may have slots that are configured to receive lens followers. The slots may extend in directions that are convergent relative to each other.

A full-frame anamorphic lens includes an anamorphic lens group arranged in sequence from the object side to the image side and an imaging lens group composed of a plurality of spherical lenses. The special cylindrical lens combination of the anamorphic lens may result in the full-frame 1.6 distortion while effectively controlling the breathing effect and optical distortion, and making the lens optical structure more compact and portable. Use the lenses added before and after the double Gauss structure to correct asymmetric aberrations such as astigmatism, spherical aberration, curvature of field, and chromatic aberration. At the same time, the special optical characteristics of the first five cylindrical lenses of the optical structure are integrated with the ten spherical lenses behind the optical structure. The optical correction of the anamorphic lens enables the anamorphic lens to cover the full frame while achieving a large aperture of 2.8 and achieving 4K quality.

A full-frame anamorphic lens includes an anamorphic lens group arranged in sequence from the object side to the image side and an imaging lens group composed of a plurality of spherical lenses. The special cylindrical lens combination of the anamorphic lens may result in the full-frame 1.6 distortion while effectively controlling the breathing effect and optical distortion, and making the lens optical structure more compact and portable. Use the lenses added before and after the double Gauss structure to correct asymmetric aberrations such as astigmatism, spherical aberration, curvature of field, and chromatic aberration. At the same time, the special optical characteristics of the first five cylindrical lenses of the optical structure are integrated with the ten spherical lenses behind the optical structure. The optical correction of the anamorphic lens enables the anamorphic lens to cover the full frame while achieving a large aperture of 2.8 and achieving 4K quality.

Devices, systems, and methods are provided for using a light detection and ranging (LIDAR) receiver optical design. A vehicle anamorphic LIDAR system may include a group of rotationally symmetric lenses, a first cylindrical lens, and a second cylindrical lens, wherein the first cylindrical lens is arranged between the group of rotationally symmetric lenses and the second cylindrical lens, wherein the vehicle anamorphic LIDAR system is associated with a first focal length in a first direction associated with a scene field of view, and a second focal length in a second direction perpendicular to the first direction and associated with an instantaneous field of view, and wherein the first focal length is different than the second focal length.

A lens system is configured to form an image on an imaging element having a quadrilateral shape disposed on an optical axis, and includes a first free-curved lens being asymmetrical with respect to the optical axis. A free-curved surface of the first free-curved lens has negative refractive power at an intersection point between a circle separated from the optical axis by a length having a predetermined ratio with respect to a minimum image height and a first surface passing through the optical axis and parallel to longer sides of the imaging element, and positive refractive power at an intersection point between a circle separated from the optical axis by a length having the predetermined ratio with respect to the minimum image height and a second surface passing through the optical axis and parallel to shorter sides of the imaging element. The predetermined ratio ranges from 40% to 80% inclusive.

Single fold optical systems that include a power prism and a lens stack including two or more refractive lens elements. The single fold optical system may provide a long mechanical back focus without increasing the Z-height of the optical system. Providing power on the prism may reduce the optical total length and reduce the X-length of the optical system. The single folded optical systems may provide reduced Z-axis height and reduced X-axis length when compared to conventional double folded optical systems with similar optical characteristics. In addition, the optical systems may include an anamorphic lens that is oriented to correct for astigmatism caused by surface errors of the reflective surface of the prism.

Accessory lens structures for cameras are described. For example, an image capture device may include a mother lens assembly including a first stack of lenses; an image sensor positioned at a first end of the mother lens assembly and configured to detect images based on light incident on the image sensor through the first stack of lenses; a conversion lens assembly including a second stack of lenses, wherein the second stack of lenses is afocal; and a conversion lens mounting apparatus configured to removably attach the conversion lens assembly to the image capture device in a position over a second end of the mother lens assembly, opposite from the image sensor, such that light incident on an outer lens of the second stack of lenses will be refracted through the second stack of lenses and the first stack of lenses to the image sensor.

Accessory lens structures for cameras are described. For example, an image capture device may include a mother lens assembly including a first stack of lenses; an image sensor positioned at a first end of the mother lens assembly and configured to detect images based on light incident on the image sensor through the first stack of lenses; a conversion lens assembly including a second stack of lenses, wherein the second stack of lenses is afocal; and a conversion lens mounting apparatus configured to removably attach the conversion lens assembly to the image capture device in a position over a second end of the mother lens assembly, opposite from the image sensor, such that light incident on an outer lens of the second stack of lenses will be refracted through the second stack of lenses and the first stack of lenses to the image sensor.