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2. Cardinal point (optics) - Wikipedia

   en.wikipedia.org/wiki/Cardinal_point_(optics)

   The optical center of a spherical lens is a point such that if a ray passes through it, the ray's path after leaving the lens will be parallel to its path before it entered. In the figure at right, [ 8 ] the points A and B are where parallel lines of radii of curvature R 1 and R 2 meet the lens surfaces.

3. Epipolar geometry - Wikipedia

   en.wikipedia.org/wiki/Epipolar_geometry

   Since the optical centers of the cameras lenses are distinct, each center projects onto a distinct point into the other camera's image plane. These two image points, denoted by e L and e R, are called epipoles or epipolar points. Both epipoles e L and e R in their respective image planes and both optical centers O L and O R lie on a single 3D ...

4. List of lens designs - Wikipedia

   en.wikipedia.org/wiki/List_of_lens_designs

   This list covers optical lens designs grouped by tasks or overall type. The field of optical lens designing has many variables including the function the lens or group of lenses have to perform, the limits of optical glass because of the index of refraction and dispersion properties, and design constraints including realistic lens element center and edge thicknesses, minimum and maximum air ...

5. Camera lens - Wikipedia

   en.wikipedia.org/wiki/Camera_lens

   Different kinds of camera lenses, including wide angle, telephoto and speciality. A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses (compound lens) used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.

6. Photographic lens design - Wikipedia

   en.wikipedia.org/wiki/Photographic_lens_design

   Prime lens - a photographic lens whose focal length is fixed, as opposed to a zoom lens, or that is the primary lens in a combination lens system. Zoom lenses - variable focal length lenses. Zoom lenses cover a range of focal lengths by utilising movable elements within the barrel of the lens assembly.

7. Choctaw Cultural Center in Oklahoma proves vital stop for ...

   www.aol.com/choctaw-cultural-center-oklahoma...

   Opened in 2021 after more than a decade of research and work, the Choctaw Cultural Center spans more than 100,000 square feet and houses two exhibit halls, an art gallery, auditorium, children’s ...