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In theory, the process can continue indefinitely: Compound lenses used in cameras typically have six or more simple lenses (e.g. double-Gauss lens); several of those lenses can be made with different types of glass, with slightly altered curvatures, in order to bring more colors into focus.
Orthokeratology lens. Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology, Cornea Corrective Contacts, Eccentricity Zero Molding, and Gentle Vision Shaping System (GVSS), is the use of gas-permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia ...
In 1981, Johnson & Johnson acquired Frontier Contact Lenses and renamed the company Vistakon. [1] The production process at the time of sale was very manual—every employee on the production line handled the lenses, whether they were lathing, polishing, or inspecting. Vistakon decided to invest in a new production process in order to scale.
Reversed achromatic lens. Charles Chevalier's Paris optical firm produced lenses for both Niépce and Daguerre for their experiments in photography.In 1829 [3] [citation needed], Chevalier created an achromatic lens (a two-element lens made from crown glass and flint glass) to cut down on chromatic aberration for Daguerre's experiments.
Additional post-war lenses include: Helomar; Dynarex, Dynaret, Color-Dynarex, Super-Dynarex, Super-Dynaret, telephoto lenses; Septon, comparable to the Ultron; In addition, Voigtländer offered the Zoomar with its Bessamatic starting from 1959. The Zoomar was designed by Frank G.
Anaglyph 3D glasses have a different colored filter for each eye, typically red and blue or red and green. A polarized 3D system on the other hand uses polarized filters. Polarized 3D glasses allow for color 3D, while the red-blue lenses produce an image with distorted coloration. An active shutter 3D system uses electronic shutters.
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