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Modern highly corrected zoom lenses with fifteen, twenty or more elements would not be possible without multicoating. [218] [219] The transmission efficiency of a modern multicoated lens surface is about 99.7% or better. [220] Then and today, Pentax's SMC coatings were regarded as the most efficient at reducing flare and maintaining contrast. [221]
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 ...
Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations. Parameters include surface profile types (spherical, aspheric, holographic, diffractive, etc.), as well as radius of curvature, distance to the next surface, material type and optionally tilt and decenter.
The design of photographic lenses for use in still or cine cameras is intended to produce a lens that yields the most acceptable rendition of the subject being photographed within a range of constraints that include cost, weight and materials. For many other optical devices such as telescopes, microscopes and theodolites where the visual image ...
Lenticular printing is a technology in which lenticular lenses (a technology also used for 3D displays) are used to produce printed images with an illusion of depth, or the ability to change or move as they are viewed from different angles. Examples include flip and animation effects such as winking eyes, and modern advertising graphics whose ...
A zoom lens derivative of the Sonnar, the Vario-Sonnar also exists, in which a number of lens groups are replaced with floating pairs of lens groups. The Vario-Sonnar is a Carl Zeiss photographic lens design named in relation to the Zeiss Sonnar. This lens type has a variable focal length which can replace a series of lenses for a certain ...
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