Ads
related to: varilux x fit vs designThe quality of the glasses was outstanding. - Bizrate
- 50% Off Sunglasses
Huge Collection of Sunglasses
Shop Our Latest Styles And Save Big
- 50% Off Eyeglasses
Huge Collection of Eyeglasses
Shop Our Latest Styles And Save Big
- 50% Off Sunglasses
goggles4u.com has been visited by 10K+ users in the past month
Search results
Results from the WOW.Com Content Network
As new technologies and manufacturing processes were being developed, the research efforts concerning Varilux continued. In 1988, the result came with Varilux Multi-Design, or VMD. [11] The Multi-Design concept was a first stage of personalization of the progressive lens, a specific optimum design for each age class of the presbyopic wearer. [12]
The Carl Zeiss AG & Varilux lenses were the first PAL of modern design. Bernard Maitenaz, patented Varilux in 1953, and the product was introduced in 1959 by Société des Lunetiers (now Essilor). The first Varilux lenses' surface structure was however still close to a bifocal lens, with an upper, aberration-free half of the surface for far ...
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.
For software, the form means the design, logic flow, and algorithms. Fit The fit of a commodity is defined by its ability to physically interface or connect with or become an integral part of another commodity. For software, the fit is defined by its ability to interface or connect with a defense article.
Design for excellence (DfX or DFX) is a term and abbreviation used interchangeably in the existing literature, [1] [2] [3] where the X in design for X is a variable which can have one of many possible values. [4]
An atoric lens design refers to a lens with a more complex aspheric lens design. An atoric lens design can address errors over more corners of the lens, not just the horizontal and vertical axis. A toric lens is designed to compensate for the astigmatism of a patient's eye. Even though this lens is technically "aspheric", the terms "aspheric ...
Engineering fits are generally used as part of geometric dimensioning and tolerancing when a part or assembly is designed. In engineering terms, the "fit" is the clearance between two mating parts, and the size of this clearance determines whether the parts can, at one end of the spectrum, move or rotate independently from each other or, at the other end, are temporarily or permanently joined.
Design for X — a product design method/system. Subcategories. This category has the following 2 subcategories, out of 2 total. C. Corrosion prevention (1 C, 60 P) U.