simple lens


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simple lens

[′sim·pəl ′lenz]
(optics)
A lens consisting of a single element. Also known as single lens.
References in periodicals archive ?
According to J&J, the benefits of the range for practitioners include simple lens selection, whether patients are myopic, hypermetropic or astigmatic, as well as a 93% first-fit success.
In addition, a unique compact design, simple lens shift and front-facing exhaust allow users to conceal the projector in a bookcase on the back wall and enjoy images up to 300 inches -- five, ten or even over thirty times the size of a 50-inch flat screen.
It has the simple lens of the human eye, allowing the device to be small, and the zoom capability of the SLR camera without the bulk and weight of a complex lens.
The key is that both the simple lens and photo detectors are on flexible substrates, and a hydraulic system can change the shape of the substrates appropriately, enabling a variable zoom.
In 'Pasaules Optika' centers the Varilux Prelude lenses cost 22 EUR for a simple lens with a hard surface, and 50 EUR for a lens with the new multi-layer AR covering TRIO CLEAN.
The oldest surviving pinhole photographs were probably made by the English archeologist Flinders Petrie (1853-1942) during his excavations in Egypt in the 1880s, although Petrie's camera had a simple lens in front of the pinhole.
The simple lens changing lets me match my vision to racing conditions with ease.
A simple lens exchange system uses a single release button to conveniently install up to five different lenses dependent on the required throw distance.
The simple lens exchange system using a single release button to conveniently install five different lenses dependent on required throw distance.
The Notevision C55 also features an individual cooling system for each of the three LCD panels, lowering fan noise and increasing the panels' lifespan, while the C55's new lens system allows for simple lens changeover.
The Notevision C50 features an individual cooling system for each of the three LCD panels, lowering fan noise and increasing the panels' lifespan, while the C50's new lens system allows for simple lens changeover to the optional Short Throw lens.
Eye care professionals tell us that a simple lens care system is not only convenient for consumers, but promotes healthy, comfortable contact lens wear," he said.