"We have a prototype," said Dr. Ron Blum, an optometrist who is president and chief executive of e-Vision, the company that is developing the variable focus glasses.
The variable focus glasses bend light not by the shape of their lenses, as traditional glasses do, but with the help of software, microchips and a thin layer of a material whose refractive index changes when a voltage is applied.
She has just been fitted with a pair of FocusSpecs adjustable focus glasses and is threading her own needle for the first time in years.
There are a range of possibilities: Help them provide adjustable focus glasses; stock a local reseller; organize eye screening out in the field; help set up regional network of resellers and be identified as a sponsor.
SAXS measurements were performed with a SAXSess camera (Anton Paar, Austria) attached to a laboratory X-ray generator (PW3830, PANanalytical) operated with a fine-focus glass X-ray tube at 40 kV and 50 mA (Cu Kα, λ = 0.1542 nm).
There are distinct advantages to variable-focus glasses like these.
"Ad," in this case, is short for "adjustable"; these are variable-focus glasses.
She and 5 companions came late for dance equipped with field glasses and as they moved about, focussed glasses over partners' shoulders on staring fringe.
Lalique's decision around 1910 to focus on glass provided the foundation for his luxury empire.
Powder X-ray micro-diffraction data were collected from the cross-section with a PANalytical X'Pert PRO diffractometer equipped with a conventional X-ray tube (CoKα radiation with a wavelength of 1.7890 Å, 40 kV, 30 mA, point focus), a glass collimating mono-capillary with an exit diameter of 0.1 mm and a multichannel position sensitive detector (X'Celerator) with an anti-scatter shield.
