Affordable low vision devices with plastic aspheric lenses
AFFORDABLE LOW VISION DEVICES WITH PLASTIC ASPHERIC LENSES. What is Low Vision? Low Vision indicates a vision of less than…
AFFORDABLE LOW VISION DEVICES WITH PLASTIC ASPHERIC LENSES. What is Low Vision? Low Vision indicates a vision of less than…
What is an ASPHERIC: Aspheric surface implies a non-spherical (viz: conic) surface with rotational symmetry about its optical axis. The…
The benefits of aspheric lenses are numerous: They allow for a reduction in spherical aberrations and are ideal for focusing…
With the understanding of aspheric lens manufacturing provided in this article, designers must have the tools to optimize their aspheres; the next…
Historically, ultraviolet (UV) light has been used to disinfect water, surfaces and the air. You may wonder if this technology…
Optica, the manufacturer of Opto Scan Thermal Scanners, is at pains to remind the public that thermal scanners are not medical…
Light in the Ultraviolet-C (UV-C) spectrum has proven effective in killing virtually all known microorganisms, making it the ideal solution…
Independence Day weekend is usually all about celebrating life, liberty and the pursuit of happiness. But as cases surge across…
1. Combat heat and humidity Situations involving strenuous activity, temperature, and humidity usually necessitate anti-fog safety eyewear. High-humidity environments create more…