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Sunglass lenses are made of either glass, plastic, or SR-91. Plastic lenses are typically made from acrylic, polycarbonate, CR-39 or polyurethane. Glass lenses have the best optical clarity and scratch resistance, but are heavier than plastic lenses. They can also shatter or break on impact.
Colin Albert Murdoch ONZM (6 February 1929 – 4 May 2008) was a New Zealand pharmacist and veterinarian who made a number of significant inventions, in particular the tranquilliser gun, the disposable hypodermic syringe and the child-proof medicine container. He had a total of 46 patents registered in his name.
The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.
A disposable (also called disposable product) is a product designed for a single use after which it is recycled or is disposed as solid waste. The term is also sometimes used for products that may last several months (e.g. disposable air filters) to distinguish from similar products that last indefinitely (e.g. washable air filters).
The first semiconductor image sensor was the charge-coupled device (CCD), invented by Willard S. Boyle and George E. Smith at Bell Labs in 1969, [8] based on MOS capacitor technology. [9] The NMOS active-pixel sensor was later invented by Tsutomu Nakamura 's team at Olympus in 1985, [ 10 ] [ 11 ] [ 12 ] which led to the development of the CMOS ...
The Cooper Companies, Inc., branded as CooperCompanies, is a global medical device company headquartered in San Ramon, California. [1] The company consists of two business units, CooperVision (CVI) which manufactures contact lenses, and CooperSurgical (CSI), which manufactures medical devices and fertility and genomic products for the women's health care market.
A burning apparatus consisting of two biconvex lens. A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.
In 1987, Acuvue contact lenses became the first disposable contact lenses available to consumers. The lenses lasted up to one week, reducing the cost of contact lenses. In the same year, the company launched One Touch, a blood glucose monitoring system. In 1989, Ralph S. Larsen was appointed chairman and CEO of the company. [60]
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