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Opera glasses, also known as theater binoculars or Galilean binoculars, are compact, low-power optical magnification devices, usually used at performance events, whose name is derived from traditional use of binoculars at opera performances.
This is due in large part to advances in optometry which allow for better measurement of refractive error, so that glasses and contact lenses can be prescribed with different strengths in each eye. The monocle did, however, gain a following in the stylish lesbian circles of the early 20th century, when lesbians would wear a monocle for effect.
For example, maybe you stick with a basic-black frame to wear at the office, but then add a confetti-colored top for a night out. Or a snowman-themed one for a holiday party. You could even have a ...
Smartglasses or smart glasses are eye or head-worn wearable computers. Many smartglasses include displays that add information alongside or to what the wearer sees. Many smartglasses include displays that add information alongside or to what the wearer sees.
Plus, water droplets on leaves can work as magnifying glasses, causing the leaves to burn. The worst season to water outdoor plants is during freezing winter weather when temperatures can be below ...
Magnifying glasses typically have low magnifying power: 2×–6×, with the lower-power types being much more common. At higher magnifications, the image quality of a simple magnifying glass becomes poor due to optical aberrations, particularly spherical aberration. When more magnification or a better image is required, other types of hand ...
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