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After turning 40, founder Rick Hopper started using readers and began habitually losing, scratching and dropping his glasses. [1] In 2010, Hopper made prototypes using paperclips and magnets, solving the problem he had with trying to keep his glasses safe and secure. [1] It did not take long for consumer interest to grow.
Anton Chekhov with pince-nez, 1903. Pince-nez (/ ˈ p ɑː n s n eɪ / or / ˈ p ɪ n s n eɪ /, plural form same as singular; [1] French pronunciation:) is a style of glasses, popular in the late 19th and early 20th centuries, that are supported without earpieces, by pinching the bridge of the nose.
Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera , each perforation allows only a very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the ...
This image is a derivative work of the following images: Map symbol-pin.gif licensed with PD-self . 2006-08-22T19:07:19Z Qyd 248x342 (10707 Bytes) {{Information |Description=tourism map location symbol - interim gif solution for transparent overlay (untill IE fixes transparent svg display) |Source=[[:Image:Map symbol location 02.png]] |Date=Aug 2006 |Author=seamus mcgil
A pin is a device, typically pointed, used for fastening objects or fabrics together. Pins can have the following sorts of body: Pins can have the following sorts of body: a shaft of a rigid inflexible material meant to be inserted in a slot, groove, or hole (as with pivots, hinges , and jigs)
Higher-quality optical-grade glass materials exist (e.g. Borosilicate crown glasses such as BK7 ( n d = 1.51680 , V d = 64.17 , D = 2.51 g/cm³ ), which is commonly used in telescopes and binoculars, and fluorite crown glasses such as the best optical quality low dispersion glass currently in production, N-FK58 made by the German company Schott ...
A belaying pin is a solid metal or wooden device used on traditionally rigged sailing vessels to secure lines of running rigging. Largely replaced on most modern vessels by cleats, they are still used, particularly on square rigged ships. [1] A belaying pin is composed of a round handle and cylindrical shaft.