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In November 2013, Ring was founded as Doorbot by Jamie Siminoff. Doorbot was crowdfunded via Christie Street, and raised US$ 364,000, more than the $250,000 requested. [1] [4] [5] Siminoff's team envisioned the product's concept as an "alarm system literally turned inside out" in comparison to other security systems, describing it as a "pre-crime" system. [6]
The smart doorbell lets the home owner use a smartphone app to watch and talk with the visitor by using the doorbell's built-in high-definition infrared camera and microphone. They can be either battery operated or wired. [1] Some smart doorbells also allow the user to open the door remotely using a smart lock. [2]
Ring camera Contains a miniature camera. [16] [7] [78] [8] Checkbook reader Uses ultra-violet light to read previously written material by picking up the indentations of pen marks on paper. [77] Credit card lock pick Has an electronic ability to open locks. The Sharper Image brand. [77] Zorin's walking stick
Ring (company), a home security company, maker of the Ring video doorbell; Ring (diacritic), that may appear above or below letters; Ring, a bidders' pool for collusion in an auction; Ring, a local club of the International Brotherhood of Magicians; Ring, a perception of sound caused by tinnitus; Ring languages, spoken in Cameroon
Popular systems include the Ring doorbell, Vivint Home Security doorbell, and the Nest Hello. These consist of a single unit which is located in place of the traditional push-button, and in addition to a physical button, contains a high-definition camera, passive infrared sensor and Wi-Fi capability.
The ring flash (usually LED [citation needed]) is mounted on the objective lens of an optical microscope. The main use of this tool is the photographing of microscopic organisms [citation needed]. A ring flash works on a microscope in much the same way as it does on a camera; it reduces reflections while bathing the subject in light.