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Celestron was the first large scale commercial manufacturer of the Schmidt-Cassegrain telescope, introducing its "C8" 8" diameter 2032 mm focal length, ƒ10 telescope in 1970. [7] The primary innovation Celestron/Tom Johnson devised was a method to produce Schmidt corrector plates using a vacuum to pull the glass blanks into a pre-shaped curve ...
In June 1998, Tasco purchased Celestron, another telescope manufacturer which focused on performance optical equipment and the more serious observer. Celestron was second only to Meade Instruments Corporation in sales of telescopes. [9] Early in 2001, Tasco began searching for a buyer as profits sank.
Thomas Jasper Johnson or Tom Johnson (January 11, 1923 – March 13, 2012) [1] was an American electronics engineer and astronomer who founded Celestron, a company which manufacturers telescopes, which revolutionized the amateur astronomy industry and hobby.
Synta Technology Corporation was founded in Taoyuan, Taiwan around 1980 by mechanical and optical designer Dazhong Shen, (a/k/a David Shen). In 1992 Synta, along with Canadian investors, established the Suzhou Synta Optical Technology Co., Ltd in Suzhou (Jiangsu), China (outside Shanghai) as a manufacturing facility producing telescopes for Celestron and Tasco.
You’ll Need to Ship by These Dates if You Want Packages To Arrive by Christmas, According to UPS, USPS and FedEx. Morgan McMurrin. December 12, 2024 at 7:10 PM. Getty Images.
Celestron did not indicate this obsolescence date on the product or in the manual. As of April 7, 2019, the Sky Scout can no longer decode the GPS supplied date and time correctly, because of the GPS week number rollover in 2019. [2] It is possible to enter the latitude/longitude and time/date manually to continuously use the device, pending ...
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Meade has a long history of litigation with other companies over infringement of their patents, particularly with its once bitter rival Celestron. In August 2008, Meade modified their line of Schmidt-Cassegrain telescopes with changes to the optical surfaces in design they call "Advanced Coma-Free optics" (ACF Optics).