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For example, the first working laser was a ruby laser, made from ruby (chromium-doped corundum). The population inversion is maintained in the dopant. These materials are pumped optically using a shorter wavelength than the lasing wavelength, often from a flash tube or another laser.
In addition to his patent for the first working laser, Maiman authored a number of patents on masers, lasers, laser displays, optical scanning, and modulation. [ 34 ] Prior to his death, Maiman held an adjunct professor position in the School of Engineering Science at Simon Fraser University , where he worked on the development of curricula in ...
For example, the first operating laser, a ruby laser, was optically pumped; the helium–neon laser is pumped by gas discharge. The delay—and the subsequent spread of lasers into many areas of technology—meant that the patents were much more valuable than if Gould had won initially.
In 1969, Starkweather invented the laser printer at the Xerox Webster Research Center. He collaborated on the first fully functional laser-printing system at Xerox PARC in 1971. [2] [3] [4] At Apple Computer in the 1990s, Starkweather invented color management technology [5] and led the development of Colorsync 1.0.
The laser printer was invented at Xerox PARC in the 1970s. Laser printers were introduced for the office and then home markets in subsequent years by IBM, Canon, Xerox, Apple, Hewlett-Packard and many others. Over the decades, quality and speed have increased as prices have decreased, and the once cutting-edge printing devices are now ubiquitous.
Most LaserDisc players required the user to manually turn the disc over to play the other side. A number of players (all diode laser based) were made that were capable of playing both sides of the disc automatically, using a mechanism to physically flip a single laser pickup. Pioneer produced some multi-disc models which held more than 50 ...
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HP introduced their first desktop model with a Ricoh engine for $12,800 in 1983. Sales of the non-networked product were unsurprisingly poor. [4] In 1983, Canon introduced the LBP-CX, a desktop laser printer engine using a laser diode and featuring an output resolution of 300 dpi. [5]