Brian Turner, chief financial officer of Coinstar, became the newest board member at Microvision, the company said today. Turner, 46, has been at Coinstar since 2003. The Bellevue company makes coin-counting machines. Before that Turner was CFO, treasurer and vice president of operations at RealNetworks. Microvision, which makes light-scanning technologies, has been reshuffling its board this year and bringing in new members from outside the company as part of an effort to turn around its finances and stem losses that have been as high as $7 million a quarter. Last month it closed a public stock offering, raising $23.5 million.