LAFOX, Ill.--(BUSINESS WIRE)--Richardson Electronics, Ltd. (NASDAQ: RELL), today reported sales and earnings for its third quarter ended February 28, 2015. The Company also announced that its Board of Directors declared a $0.06 per share quarterly cash dividend. Net sales for the third quarter of fiscal 2015 were $33.5 million, a 1.8% increase compared to net sales of $32.9 million in the prior year. Sales for the Company's EDG and Richardson Healthcare ("Healthcare") businesses increased 4.2%