MINNEAPOLIS – CyberOptics Corp. today reported first-quarter net income of $846,000, up 243% year-over-year.

Consolidated sales were $13.4 million, up 8% compared to the same quarter of 2010, at the upper end of the previously reported guidance.

Order backlogs increased 48% sequentially to $10.6 million. The majority is scheduled to ship in the second and third quarters.

During the quarter, the maker of AOI and SPI systems for electronics assembly inspection benefited from a 19% year-over-year increase in sensors, including solar wafer alignment cameras. (CyberOptics sells sensors to a range of OEMs, including Juki, Viscom and DEK.) Sales of semiconductor products rose 60%.

“The shift in our sales mix toward newer sensor and system products had a highly favorable impact on our gross margin, which rose to 49% from 43% in last year’s first quarter,” said CEO Kathleen P. Iverson.

For the second quarter of 2011, the firm forecasts sales of $16 million to $17 million. Full-year sales are expected to be $60 million to $65 million.