Irvine Sensors Corp.: The Costa Mesa developer...

Irvine Sensors Corp.: The Costa Mesa developer of infrared devices and computer electronics packages said it lost $319,000, or 4 cents a share, on sales of $4.2 million for its fiscal year ended Sept. 29. A year ago, the company lost $788,100, or 9 cents a share, on sales of $3.5 million.