AOptix Technologies, developer of iris-recognition technology and the wireless communication systems it requires, has brought in $12.9 million in a fourth round of funding to build new products. The Campbell, Calif. company says it is in the middle of commercializing its first product, called the InSight 2 Meter Iris Recognition System. It has also benefited from recent defense contracts for its long-distance and high-bandwidth wireless systems.

Northgate Capital led the round, joined by Kleiner Perkins Caufield & Byers, Clearstone Venture Partners, DAG Ventures, W Capital Partners and Lehman Brothers. It has raised $60 million to date.