Teledyne Technologies Inc. has invested in Ocean Aero Inc., a manufacturer of unmanned marine vehicles for scientific and energy-sector customers.

Terms of the deal between Teledyne in Thousand Oaks and Ocean Aero in San Diego were not disclosed.

The investment by the aerospace and defense manufacturer broadens the company’s marine and autonomous underwater vehicle portfolio. Teledyne subsidiaries already make the Gavia, Slocum Glider and the MinoROVER marine vehicles.

Ocean Aero is developing a wind- and solar-powered autonomous vehicle, the Submaran, which can be used either on the ocean’s surface or underwater. The vehicle can conduct water column analysis, stealth and hazardous weather avoidance.

“Ocean Aero’s planned unmanned underwater/surface vehicles complement Teledyne’s battery-powered Gavia AUVs and market-leading autonomous gliding vehicles using buoyancy-based propulsion,” Teledyne Chief Executive Robert Mehrabian said in a prepared statement.

Shares closed down $1.62, or less than 2 percent, to $96.35 on the New York Stock Exchange.