Mumbai, June 30 -- "This patent also represents the company's 82nd patent globally, reinforcing Zen's leadership in defence innovation through indigenous research and development," the company stated.

This patent, granted to ZEN Technologies, is for a long-pass optical filter. This filter allows visible and infrared laser beams to work together smoothly in one device. This makes combat training simulators more accurate, realistic, and responsive.

Old systems used separate beams, which often had problems with alignment and didn't last long. Zen's new filter is small and strong. It works better in tough conditions and needs less fixing.

The company stated that this patent would open up significant export opportunities for Zen. With sever...