Backed by brisk earnings in 2006, a senior executive at Pentax Corp. said Friday the firm was confident it could go it alone without Hoya Corp.

"We are confident that we can compete on our own. We wonder why we should go under the umbrella" of Hoya, Pentax Managing Director Shinichiro Mitsuhashi told a news conference to announce the camera maker's financial results for the business year to March 31.

Pentax said its net profit more than quadrupled over the previous year to 3.57 billion yen thanks to strong demand for its digital single-lens reflex cameras.