Sony Corp. said Wednesday it has launched a high-resolution digital cinema projection system for midsize to small movie theaters and public halls, including those in emerging markets.

The new product utilizing "4K" technology, which displays images four times sharper than current high-definition resolutions, is being marketed for around ¥7 million in Japan. Sony's conventional model for large theaters runs around ¥10 million.

The new system is equipped with a high-pressure mercury lamp instead of the xenon lamp in the conventional model, enabling users to exchange the lamp easily and safely when necessary and reduce total running costs, Sony said.

It said it has sold 13,500 of its conventional 4K digital cinema projection systems around the world, mainly to large movie theaters, since 2006. Sony aims to reach smaller theaters and halls with the new product.