HYBRID INFRARED RAY FILTER FOR A DIGITAL CAMERA, CAPABLE OF MINIATURE PRODUCTION BY DECREASING THE CONCENTRATION OF THE ADDITIVE ADDED IN AN ABSORPTION TYPE INFRARED RAY FILTER

摘要

PURPOSE: A hybrid infrared ray filter for a digital camera is provided to prevent the degrading of image quality due to the infrared ray transmittance difference caused from the change of an incident angle of incident light.;CONSTITUTION: A hybrid infrared ray filter for a digital camera comprises an absorption filter plate(23), a reflective coating layer(21) and an antireflective coating layer(25). The absorption filter plate absorbs infrared ray. The reflective coating layer is formed in one side of the absorption filter plate and reflects infrared ray. The antireflective coating layer is formed on the other side of the absorption filter plate. Visible ray can the antireflective coating layer.;COPYRIGHT KIPO 2011