Focal plane for CCD camera has cover for protecting focal plane fitted with optical quality transparent disc coinciding with CCD component

摘要

The focal plane (2) for a CCD camera has a cover (4) provided with an aperture (9) coinciding with the CCD component, fitted with a transparent disc (5) of optical quality. The focal plane and/or the cover has an opening providing pressure compensation between the space defined between the focal plane and the cover and the atmosphere, which can be fitted with a filter cartridge (17).