INSPECTION WINDOW

摘要

An apparatus comprises an optical pane transparent to infrared radiation. The pane includes first and second sides, a periphery, and a retention region. A frame defines an opening that can accept the pane and includes a pane retention region. Additionally, a retainer is configured to secure the optical pane in the opening and includes a retaining surface mated to the pane support surface of the frame and configured to support the optical pane at the retention region. The pane, frame and retainer are configured to have mating features which can include a bead, a retaining ridge, a labyrinth configuration and protrusions, recesses, channels, or steps or a combination of these features.

主权项

1. An apparatus, comprising:
an optical pane that is transparent to infrared radiation and including
first and second sides,a periphery, andfirst and second retention regions positioned near the periphery of the optical pane; a flame that defines an opening that can accept the optical pane and that includes a pane retention region, the pane retention region including
a first pane support surface configured to support the optical pane at the first side of the first retention region anda second pane support surface configured to support the optical pane at the first side of the second retention region; and a retaining bezel that is configured to secure the optical pane in the opening and that includes
a first retaining surface mated to the first pane support surface of the frame and configured to support the optical pane at the second side of the first retention region, anda second retaining surface mated to the second pane support surface of the frame and configured to support the optical pane at the second side of the second retention region.