| 摘要 |
A window for an IR CCTV(Infra-Red Closed Circuit Television) is provided to form an IR window and a lens window integrally, form a groove rim in a boundary between the lens window and the IR window, insert an internal IR light shielding ring in the groove trim, and install an external IR light shield ring in front of the integrated window, thereby shielding IR light to be incident to the lens. A window for an IR CCTV(Infra-Red Closed Circuit Television) comprises an integrated window, a groove rim, an internal IR light shield ring, and an external IR light shield. The integrated window(110) is formed by integrating an IR window(110a) where an IR light is transmitted and an lens window(110b) to transmit the light reflected by an object. The groove rim(110c) is roundly formed by a predetermined depth in a boundary between the lens window and the IR window. The internal IR light shield ring(120) is inserted into the groove rim for absorbing the IR light. The external IR light shield ring(130) is used for shielding IR light.
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