| 摘要 |
PURPOSE: A window lens for a CCTV camera is provided to completely block a light infiltration path by upper/lower rings combined in a lens unit, thereby preventing diffusely reflected LED light from being infiltrated into a camera lens. CONSTITUTION: A window lens for a CCTV camera includes a lens unit(10), an upper ring(14) and a lower ring(18). The lens unit includes an inside part(10a) and an outside part(10b) which are circular. The outside part is formed in an external circumference of the inside part. Sum of height of a projection of the upper ring and height of a projection of the lower ring is larger than thickness of the lens unit.
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