Traffic light lens
AssigneeAwa Limited
InventorBarrie J. Holst
Life of this patent
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Abstract
A lens (16) suitable for use with traffic lights has a body portion (20) that is a segment of a sphere and a mounting or sealing ring (21) at the periphery of the body portion. An array of lenticular elements (22) is formed on the concave inner surface of the body portion (20) and is arranged in rows extending substantially horizontally across the concave inner surface of the body portion of the lens. Between each adjacent lenticular element there is a recess (25) to modify the reflection pattern of the lens.
Claims10
A lens suitable for use with traffic lights comprising a body portion that is a segment of a sphere and an array of lenticular elements formed on a concave inner surface of the body portion arranged in rows extending substantially horizontally across the concave inner surface of the body portion of the lens, characterized in that there is provided between each adjacent lenticular element a relatively smaller recess in the body portion wherein each relatively smaller recess is of semi-spherical form.
A lens suitable for use with traffic lights comprising a body portion that is a segment of a sphere and an array of lenticular elements formed on a concave inner surface of the body portion arranged in rows extending substantially horizontally across the concave inner surface of the body portion of the lens, characterized in that there is provided between each adjacent lenticular element a relatively smaller recess in the body portion wherein a planar portion is formed between an upper extremity of each lenticular element and an adjacent recess, said planar portion being parallel to an outer surface portion of said body portion.
Dependencies are inferred from the claim text.