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    • 3. 发明授权
    • Photoelectric sensor with a circular polarizing lens attached to its
housing
    • 具有圆形偏振透镜的光电传感器连接到其外壳
    • US5326968A
    • 1994-07-05
    • US30947
    • 1993-03-12
    • Donald D. JohnsonSurrinder S. PuriJim Yee
    • Donald D. JohnsonSurrinder S. PuriJim Yee
    • G01D5/34G02B27/28H01L31/167G02F1/01
    • H01L31/167G01D5/344G02B27/28
    • A photoelectric sensor is adapted for use in specific applications which require the additional attachment of a circular polarizer. A piece of circular polarizer material is general disc-shaped with two planar surfaces and a peripheral circular surface. The outer periphery of the disc-shaped circular polarizer is encapsulated within a generally annular molded rim. The molded rim is provided with a protrusion that is generally circular and extends from one of the generally flat surfaces of the rim material. The protrusion facilitates the attachment of the rim to the operative face of a photoelectric sensor through the process of ultrasonic welding. Advantages achieved by this device include the facilitated attachment of the circular polarizer to a photoelectric sensor, the protection of the outer peripheral edges of the laminations of the circular polarizer and the avoidance of distortions of the circular polarizer during the manufacturing process.
    • 光电传感器适用于需要额外附加圆偏振器的具体应用。 一片圆偏振片材料是一般盘形的,具有两个平面和圆周表面。 盘形圆形偏光镜的外周被封装在大致环形的模制轮缘内。 模制的边缘设置有大体为圆形并从边缘材料的大致平坦表面中的一个延伸的突起。 突起有助于通过超声波焊接的过程将轮缘附接到光电传感器的操作面。 通过该装置实现的优点包括将圆偏振器方便地附着到光电传感器,保护圆偏振片的叠片的外围边缘以及避免在制造过程中圆偏振器的变形。