Invention Grant
- Patent Title: Touch button light ring system
- Patent Title (中): 触摸按钮灯环系统
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Application No.: US376079Application Date: 1989-07-05
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Publication No.: US5039832APublication Date: 1991-08-13
- Inventor: Richard R. Polacek , Steven B. Davis , Jean Youla
- Applicant: Richard R. Polacek , Steven B. Davis , Jean Youla
- Applicant Address: CT Farmington
- Assignee: Otis Elevator Company
- Current Assignee: Otis Elevator Company
- Current Assignee Address: CT Farmington
- Main IPC: G09F13/20
- IPC: G09F13/20 ; B66B3/00 ; G09F13/22 ; H01H9/16 ; H01H13/02 ; H03K17/18 ; H03K17/96
Abstract:
The present invention is directed to an illuminated touch button system having a light ring element, a button element located within and surrounded by the light ring element and an array of light emitting diodes. The light ring element comprises a series of individual chambers situated substantially over each light emitting diode in the array. In the preferred embodiment, each chamber includes a set of three light-receiving triangulated surfaces, these surfaces having a series of edges which act to diffuse the illumination of the light emitting diodes. The chambers, in combination with the edges, produce a relatively even, bright light distribution in the portion of the light ring element surrounding the button element.
Public/Granted literature
- US5547509A Method and apparatus for continuous support of a paper web through a coating installation Public/Granted day:1996-08-20
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