| 摘要 |
<p>1523999 Vehicle multifunction switch control GENERAL MOTORS CORP 29 April 1977 [26 May 1976] 17968/77 Heading G1A A vehicle multifunction switch control system has a receiver, as 46, 48, of light from a source 44, with, interposed a manually controlled selector 14 with different colour filters, each with a spectrum corresponding only to a given switching function, the receiver including an analyzer which is responsive to the spectra, and controls switch devices to energize respective switching functions. Light from lamp 44 is guided by reflecting surface 54 and lens 56 of element 50 to optical fibre bundle 20, which passes through the steering column to selector 14 on signal lever 12. From mirrors, as 76, 84, coated with coloured filter material and selectable by rotatable knob 70 or push button 80, it is reflected back down fibres 20 through a row of filters 48 to an array of photo-detectors 46, one or more of which are energized according to the filter selected. A logic circuit decodes the signal from the array and controls the switch actuators. In an alternative arrangement, red, blue and green L.E.D.'s are used as sources, instead of using filters 48.</p> |
