In a handheld incident light meter instrument, a custom LCD panel provides both a digital readout and a bar graph array which simulates an analog meter but uses no moving mechanical parts and which may be operated in a choice of modes: bar, floating zone or dedicated. Unusual accuracy and stability over...http://www.google.com/patents/US5486914?utm_source=gb-gplus-sharePatent US5486914 - LCD bargraph motion picture light meter
