3 ms·
You're cherry-picking here. Analog gauges were lit with both filtered and unfiltered incandescent bulbs. There was no standard.
by 1970-01-01 1y ago
You're cherry-picking here. Analog gauges were lit with both filtered and unfiltered incandescent bulbs. There was no standard.
- ErroneousBosh 1y agoThere was a mix of technologies. Up to about the early 80s, instruments were lit by an "unfiltered" incandescent lamp at the back of the instrument housing, that reflected off a band of white paint around the top of the housing and screened by the bezel, like old Smiths gauges. After about that point they moved over to edge-lit screen-printed perspex backings, and continued that way until the current trend for glarey and unpleasant LCDs everywhere.
- paradox460 1y agoMy old Ford Windstar used electroluminescent panels behind the dash cluster. Gave everything a beautiful soft green hue