rom these tests, with the view of help-ing toward the realization of an effective solution. First let us consider the requirements of the platesthemselves. It is a well-known fact that the minimumangle of discernment of the eye is one minute, that is, theeye can distinguish separate objects if they… … \ Fig. 3—Form of tail light reflector suggested. ever, as actual conditions are far from ideal, the mini-mum would not be advisable. It was the opinion of allobsen-ers present at the test that a fairly thin stroke—3 8 to 7, 16 in. wide—well spaced figures, V2 in. or more,was more legible than a…
Automobiles · Aeronautics
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