In 1917, Congress enacted legislation requiring the use of non-glare headlights. By the 1919 effective date of the law, Smith was manufacturing the first non-glare headlight lenses for Model T Fords. The company would continue to supply Ford Motor Co. with headlights through World War II, when that company opened its own factory to manufacture them.
Shorty obtained
a patent
for the
Violet Ray Lens
on 4 Nov 1919, and later, Smith produced the
Lincoln Zephyr TwoLite Lens
.