Why has the worst optical surface, full of distorted areas, become the largest money maker ever, in a period of 59 years ?
In the old days optical lens manufacturers used compete with the best and cleanest optical surfaces. The best lenses are still on cameras of all sorts, because any distortion would be visibly disturbing on resulting pictures.
However in the practical world of eyeglass sales, the lens with at least 30 to 40% of distorted areas over its surface has won the glory of having become the best selling multifocal lens world wide.
People that would only use a camera with only the best lenses will look through the viewfinder with their progressive lenses that are full of distorted areas.
I learned in the late 1950s how to sell those new lenses, mostly to women in their mid to late forties, because the age would not show that they wore multifocal lenses.
They always sold for more money than the optically perfect fused bifocals or multifocals, maybe the public has been totally brainwashed over the last 50 years, that optical perfection is not wanted anymore in eyeglasses.
What do you say ?
Why has the worst optical surface ever become the biggest money maker ?
In the old days optical lens manufacturers used compete with the best and cleanest optical surfaces. The best lenses are still on cameras of all sorts, because any distortion would be visibly disturbing on resulting pictures.
However in the practical world of eyeglass sales, the lens with at least 30 to 40% of distorted areas over its surface has won the glory of having become the best selling multifocal lens world wide.
People that would only use a camera with only the best lenses will look through the viewfinder with their progressive lenses that are full of distorted areas.
I learned in the late 1950s how to sell those new lenses, mostly to women in their mid to late forties, because the age would not show that they wore multifocal lenses.
They always sold for more money than the optically perfect fused bifocals or multifocals, maybe the public has been totally brainwashed over the last 50 years, that optical perfection is not wanted anymore in eyeglasses.
What do you say ?
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