What Happens to Light with Optical Lenses?

Lenses are a miraculous invention.  Materials of specific refractive indexes coupled with thickness differentials and shapes using complex mathematics allow a lens wearer to be able to focus on an image that, without the lens, they could not clearly see.  Amazing!

This invention, in all its complexities, plays a very valuable part of everyday life for many of us, but all objects on earth have loss of light through reflection, absorption or scatter. Therefore, the same lens that allows the light to be focused properly on the wearer's retina also interferes with light.

Prescription lenses help us focus by altering the direction of light rays to focus light properly onto the retina of our eye, but lenses in eyeglasses actually reflect a certain percentage of light away from our eye.  This means eyeglass wearers are not receiving all available light, which can be a real disadvantage, especially in low-light situations.  And because eyeglass lenses come in a wide range of material, there are varying degrees of light loss.

Lens Type Light Transmission Chart Lens Type Light Transmission Chart

As we know, the amount of light lost due to a lens is directly related to its refractive index.  The higher the refractive index, the more light is reflected or lost and therefore does not make it to the wearer’s eye.  This can dramatically change the light transmission to the eye.

Taking the Lens Further

Taking the invention of the lens further, it is possible for us to take the light that is going through the lens and modify or enhance it to conditional specifications.  We are also able to enhance the light going through a lens so that the light reaching the user's eyes is increased, and we can even highlight certain light for hunting or fishing.  This can be done with dyes, but it can also be done with coatings.

Lenses are a Miraculous Invention Lenses are a Miraculous Invention

Mirror coatings combined with dyes or polarizers create a visual experience that speaks to users uniquely.  This can be because of the colors they reflect or the colors they absorb or the colors they transmit.  Finding a golf ball on the course can be much easier with the right pair of lenses!

We can also absorb wavelengths of light with coatings.  Our newest Light Enhancing Technology  absorbs short wavelength light to help with Computer Vision Syndrome and Digital Eye Strain.  We can absorb a little or a lot of High Energy Light.  With this same technology, we can absorb some of the UV spectrum.  This makes for a much happier lens wearer.

Enhancing lenses with thin-film coatings improves light transmission up to 98% and sometimes higher. Obviously, maximizing light transmission is critical for your customers' eye health. By applying light enhancing technology, we can improve the lives of our customers by reducing eye strain, reducing glare, and enabling them to actually see more of their worlds.

You already help your customers see better; now, help them see more.

For additional information, visit LightEnhancingTechnology.com