Lenticular lens is a strategy that has evolved immeasurably with time, and it’s even being used today. Generally, it’s a collection of magnifying lenses, which are arranged in a way that one can see diverse images magnified when observed from distinct angles. You may possibly have seen some images/pictures that produce a 3D effect when you changed the angle of view, for instance, a hologram. Here, the technological innovation used was the lenticular printing, where lenticular lenses generate printed pictures with a delusion or compound images. Nowadays, this technological innovation is utilized in gaming systems, 3D TVs, and in eyeglasses to control severe vision problems.
A lenticular lens is totally different from holograms. We discussed briefly during our Physics tuition classes that holograms must be viewed in suitable angles and lighting. Lenticular technology, on the other hand, utilizes a complete spectrum of colors that’s observable in any condition, and is much more visible and detailed. Lenticular technology entails exhibiting many sets of images, which vary when viewed from various angles. Depth illusion or motion illusion is the outcome of this technique. It’s among the techniques where 3D videos or images are developed. It can simply be described as the steady print transformation into an interactive and dynamic print.
Operation of Lenticular Lenses
– It’s accomplished by interlacing graphics using a lenticular lens, which produce various images to the observer based on the angle of view. Interlacing implies that the images are sub-divided into ‘shreds’, and then, put together into one graphic.
– In order to generate a lenticular image, at minimum of two images are required.
– Lenticular plastic sheet has a single smooth side, on which the graphic is directly printed, while lenticules are used in making the other side.
– Each lenticule acts as a magnifying crystal, which when observed from various angles, magnifies and displays that part of the interlocked image beneath.
– If these lenticules are vertically oriented, then, it’s possible to see a distinct image with two frames at the exact same time. That is, each eye perceives a distinct frame, which produces a 3D effect.
– When the lenticules are horizontally oriented, it produces a cleaner and better-animated result.
– The viewing angle and thickness of the lenticules might show a discrepancy.
Lenticular lenses are mainly employed in eyeglasses for rectifying severe farsightedness where implants aren’t possible. This farsightedness type could be as a result of cataract surgical treatment. Minus lenticular lens is used in rectifying severe nearsightedness. The lens’ power is concentrated on a small region in the center of the lens. By distributing the power throughout the lens, it would lead to much greater thickness and weight of the lens. The remaining part of the lens has no or little power, and is there just for supporting the lenticular portion. Generally lenticular lenses, incorporate only two distinct magnifications. One of the lens’ areas has a single refractive corrective power, while, the other region has different power.