Selecting the correct lens is as important as selecting a beautiful scene. For different uses and applications, lenticular lens sheets also have a set of specifications. Generally, eight parameters will help you in deciding the type of sheet you need for your project: Viewing Distance - The distance between you and the print is called viewing distance. While selecting a correct lenticular sheet for your application this becomes an important factor to consider. The correlation between the number of LPI and the optimal viewing distance is inverse so that the higher the LPI, the shorter the optimal viewing distance will be. Thickness – We measure it in inch or mm that affects the depth of an image ranging from 0.25mm to 6. 3mm. With the density of LPI, the thickness has a reverse correlation. The lower the LPI the thickness of the lenticular sheet will be more. Viewing Angle - Lenticular lens sheet China is a V-shaped region through which you can see the lenticular images. In general, in determining the type of effect, the viewing angle is a guideline. The picture becomes very sensitive to change just with a small viewing angle in a way that the viewer just needs to turn the head slightly a different set of pictures will be seen. Due to this fact, for 3D effects narrow viewing angle lenses are good and for dynamic prints such as animation, flip, morph, or zoom wide viewing angles lenses are good. Transparency - The higher the transparency the visual effect becomes clearer and better. The minimum transmittance rate should be 85%. Durability and Stability -To temperature and UV light different material has their sensitivity. Few materials are good for indoors and some are good for both indoors and outdoors. Material -Based on the application lenticular lens sheet manufacturer usually prepares it from various materials. You should select Acrylic or APET for a DIY project. Compared to other materials Acrylic tends to be more expensive. The price difference is not that much since we are not talking about mass projection so. Main source: jiangmen3d.wordpress.com/
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