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2. Color gel - Wikipedia

   en.wikipedia.org/wiki/Color_gel

   The size originates from the gelatin days: it is the same as a standard baker's sheet, which was used to cast the sheets. In the film industry, gels are usually cut straight from rolls 24 or 48 in (600 or 1,200 mm) wide and 50 ft (15 m) long, as the size required may vary from a single practical halogen spotlight in a ceiling to a whole window.

3. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   extrusion with cylinders into sheets (0.5–20 mm (0.020–0.787 in)) and films (below 1 mm (0.039 in)), which can be used directly or manufactured into other shapes using thermoforming or secondary fabrication techniques, such as bending, drilling, or routing. Due to its chemical properties it is not conducive to laser-cutting.

4. Window film - Wikipedia

   en.wikipedia.org/wiki/Window_film

   Tesla tinted windows at 20% all around. Not all films are suitable for all glass. The absorptance of the glass and the film, the size of the pane, the thickness of the glass, the construction of the window should be considered in terms of single pan-, insulated glass, treated (with a low-emissivity coating), laminated or toughened.

5. Ordered dithering - Wikipedia

   en.wikipedia.org/wiki/Ordered_dithering

   Equivalently, the size of the map selected should be equal to or larger than the ratio of source colors to target colors. For example, when quantizing a 24 bpp image to 15 bpp (256 colors per channel to 32 colors per channel), the smallest map one would choose would be 4×2, for the ratio of 8 (256:32).

6. Sheet film - Wikipedia

   en.wikipedia.org/wiki/Sheet_film

   Sheet film is large format and medium format photographic film supplied on individual sheets of acetate or polyester film base rather than rolls. Sheet film was initially supplied as an alternative to glass plates. The most popular size measures 100 mm × 130 mm (4 in × 5 in); smaller and larger sizes including the gigantic 510 mm × 610 mm ...

7. Photochromic lens - Wikipedia

   en.wikipedia.org/wiki/Photochromic_lens

   Photochromic lenses may be made of polycarbonate, or another plastic. Glass lenses use visible light to darken. Glass lenses use visible light to darken. They are principally used in glasses that are dark in bright sunlight, but clear, or more rarely, lightly tinted in low ambient light conditions.