A gradation pattern is a pattern with smooth changes in transmittance or reflectance. EQUA allows you to design not only linear changes, but also various curves such as sine waves and parabolas.
There are two types of transmission type: film type and glass type. The film type uses unique data processing and a unique precision exposure process to create extremely smooth and freely changing gradation patterns in density. For the glass type, we use our unique data processing technology and high-precision drawing equipment to enable smooth gray scale expression with minute dots as small as 2 μm. Reflective types create patterns using the rich neutral color expression of photographic paper.
Examples of production using Glass Substrate
This is a rotating gradation. The gradation is expressed with a thin chrome film on the glass substrate. The shading of the gradation is made up of the placement ratio of dots with a minimum size of 2um.
This pattern is designed to increase transmittance from the center to the outer.
This is a pattern that repeats sine waves concentrically.
This is a sine wave gradation pattern of horizontal changes .
Example of production using PET Substrate
This is a gradation pattern made of PET base material. Although it has a rougher pattern than glass products, it has advantages in terms of ease of handling and cost. The shading of the gradation is determined by the placement ratio of the dots.
Example of production using Photographic Paper Substrate
This is a gradation pattern made using photographic paper. It is possible to express gradation shading in gray.
Gradation Patterns
Using gradation patterns, the light transmittance rate can be varied smoothly. These can for example be used as lighting control patterns. The transmittance rate can be varied not only linearly but based on all sorts of curves, including sine waves and parabolas, and in addition to glass, PET, and the like, paper media can be used as substrates as well.
A pattern in which the transmittance rate has been varied in a radiating shape.
Linear variation of the transmittance rate. Any tilting angle can be used.
A pattern in which the transmittance rate has been varied in a sine wave shape. Any frequency can be used.
A pattern in which the transmittance rate has been varied in a rotational direction. In the case of a glass substrate, it is possible to for instance machine the substrate into a circular shape or create a hole in the center.
