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Their purpose was trying to pixel led Manufacturers objectively and possibly realistic represent the object. The Impressionists completely focused on capturing the visual impression and the pursuit of color changes. They often neglected the shape and contour of the object and painted object very loose and free for the only pursuit of color effect. People who were used to appreciating rigorous classical paintings were difficult to accept their art. In order to keep the works dynamic and realistic, most Impressionist painters took practice as creation and advocated finishing works in a light and no longer changed them after back to studio.

Emphasis on aesthetic function of paintings The traditional art have attached great importance to the content of the works. Classicalism loved plot, religious and historical themes; the romantic school often based on literary stories and the exotic, realism to depict and closely related to the times and social events to describe the common laborer; Impressionist mainly pursued the color effect of color changes, namely, the pursuit of art form with no interest in the theme and plot of painting. The Impressionists realized, based on a variety of different sensory organs all kinds of art communicated human feelings and the human spiritual activities must rely on special sensory channels to fully display. The literature mainly took language; words resorted to the thought, the music through melody, rhythm through the auditory, visual art resorting to color and lines. The plot and the story of painting could be appropriately attributed to literature function. Therefore, what they cared about was how to draw, concern about art form and color lines to create the visual impression and stimulation, regardless of its contents, no longer caring about what to paint. When we saw some of the Impressionists not to mind taking the trouble to draw a haystack and 20 pieces of a bridge, it was not a surprising thing.

Exploration of impressionist painting forms and pursuit of the painting nature made the painting become richer and freer with more painting characteristics. It should be said that this is liberation of painting. But its cognition function and education function of painting neglect is not desirable, which makes the Impressionist works often lack of social and historical sense of depth.

Coated glasses is the use of optical thin film and vacuum technology, surface coated with a layer of the lens material, to improve the ability to reflect light lens, serve to enhance or reduce the role of light through.

There are two coated glasses: one is reflective filter chip: the lens surface gold, silver, zinc sulfide, etc. Coating can reflect visible light, infrared, and r-ray, the eyes play a protective role. The other is anti-reflective lens piece by: magnesium fluoride coating on the lens surface, silica, aluminum fluoride, zinc oxide, etc., can reduce the specular reflection, to improve the transmittance of the lens. Appearance of the United States to help photographers take pictures.