jarod
01-18-2010, 16:21
опитах със гугъл транслейт, но се получават много странни изречения без логика :-o и нямам идея как ще се преведе примерно третото изречение.
Resolution is a measure of the smallest resolvable object on a display, and is expressed as display lines per millimeter or centimeter. Although sharpness, and its converse blur, are normally defined by the subjective reaction of the display user, sharpness has been formally measured as the ratio of the blurred border zone of letters to their stroke width. Legibility is related to character quality, or readability, and depends on the sharpness of characters. Contrast, or contrast ratio, is the measure of the luminance difference between an object and its background. While different definitions exist in the literature, luminance contrast as adopted by the International Lighting Commission (CIE) is given as
http://prikachi.com/files/1296151f.jpg
Lower luminance displays require greater contrast to achieve the same visibility of objects. The contrast, or luminance ratio between two surfaces in the central field of vision (e.g., a display and the desk on which it rests) should be around 3:1, while the ratio between the central field and surfaces farther away (e.g., around a room) can be as high as 10:1. Ratios greater than this can induce glare. The simplest methods for contrast enhancement are the use of hooded shades or displays that can be tilted away from the offending light. Contrast-enhancing filters, however, can be more effective. All filters involve reducing the amount of ambient light reflected back to the user, while leaving the emitted light from the display content as unchanged as possible. Several strategies for filtering exist, including etching
or frosting the display surface to break up and scatter specular reflections. Neutral density filters increase contrast by reducing the amount of light passing through them; ambient light must pass through twice before reaching the user’s eye, while display content must only pass through once. Micromesh filters placed on the display surface limit light penetration so only rays falling perpendicular to the mesh can penetrate; this stops both specular and diffuse reflections and increases contrast.Circular polarizers are neutral density filters that polarize incident light, which is then prevented from returning through the filter. Quarter-wave thin film coatings interfere with both specular and diffuse reflections.
Предварително благодаря.
Resolution is a measure of the smallest resolvable object on a display, and is expressed as display lines per millimeter or centimeter. Although sharpness, and its converse blur, are normally defined by the subjective reaction of the display user, sharpness has been formally measured as the ratio of the blurred border zone of letters to their stroke width. Legibility is related to character quality, or readability, and depends on the sharpness of characters. Contrast, or contrast ratio, is the measure of the luminance difference between an object and its background. While different definitions exist in the literature, luminance contrast as adopted by the International Lighting Commission (CIE) is given as
http://prikachi.com/files/1296151f.jpg
Lower luminance displays require greater contrast to achieve the same visibility of objects. The contrast, or luminance ratio between two surfaces in the central field of vision (e.g., a display and the desk on which it rests) should be around 3:1, while the ratio between the central field and surfaces farther away (e.g., around a room) can be as high as 10:1. Ratios greater than this can induce glare. The simplest methods for contrast enhancement are the use of hooded shades or displays that can be tilted away from the offending light. Contrast-enhancing filters, however, can be more effective. All filters involve reducing the amount of ambient light reflected back to the user, while leaving the emitted light from the display content as unchanged as possible. Several strategies for filtering exist, including etching
or frosting the display surface to break up and scatter specular reflections. Neutral density filters increase contrast by reducing the amount of light passing through them; ambient light must pass through twice before reaching the user’s eye, while display content must only pass through once. Micromesh filters placed on the display surface limit light penetration so only rays falling perpendicular to the mesh can penetrate; this stops both specular and diffuse reflections and increases contrast.Circular polarizers are neutral density filters that polarize incident light, which is then prevented from returning through the filter. Quarter-wave thin film coatings interfere with both specular and diffuse reflections.
Предварително благодаря.