Light sources lose themselves when penetrating material energy. It does not matter whether the material to be penetrated is in either gaseous form or in the solid state. Only in a pure vacuum, light sources are spreading unchecked.
Accent lighting is used to emphasize individual spatial zones or objects with illuminances above the level of - general lighting. It emphasizes space areas or individual objects. Accentuating light breaks up the room atmosphere. Accent lighting lives off different illumination levels: it plays with strong contrasts and deep shadows, varying brightness and light, e.g. pictures, furniture, art objects.
Accommodation refers to the adaptation of the eye to project sharp images of objects at different distances.
Action spectrum is the spectral sensitivity for a light-induced effect. There are action spectra for various biological effects, such as the occurrence of sunburn by UV or for vitamin D formation by UV-B.
Adaptation is the ability of the eye to adapt to different luminances (change from light to dark) in the visual field. The adaptation process and thus the adaptation time are determined by the luminance at the beginning and end of the change in brightness, and therefore it may take several minutes for the eyes to get used to the new light conditions. The adaptation of the eye is performed by the enlargement or reduction of the pupil in response to the change in sensitivity of the retinal receptors and the interaction between rods and cone vision.
An intermediate adapter piece which is used to connect various mechanical or electrical devices (such as light).
Adaptive color mixing
An adaptive color mixing is defined as the mixing of colors by the addition of spectral ranges. The adaptive color mixture is given by the three-color theory, the complementary colors of the primary colors. White light is generated by the uniform mixing of the three primary colors.
Alabaster has a visual resemblance to marble. If it is appropriately cut so thin, it looks like frosted glass. It is very translucent and provides a warm and cozy light.
Lamps tune up technically almost the same as the tube types. By equipping an outer glass or plastic bulb, they look very similar to conventional incandescent bulbs. Due to this construction, the operating temperature of the enclosed interior lamps is considerably higher than other types of lamps. However achieving maximum light output requires for amalgam technology to be used.
An anti-dazzle refers to the shielding of direct light components in the emission of a light fixture. In this case, the cone of light of a lamp is limited to the main direction of emission. Through this anti-dazzle scattered components are reduced or avoided.
Ancient lamps (also known as Antique Lamps) refer to a particular style. Antique lamps are regarded as "trimmed" in their appearance and remind us of Chandeliers from old mansions. With a flamboyant, old-world charm, antique lamps provide the right light and mood.
Architectural lighting refers to the lighting concepts of daylight and artificial light. The technical solutions are in most cases part of the facade design.
The actually short-lasting period of Art Nouveau from 1890 to the mid-20s of the last century brings lines and curves in perfect harmony. Where initially flower decors and curved lines predominated, geometrical forms took over later on without any reference to historical events. There are elements derived from nature, which are often highlighted by color trims. Characteristic of the Art Nouveau style are line, serpentine, everything flowing, plants, moving water, swan, hair that is stiff, lifeless, sterile to an abstract ornament. It is an area of art, two-dimensional, without any illusion of space.
In general, for many subjects in art or in the design of facades, displays, gardens, and so on, it is not a symmetrical layout at best, but one that comes close to the golden ratio (approximately 5:8). Sometimes this is also true in the natural sciences or sociology. With respect to light distribution of a different strong light beam from a light source it is referred to as an asymmetrical light distribution.