Motor vehicle component with backlit symbol and homogeneous illumination achieved by a light guide and motor vehicle

Abstract

The invention relates to a motor vehicle component (10) with a lens body (12) having a viewing side (14). In an installed position of the motor vehicle component (10) in the motor vehicle, the viewing side (14) faces a viewer of the motor vehicle component (10). The lens body (12) has at least one symbol (16) that can be backlit by means of a light source (18) of the motor vehicle component (10). A light guide (20) of the motor vehicle component (10) has a narrow side (22), wherein light from the light source (18) can be coupled into the light guide (20) via the narrow side (22) of the light guide (20) to backlit the symbol (16). At least on one underside (52) of the light guide (20) facing away from the aperture body (12) a plurality of protrusions (28) and / or depressions (30) are formed, through which the light can be coupled out of the light guide (20) towards the aperture body (12) at least in the area of ​​the symbol (16).Furthermore, the invention relates to a motor vehicle with at least one motor vehicle component (10).

Claims

[1] Motor vehicle component (10) with a panel body (12) which has a visible side (14), wherein the visible side (14) in an installed position of the motor vehicle component (10) in the motor vehicle faces a viewer of the motor vehicle component (10), wherein the panel body (12) has at least one symbol (16) which can be backlit by means of a light source (18) of the motor vehicle component (10), and with a light guide (20) which has a narrow side (22), wherein for backlighting the symbol (16) light from the light source (18) can be coupled into the light guide (20) via the narrow side (22) of the light guide (20), characterized by that at least on an underside (52) of the light guide (20) facing away from the diaphragm body (12), a plurality of elevations (28) and / or depressions (30) are formed, by means of which a coupling out of the light from the light guide (20) towards the diaphragm body (12) can be effected at least in the region of the symbol (16). [2] Motor vehicle component (10) according to claim 1, characterized by that a radiation chamber (36) of the motor vehicle component (10), through which the light coupled out of the light guide (20) passes during operation of the light source (18) to an underside (34) of the visor body (12) facing the light guide (20), is designed to be closed in the circumferential direction by means of at least one housing wall (38, 40, 42, 44) of the motor vehicle component (10) and / or is designed to be free of optical elements that influence the light. [3] Motor vehicle component (10) according to claim 2, characterized by that by means of the elevations (28) and / or depressions (30) a, in particular uniform, coupling out of light from the light source (18) in a light coupling-out region (46) of the light guide (20) can be effected, wherein the light coupling-out region (46) of the light guide (20) is delimited in the circumferential direction by the at least one housing wall (38, 40, 42, 44). [4] Motor vehicle component (10) according to one of the preceding claims, characterized by that the motor vehicle component (10) comprises at least one reflector device which is designed to reflect light towards an underside (34) of the visor body (12) facing the light guide (20). [5] Motor vehicle component (10) according to claim 4, characterized by that the at least one reflector device is designed as a component (56) separate from the light guide (20), which component faces the underside (52) of the light guide (20) facing away from the diaphragm body (12) and / or bears against the underside (52) of the light guide (20) facing away from the diaphragm body (12). [6] Motor vehicle component (10) according to claim 4 or 5, characterized bythat the at least one reflector device is designed as a coating (50) of the light guide (20), which is applied to the underside (52) of the light guide (20) facing away from the diaphragm body (12), wherein the coating (50) is applied to the underside (52) of the light guide (20) in particular by gas phase deposition, preferably by physical gas phase deposition. [7] Motor vehicle component (10) according to one of the preceding claims, characterized by that a bottom part (48) of a housing of the motor vehicle component (10) has a coating (58) designed to reflect light, in particular provided by a white and / or silver-colored lacquer layer, wherein the underside (52) of the light guide (20) faces the bottom part (48) of the housing. [8] Motor vehicle component (10) according to one of the preceding claims, characterized byin that the light guide (20) has a transition section (60) which extends from the narrow side (22) of the light guide (20) to a light output region (46) of the light guide (20), wherein the elevations (28) and / or depressions (30) are formed in the light output region (46) of the light guide (20), and wherein the transition section (60) is free of elevations (28) and depressions (30). [9] Motor vehicle component (10) according to claim 8, characterized by that the transition section (60) has a width (62) which increases, in particular continuously increases, from the narrow side (22) of the light guide (20) towards the light output region (46) of the light guide (20). [10] Motor vehicle component (10) according to claim 8 or 9, characterized byin that the motor vehicle component (10) has a covering device (64) which surrounds the transition section (60) and by means of which a light emission via an outer circumference of the transition section (60) into an environment of the covering device (64) can be reduced. [11] Motor vehicle component (10) according to one of the preceding claims, characterized by that at least the underside (52) of the light guide (20) facing away from the diaphragm body (12) and having the elevations (28) and / or depressions (30) is inclined relative to an underside (34) of the diaphragm body (12) facing the light guide (20) and / or the light guide (20) has a thickness (54) that decreases with increasing distance from the light source (18) in a light output region (46) having the elevations (28) and / or depressions (30). [12] Motor vehicle component (10) according to one of the preceding claims, characterized bythat the at least one symbol (16) is designed to identify at least one function of the motor vehicle and / or the motor vehicle component (10) is designed as an operating element of the motor vehicle that can be actuated by the viewer on the visible side (14), wherein when the motor vehicle component (10) is in the installed position, at least one function of the motor vehicle can be activated by actuating the operating element. [13] Motor vehicle with at least one motor vehicle component (10) according to one of the preceding claims, wherein the at least one motor vehicle component (10) is located in the motor vehicle in an installation position in which the visible side (14) of the visor body (12) faces a viewer of the motor vehicle component (10).

Images