Image conversion lamp device
Provided is a lamp device installed on the front of a vehicle, and the light device may connect a drive unit to a light source module to thus rotate an optical module, thereby implementing various optical image patterns and also converting the optical image pattern.
1 . A lamp device comprising:
a lamp housing installed on a front of a vehicle, and having an accommodation space therein;
a plurality of optical modules, each optical module disposed in the accommodation space and comprising a light source and an optical-module shaft;
a shaft gear mounted on each optical-module shaft;
a connecting gear, disposed between and meshing with the shaft gears, configured to rotate the optical modules, the connecting gear being mounted on a connecting shaft engaging the lamp housing and having a guide groove, the connecting shaft having a protruding guide received in the guide groove to limit an amount of rotation of the connecting gear; and
a drive unit for transmitting rotational power to the connecting gear to rotate the optical modules.
2 . The lamp device of claim 1 , wherein each optical module further includes
a lighting plate installed in front of the light source.
3 . The lamp device of claim 2 , wherein the lighting plate includes a front pattern configured to form a forward optical image pattern using light emitted from the light source.
4 . The lamp device of claim 3 , the lighting plates of the plurality of optical modules having a common front pattern.
5 . The lamp device of claim 3 , the front patterns of the plurality of optical modules being different from each other.
6 . The lamp device of claim 2 , wherein the lighting plates of the plurality of optical modules are of colors different from each other.
7 . The lamp device of claim 2 , wherein the lighting plates of the plurality of optical modules are of a common color to produce a color-uniform optical image pattern.
8 . The lamp device of claim 2 , wherein:
each optical module further includes a heat dissipation unit to dissipate heat from the light source, and
the heat dissipation unit is spaced apart from the light source by a set distance.
9 . The lamp device of claim 2 , wherein: the plurality of optical modules are arranged along a line corresponding to a shape of the lamp housing.
10 . The lamp device of claim 9 , wherein the plurality of optical modules are arranged along a curved line to correspond to a curvature of the lamp housing.
11 . The lamp device of claim 9 , wherein:
the drive unit comprises a direct-current motor lacking positional feedback; and
the guide groove and protruding guide cooperate to define a maximum rotation angle of the optical modules.
12 . The lamp device of claim 2 , wherein each of the lighting plates of the plurality of optical modules includes a side pattern on one side thereof that becomes visible when a corresponding optical module is rotated away from a forward-facing position.