Adjustable downlighter
View Patent ↗A vehicle or trailer side marker and/or downlight ( 10 ) includes a casing or housing ( 1 ) and adjustable mounting ( 4,5 ), an internal reflector an internal baffle or shield, a light source, a lens or diffuser cover to allow adjustment of beam orientation, direction or angular spread to determine ground spread and beam upper margin limits so as not to dazzle others.
1. A multi-role combination lamp comprising:
a housing containing a i) first light beam source and spread portion, and ii) a second light beam source and director portion, wherein,
the first light beam source direction and spread portion includes an internal reflector and external lens configured to direct light output substantially horizontal with a shallow spread angle, of up to 90 degrees in a horizontal plane, to provide a visual side marker and delineator for external observation, and
the second light beam source and director portion includes an internal reflector and external lens configured to direct light output substantially downward with a beam spread angle of 75 degrees in a vertical plane comprising between 15 to 30 degrees rearward of the vertical and limited up to 45 degrees forward of the vertical.
2. The lamp of claim 1 , further comprising side marker and down light beam source and director portions located in separate housings, the side marker and down light beam source and director portions being mutually coupled.
3. The lamp of claim 1 , further comprising fixed aspect side marker and adjustable down light beam source and director portions sharing a common housing and mounting, the fixed aspect side marker and adjustable down light beam source and director portions being independent in portioning and independently adjustable in beam orientation.
4. The lamp of claim 1 , further comprising a plurality of light beam sources and director portions located on respective discrete adjustable mountings to direct beam orientations and beam boundaries with beam spreads determined by reflectors.
5. The lamp of claim 1 , further comprising integrated side marker and downlight housings that share a common mounting, the individual side marker and downlight housings retaining independent beam spread and direction for side and downlight beams.
6. The lamp of claim 1 , further comprising filters that adjust beam output intensity and colour.
7. The lamp of claim 1 , further comprising side marker and down light beam source and director portions in separate housings, and on a shared mounting.
8. The lamp of claim 1 , further comprising filters that adjust beam output intensity.
9. The lamp of claim 1 , further comprising filters that adjust beam output color.
10. The lamp of claim 1 , further comprising diffusers that adjust beam output intensity.