Lamp and plenum for laminar air flow ceiling

Abstract

A lamp having a first module for being attached to a ceiling or wall element, a second module connected to the first module and being rotatable with respect to the first module along a first axis, a third module having one or more light-emitting elements, the third module being connected to the second module and rotatable with respect to the second module along a second axis, the second axis being substantially perpendicular to the first axis.

1 . A laminar air flow ceiling for an operating room comprising
 a plenum defined by an upper wall, a lower wall, and one or more side walls,   and a plurality of lamps arranged substantially within the plenum, the lamps being surrounded by tubular elements,   wherein the lower wall comprises a plurality of substantially vertical holes, and wherein the plenum is at an over pressure with respect to the operating room such that a substantially laminar air flow exits the holes in the lower wall, and   wherein the lamps comprise:
 a first module; 
 a second module connected to the first module and being rotatable with respect to the first module along a first axis; 
 a third module comprising one or more light-emitting elements, the third module being connected to the second module and rotatable with respect to the second module along a second axis; 
 the second axis being substantially perpendicular to the first axis and the first axis being substantially vertical, 
 wherein the tubular elements are mounted at a first end to the upper wall of the plenum, and are mounted at a second end to the lower wall of the plenum. 
   
     
     
         2 . The laminar air flow ceiling according to  claim 1 , wherein the second axes of the plurality of lamps lie substantially in a plane coinciding with the lower horizontal wall of the plenum. 
     
     
         3 . The laminar air flow ceiling according to  claim 1 , wherein the first modules of the plurality of lamps are mounted at the upper horizontal wall of the plenum. 
     
     
         4 . The laminar air flow ceiling according to  claim 1 , wherein the lower wall of the plenum comprises a plurality of rectangular lower wall elements. 
     
     
         5 . The laminar air flow ceiling according to  claim 4 , wherein one or more of the lower wall segments comprise a cut-out adapted to substantially fit one of the tubular elements. 
     
     
         6 . The laminar air flow ceiling according to  claim 5 , wherein the cut-out is provided in a corner area of a rectangular lower wall element. 
     
     
         7 . The laminar air flow ceiling according to  claim 1 , wherein each of the plurality of lamps comprises a substantially semi-spherical cover. 
     
     
         8 . The laminar air flow ceiling according to  claim 1 ,
 wherein the first module of the lamps comprises a first motor having a first output shaft with a first gearing,   the first gearing meshing with gearing arranged on the second module.   
     
     
         9 . The laminar air flow ceiling according to  claim 8 ,
 wherein the second module of the lamps comprises a mechanism for rotating the third module along the second axis, said mechanism substantially not protruding beyond the edges of the second module.   
     
     
         10 . The laminar air flow ceiling according to  claim 9 , wherein the second module comprises a second motor having a second output shaft with a first pivot mounted at or near its end,
 a first end of a first rod connected at a first end of said first pivot,   the second end of the first rod is connected to a first end of a second pivot,   the second pivot being mounted on a third shaft arranged along said second axis,   such that the third shaft can be rotated by the second motor.   
     
     
         11 . The laminar air flow ceiling according to  claim 10 , wherein a first end of a second rod is connected at a second end of the first pivot, and the second end of the second rod is connected to a second end of the second pivot 
     
     
         12 . The laminar air flow ceiling according to  claim 1 , wherein the third module of the lamps comprises a plurality of LEDs. 
     
     
         13 . An operating room comprising an operating room ceiling and a laminar air flow ceiling according to  claim 1 . 
     
     
         14 . The operating room according to  claim 13 , wherein the laminar air flow ceiling is suspended from the operating room ceiling. 
     
     
         15 . The operating room according to  claim 13 , wherein the laminar air flow ceiling is integrated in the operating room ceiling.