Room conditioning lamp

Claim 1

A room conditioning apparatus for use with at least one longitudinally extending lamp and with a fresh-air supply, comprising: a lamp chamber for housing at least one lamp, said lamp chamber being defined by a first wall having longitudinal ends extending parallel to the longitudinally extending lamp and having lateral ends and by second and third walls extending transversely to oppositely disposed longitudinal ends of said first wall and abutting against the lateral ends of said first wall, said first wall extending longitudinally along the length of said lamp when said lamp is housed within said chamber, with only an air space between said first wall and said lamp, said chamber having an open light emission aperture defined by the longitudinal ends of said first wall and by ends of said second and third walls, and at least one exhaust return air opening disposed in one of said second and third walls, for exhausting return air passing from said room into said chamber through said light emission aperture, to a space outside said room; a supply inlet for coupling said supply air to said housing; a nozzle means formed by a baffle plate, spaced from said supply air inlet, and an interior surface of said first wall of said lamp chamber for coupling supply air from said inlet into said chamber along the length of said first wall and for causing said air to be substantially guided along the inside surface of said first wall to one of the longitudinal ends thereof through said chamber, past said lamp and to exit from said chamber through the peripheral portion of said light emission aperture bordered by said one longitudinal end of said first wall, whereby the flow of air along said inside surface will draw additional air from the room through said light emission aperture and past said lamp due to the Coanda effect with a portion of the air flowing through said exhaust return air opening.