Wall-mounted over-bed lighting fixture
AssigneeHospital Systems, Inc.
InventorDavid H. Miller
Life of this patent
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Abstract
The housing for the fixture is mounted on a wall over the patient's bed. The housing accommodates a first non-rotatable fixture which directs light from fluorescent tubes downward through a conventional flat prismatic lens. There is also a longitudinally extending lens mounted within the outline of the housing and rotatable by means of handles at either end so that light from a second set of fluorescent tubes may be adjusted to function as a reading lamp for the patient, as an examining light at different locations of the patient's body and as a room illumination source, the intensity of room illumination being adjustable. A safety switch is moved to "off" position when the housing is struck by an object such as an IV rod fixed to an adjustable bed to stop the motor which moves the bed.
Claims11
An over-bed hospital lighting fixture comprising a longitudinally disposed housing having mounting means for mounting said housing on a wall,
- end caps on either end of said housing formed with aligned circular openings,
- a cylindrically arcuate member positioned in said housing outward of said mounting means and transverse to said end caps having its center of curvature substantially co-extensive with the center of curvature of said circular openings and disposed longitudinally of said housing,
- a substantially semi-cylindrical, substantially opaque lens mounting rotatable about an axis concentric with said center of curvature and having first connecting means along its longitudinal edges,
- a substantially semi-cylindrical, transparent lens with its axis substantially co-extensive with said center of curvature and having second connecting means along its longitudinal edges cooperable with said first connecting means to combine said lens mounting and said lens as a cylindrical unit,
- a pair of mounting disks connected adjacent either end of said housing for rotation with said cylindrical unit and having light sockets to receive light bulbs,
- a handle at at least one end of said housing having a shaft passing through said circular opening and connected for rotation with said lens mounting, said lens and said mounting disk,
- whereby by turning said handle the relative amount of light passing out of said housing through said lens may be adjusted.
Dependencies are inferred from the claim text.