Undershelf task light fixture

• US 5,079,680 A
• Filed: 06/07/1991
• Issued: 01/07/1992
• Est. Priority Date: 06/07/1991
• Status: Expired due to Fees

• Current Assignee: CAMCAR Intellectual Properties, LLC
• Original Assignee: Reflector-Hardware Corporation
• Inventors: Kohn, Mitchell B.
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): Heyman, Leonard
• Application Number:
  US07/712,084
• Time in Patent Office: 214 Days
• Field of Search: 362/222, 362/221, 362/223, 362/224, 362/260, 362/297, 362/299, 362/303, 362/359, 362/127, 362/133, 362/125
• US Class Current: 362/127
• CPC Class Codes: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 11/16 using sheets without apertures, e.g. fixed
• CPC Class Codes: F21V 7/0008 providing for indirect lighting
• CPC Class Codes: F21W 2131/402 for working places
• CPC Class Codes: F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes

Abstract

An improved undershelf elongated task light fixture. The fixture includes an elongated housing means having a top, a front wall depending from the top, and a back wall depending from the top and spaced rearwardly of the front wall. A tubular lamp is positioned in the housing between the front wall and the back wall. An elongated shield having a rearwardly facing, downwardly and rearwardly inclined reflector element is mounted on the housing. The shield lies beneath, and extends forwardly of, the tubular lamp. The housing and shield define an elongated opening adjacent the base of the housing between the front wall and the tubular lamp. A light diffuser, such as a batwing diffuser, covers the opening. The elongated shield substantially blocks direct radiation from the tubular lamp from impinging on the light diffuser, hence prevents veiling reflections almost entirely.

Claims

1. An undershelf elongated task light fixture comprising a housing means having a much greater length than depth, said housing means having a base, a top, a front wall depending from said top, and a back wall depending from said top and spaced rearwardly of said front wall, said top, said front wall and said back wall each running substantially the full length of said housing means,

means in said housing means for mounting and powering an elongated tubular lamp to position said tubular lamp in a location between said front wall and said back wall, said lamp running lengthwise of said housing means,

an elongated shield having a rearwardly facing, downwardly and rearwardly inclined reflector element in said housing means running lengthwise of said housing means, said shield lying beneath, and extending forwardly of, said tubular lamp location,

said housing means and shield defining an elongated opening adjacent the base of said housing means between said front wall and said tubular lamp location, said opening running lengthwise of said housing means, and

a light diffuser covering said opening, said elongated shield substantially blocking direct radiation from said tubular lamp from impinging on said light diffuser.

2. A task light fixture in accordance with claim 1 and wherein said housing means and shield define a second elongated opening adjacent said back wall, said second opening running lengthwise of said housing means,

a second light diffuser covering said second opening, said elongated shield extending rearwardly of the front of said tubular lamp location a distance greater than half of the width of any associated tubular lamp.

3. A task light fixture in accordance with claim 1, and wherein said housing means includes reflector means running lengthwise of said housing means and being disposed along said top of said housing means.

4. A task light fixture in accordance with claim 3, and wherein said reflector means comprises an inserted reflector.

5. A task light fixture in accordance with claim 1, and wherein said diffuser is a batwing diffuser.

6. A task light fixture in accordance with claim 2, and wherein said diffusers are batwing diffusers.