Lighting device with foldable housing

Patent metadata

Field	Value
Publication number	US-2016334065-A1
Application number	US-201515110411-A
Country	US
Kind code	A1
Filing date	Jan 20, 2015
Priority date	Jan 20, 2014
Publication date	Nov 17, 2016
Grant date	—

Abstract

A method for manufacturing a lighting device ( 100 ), the method comprising the steps of providing (S 1 ) a sheet of optically transmissive plastic material, forming (S 2 ) a lighting device housing from the sheet of optically transmissive plastic material, such that the lighting device housing comprises a first portion ( 212 ) connected to a second portion ( 214 ) by a flexible connecting portion ( 202 ), folding (S 3 ) the first ( 212 ) or second portion ( 214 ) about the flexible connecting portion ( 202 ) to enclose a light source ( 210 ) and driver electronics ( 206 ) within an enclosed region of the lighting device housing, and securing (S 4 ) the first portion ( 212 ) to the second portion ( 214 ) such that the lighting device housing maintains the folded position.

First claim

1 . A lighting device comprising:
a lighting device housing formed in an optically transmissive material, a light source arranged within said lighting device housing, driver electronics configured to drive said light source, arranged within said lighting device housing, wherein said lighting device housing comprises: a first housing portion and a second housing portion connected to each other by a flexible connecting portion, said first housing portion being configured to be folded about said flexible connecting portion to enclose said light source and said driver electronics within said lighting device housing, and; means for securing said first housing portion to said second housing portion to maintain said lighting device housing in a folded position, wherein said lighting device housing is formed in one piece.

2 . A lighting device according to claim 1 , wherein said optically transmissive material is a thermo formable plastic.

3 . A lighting device according to claim 1 , wherein said optically transmissive material is transparent.

4 . A lighting device according to claim 1 , further comprising a heat spreader arranged within the lighting device housing and configured to conduct heat from said light source and/or driver electronics to said lighting device housing.

5 . A lighting device according to claim 4 , wherein said heat spreader comprises a heat conducting foil and/or a preformed heat conductive element.

6 . A lighting device according to claim 1 , wherein said means for securing comprises an ultrasonic weld, a thermal weld, a snap fitting, and/or deformation fitting.

7 . A lighting device according to claim 1 , wherein said lighting device housing comprises diffusing elements configured to scatter light propagating through said lighting device housing.

8 . A lighting device according to claim 1 , wherein said lighting device housing comprises wavelength converting material.

9 . A lighting device according to claim 7 , wherein said diffusing elements and/or wavelength converting material is comprised in: a pattern printed on said transparent plastic material, a film laminated on said transparent plastic material and/or a material co-extruded with said transparent plastic material.

10 . A lighting device according to claim 1 , wherein said lighting device housing further comprises a removable hanger portion.

11 . A lighting device according to claim 1 , wherein said lighting device housing further comprises at least one assembly aid portion configured to hold said light source and/or said driver electronics.

12 . A lighting device according to claim 1 , wherein said lighting device housing comprises a plurality of housing portions, and wherein each of said plurality of housing portions is connected to an adjacent housing portion by a flexible connecting portion.

13 . A lighting device according to claim 1 , further comprising a base portion attached to an outside of said lighting device housing, and electrically connected to said driver electronics and configured to connect said lighting device to a power source.

14 . A method for manufacturing a lighting device ( 100 ), said method comprising the steps of:
providing a sheet of optically transmissive plastic material, forming a lighting device housing from said sheet of optically transmissive plastic material, such that said lighting device housing comprises a first portion connected to a second portion by a flexible connecting portion, folding said first or second portion about said flexible connecting portion to enclose a light source and driver electronics within an enclosed region of said lighting device housing, and securing said first portion to said second portion such that said lighting device housing maintains said folded position.

15 . A method for manufacturing a lighting device according to claim 14 , further comprising at least one of the steps of;
preprinting said optically transmissive plastic material, laminating said optically transmissive plastic material, and co-extruding said optically transmissive plastic material.

Assignees

• Philips Lighting Holding Bv

Inventors

• Den Boer Reinier Imre Anton

Classifications

• F21V9/30

  Elements containing photoluminescent material distinct from or spaced from the light source (shades F21V1/17; globes, bowls or cover glasses F21V3/08, F21V3/12; refractors F21V5/10; reflectors F21V7/26, F21V7/30; elements with provision for controlling the spectral properties or intensity F21V9/40) · CPC title

• F21V23/009

  the casing being inside the housing of the lighting device · CPC title

• F21K9/90

  Methods of manufacture · CPC title

• F21Y2105/10

  comprising a two-dimensional [2D] array of point-like light-generating elements · CPC title

• F21K9/237 Primary

  Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases (F21K9/238 takes precedence) · CPC title