Method for installing a secondary optical lens on a LED street lamp

• US 8,360,616 B2
• Filed: 07/30/2008
• Issued: 01/29/2013
• Est. Priority Date: 07/31/2007
• Status: Active Grant

• Current Assignee: Xuliang Li
• Original Assignee: Xuliang Li
• Inventors: Li, Xuliang
• Primary Examiner(s): Han, Jason Moon
• Assistant Examiner(s): APENTENG, JESSICA MCMILLAN
• Application Number:
  US12/182,154
• Publication Number:
  US 20090034269A1
• Time in Patent Office: 1,644 Days
• Field of Search: 362/800, 362/332, 362/244, 362/267, 362/249.02, 362/308, 362/326, 362/235, 362/311.02
• US Class Current: 362/311.02
• CPC Class Codes: F21S 8/08 with a standard F21S6/00 takes precedence
• CPC Class Codes: F21V 17/104 using feather joints, e.g. tongues and grooves, with or without friction
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21W 2131/103 of streets or roads

Abstract

A method of installing a secondary optical lens on a LED street lamp comprises the first step of installing a secondary optical lens on a lens floor and the second step of installing the lens floor with the secondary optical lens and a LED arrayed board on the body of the LED street lamp. By this method, LED bulb and secondary optical lens can contact directly and be located precisely.

Claims

1. A method of installing a secondary optical lens on a LED street lamp comprising,

a. install said secondary optical lens on a lens floor;

said lens floor has a plurality of lens mounting holes, each of which has two elastic tongue pieces symmetrically on the edge;

said secondary optical lens has a flat bottom, a dent which has the same shape with convex top of a LED bulb is mounted to said bottom, and two hooks extruding out of said bottom are respectively and symmetrically mounted to both sides of said dent;

said bottom of said secondary optical lens is in close contact with front of said lens floor, said dent of said secondary optical lens locates into area of said lens mounting hole, and said two hooks buckle said two tongue pieces on the edge of lens mounting hole;

said two hooks of said secondary optical lens have clearance along the x axis and y axis of said lens floor in the area of said lens mounting hole, when given a force to said secondary optical lens along the z axis that is vertical to said lens floor, which make said secondary optical lens have the trend of leaving said lens floor, said secondary optical lens will move along the z axis, meanwhile, overcome the elastic force of said two tongue pieces on the edge of lens mounting hole;

each of said lens mounting holes corresponds to one of said secondary optical lens;

b. install said lens floor which has said secondary optical lens and a LED arrayed board the body of said LED street lamp;

combine the back of said lens floor which has said secondary optical lens with the front of said LED arrayed board on which a plurality of LED bulbs are mounted, make the position of said LED bulb corresponds to the position of said secondary optical lens, and make convex top of each of said LED bulb locate in one said dent of said secondary optical lens though said lens mounting hole;

said body of LED street lamp has a capacity space, where the back of said LED arrayed board is in close contact with the bottom of said capacity space, the back of said lens floor which has said secondary optical lens is in close contact with the front of said LED arrayed board, and said LED arrayed board and said lens floor make the fixed connection to said body of LED street lamp with a fastener.

2. A method of installing a secondary optical lens on a LED street lamp in accordance with claim 1, wherein said lens floor of step a is more than one block, said LED arrayed board of step b is also more than one block, however, said capacity space in the body of LED street lamp of step b is one cavity.

3. A method of installing a secondary optical lens on a LED street lamp in accordance with claim 1, wherein said lens floor of step a is flat, said LED arrayed board of step b is also flat, and said bottom of capacity space in the body of LED street lamp of step b is plane.

4. A method of installing a secondary optical lens on a LED street lamp comprising,

a. install said secondary optical lens on a lens floor;

said lens floor has a plurality of lens mounting holes, each of which is circular, and each of said lens mounting hole has three elastic tongue pieces evenly distributed on the edge;

said secondary optical lens has a flat bottom, a dent which has the same shape with convex top of a LED bulb is mounted to said bottom, and three hooks extruding out of said bottom are evenly distributed around said dent;

said bottom of said secondary optical lens is in close contact with front of said lens floor, said dent of said secondary optical lens locates into area of said lens mounting hole, said three hooks buckle said three tongue pieces on the edge of lens mounting hole;

said three hooks of said secondary optical lens have clearance along the x axis and y axis of said lens floor in the area of said lens mounting hole, when given a force to said secondary optical lens along the z axis that is vertical to said lens floor, which make said secondary optical lens have the trend of leaving said lens floor, said secondary optical lens will move along the z axis, meanwhile, overcome the elastic force of said three tongue pieces on the edge of lens mounting hole;

each of said lens mounting holes corresponds to one of said secondary optical lens;

b. install said lens floor which has said secondary optical lens and a LED arrayed board onto the body of said LED street lamp;

combine the back of said lens floor which has said secondary optical lens with the front of said LED arrayed board on which a plurality of LED bulbs are mounted, and make the position of said LED bulb corresponds to the position of said secondary optical lens, and make convex top of each of said LED bulb locate in one said dent of said secondary optical lens through said lens mounting hole;

said body of LED street lamp has a capacity space, where the back of said LED arrayed board is in close contact with the bottom of said capacity space, the back of said lens floor which has said secondary optical lens is in close contact with the front of said LED arrayed board, and said LED arrayed board and said lens floor make the fixed connection to said body of LED street lamp with a fastener.