Surface mounted led package

• US 4,959,761 A
• Filed: 12/21/1989
• Issued: 09/25/1990
• Est. Priority Date: 12/21/1989
• Status: Expired due to Fees

• Current Assignee: Dialight Corporation (Dialight PLC)
• Original Assignee: Dialight Corporation (Dialight PLC)
• Inventors: Dowstra, Bart, Critelli, John, DeBaun, Carleton, Oesterheld, Klaus
• Primary Examiner(s): Ostrager, Allen M.
• Application Number:
  US07/454,468
• Time in Patent Office: 278 Days
• Field of Search: 362/226, 362/800
• US Class Current: 362/646
• CPC Class Codes: F21V 19/002 the fastening means engaging the encapsulation or the packaging of the semiconductor device
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 33/486 adapted for surface mounting
• CPC Class Codes: H05K 3/301 by means of a mounting structure H05K3/325 takes precedence
• CPC Class Codes: H05K 3/3421 Leaded components
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

A surface mounted LED package according to the invention includes a housing having a generally rectangular parallelepipedal shape. A lens is received in a passageway in the housing and has a radiating surface extending beyond the surface of the housing, a rear light collecting surface, and a cavity to receive an LED. An LED is received in the lens cavity. Conductive spring clips engage the housing and make electrical contact with the LED.

Claims

1. A surface mounted LED package comprising:

(a) a housing having;

(i) a generally rectangular parallelepipedal shape;

(ii) a first surface that, in use, is adjacent a printed circuit board;

(iii) a second surface opposite said first surface;

(iv) a third surface joining said first and second surfaces;

(v) a fourth surface opposite said third surface;

(vi) a fifth surface joining said first and second surfaces;

(vii) a sixth surface opposite said fifth surface;

(viii) a first shoulder recessed beneath said first surface;

(ix) a second shoulder recessed beneath said first surface;

(x) a third shoulder recessed beneath said second surface;

(xi) a fourth shoulder recessed beneath said second surface; and

(xii) a passageway extending from said third surface to said fourth surface;

(b) a lens received in said passageway and having;

(i) a radiating surface extending beyond said third surface of said housing;

(ii) a rear surface with a cavity sized and shaped to receive an LED; and

(iii) a light collecting surface inside above said cavity;

(c) an LED received in said cavity in said rear surface of said lens, said LED having;

(i) a first surface;

(ii) a second surface opposite said first surface;

(iii) a first electrical contact on said first surface;

(iv) a second electrical contact on said first surface; and

(v) a light emitting portion in said second surface facing said lens;

(d) a first conductive spring clip having;

(i) a first finger engaging said first shoulder;

(ii) a second finger engaging said third shoulder; and

(iii) a contact portion in electrical contact with said first electrical contact on said first surface of said LED; and

(e) a second conductive spring clip having;

(i) a first finger engaging said second shoulder;

(ii) a second finger engaging said fourth shoulder; and

(iii) a contact portion in electrical contact with said second electrical contact on said first surface of said LED.

2. A surface mounted LED package as recited in claim 1 wherein said light emitting portion of said LED does not touch said lens.

3. A surface mounted LED package as recited in claim 1 wherein said light emitting portion of said LED touches said lens.

4. A surface mounted LED package as recited in claim 1 wherein said passageway comprises:

(a) a main passageway sized, shaped, and positioned to receive said lens;

(b) a counterbore sized, shaped, and positioned to secure said lens; and

(c) a flat portion sized, shaped, and positioned to prevent rotation of said lens.

5. A surface mounted LED packaged as recited in claim 3 wherein said passageway has a cross section sized and shaped to accept said lens.

6. A surface mounted LED package as recited in claim 1 wherein:

(a) a first slot is located in said second surface of said housing extending to said fourth surface of said housing;

(b) said third shoulder is located in said first slot;

(c) a second slot is located in said second surface of said housing extending to said fourth surface of said housing; and

(d) said fourth shoulder is located in said second slot.

7. A surface mounted LED package as recited in claim 1 wherein:

(a) a ridge is located on said first surface of said housing extending from a point adjacent said fifth surface of said housing to a point adjacent said sixth surface of said housing and

(b) said first and second shoulders are located on said ridge.

8. A surface mounted LED package as recited in claim 7 wherein at least one foot is located on said first surface of said housing adjacent said third surface of said housing.

9. A surface mounted LED package as recited in claim 7 wherein:

(a) a first foot is located on said first surface of said housing adjacent said third and fifth surfaces of said housing and

(b) a second foot is located on said first surface of said housing adjacent said third and sixth surfaces of said housing.

10. A surface mounted LED package as recited in claim 1 wherein a plurality of lenses and a plurality of LEDs are mounted in a single package.