Luminaire with reflector of adjustable rotation

• US 7,344,278 B2
• Filed: 02/22/2006
• Issued: 03/18/2008
• Est. Priority Date: 02/22/2006
• Status: Expired due to Fees

• Current Assignee: Retrofit Ood
• Original Assignee: Pilux & Danpex A.G.
• Inventors: Paravantsos, Antonios
• Primary Examiner(s): O'Shea; Sandra
• Assistant Examiner(s): Lee; Gunyoung T.
• Application Number:
  US11/359,350
• Publication Number:
  US 20070195531A1
• Time in Patent Office: 755 Days
• Field of Search: 362282-284, 362322-324, 362/319, 362/449, 362/222, 362/224
• US Class Current: 362/283
• 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 14/04 by movement of reflectors in vehicle head lamps F21S41/675
• CPC Class Codes: F21V 17/02 with provision for adjustment F21V17/04 - F21V17/08 take precedence
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes
• CPC Class Codes: F21Y 2113/00 Combination of light sources

Abstract

Luminaire with reflector of adjustable rotation comprises a luminaire housing, a reflector received in the housing and an assembled component at ends of reflector. Each longitudinal end of the luminaire has a recess and a projection on internal surface, the recess defining a circular arc, with center as longitudinal axis of a fluorescent lamp. Each assembled component has first and second axially outwardly protruding parts, cooperating with an associated recess and projection, respectively. The first part is received in the recess for guiding rotation of the reflector. The second part has a circular arced, toothed surface concentric with its associated recess, and cooperating with an associated projection that engages a respective one of a plurality of cavities of the toothed surface, to secure the reflector in a respective one of a plurality of rotational positions. Locations of recess and projection can be interchanged with locations of first and second parts.

Claims

1. A luminaire having a lamp and a reflector that is rotational about an axis of rotation, comprising:

a) a luminaire housing with two longitudinal ends;

b) a lamp with a longitudinal axis and a first and second end;

c) a reflector for a fluorescent lamp;

the reflector being received in the luminaire and having two longitudinal ends;

d) an interior of a longitudinal end of a luminaire housing and a longitudinal end of the reflector having first and second arrangements, respectively, or second and first arrangements, respectively;

i) the first arrangement comprising;

(1) a circular arc-shaped recess defined between a pair of spaced arc-shaped walls;

the recess opening axially with respect to said longitudinal axis; and

(2) a projection;

ii) the second arrangement comprising;

(1) first and second parts protruding axially with respect to said longitudinal axis; and

(2) the first part being received in an associated recess of the first arrangement; and

(3) the second part having a circular arced, toothed surface concentric with said associated recess;

e) the recess being for guiding rotation of the reflector after receiving the first part; and

the associated projection engaging a respective one of a plurality of cavities of the toothed surface to secure the reflector in a respective one of a plurality of rotational positions.

2. The luminaire of claim 1, wherein said axis of rotation is spaced from the reflector to allow said axis of rotation to pass through the first and second ends of the lamp.

3. The luminaire of claim 2, wherein said reflector is the only reflector in the luminaire associated with the fluorescent lamp.

4. The luminaire of claim 2, wherein each axially outwardly projecting past is parallel to said longitudinal axis.

5. The luminaire of claim 2, wherein the reflector comprises a single integrated part.

6. The luminaire of claim 2, wherein the first and second parts of the assembled component comprises a single integrated part.

7. The luminaire of claim 2, wherein

a) the cavities of the toothed surface have a saw-tooth pattern;

and

b) a portion of the projection that engages a cavity of the toothed surface substantially conforms to the shape of the cavity.

8. The luminaire of claim 1, wherein said reflector is the only reflector in the luminaire associated with the fluorescent lamp.

9. The luminaire of claim 3, wherein said reflector is parabolic in shape.

10. A luminaire having a lamp and a reflector that is rotational about a longitudinal axis of rotation, comprising:

a) a luminaire housing with two longitudinal ends;

b) a parabolic reflector for a fluorescent lamp;

the reflector being received in the luminaire and having two longitudinal ends; and

c) an interior of a longitudinal end of a luminaire housing and a longitudinal end of the parabolic reflector having first and second arrangements, respectively, or second and first arrangements, respectively;

i) the first arrangement comprising;

(1) a recess opening being at a distance from the said longitudinal axis, having a center on said longitudinal axis and radius equal to vertical distance of a recess middle from the longitudinal axis;

the recess defining a circular arc; and

(2) a projection;

ii) the second arrangement comprising;

(1) first and second parts protruding parallel to said longitudinal axis; and

(2) the first part defining a circular arc of a circle similar to that of the circular arc of an associated recess of the first arrangement and being received in the associated recess; and

(3) the second part having a circular arced, toothed surface concentric with said associated recess;

d) the recess being for guiding rotation of the parabolic reflector after receiving the first part; and

the projection of the first arrangement engaging a respective one of a plurality of cavities of the toothed surface to secure the reflector in a respective one of a plurality of rotational positions.

11. The luminaire of claim 10, wherein each axially outwardly projecting part is parallel to said longitudinal axis.

12. The luminaire of claim 10, wherein the reflector comprises a single integrated part.

13. The luminaire of claim 10, wherein the first and second parts of the assembled component comprises a single integrated part.

14. The luminaire of claim 10, wherein

a) the cavities of the toothed surface have a saw-tooth pattern;

and

b) a portion of the projection that engages a cavity of the toothed surface substantially conforms to the shape of the cavity.

15. A luminaire having a lamp and a reflector that is rotational about a longitudinal axis of rotation, comprising:

a) a luminaire housing with two longitudinal ends;

b) a parabolic reflector for a fluorescent lamp;

the reflector being received in the luminaire and having two longitudinal ends;

c) each longitudinal end of the luminaire housing having a recess and a projection on an internal surface;

the recess being at a distance from the said longitudinal axis, having a center on said longitudinal axis and radius equal to vertical distance of a recess middle from the longitudinal axis;

the recess defining a circular arc;

d) each longitudinal end of the reflector having an assembled component cooperating with an associated recess and projection of the luminaire;

each assembled component having first and second parts protruding parallel to said longitudinal axis;

the first part defining a circular arc of a circle similar to that of the circular arc of an associated recess of the luminaire;

the second part having a circular arced, toothed surface concentric with said associated recess; and

e) the recess being for guiding rotation of the parabolic reflector after receiving the first part; and

the associated projection of the first arrangement engaging a respective one of a plurality of cavities of the toothed surface to secure the reflector in a respective one of a plurality of rotational positions.

16. The luminaire of claim 15, wherein each axially outwardly projecting part is parallel to said longitudinal axis.

17. The luminaire of claim 15, wherein the reflector comprises a single integrated part.

18. The luminaire of claim 15, wherein the first and second parts of the assembled component comprises a single integrated part.

19. The luminaire of claim 15, wherein

a) the cavities of the toothed surface have a in saw-tooth pattern;

and

b) a portion of the projection that engages a cavity of the toothed surface substantially conforms to the shape of the cavity.