Lighting device

1. A lighting device, comprising:

a lamp; and

a reflector located in a light emitting direction of the lamp and disposed distant from the lamp for reflecting a light emitted from the lamp, wherein the reflector comprises at least one reflective sheet and a coating partially formed on the at least one reflective sheet, wherein the coating has a shape, and the light is reflected by the coating to form a lighting pattern corresponding to the shape.

2. The lighting device according to claim 1 , wherein the coating is formed by a reflective material, and the at least one reflective sheet has a reflectivity smaller or larger than a reflectivity of the coating.

3. The lighting device according to claim 1 , wherein the light-emitting surface of the lamp faces upward and is located under the reflector, the lamp provides a tapered light source with a tapered lighting pattern to the coating of the reflector, and a coating area of the coating is within an irradiation area of the tapered light source.

4. The lighting device according to claim 3 , wherein the irradiation area substantially corresponds to a light-emitting angle of the light source.

5. The lighting device according to claim 1 , wherein the reflector further comprises a shaft on which the at least one reflective sheet is rotatably disposed.

6. The lighting device according to claim 1 , wherein the at least one reflective sheet comprises a first reflective sheet, a second reflective sheet, and a shaft on which the first reflective sheet and the second reflective sheet are rotatably disposed.

7. The lighting device according to claim 6 , wherein the first reflective sheet and the second reflective sheet are respectively rotated for a predetermined angle with respect to the shaft.

8. The lighting device according to claim 6 , wherein the coating is located on a combination of the first reflective sheet and the second reflective sheet.

9. The lighting device according to claim 1 , wherein the reflector further comprises a light shielding element located in a side direction of the reflector for shielding a side light projected to the side direction of the reflector by the lamp.

10. The lighting device according to claim 9 , wherein the light shielding element has a butterfly shape having two tips facing upward, and two wings of the light shielding element are respectively connected to a first reflective sheet and a second reflective sheet of the reflector and match the shapes of the first reflective sheet and the second reflective sheet, the light shielding element is formed by a material with low reflectivity, a dark colored material or a light absorbent material.

11. The lighting device according to claim 1 , further comprising a supporting member, wherein the reflector and the lamp are disposed on the supporting member.

12. The lighting device according to claim 11 , further comprising a frame disposed on the supporting member and pivotally connected to the lamp.

13. The lighting device according to claim 1 , wherein the reflector is wing-shaped.

14. The lighting device according to claim 1 , wherein the reflector has a curved surface or a bevel for reflecting the light.

15. The lighting device according to claim 1 , wherein the shape includes a long strip or a widened long strip.

16. The lighting device according to claim 1 , wherein 50% of the light intensity of the lamp is within 1.75 times of an installation height of the lamp along a vertical axis to generate an elliptical lighting pattern.

17. The lighting device according to claim 1 , wherein 50% of the light intensity of the lamp is within 1.75-2.75 times of an installation height of the lamp along a vertical axis to generate an elliptical lighting pattern.

18. The lighting device according to claim 1 , wherein the coating is formed by a white lacquer, a non-white lacquer or a multi-color lacquer.