Optical coating equipment and ultraviolet irradiative device

1. An optical coating equipment, comprising:

a delivery device delivering a film;

a coater head coating an optical liquid on the film;

an ultraviolet irradiative device comprising:

a board assembly;

an ultraviolet light source; and

a sliding rail, the board assembly sliding on the sliding rail, wherein the film is delivered through the ultraviolet irradiative device, the board assembly slidably adjusts an irradiated area on the film to control an irradiative dose which irradiates from the ultraviolet irradiative device to the film.

2. The optical coating equipment as claimed in claim 1 , wherein the board assembly further comprises a plurality of covering boards, slidably disposed on the sliding rail.

3. The optical coating equipment as claimed in claim 1 , wherein the ultraviolet irradiative device further comprises a cooling unit, disposed in the board assembly, to cool the temperature on the top of the film.

4. The optical coating equipment as claimed in claim 1 , wherein the ultraviolet irradiative device further comprises a cooling unit, disposed between the film and the board assembly, to cool the top of the film.

5. The optical coating equipment as claimed in claim 4 , wherein the cooling unit further comprises a plurality of cooling pipes, to regulate the temperature on the top of the film.

6. The optical coating equipment as claimed in claim 1 , wherein the ultraviolet irradiative device further comprises a cooling unit, disposed under the film, to cool the underside of the film.

7. The optical coating equipment as claimed in claim 6 , wherein the cooling unit is a cooling plate.

8. The optical coating equipment as claimed in claim 1 , wherein the board assembly is movably disposed in the ultraviolet irradiative device, moving reciprocatingly between the film and the ultraviolet light source.

9. The optical coating equipment as claimed in claim 8 , wherein the board assembly further comprises:

a plurality of first covering boards securely disposed on the board assembly; and

a plurality of second covering boards adjustably disposed on the board assembly,

wherein the first covering boards and the second covering boards adjust the irradiated area on the film to control the irradiative dose which irradiates from the ultraviolet irradiative device to the film.

10. An ultraviolet irradiative device for irradiating a film, comprising:

a body;

an ultraviolet light source disposed on the body; and

a board assembly disposed under the ultraviolet light source,comprising:

a sliding rail; and

a plurality of covering boards disposed on the sliding rail, wherein the covering boards slide on the sliding rail to adjust an irradiated area on the film to control an irradiative dose which irradiates from the ultraviolet irradiative device to the film.

11. The ultraviolet irradiative device as claimed in claim 10 , wherein the ultraviolet irradiative device further comprises a cooling unit, disposed in the board assembly, to cool the top of the film.

12. The ultraviolet irradiative device as claimed in claim 10 , wherein the ultraviolet irradiative device further comprising a cooling unit, disposed between the film and the board assembly, to cool the top of the film.

13. The ultraviolet irradiative device as claimed in claim 12 , wherein the cooling unit further comprises a plurality of cooling pipes, to regulate the temperature on the top of the film.

14. The ultraviolet irradiative device as claimed in claim 10 , wherein the ultraviolet irradiative device further comprises a cooling unit, disposed under the film, to cool the underside of the film.

15. The ultraviolet irradiative device as claimed in claim 14 , wherein the cooling unit is a cooling plate.

16. The ultraviolet irradiative device as claimed in claim 10 , wherein the board assembly is movably disposed in the body, moving reciprocatingly between the film and the ultraviolet light source.

17. The ultraviolet irradiative device as claimed in claim 16 , wherein the board assembly further comprises:

a plurality of first covering boards securely disposed on the board assembly; and

a plurality of second covering boards adjustably disposed on the board assembly,

wherein the first boards and the second boards adjust the irradiated area on the film to control the irradiative dose which irradiates from the ultraviolet irradiative dose to the film.