Device for applying a coating on a lens, the device including means for inflating a membrane
View Patent ↗A device for applying a coating film ( 63 ) on a face of a lens, the film previously being placed on the face concerned of the lens, includes a seat ( 40 ) suitable for receiving the lens, a membrane ( 62 ) including a peripheral fixing portion ( 62 A) and an inflatable portion ( 62 B), and an inflater element ( 61 ) for inflating the membrane towards the lens seat. The inflater element include a first plate ( 66 ) and a second plate ( 65 ) with the membrane ( 62 ) placed between them, the first plate presenting as a setback a pressurization chamber ( 80 ) connected to a source ( 93 ) of compressed gas, and the second plate presenting a protrusion opening ( 71 ), the two plates being mounted to move relative to each other between an open configuration and a closed configuration.
1. A device for applying a coating film ( 63 ) on a face ( 108 ) of a lens ( 100 ), the film previously being placed on the face concerned of the lens, the device comprising:
a seat ( 40 ) suitable for receiving the lens ( 100 );
a membrane ( 62 ) including a peripheral fixing portion ( 62 A) and an inflatable portion ( 62 B); and
inflater means ( 61 ) for inflating the membrane ( 62 ) towards the seat ( 40 ) of the lens ( 100 );
the device being characterized in that the inflater means ( 61 ) comprise a first plate ( 66 ) and a second plate ( 65 ) between which the membrane ( 62 ) is placed, the first plate presenting a setback pressurization chamber ( 80 ) connected to a source ( 93 ) of compressed gas, and the second plate presenting a protrusion opening ( 71 ), and in that it includes mechanical connection means ( 76 , 77 , A 6 ) connecting the plates ( 65 , 66 ) together while enabling them to move relative to each other between an open configuration in which the two plates are spaced apart from each other so as to enable the membrane ( 62 ) to be inserted or replaced, and a closed configuration in which the two plates ( 65 , 66 ) are placed one against the other in such a manner that firstly the pressurization chamber ( 80 ) of the first plate ( 65 ) and the protrusion opening ( 71 ) of the second plate ( 66 ) are situated facing the inflatable portion ( 62 B) of the membrane ( 62 ), and secondly the peripheral fixing portion ( 62 A) of the membrane ( 62 ) is held by being pinched between the two plates ( 65 , 66 ), the mechanical connection means ( 76 , 77 , A 6 ) of the plates ( 65 , 66 ) being such that the mechanical connection they provide is conserved in the open configuration.
2. A device according to claim 1 , characterized in that the two plates ( 65 , 66 ) are mounted to pivot relative to each other between their open and closed configurations.
3. A device according to claim 1 , characterized in that it includes locking and clamping means ( 83 , 84 ) for locking and clamping the plates in their closed configuration.
4. A device according to claim 3 , characterized in that the locking and clamping means ( 83 , 84 ) are distinct from the mechanical connection means ( 76 , 77 , A 6 ) of the plates ( 65 , 66 ).
5. A device according to claim 1 , characterized in that the protrusion opening ( 71 ) of the second plate ( 65 ) flares towards the membrane ( 62 ).
6. A device according to claim 5 , characterized in that the protrusion opening ( 71 ) of the second plate ( 65 ) is frustoconical.
7. A device according to claim 1 , characterized in that the protrusion opening ( 71 ) is formed in a removable insert ( 68 ) fitted on the second plate ( 65 ).
8. A device according to claim 7 , characterized in that it includes a plurality of inserts ( 68 ) presenting protrusion openings ( 71 ) of different widths.
9. A device according to claim 1 , characterized in that the first plate ( 66 ) includes a glazed porthole ( 70 ) defining at least part of the pressurization chamber ( 80 ) and suitable for transmitting ultraviolet radiation (UV).
10. A device according to claim 1 , characterized in that the two plates ( 65 , 66 ) form an extractable subassembly ( 61 ).
11. A device according to claim 10 , characterized in that the extractable subassembly ( 61 ) formed by the two plates ( 65 , 66 ) is mounted on slides ( 88 ) in such a manner as to be inserted and extracted into and from an associated reception housing ( 87 ) like a drawer.
12. A device according to claim 2 , characterized in that it includes locking and clamping means ( 83 , 84 ) for locking and clamping the plates in their closed configuration.
13. A device according to claim 2 , characterized in that the protrusion opening ( 71 ) of the second plate ( 65 ) flares towards the membrane ( 62 ).
14. A device according to claim 3 , characterized in that the protrusion opening ( 71 ) of the second plate ( 65 ) flares towards the membrane ( 62 ).
15. A device according to claim 4 , characterized in that the protrusion opening ( 71 ) of the second plate ( 65 ) flares towards the membrane ( 62 ).
16. A device according to claim 2 , characterized in that the protrusion opening ( 71 ) is formed in a removable insert ( 68 ) fitted on the second plate ( 65 ).
17. A device according to claim 3 , characterized in that the protrusion opening ( 71 ) is formed in a removable insert ( 68 ) fitted on the second plate ( 65 ).
18. A device according to claim 4 , characterized in that the protrusion opening ( 71 ) is formed in a removable insert ( 68 ) fitted on the second plate ( 65 ).
19. A device according to claim 5 , characterized in that the protrusion opening ( 71 ) is formed in a removable insert ( 68 ) fitted on the second plate ( 65 ).
20. A device according to claim 6 , characterized in that the protrusion opening ( 71 ) is formed in a removable insert ( 68 ) fitted on the second plate ( 65 ).