Optical grade surfacing device

Optical grade surfacing tool, including:

• a rigid support (11;
• 111) having a transverse end surface (15;
• 115);
• an elastically compressible interface (12;
• 112) attached to the rigid support (11;
• 111) and having a first transverse end surface (16;
• 116), a second transverse end surface (17;
• 117) and a lateral surface (18;
• 118) extending from the periphery of the first end surface (16;
• 116) to the periphery of the second end surface (17;
• 117), said first end surface (16;
• 116) of the interface (12;
• 112) being pressed against and covering said end surface (15;
• 115) of the rigid support (11;
• 111);
• and
• a flexible pad (13;
• 113) adapted to be pressed against a surface (30) to be worked and that is pressed against and covers at least in part the second end surface (17;
• 117) of the interface (12;
• 112) on the opposite side to and in line with said end surface (15;
• 115) of the rigid support (11;
• 111);
• wherein a flexible rim (14;
• 114) is pressed against and partly covers the lateral surface (18;
• 118) of the interface, said rim (14;
• 114) extending from the periphery of said pad (13;
• 113) to a free edge (20;
• 120), an annular portion (21;
• 121) of said lateral surface (18;
• 118) of the interface (12;
• 112) being free between said free edge (20;
• 120) of said rim (14;
• 114) and the first end surface (16;
• 116) of the interface (12;
• 112);
• wherein said first transverse end surface (16;
• 116) and said second transverse end surface (17;
• 117) of said interface are in an absence of loads generally parallel to one another, and wherein said lateral surface (18;
• 118) has an extent less than that of each of first transverse end surface (16;
• 116) and said second transverse end surface (17;
• 117);
• and
• wherein said flexible rim opposes lateral expansion of said interface.