Polishing work holder

A polishing work holder, comprising:

• a holder body rotatably supported by a housing and having a suction hole opened at the end face;
• a lens receptacle having a hole communicated with the suction hole to hold a lens through suction at one end surface;
• a spherical body disposed between the recess portion of the holder body and the lens receptacle so as to contact the other end face and for tiltably and movably supporting the lens receptacle relative to the axis of the holder body;
• a fixing ring concentrically secured to the holder body and engageable with an outer periphery face of the lens or an outer periphery face of the lens receptacle so as to limit the tilting and the diametrical moving of the lens;
• and means for communicating the suction hole of the holder body with the hole of the lens receptacle;
• wherein the holder body, the spherical body and the lens receptacle are arranged in series so that respective end faces of the holder body, spherical body and lens receptacle are in contact with each other.

A polishing work holder, comprising:

• a holder body rotatably supported by a housing and having a recess portion formed on a rotating shaft of one end face thereof and a suction hole opened at the end face;
• a lens receptacle having a hole communicated with the suction hole to hold a lens through suction at one end surface;
• a spherical body disposed between the recess portion of the holder body and the lens receptacle so as to contact the another end face and for tiltably and movably supporting the lens receptacle relative to the axis of the holder body;
• a fixing ring concentrically secured to the holder body and engageable with an outer periphery face of the lens or an outer periphery face of the lens receptacle so as to limit the tilting and the diametrical moving of the lens;
• and an elastic member disposed between the holder body and the lens receptacle.

A polishing work holder for holding a lens, comprising:

• a holder body having an end surface;
• a lens receptacle having a backside, at least one communicating through-hole and a lens receiving portion;
• supporting means for tiltably and movably supporting the lens receptacle relative to the holder body;
• limiting means for limiting the tilt and movement of the lens receptacle;
• and suction applying means for applying suction through each communicating through-hole to hold a lens to be polished against the lens receiving portion.