Template holder, target lens shape measuring device having the holder, and eyeglass lens processing apparatus having the device

A template holder that is used in measurement of a target shape of an eyeglass lens and that attaches at least one of a template and a dummy lens thereon, the holder comprising:

• a dummy lens attaching portion including:
• a fixing cup supporting portion having an insertion hole into which a basal end of a fixing cup fixing the dummy lens thereon is to be inserted;
• and
• a pressing member having a contact surface to be contacted with the basal end of the fixing cup;
• urging means for urging the pressing member to be moved in an urging direction;
• and
• moving means for moving the pressing member in a direction opposite from the urging direction against a urging force of the urging means when the dummy lens is to be attached or detached;
• and
• a holding arm holing the dummy lens attaching portion.

A target lens shape measuring device for measuring a target shape of an eyeglass lens, the device comprising:

• a template attaching portion including:
• a template placement portion, on which positioning pins to be inserted into small holes of the template are disposed, for placing the template along a measurement plane;
• a support shaft to be inserted into a central hole of the template, the support shaft being movable relative to the template placement portion to slide the template on and along the measurement plane;
• urging means for urging the support shaft to be moved in an urging direction;
• and
• moving means for moving the support shaft in a direction opposite from the urging direction against a urging force of the urging means when the template is to be attached or detached;
• and
• a holding arm holding the template attaching portion.

A target lens shape measuring device for measuring a target shape of an eyeglass lens, the device comprising:

• a dummy lens attaching portion including:
• a fixing cup supporting portion having an insertion hole into which a basal end of a fixing cup fixing the dummy lens thereon is to be inserted;
• and
• a pressing member having a contact surface to be contacted with the basal end of the fixing cup;
• urging means for urging the pressing member to be moved in an urging direction;
• and
• moving means for moving the pressing member in a direction opposite from the urging direction against a urging force of the urging means when the dummy lens is to be attached or detached;
• and
• a holding arm holing the dummy lens attaching portion.