Method for manufacturing semi-finished blank for varifocal lens

A method for manufacturing a semi-finished blank for a varifocal liquid crystal lens constituted such that a liquid crystal holder is disposed between the front of a first substrate and the rear of a second substrate that is opposite the first substrate, comprising:

• an adhesive agent coating step of coating the front of a first substrate and/or the rear of a second substrate with an adhesive agent, leaving an adhesive agent-free region that surrounds the liquid crystal holder;
• a pressure reduction step of reducing the pressure inside a sealed vessel that holds the first substrate and the second substrate, with respect to atmospheric pressure;
• an affixing step of affixing the second substrate over the front of the first substrate in the reduced pressure environment produced in the pressure reduction step;
• a standby step of continuing the affixed state between the first substrate and the second substrate for a specific length of time in the reduced pressure environment produced in the pressure reduction step after the substrates have been affixed;
• and
• a pressure restoration step of restoring the pressure of the sealed vessel after the standby step.