Wafer-level lens array, method of manufacturing wafer-level lens array, lens module and imaging unit

A method of manufacturing a wafer-level lens array including a substrate unit and a plurality of lens units that is arranged on the substrate unit, comprising:

• forming the substrate unit by dividing a block made of a forming material;
• and
• integrally forming the lens units that are made of a resin having substantially the same optical characteristics as the forming material of the substrate unit with the substrate unit;
• integrally forming ribs with a sufficient thickness to prevent the warp of the substrate unit in a region of the substrate unit other than the portions in which the lens units are formed,
• wherein, before the lens units are formed integrally with the substrate unit, the resin is supplied to a plurality of lens transfer portions of a mold for forming the plurality of lens units, and
• before the lens units are formed integrally with the substrate unit, an amount of resin corresponding to one lens unit is supplied to each of the plurality of lens transfer portions.