Lens array, lens array laminate body , lens array manufacturing method, lens array laminate body manufacturing method, and lens unit manufacturing method

A lens array manufacturing method, which comprises:

• supplying a droplet of melting glass to a first die including a plurality of first optical portion transfer surfaces corresponding to first optical surfaces of a plurality of lens portions, each of the plurality of first optical portion transfer surfaces having an optical axis, a first support portion transfer surface corresponding to a first surface of a support portion for integrally connecting the plurality of lens portions in a state of being two-dimensionally aligned, and a fitting portion transfer surface corresponding to a convex fitting portion which is non-optical and is surrounded by the plurality of lens portions on a side opposite to a reference surface for joining which is provided at the support portion to protrude from the support portion and which is configured for positioning with respect to a non-mold holding device, the reference surface being a plane having a normal vector parallel to each optical axis;
• interposing the droplet of melting glass between the first die and a second die including a plurality of second optical portion transfer surfaces corresponding to the second optical surfaces of the plurality of lens portions and a second support portion transfer surface corresponding to a second surface of the support portion;
• and
• transferring shapes of the first and second optical portion transfer surfaces, the first and second support portion transfer surfaces, and the fitting portion transfer surface by pressing the second die onto the first die, thereby molding a lens array.