Patent ID: 8045279

Claim:
A glass lens manufactured by hardening a glass material supplied to a molding tool by cooling, comprising: a pair of optical functional portions having a common optical axis; a flange portion that is provided on a periphery of the pair of optical functional portions and comprises a pair of surfaces opposed to each other; and a marking portion that comprises at least one of a depressed shape or a projecting shape, and is integrally formed on at least one of the pair of surfaces, the marking portion extending along a radial direction such that the marking portion is configured to comprise a longitudinal shape in which the longitudinal direction of the marking portion is equal to the radial direction, the radial direction crossing the optical axis orthogonally, wherein the marking portion comprises an end portion in which a height or depth of the marking portion parallel to the optical axis varies as the marking portion extends along the radial direction, and a variation of the height or depth of the marking portion is set to prevent chipping of the marking portion which is caused by contact between the marking portion and the molding tool due to shrinkage of the glass material during cooling.