Patent ID: 9703015
Date: 2017-07-11
CPC Classifications: G02B,G03F

Claim:
1. A photomask for an optical element array comprising: a first optical element having a bottom surface on a first surface including a first direction and a second direction that intersects the first direction; and a second optical element having a bottom surface on the first surface and arranged so as to abut on the first optical element along the first direction, wherein a light transmission rate distribution of the photomask along the first direction includes a first area in which the first optical element is to be formed, a second area in which the second optical element is to be formed, and a third area provided between the first area and the second area, wherein the light transmission rate distribution of the photomask along the first direction includes: wherein the light transmission rate distribution of the photomask along the first direction includes: the light transmission rate higher than a segment of light transmission rate connecting the second light transmission rate and the third light transmission rate in the third area.