Patent ID: 8951699
Filing Date: 2015-02-10
Classification: G03F

Abstract:
1. An adjustable photo-mask comprising: a casing having a base and a cover, wherein both of the base and the cover have a plurality of openings penetrating the base or the cover, wherein an axial direction of the openings of the base is defined as a ray-transmission direction, wherein the base further has a depression and a first coupling member, and wherein the cover further has a second coupling member rotatably coupling with the first coupling member for the cover to cover the depression or to reveal the depression; and a plate having two side frames and a plurality of shading bars, wherein the two side frames are arranged in parallel, wherein each of the two side frames has a first surface and a second surface, wherein a part of the plurality of shading bars links the first surfaces of the two side frames and another part of the plurality of shading bars links the second surfaces of the two side frames to form an insertion space between the parts of the plurality of shading bars, wherein the plurality of shading bars arranged on a same side of the two side frames are spaced to form a through hole between any adjacent two of the plurality of shading bars and communicating with the insertion space, wherein the plate is slideably received in the receiving room, and wherein the through holes and the plurality of openings totally or partially overlap in the ray-transmission direction.