Interlayer for laminated glass, and laminated glass

An interlayer film for a laminated glass having a large number of recesses on at least one surface,

• the interlayer film for a laminated glass having a thickness T (μm) measured in conformity with JIS K-6732 (1996) at a thickest portion and a maximum height roughness Ry (μm) measured in conformity with JIS B-0601 (1994) at & the thickest portion,
• wherein the thickness T and the maximum height roughness Ry satisfy the following expressions (1) and (1′):
• Ry(ave)≥0.020×T+16.6 (1),
• T≥850 (1′),
• wherein Ry (ave) is an average of the maximum height roughness Ry on a first surface of the interlayer film for a laminated glass and the maximum height roughness Ry on a second surface of the interlayer film for a laminated glass, and
• wherein the thickness T and the maximum height roughness Ry further satisfy the following expression (3):
• Ry(max)≤0.0195×T+33.2 (3),
• wherein Ry (max) is the larger of the maximum height roughness Ry on the first surface of the interlayer film for a laminated glass and the maximum height roughness Ry on the second surface of the interlayer film for a laminated glass.