Laminated glass

A laminated glass comprising:

• a first glass plate;
• a second glass plate;
• and
• an interlayer film held between the first and second glass plates, wherein
• when a predetermined frequency between 60 GHz and 100 GHz is represented by F [GHz];
• a relative dielectric constant of the first glass plate at the frequency F is represented by εg1;
• a relative dielectric constant of the second glass plate at the frequency F is represented by εg2, a relative dielectric constant of a first interlayer film provided in a first region of the interlayer film is represented by εm1;
• a reflection coefficient at an interface between the first glass plate and the first interlayer film when an electromagnetic wave having the frequency F is incident on the laminated glass is represented by Γ1;
• and a reflection coefficient at an interface between the second glass plate and the first interlayer film when the electromagnetic wave having the frequency F is incident on the laminated glass is represented by Γ2, below-shown relations are satisfied:
• Γ
• 1
• =
• ❘
• "\[LeftBracketingBar]"
• ε
• g
• ⁢
• 1
• -
• ε
• m
• ⁢
• 1
• ❘
• "\[RightBracketingBar]"
• ε
• g
• ⁢
• 1
• +
• ε
• m
• ⁢
• 1
• ⁢
• Γ
• 2
• =
• ❘
• "\[LeftBracketingBar]"
• ε
• g
• ⁢
• 2
• -
• ε
• m
• ⁢
• 1
• ❘
• "\[RightBracketingBar]"
• ε
• g
• ⁢
• 2
• +
• ε
• m
• ⁢
• 1
• ⁢
• and
• ⁢
• 0.
• ≤
• Γ
• 1
• ≤
• 0.2
• ;
• and
• ⁢
• 0.
• ≤
• Γ
• 2
• ≤
• 0.2
• ,
• and
• wherein the first interlayer film comprises (a) at least one material selected from the group consisting of polyvinyl butyral, ethylene vinyl acetate, a cycloolefin polymer, a urethane resin, and a polyvinylidene fluoride resin (PVDF) and (b) at least one filler selected from the group consisting of Al2O3, TiO2, SiO2, ZrO2, YSZ, SnO2, forsterite, cordierite, steatite, barium magnesium-acid niobate, barium neodymium titanate, lead zirconate titanate (PZT), borosilicate glass, non-alkali glass, glass fiber, soda lime glass, phosphate glass, BaTiO3, SrTiO3, BaSrTiO3, aluminum nitride, and MnO2.