Light modulator, optical module, and image display apparatus

A light modulator comprising

• a substrate providing an electro-optical effect,
• wherein the substrate is provided with a first optical waveguide that a first light flux enters and a second optical waveguide that a second light flux having a wavelength longer than a wavelength of the first light flux enters,
• the first optical waveguide includes
• a first modulation section that modulates intensity of the first light flux,
• a first exit section that allows the first light flux to exit out of the first optical waveguide, and
• a first linkage section that links the first modulation section with the first exit section,
• the second optical waveguide includes
• a second modulation section that modulates intensity of the second light flux,
• a second exit section that allows the second light flux to exit out of the second optical waveguide, and
• a second linkage section that links the second modulation section with the second exit section, and
• L1<L2 and S1>S2 are satisfied,
• where L1 represents a length of the first modulation section in a longitudinal direction thereof,
• an imaginary straight line parallel to the longitudinal direction of the first modulation section and passing through a portion where the first modulation section is connected to the first linkage section is defined as a first line, and S1 represents a distance between the first line and the first exit section,
• L2 represents a length of the second modulation section in a direction parallel to the first line, and
• an imaginary straight line parallel to the first line and passing through a portion where the second modulation section is connected to the second linkage section is defined as a second line, and S2 represents a distance between the second line and the second exit section.