To provide a light-transmissive substrate and a transmission type optical member that can reduce adverse influence of generated stray light.

A Fresnel lens sheet 110 comprises a glass substrate 10, a Fresnel lens film 11 arranged on a light projection surface side of the glass substrate 10, a functional film 12 arranged on a light incidence side of the glass substrate 100, a colored layer 50 having light absorptivity, etc. The glass substrate 10 has a portion of its end portion made into a mirror surface. The colored layer 50 is a light absorption layer which absorbs ≥95% of visible light having a wavelength range of 400 to 700 nm and provided to cover the end portion of the glass substrate 10.