Laminated base material and optical device using same

The invention provides a laminated base material. The laminated base material comprises a first base material and a second base material, the first base material and the second base material are bonded through a liquid curing adhesive, the first base material comprises a first bonding surface, the second base material comprises a second bonding surface, the first bonding surface and the second bonding surface are oppositely arranged, the liquid curing adhesive is arranged between the first bonding surface and the second bonding surface, the laminated base material further comprises a plurality of dredging grooves, the first bonding surface is provided with the dredging grooves, the dredging grooves are sunken inwards relative to the first bonding surface, each dredging groove is at least connected with another dredging groove, and the dredging grooves do not extend to the outer side edge of the first bonding surface. The invention also provides an optical device using the laminated base material. 本发明提供一种贴合基材，