Light-emitting module having array of light sources, some aligned and others offset with array of lense structures

A light-emitting module comprising:

• a light-transmitting plate member having a first main surface and a second main surface opposite to the first main surface, the light-transmitting plate member including a plurality of unit regions arrayed one-dimensionally or two-dimensionally, the plurality of unit regions including at least one first unit region and a plurality of second unit regions;
• a plurality of lens structures provided in the second main surface of the light-transmitting plate member, each of the plurality of lens structures corresponding to respective one of the plurality of unit regions each of the plurality of lens structures including a first recess proximate the first main surface of the light-transmitting plate member and a second recess proximate the second main surface of the light-transmitting plate member;
• and
• a plurality of light sources provided at the first main surface of the light-transmitting plate member, each of the light sources corresponding to respective one of the plurality of unit regions and respective one of the first recesses,
• wherein in the plurality of second unit regions, an optical axis of the lens structure and an optical axis of the light source are coincident with each other in a plan view, and
• in the at least one first unit region, an optical axis of the lens structure is offset from an optical axis of the light source in the plan view.