2results about How to "Guaranteed Coupling Efficiency" patented technology

The optical module disclosed herein includes a circuit board, a substrate, a laser, an optical modulation chip, and a fiber array. The substrate surface is prone to rusting; therefore, a protective layer can be formed on the substrate surface. A first connecting plate is provided between the substrate and the fiber array. A first thermosetting interface layer is formed between the bottom surface of the first connecting plate and the protective layer, and a first photocurable interface layer is formed between the top surface of the first connecting plate and the fiber array. The first thermosetting interface layer increases the interfacial bonding energy between the protective layer and the first connecting plate, thereby increasing the adhesion between the substrate and the first connecting plate. The first photocurable interface layer is formed by low-temperature curing, thereby preventing the fiber array from deforming due to high temperatures. The first photocurable interface layer has a low shrinkage rate, preventing the fiber array from deforming due to stress, thereby reducing the optical path offset of the fiber array. The bottom and top surfaces of the first connecting plate form different interface layers, satisfying both the adhesion between the connecting plate and the protective layer and ensuring that the fiber array has a low optical path offset.

This utility model provides a fiber optic thermal printer for detecting label gaps, including a base, a cover, a core, a rubber roller, and a thermal sheet. The core has a receiver installed in a mounting groove and a transmitter installed outside the groove. The cover has a U-shaped light guide groove containing a fiber optic cable. The rubber roller is located in the mounting groove and adjacent to the thermal sheet. The thermal sheet and rubber roller face each other, forming a paper path. The paper path passes through the mounting groove. The light outlet is located inside the mounting groove, and the light inlet is located outside. The transmitter faces the light inlet, and the light outlet faces the receiver. In this invention, the detection light first bypasses the paper in the paper path, and then passes through the paper only once to detect edges and gaps, significantly reducing light loss and improving detection stability and print quality.