Light Source Device with Integrated Glass Cover Damage Detection

The patent implements a feedback mechanism by forming detecting circuits directly on the light permeable member (glass cover). These detecting circuits include conductive patterns that create electrical pathways across the glass surface, allowing the system to monitor the integrity of the light permeable member in real-time. When delamination or damage occurs, the electrical continuity is disrupted, triggering a feedback signal to the control circuit, which then shuts down the light emitting units to prevent eye harm.

The patent introduces an intermediary conducting layer (such as ITO - indium tin oxide) on the light permeable member that serves as both an optical transparent layer and an electrical conductor. This intermediary layer enables the formation of detecting circuits without compromising the light transmission function of the glass cover, allowing simultaneous achievement of optical performance and damage detection capability.

The patent merges the detecting circuits with the light permeable member by forming conductive patterns directly on the glass cover surface using techniques such as sputtering, evaporation, or screen printing. This integration eliminates the need for separate detection components and reduces the number of assembly steps. The conducting layer is deposited during the glass manufacturing process or as a subsequent layer, creating a unified structure that combines optical and detection functions.

The light permeable member is designed to serve multiple functions simultaneously: it acts as the protective glass cover, the light transmission medium, and the substrate for the detecting circuits. The conducting layer on the glass cover provides both optical transparency and electrical conductivity, enabling the glass cover to function as both an optical component and a sensing element, thereby reducing overall device complexity.