Light-Emitting Apparatus Merging LED Chips Into Single Optical System

The patent merges multiple individual optical systems into a single shared optical system. The card-shaped substrate with multiple LED chips is positioned at the focal line of a parabolic reflector, allowing all chips to utilize the same reflector and lens assembly. This eliminates the need for separate optical systems for each LED chip, thereby reducing the overall module area while maintaining high optical output from multiple chips.

The optical system is designed to serve multiple LED chips simultaneously rather than being dedicated to a single chip. The parabolic reflector and lens assembly function as a universal optical system that can handle light from any or all of the multiple LED chips mounted on the substrate, increasing system efficiency and reducing the area required per chip.

Instead of providing separate optical systems for each LED chip, the patent combines multiple chips into a single optical system. The card-shaped substrate holding multiple LED chips is positioned at the focal line of one parabolic reflector, which directs light from all chips through a single lens assembly. This merging approach maintains effective light extraction while dramatically reducing the number of optical components needed.

The patent transitions from a three-dimensional arrangement where each chip has its own optical system to a two-dimensional planar arrangement where multiple chips share a common optical path. By positioning all LED chips on a flat card-shaped substrate at the focal line of the parabolic reflector, the system achieves efficient light extraction without the vertical stacking of individual optical assemblies, thereby reducing overall device complexity.