Skin Diagnosing Device Head with Nested Optical Components

The patent implements nesting by placing the camera inside the hollow cylindrical structure of the laser light source, and positioning multiple light sources and cameras within a compact stacked arrangement. This nested configuration allows comprehensive diagnostic components to be housed in a small volume, resolving the contradiction between diagnostic capability and device size.

The patent transitions from planar arrangement to three-dimensional stacked configuration, with components arranged vertically in layers (light sources, cameras, and processing units stacked along the optical axis). This dimensional change enables efficient space utilization, allowing multiple diagnostic components to coexist in a compact footprint without compromising diagnostic capability.

The patent employs asymmetric angular positioning of light sources and cameras relative to the skin surface normal. Light sources are positioned at specific angles (e.g., 45 degrees) rather than perpendicular to the surface, and cameras are positioned at different angles to capture reflected light paths. This asymmetric arrangement prevents direct reflection from entering the camera while maintaining compact device size.

The patent introduces optical elements such as beam splitters, mirrors, or diffusers as intermediaries between the light sources and cameras. These intermediaries manipulate the light paths to separate the illumination path from the detection path, preventing reflected light from directly entering the camera sensor while maintaining close proximity to the skin surface for compact design.

The patent designs multi-functional components that serve multiple purposes. For example, the same optical element serves both as a beam splitter for separating light paths and as a structural support element. The housing structure simultaneously provides mechanical support, optical alignment, and thermal management. This multi-functionality reduces the number of separate components needed, lowering device complexity while maintaining measurement accuracy.

The patent merges multiple functions into integrated component assemblies. Light sources, cameras, and their mounting structures are combined into integrated modules where mechanical and optical functions are unified. This merging reduces the total number of discrete components and simplifies the overall device architecture while maintaining the precise component arrangement needed to avoid reflected light interference.