Analysis of the Core Principles and Applications of Laser Lens Systems (Part 1)

The term "laser lens" is a composite concept. It typically does not refer to a single component, but rather a system that integrates a laser emitter and optical lenses.

Its core principle is as follows: A laser generator emits laser light of a specific wavelength, which is then shaped, expanded, focused, or collimated through a specially designed lens assembly. Finally, the laser light is projected onto the target area to achieve various specific functions.

Below, we will gain an in-depth understanding from the following aspects:

Laser Diode: Serving as the light source, it generates laser light. Common types include infrared lasers, red lasers (e.g., 650nm), and blue lasers (e.g., 450nm), with power ranging from milliwatts to watts.

Optical Lens Assembly: As the core of the technology, it determines the shape and quality of the laser beam. It usually includes:

- Collimating Lens: Converts the divergent light emitted by the laser into a parallel beam (collimated light). This is its most basic function.

- Beam Expander: Increases the diameter of the laser beam while reducing its divergence angle, enabling a smaller light spot and more concentrated energy (over long distances).

- Focusing Lens: Concentrates the parallel laser beam into an extremely small point to obtain extremely high power density (e.g., for cutting and engraving purposes).

Diffractive Optical Element (DOE) / Holographic Optical Element (HOE): These are advanced components that can split a single laser beam into tens of thousands of beams (for structured light measurement) or shape it into specific patterns (e.g., linear, circular, grid-like, or even custom patterns).

For more information, please refer to the news about PART 2.