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Optics - Light Pipes

Light pipes, also called waveguides, are used for optical coupling between light sources and detectors and enable uniform illumination in a variety of applications. The LPR3-1000-2000DP is a light pipe designed and manufactured by Foreoptics, Inc., specifically for fiber optics applications. The product provides both low-loss circular-to-rectangular-mode transformation and excellent field of illumination. This article discusses the application field and working principle of the LPR3-1000-2000DP.

Application Field

The LPR3-1000-2000DP is a light pipe intended for fiber optic applications, such as imaging, power and signal transmission, night vision, medical imaging, and automotive systems. It consists of a precision reflector coupled to an optical fiber or waveguide which has an exit circular beam of 0.4 mm in diameter. It has a very wide angle acceptance of up to 130° when used with multimode fibers, ensuring uniform field of illumination over a wide range of applications.

The product also has a very low-loss circular-to-rectangular-mode transformation due to its use of a modified Dalmard-type mirror. As such, it can be used for fiber optics imaging systems, such as medical imaging systems and automotive night vision systems. Its integrated collimator means that it requires no additional elements for power and signal transmission.

Working Principle

The LPR3-1000-2000DP works on the principle of mirrored optical waveguides. The waveguide consists of a reflective mirror, which is connected to an optical fiber or wave guide, and a parabolic reflector, which is used to couple the light into the fiber or waveguide. The reflective mirror is designed to reflect most of the incoming light into the fiber or waveguide.

The parabolic reflector is used to shape the input light into a circular beam having a 0.4 mm diameter exit. This light is then reflected off of the mirror, increasing its effective area and reducing losses. Finally, the integrated collimator in the product is used to ensure that the beam remains uniform, allowing for maximum performance.

In conclusion, the LPR3-1000-2000DP is a light pipe designed and manufactured by Foreoptics, Inc., specifically for fiber optic applications. Its wide angle acceptance and low loss make it ideal for imaging, power and signal transmission, night vision, medical imaging, and automotive systems. Additionally, its integrated collimator ensures that the beam remains uniform.

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