Design and optical performance research of a fully customizable collimating lens based on total internal reflection

Area of Science:

• Optics and Photonics
• Optical Engineering

Background:

• Collimating lenses are essential components in various optical systems.
• Existing designs often lack full customizability, limiting their application scope.
• Achieving high uniformity and low divergence angles simultaneously presents a design challenge.

Purpose of the Study:

• To propose a new optical design method for a fully customizable collimating lens.
• To demonstrate the effectiveness of the proposed method in achieving superior optical performance.
• To provide a versatile lens design adaptable to specific application requirements.

Main Methods:

• Initial lens model construction using a combination of total internal reflection algorithm and trial-and-error.
• Optimization of the lens design through normal vector correction.
• Implementation of high- and low-angle compensation for enhanced performance.

Main Results:

• The developed collimating lens exhibits a low divergence angle of 1.8° at 50% maximum luminous intensity.
• Achieved a high uniformity of 98.4%, indicating consistent light distribution.
• The design process allows for full customization of the collimating lens.

Conclusions:

• The proposed optical design method enables the creation of highly efficient and customizable collimating lenses.
• The demonstrated performance metrics surpass those of many conventional designs.
• This approach offers a viable solution for applications demanding precise beam control and uniformity.