In the realm of optical engineering, the achromatic pinhole lens emerges as a groundbreaking innovation, combining the simplicity of pinhole design with advanced color correction. Towin, a leader in optical solutions, has pioneered this technology to meet the demands of industries requiring flawless imaging, from medical diagnostics to industrial inspection.

What Is an Achromatic Pinhole Lens?

An achromatic pinhole lens corrects chromatic aberration—a common issue in traditional lenses where colors focus at different points, causing blurry images. By integrating a dual-element design (typically a crown and flint glass combination), Towin’s lens ensures that all wavelengths of light converge at the same focal plane. This results in sharper, color-accurate images even in low-light conditions.

Key Technical Specifications

Towin’s achromatic pinhole lens stands out with the following parameters:

• Aperture Size: 0.5mm–2.0mm (customizable for specialized applications)
• Wavelength Range: 400nm–700nm (visible spectrum) with optional UV/IR coatings
• Material: High-grade optical glass with multi-layer anti-reflective coating
• Focal Length: 5mm–50mm (depends on aperture and application)
• Design: Dual-element achromatic structure for minimal spherical aberration
• Mount Type: M12/S-mount for seamless integration with CMOS/CCD cameras

Fixed focus pinhole lens

Why Choose Towin’s Achromatic Pinhole Lens?

1. Superior Color Correction

Unlike single-element pinhole lenses, Towin’s design eliminates chromatic aberration, ensuring colors like red, green, and blue align perfectly. This is critical for applications such as fluorescence microscopy or machine vision systems.

2. Compact and Durable

Built for harsh environments, the lens features a ruggedized metal housing and scratch-resistant coating. Its miniature form factor (as small as 2mm in diameter) makes it ideal for space-constrained setups.

3. High Light Throughput

The multi-layer coating achieves >95% transmittance, reducing noise in low-light scenarios. This is paired with a precision-engineered pinhole (±0.01mm tolerance) for optimal resolution.

4. Customization Options

Towin offers tailored solutions, including:

• Custom aperture sizes for specific depth-of-field requirements
• Broadband coatings for UV/IR applications
• Compatibility with C-mount, CS-mount, or custom adapters

Pinhole-lens-10mm-IR-corrected

Applications Across Industries

Medical Imaging

In endoscopy and ophthalmology, Towin’s lens provides clear, distortion-free visuals, aiding in non-invasive diagnostics.

Industrial Inspection

Automated quality control systems rely on its precision to detect micro-defects in electronics, automotive parts, and pharmaceuticals.

Research & Development

Laboratories use the lens in spectrometers, laser alignment tools, and adaptive optics systems for experiments requiring sub-micron accuracy.

Security & Surveillance

Its wide-angle capabilities and low-light performance enhance license plate recognition and facial detection systems.

Comparing Traditional vs. Achromatic Pinhole Lenses

Conclusion

Towin’s achromatic pinhole lens redefines imaging standards by merging simplicity with cutting-edge optics. Its ability to deliver crisp, color-accurate results in compact form factors makes it a game-changer for industries demanding precision. Whether you’re developing medical devices, industrial sensors, or scientific instruments, this lens offers unmatched reliability and performance.