🔦 Collimating Lenses by Yighen

Precision Laser Collimation & Illumination Optics for Demanding Applications

📌 What Are Collimating Lenses?

Collimating lenses are optical components that convert divergent or converging light beams into parallel rays, minimizing beam spread over distance. These lenses are essential in laser systems, fiber optics, spectroscopy, and illumination modules, where precise control of beam shape, divergence, and directionality is required.

Yighen provides high-performance collimating lenses for UV to SWIR bands, including custom collimation assemblies tailored to your laser source, wavelength, and mechanical integration needs.

💡 Key Features of Yighen Collimating Optics

• 🌈 Broadband AR coating: UV (355 nm) to SWIR (2.5 µm)

• 📏 Focal lengths from 2 mm to 100 mm (customizable)

• 🌀 Low wavefront distortion (≤λ/10 @ 632.8 nm)

• 🔍 High NA options for tight beam collimation

• 🔩 OEM-ready housing: C-mount, M12, barrel, flange

• 💠 Aspheric & freeform collimators for compact systems

• 🧪 Materials: N-BK7, Fused Silica, ZnSe, CaF₂, PMMA, COP, APEL

🧰 Technical Specifications – Laser Collimators

🏭 Yighen In-House Manufacturing Capabilities

Yighen supports the end-to-end production of laser collimating lenses and modules:

• 💎 Diamond turning for aspheres & freeform collimators

• 🧼 Cleanroom bonding and lens barrel alignment

• 🧪 Interferometric & focal spot testing (MTF / wavefront)

• ⚙️ CNC-based mechanical integration for opto-mechanical modules

• 🛠️ Reverse engineering and tuning of legacy collimators

Our factory is equipped with NanoTech 650 FG, ULC-100F(S), and ULG-100D systems to ensure surface quality down to Ra 0.001 µm and P-V 0.01 µm.

🔍 Typical Applications

📈 Case Study: Custom Collimator for SWIR Lidar

Client: European autonomous vehicle startup
Requirement: Compact SWIR collimator @ 1.55 µm with <1.2 mrad divergence
Solution: Freeform fused silica lens with broadband SWIR AR coating
Result: Achieved 96.4% transmission efficiency and tight beam profile in a 17 mm barrel

🌎 Why Yighen?

Yighen combines optical design, precision machining, and custom module integration under one roof:

• 📍 Hong Kong HQ – Customer engineering & design

• 🏭 Dongguan Plant – CNC, lens molding & testing

• 🔬 Singapore Center – Advanced diamond turning, QA lab

• ✅ ISO 9001/13485 certified | Traceable QA | Fast NPI cycles

🧾 Ready-to-Ship Models

We offer standard collimators for 532 nm, 850 nm, 1064 nm, 1550 nm:

• 🔹 12.5 mm FL, fused silica, AR coated (SWIR)

• 🔹 17 mm FL, IR-grade plastic, lightweight, low cost

• 🔹 25 mm FL, ZnSe, laser damage resistant

📄 Custom datasheets & optical simulations available upon request.

🎯 Precision Collimation for Laser, LED, and Sensor Systems

Yighen provides high-performance collimating lenses optimized for coherent and incoherent light sources—from UV lasers to NIR LEDs. Our designs minimize divergence, maximize transmission, and maintain tight tolerances across temperature variations and alignment sensitivities.

📩 Request a Custom Collimating Lens
Send us your source specs, target beam size, wavelength, and working distance. We’ll deliver a lens tailored to your optical system.

📘 Access Technical Drawings & Material Specs
Download lens profiles, spot size simulations, and recommended substrates on our Downloads page.

🏢 Learn More About Our Capabilities
Visit our About page to explore our design and machining infrastructure—from freeform lenses to diamond-turned prototypes.

🔗 Related Content

• 🔧 Beam Expanders
  Pair with collimators to control divergence and working distance across wavelengths.

• 💡 TIR Lenses
  For compact and efficient LED beam control via total internal reflection.

• 🧩 Opto-Mechanical Modules
  Integration-ready assemblies for collimation, beam steering, and system alignment.

• 🧪 Optical Coating Services
  Anti-reflection coatings for maximum transmission in UV–SWIR applications.

• 🔬 Optical Engineering Services
  Simulation and tolerance optimization for beam shaping systems.