Concave Lens for Precision Optical Applications

Concave lenses are essential optical components designed to diverge light rays and control beam expansion in optical systems. With a curved inward surface, a concave lens spreads incoming light and creates a virtual focal point, making it widely used in imaging systems, laser optics, beam expanders, optical instruments, and scientific applications.

At Realpoo Optics, we manufacture precision concave lenses in different diameters, focal lengths, materials, and coating options to meet the requirements of customized optical systems.

What Is a Concave Lens?

A concave lens, also known as a diverging lens or negative lens, is thinner at the center and thicker at the edge. When parallel light passes through the lens, the light rays diverge outward. This optical function makes concave lenses useful for reducing image size, correcting optical paths, expanding laser beams, and improving system performance.

Common types include:

• Plano-Concave Lens
• Bi-Concave Lens
• Negative Meniscus Lens
• Custom Concave Lens

Key Features

Realpoo Optics provides concave lenses with high surface accuracy, stable optical performance, and customized specifications.

Main advantages include:

• Precise light divergence
• High-quality optical glass materials
• Good surface quality and dimensional accuracy
• Optional anti-reflective coating
• Suitable for visible, near-infrared, and infrared applications
• Custom size, focal length, and coating available

Materials and Coatings

Concave lenses can be manufactured from different optical materials according to application requirements, including N-BK7, fused silica, sapphire, CaF2, ZnSe, Ge, and other optical glass or infrared materials.

Available coating options include MgF2 coating, broadband anti-reflective coating, high-reflective coating, infrared coating, and custom coating designs. These coatings help improve transmission, reduce reflection loss, and enhance optical performance.

Applications

Concave lenses are widely used in:

• Laser beam expansion
• Imaging systems
• Optical instruments
• Scientific research
• Machine vision
• Medical optical systems
• Infrared optical systems
• Telescope and microscope systems
• Optical alignment and testing systems

Custom Concave Lens Manufacturer

As a professional optical components manufacturer, Realpoo Optics supports custom concave lens production from prototype to batch manufacturing. We can provide customized solutions based on diameter, focal length, material, surface accuracy, coating, edge treatment, and application requirements.

With precision manufacturing capability, advanced coating process, and strict quality inspection, Realpoo Optics delivers reliable concave lenses for global customers.

Realpoo Optics — Precision Optical Components, Customized Optical Solutions.