Buying Gradient-index Lenses
Gradient-index lenses (GRIN lenses) provide focusing without any curved surfaces. They are widely used for fiber beam collimation, fiber-to-fiber coupling, endoscope objectives, and as mode field adapters and contact lenses, offering precise control over light propagation in compact optical systems.
Making Good Purchase Decisions
RP Photonics helps to not only to find all relevant suppliers, but also to make good purchase decisions:
Learning Resources
With its comprehensive resources, RP Photonics helps you to well prepare purchase decisions:
- Encyclopedia article: gradient-index lenses
- Related article: lenses
Aspects to Consider Before Buying
Some aspects to consider before buying gradient-index lenses: focal length, dimensions, wavelength range, optical quality, aberrations, conditions on input beam, transmission loss, thermal stability, mounting options.
For responsible purchase decisions, we recommend applying good practices.
Find Suppliers for Gradient-index Lenses
9 suppliers for gradient-index lenses (GRIN lenses) are listed in the RP Photonics Buyer's Guide. Both manufacturers and distributors can be registered.
| Suppliers with Advertising Package presenting their product descriptions | |
|---|---|
 The Future Depends on Optics Edmund Optics101 East Gloucester Pike Barrington, NJ 08007 United States See us at SPIE Photonics West 2025 in San Francisco, January 25–30 (booth 1139)! |  Our GRIN lenses are designed to provide a 0.55 numerical aperture, and are available with two working distance options. Lenses with a zero working distance are ideal for collimation of single and multi-mode optical fibers and laser diodes because the lens can be positioned and glued directly to the emission source. For focusing applications, or in instances where the lens can’t be in direct contact with the emission source, all lenses are available with a small working distance as well. Each lens is available uncoated (approximately 12% reflection loss), or with a BBAR coating option for R < 0.5%. |
| Other Suppliers | |
|---|---|
| Aviation Magneto Optical Sensor Corp. (AMOS) United States | |
| CASIX Inc. China | |
| GRINTECH GmbH Germany | |
| IDIL Fibres Optiques France | |
| LightPath Technologies, Inc. United States | |
| Newport Corporation United States | |
| Sunday Optics China | |
| Wavelength Opto-Electronic (S) Pte Ltd Singapore | |
