Buying Optical Apertures
Various types of optical apertures are required for optical devices like monochromators, sensors, imagers, mode cleaners, and lasers. Examples include optical slits, pinholes, irises, and diaphragms.
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: optical apertures
- Related article: mode cleaners
Aspects to Consider Before Buying
Some aspects to consider before buying optical apertures: aperture size, shape, optical quality, alignment, mounting options, material durability, environmental stability, thermal properties, ease of adjustment, precision.
For responsible purchase decisions, we recommend applying good practices.
Find Suppliers for Optical Apertures
16 suppliers for optical apertures are listed in the RP Photonics Buyer's Guide, out of which 2 present their product descriptions. Both manufacturers and distributors can be registered.
| Suppliers with Advertising Package presenting their product descriptions | |
|---|---|
 We like it black ACM Coatings GmbH (subsidiary of Acktar Ltd.)Jakobsring 3 06618 Naumburg (Saale) Germany See us at SPIE Photonics West 2025 in San Francisco, January 25–30 (booth 4639)! |  Acktar blackened pinholes, air slits etc. are ideal for light aperture applications where back reflections from light sources are a concern. These optical apertures feature stainless steel substrates coated with Acktar Black™ coating, which is a super black, low reflectance coating used in wavelengths from the extreme ultraviolet (EUV) to the short-wave infrared (SWIR). This wide-band coating is stable in temperatures up to 380 °C and has no particulation from use. Acktar Blackened optical apertures can be coated on both sides, including the slit edges if needed, and are available unmounted or mounted for increased mechanical stability. |
 Bringing quality into focus Knight Optical (USA) LLC1130 Ten Rod Road Suite D102 North Kingstown Rhode Island 02852 United States |  Offering excellent control over beam shape and size, Knight Optical's apertures are available in two grades: standard and precision. Choose from a comprehensive stock range or customise your apertures to meet the exact needs of your project. Our series of apertures comprises pinholes, slits and iris diaphragms in sprung steel leaves or stainless steel leaves. |
| Other Suppliers | |
|---|---|
| CASIX Inc. China | |
| DIY-Optics GmbH Switzerland | |
| Ealing Catalog United States | |
| FISBA AG Switzerland | |
| Mikrop AG Switzerland | |
| Newport Corporation United States | |
| Ocean Opto Co., Ltd China | |
| Optico AG Switzerland | |
| OptoSigma United States | |
| OWIS GmbH Germany | |
| Schneider Kreuznach Germany | |
| STANDA Ltd. Lithuania | |
| Tian Cheng Optic Co., Ltd. China | |
| Vision Lasertechnik für Forschung und Industrie GmbH Germany | |
