Overview
This document is a catalog from Ealing, detailing various optical components and instruments. It includes specifications, pricing, and applications for products such as pinholes, optical slits, and other optical components.

Optics
The catalog lists a variety of optical components including lenses, microscope components, prisms, polarizers, filters, pinholes, mirrors, and beamsplitters. These components are essential for various optical applications and are available in different specifications to suit diverse needs.

Opto-mechanics
Products in this category include rails, mounting hardware, mirror and component mounts, manual micro positioners, and motorized positioners. These are crucial for the precise alignment and positioning of optical components.

Infrared Laser Pinholes
These pinholes are designed for infrared wavelengths, including YAG and CO2 lasers, and can withstand high power densities up to 50 MW/cm². They are made from copper with a gold coating on the incident side and are available in 16 mm and 25 mm mounts.

• Specifications: Diameter tolerance of ±2.5 µm, centering in mount ±0.2 mm, and laser damage threshold of 50 mW/cm² at 1064 nm.

UV/Visible Laser Pinholes
Designed for UV and visible lasers, these pinholes are made from a molybdenum alloy and are suitable for high power continuous wave usage. They are used in spatial filtering and holography.

• Specifications: Pinhole thickness of 20 µm ±2.5 µm, centering in mount ±0.2 mm, and laser damage threshold of 76 mW/cm².

Precision Optical and Air Slits
Precision optical slits are photo-etched on a chromium-coated optical glass substrate, while air slits are micro-machined from solid opaque material. Both are used in spectrophotometers and imaging applications.

• Specifications: Optical slits have a diameter of 25.4 mm and thickness of 1.5 mm, while air slits have a diameter of 9.5 mm and thickness of 13 µm.

Precision Pinholes
These pinholes are used for spatial filtering, creating point light sources, and image analysis. They are available in diameters from 1 to 1000 µm and are mounted in 16 mm and 25 mm anodized mounts.

• Specifications: Pinhole thickness of 13 µm ±2.5 µm, centering in mount ±0.2 mm.

Conclusion
The catalog provides detailed information on a wide range of optical components, highlighting their specifications, applications, and pricing. These products are essential for various scientific and industrial applications, offering precision and reliability.