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Reticles

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Reticles




  • Crosshair and Concentric Circle Pattern
  • UV Fused Silica Substrate Offers High Transmission
  • 19.0 mm, 21.0 mm, or 1" Diameters

Features

  • Positive and Negative Crosshair and Concentric Circle Patterns
  • Available in Ø19.0 mm, Ø21.0 mm, or Ø1" Sizes
  • UV Fused Silica Substrate
  • Patterns Made of Chrome Layer that is 0.120 µm Thick
  • Custom Patterns and Dimensions Upon Request

Reticles are optics designed for insertion in the eyepiece of an imaging system that superimpose either a crosshair or concentric circle pattern on the imaged object. The pattern provides a reference location and allows the imaged object to be centered. Because they are intended to be used in transmission, Thorlabs' line of reticles is made from a UV fused silica substrate, unlike our test targets and stage micrometers, which are made from soda lime glass. UV fused silica provides excellent transparency from the infrared down into the ultraviolet.

All the parts shown here are manufactured at Thorlabs' in-house semiconductor device production facility in Jessup, Maryland. Our extensive production capabilities enable us to provide both stock and custom solutions for imaging system calibration and measurements. We use contact photolithography with a mask aligner to define the pattern on the glass substrate. The mask is calibrated to NIST-traceable standards. Once the pattern is defined, we chemically etch the substrates and clean them in a class 100 cleanroom.

 

General Specifications
Diameter Tolerance +0.0/-0.1 mm
Substrate UV Fused Silica
Substrate Thickness 1.5 mm (0.06")
Surface Flatness λ at 633 nm
Surface Quality 60-40 Scratch-Dig
OD of Chrome Coating (Typ.) 3 at 633 nm

 

Crosshair Reticles

 

  • Crosshair Extends to the Edge of the Optic
  • Positive Crosshair Available in 19.0 mm, 21.0 mm, and 1" (25.4 mm) Diameters
  • Ø1" (Ø25.4 mm) Negative Crosshair Option

Our crosshair (crossline) reticles are used to superimpose a reference pattern on an object being imaged. The crosshairs, formed from lines that are 25 µm wide, span the entire diameter of the optic. Made by plating chrome onto one side of a UV fused silica substrate, these optics provide greater than 90% transmission in the 200 - 1200 nm spectral range.

The Ø19.0 mm reticle can be adapted to Ø1" mounts by inserting it into the AD19T or SM1AD19 Mounting Adapters. The AD19T has a smooth outer perimeter, making it compatible with any standard Ø1" mount, while the SM1AD19 has an external SM1 (1.035"-40) threading, providing the ideal match for Thorlabs' line of SM1-threaded optomechanics.

 

Concentric Circle Reticles

 

  • Ten Numbered Concentric Circles with 1 mm Spacings, Superimposed on a Crosshair
  • Positive Pattern Available in 19.0 mm, 21.0 mm, and 1" (25.4 mm) Diameters
  • Ø1" (Ø25.4 mm) Negative Pattern Option

Our concentric circle reticles consist of a centered crosshair and ten numbered concentric circles, each spaced 1 mm apart. The pattern is formed from lines that are 25 µm wide. Made by plating chrome onto one side of a UV fused silica substrate, these optics provide greater than 90% transmission in the 200 - 1200 nm spectral range.

The Ø19.0 mm reticle can be adapted to Ø1" mounts by inserting it into the AD19T or SM1AD19 Mounting Adapters. The AD19T has a smooth outer perimeter, making it compatible with any standard Ø1" mount, while the SM1AD19 has an external SM1 (1.035"-40) threading, providing the ideal match for Thorlabs' line of SM1-threaded optomechanics.

ABOUT US

Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

contact us

Tel               +966 35823441
Fax               +966 35823441
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