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Reticles![]()
R1DS2P R1DS3N Negative R19DS11P Positive Concentric Circles Aid Related Items ![]() Please Wait
![]() Click to Enlarge Figure 1. An R1DS3N Negative Reticle and a DG10-1500 Diffuser shown mounted with the ground side against the reticle. Together, they create an alignment target for a CPS520 Laser Diode Module that is mounted in KAD11F Kinematic Adapter and an LM1XY Translation Mount. The light is incident on the polished side of the diffuser. Features
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, which are made from soda lime glass. UV fused silica provides excellent transparency from the infrared down into the ultraviolet. Many of our reticles are available with positive and negative patterns. The positive reticles consist of high-reflectivity, vacuum-sputtered chrome patterns plated on clear substrates and are useful for front-lit and general applications. The negative reticles use the same chrome coating to cover the substrates, leaving the patterns clear, and work well in back-lit and highly illuminated applications. 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 solutions for imaging system calibration and measurements. We use contact photolithography with a mask aligner to define the pattern on the glass substrate. Once the pattern is defined, we chemically etch the substrates and clean them in a class 100 cleanroom. Thorlabs also offers a selection of test targets, calibration targets, and stage micrometers for imaging systems. ![]() Click to Enlarge Figure 3. View through the Reticle shown in Fig. 1 when the laser is misaligned ![]() Click to Enlarge Figure 2. View through the reticle shown in Fig. 1 when the laser is aligned ![]() Click to Enlarge Transmission for 1.0 mm UVFS Substrate For a graph that extends to 3.2 µm, please see the Graphs tab. The following transmission plot was measured at normal incidence using a UV fused silica substrate that was 1.0 mm thick. The transmission for the reticles sold here will be slightly lower because of their 1.5 mm thickness.
![]() ![]() Click to Enlarge Crosshair Pattern ![]() Click to Enlarge R19DS11P in SM1AD19 Mounting Adapter
Our crosshair (crossline) reticles are used to superimpose a reference pattern on an object being imaged. The crosshairs, formed from lines that are 10 µm wide, span the entire diameter of the optic. Made by plating chrome onto one side of a 1.5 mm thick 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. ![]() ![]() Click for Details Numbered Concentric Circle Pattern ![]() Click to Enlarge R19DS13P in AD19T Mounting Adapter
Our concentric circle reticles consist of a centered crosshair and ten numbered concentric circles. The innermost circle is 1 mm in diameter, with each subsequent circle increasing in diameter by 1 mm. The pattern is formed from lines that are 10 µm wide. Made by plating chrome onto one side of a 1.5 mm thick 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. | ||||||||||||||||||
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