Products Home / Optical Elements / Test Targets, Calibration Targets, and Reticles / Calibration TargetsCalibration Targets
- Stage Micrometers and Concentric Squares for Calibrating Distances
- Allows for Precise Measurements of Enlarged Images
R1L1S5P
Stage Micrometer
R1L3S1P
Stage Micrometer
R3L3S3P
Concentric Square Calibration Target
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| General Specifications | |
|---|---|
| Chrome Thickness | 0.120 µm |
| Chrome Optical Density | OD ≥3 at 430 nm |
| Substrate Thickness | 0.06" (1.5 mm) |
| Surface Flatness | ≤15 µm |
| Line Spacing Tolerancea | ±1 µm |
| Line Width Tolerancea | ±0.5 µm |
| Substrate | Soda Lime Glass |
Features
- Horizontal Stage Micrometers with Divisions from 10 µm to 100 µm
- Concentric Squares with Fourteen Positive Pattern Sizes from 0.1 mm to 50 mm
Thorlabs offers stage micrometers and concentric square patterns for calibrating distances in an imaging system. These targets feature soda lime glass substrates with vacuum-sputtered, low-reflectivity chrome. Each pattern is manufactured using photolithography, allowing for edge features to be resolved down to approximately 1 µm.
Mounting
These test targets can be mounted in one of four of our microscopy slide holders. Our MAX3SLH fixed slide holder provides two spring clips to mount the optic and can be mounted to any of our 3-axis flexure stages. The MAX3SLH is only compatible with test targets greater than or equal to 2" wide and provides a clear aperture of 1", which may cover the chrome pattern on some of the test targets. Thorlabs also offers our XYF1(/M) test target positioning mount (see photo above) capable of translating a 1" (25.4 mm) to 3" (76.2 mm) wide rectangular target over a 50 mm (1.97") x 30 mm (1.18") area. The mount offers five 8-32 (M4) taps for six post-mountable orientations. The XYF1 uses nylon-tipped setscrews to secure the optic. Please note that the mount's support arms overlap the optic by 4.4 mm on each side. For users of the MLS203 microscopy stage, we offer the MLS203P2 slide holder for inverted microscopes, which can mount slides 25 mm to 26.5 mm wide and petri dishes 30 mm to 60 mm in diameter.
| Targets Selection Guide | |||
|---|---|---|---|
| Resolution Test Targets | Distortion Test Targets | Slant Edge MTF Resolution Test Targets | Calibration Targets |
| Mounting Options | |||||
|---|---|---|---|---|---|
| Mount Item # | MAX3SLH | XYF1 | MLS203P2 | FFM1 with B3C | SFH2 |
| Image (Click to Enlarge) |
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| Compatible Target Item #s |
R1L3S1P, R1L3S2P | R1L1S5Pa, R1L3S1P, R1L3S2P, R3L3S3P |
R1L1S5P | R1L1S5P,R1L3S1P, R1L3S2P,R3L3S3P |
R1L1S5P,R1L3S1P, R1L3S2P,R3L3S3P |
| Features/Mounting | Mounts to 3-Axis Stages or Any with 1/4"-20 Taps |
XY Translation Ø1/2" Post Mountable |
Mounts to Our MLS203-1 and MLS203-2 Fast XY Scanning Stages |
Ø1/2" Post Mountable | Ø1/2" Post Mountable |
| Posted Comments: | |
| No Comments Posted |
Zoom
Click to Enlarge
Close Up of the R1L1S5P Horizontal Scale with Crosshair
- 1" x 1" (25.4 mm x 25.4 mm) Stage Micrometer
- For Calibrating Eyepiece Reticles or Objective Magnification
- 20 mm Horizontal Scale with 100 µm Divisions and Crosshair
This target features a stage micrometer pattern with 100 µm divisions and numerical labeling every 1 mm. The pattern is oriented horizontally with a 20 mm long scale and a perpendicular crosshair. The target consists of a 1" x 1" soda lime substrate with low-reflectivity, vacuum-sputtered chrome. This positive target is useful for the calibration of distances within imaging systems.
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- For Calibrating Eyepiece Reticles or Objective Magnification
- R1L3S1P: 10 mm Scale with 50 µm Divisions
- R1L3S2P: 1 mm Scale with 10 µm Divisions
- Scales Centered on a 3" x 1" (76.2 mm x 25.4 mm) Microscope Slide
These targets each feature a horizontal stage micrometer pattern. The R1L3S1P micrometer has a 10 mm long scale with 50 µm divisions and numerical labeling every millimeter, while the R1L3S2P has a 1 mm long scale with 10 µm divisions and numerical labeling every 0.1 mm. Both targets consist of a 3" x 1" soda lime substrate with low-reflectivity, vacuum-sputtered chrome. These positive targets are useful for the calibration of distances within imaging systems.
Zoom
- 3" x 3" (76.2 mm x 76.2 mm) Concentric Square Target
- Calibrate a Measurement for Imaging Software
- Low-Reflectivity, Vacuum-Sputtered Chrome
The R3L3S3P Concentric Square Target features fourteen concentric squares with lengths and widths ranging from 0.1 mm to 50 mm (see table below). Each square is labeled with its width on the target. This target is made from a soda lime glass substrate with low-reflectivity, vacuum-sputtered chrome. These positive targets are useful for the calibration of distances within imaging systems.
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 Calibration Targets |