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Checkerboard Calibration Targets On Glass

Checkerboard Calibration Target is a very popular calibration tool when evaluating or calibrating a lens in a imaging system's. To make sure the accuracy ,you need high precision checkerboard calibration targets.

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Description

Products Introduction:
Checkerboard Calibration Targets are to calibrate 2D industrial and machine vision cameras and to detect image distortion or sensor issues to ensure measurement accuracy. Our targets are available in many different sizes to be suitable for cameras with small or large field of views.

The High Precision Machine Vision Checkerboard is corner detection based on gray image, corner detection based on binary image and corner detection based on contour curve. Corner is a very important feature of image, which plays an important role in understanding and analyzing image graphics. The corner detection algorithms of gray image, binary image and edge contour curve are analyzed and evaluated. OpenCV calibration software can easily obtain the calibration result data of the camera, confirm the performance of the optical system, and determine the resolution of the camera lens. The classical checkerboard calibration board is compatible with the calibration algorithm of most image processing algorithms.

The edge detection and lines detection:

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Specification:

Product Type	High Precision Checkerboard Calibration Targets
Coating Type	Photolithographic
Design	Chrome-on-Glass
Substrate	Soda Lime Glass (Float Glass)/High Precision Quartz Glass(Fused Silica)
Pattern Dimension	Standard or Various size for small or large FOV
Chrome Thickness	0.120 µm
Substrate Thickness	0.06" (1.5 mm) or custom
Line Spacing Toleranceb	±1 µm / 0.7 µm (one light line and one dark line)
Line Width Toleranceb	±0.5 µm and better (one light line and one dark line)
Dimensions	Standard or Custom
Application	Optimized for Reflective Illumination Calibration of Imaging Systems

Glass Checkerboard Target Part Number:

Part Number	Plate Size	Grid Array	Square Size	Pattern Size	Material
WMT-025-0.1-G	25*25mm	165*165	0.1*0.1mmm	16.5*16.5mm	Glass
WMT-030-0.2-G	30*30mm	103*103	0.2*0.2mm	20.6*20.6mm	Glass
WMT-038-0.25-G	38*38mm	103*103	0.25*0.25mm	25.75*25.75mm	Glass
WMT-050-0.5-G	50*50mm	61*61	0.5*0.5mm	30.5*30.5mm	Glass
WMT-062-1.0-G	62*62mm	51*51	1*1mm	51*51mm	Glass
WMT-065-1.5-G	65*65mm	37*37	1.5*1.5mm	55.5*55.5mm	Glass
WMT-100-2.0-G	100*100mm	37*37	2*2mm	74*74mm	Glass
WMT-100-2.5-G	100*100mm	37*37	2.5*2.5mm	92.5*92.5mm	Glass
WMT-111-3.0-G	111*111mm	35*35	3*3mm	105*105mm	Glass
WMT-111-4.0-G	111*111mm	27*27	4*4mm	108*108mm	Glass

The Glass Checkerboard Target Material Details:

Glass substrate is transparent and reflective

Optical Soda Lime Glass (Float Glass)

Calibration targets with laser photolithography process, standard accuracy 1μm, The highest precision can be 0.1um, and the minimum line width is 1um;

CD accuracy 0.1um\0.25um\0.3um\0.5um\1um

The maximum size can be 1000mm*1000mm;

Thickness 0.5mm\0.7mm\1mm\1.6mm\2.3mm

\3mm\4.8mm\7.8mm for options

Quartz Glass (Fused Silica)

Calibration targets with laser photolithography process, standard accuracy 1μm, The highest precision can be 0.1um, and the minimum line width is 1um;

CD accuracy 0.1um\0.25um\0.3um\0.5um\1um

The maximum size can be 1000mm*1000mm;

Thickness 1.6-8mm for options

Optical Soda Lime Glass (Float Glass) material advantages: more than 90 degrees of penetration, good flatness, good stability, meeting most needs, moderate price;
Quartz Glass (Fused Silica)material advantages: high permeability; High hardness;High flatness; High stability;High precision; Disadvantages: high cost

Application:

Checkerboard targets used for calibrating imaging systems for distortion. These targets consist of a grid of squares(with lines,corners and edges),the dimension and distance varies depending on the application,such as Lower Focal Length Lenses,Vision Systems that Carry a Wide Field of View.

Factory Equipment:
The distortion test target production equipment including: IC-Mask writer equipment,Automatic Post-treatment equipment, Spin coating equipment, Laser cutting equipment,AOI inspection equipment etc.
The distortion test target testing equipment including: 3D Automatic Measuring Instrument , Reflectivity Detection Instrument , Optical Density Meter

Factory QA&QC:

Packing and shipment:

103

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