Home > Products > OpenCV Compatible Series-chrome on ceramic
WMO-050-3.0-C
Description: dimension 50x50mm, square 3.0x3.0mm, square array 13x12, chrome on ceramic
Compatible with the OpenCV calibration
Price
$238
Notes

1. This is actual price from the pricelist for our standard products.

2. Dot Vision directly serves and supports international customers.

3. You can get in touch with us simply by clicking "Inquiry now".

4. We use DHL/Fedex/TNT/UPS to make the delivery to international customers. You can receive the package within 4 working days.

NAME RULE:


050-3.0-g-21.jpg


SPECIFICATION:


Pattern Description
Square Size (mm)3.0 x 3.0Square Array13 x 12
Checkerboard Pattern area (mm)39 x 36Pattern TypeWhite ceramic background
Dimension / Geometry
Overall Dimension (mm)50 x 50Thickness (mm)1.0
Dimension tolerance (mm)±0.1Thickness Tolerance (mm)±0.1
Edges

Sharp Edge

Angle of the edges
±1°
Accuracy
Square Width Tolerance (mm)±0.002Square Length Tolerance (mm)±0.002 Center to Center

Accuracy from Chart / Target edge to chrome feature / pattern (mm)

±0.1Overall Accuracy (mm)±0.002
Coating
Coating Type

Blue Matte Chrome (reflectivity <5% @632nm ), no pinhole bigger than 0.001mm

Coating Thickness (nm)
~150nm
Substrate Properties
Type

Chrome pattern on ceramic substrate--Matte and diffusive reflectance surface make ceramic target suitable for front light illumination, reflective illumination, natural illumination applications

Matte and diffusive reflectance surfaceWhite or near white reflective material comprising of 96% compacted Alumina. Ceramics are commonly noted for their matte surface quality finish; therefore low reflectivity while retaining a white reflective surface as well as resistance to breakage
Surface Roughness0.2-0.7umSurface Flatness5-10um

Alumina content

96%

Specific Gravity

≥ 3.6 g/cm3

YOung's modulous

330GPa

Vicker Hardness

14GPa

Compressive Strength2000MPaBending Strength / Flexural Strength400MPa

Coefficient of Thermal Conductivity

18-25W/m.k

Coefficient of Thermal Expansion

7.2X10-6 / ℃

Highest Use Temperature

1650

Dielectric Constant9-10MHz


Link:

How to select a suitable calibration plate

How to make customization in Dot Vision/Customization procedure

Customization options(accuracy, substrate material, etc)

WMO-050-3.0-C.jpg

With guaranteed product quality, all calibration targets are tested using precision measurement instruments before packing and delivery to clients to ensure the accuracy.

Link:

Test report of a Dot Vision calibration target using a GOM 3D inspection system


We can provide a third party certificate of accury for the standard product if you require.



Dot Vision use direct write lithography technology to make chrome pattern / chrome mask layer above transparent soda lime glass (float glass) and opaque ceramic substrate to ensure high accuracy.


  • 1. Minimum feature size: Down to 0.7 μm

  • 2. Address grid: Down to 12.5 nm

  • 3. Exchangeable write modes

  • 4. Real-time autofocus system

  • 5. High power DPSS laser with 355 nm wavelength

  • 6. Camera system for metrology and alignment

  • 7. Closed-loop climate chamber

  • 8. Edge detector system


Chrome Mask Production Process.png


Instructions for protecting the calibration target

The glass or ceramic substrate calibration targets are made with a high flatness and low thermal expansion coefficients. There is not much to maintain, but of course you should be careful using the target. Don’t let it fall down, be careful during transportation, the side showing the pattern should be upside during use and transportation. Avoid scratches.

If you notice dust on the calibration target, use ear washing bulbs to remove the dust. If there’s dirt on the target, use clean water and woven cloth to clean it.


  • Q: How is the shipping fee?

    A: USD$26 for standard product series.

  • Q: How is the delivery time?

    A: Typically you can receive the product within 4 working days after order entry, no matter you are from Asia, America, or Europe.

  • Q: How can I place an order?

    A: Please get in contact with us from the yellow buttoms "Inquiry Now", "Ask Question", "Customization", or you can send us PDF purchase order/info via info@dot-vision.com.

  • Q: How about customization?  

    A: We are always happy and patient to hear your own ideas about the design of a customised calibration target, MOQ is 1pcs.

  • Q: How can I make payment?

    A: Paypal, credit card, or bank transfer available. 

  • Q: What is the price on the website?

    A: This is actual price from the pricelist.

  • Q: How does Dot Vision make delivery to you?

    A: Dot Vision use DHL/Fedex/TNT/UPS to make the delivery to international customers from worldwide, no matter you are from Asia, America, or Europe.

  • Q: Where does Dot Vision serve and support?

    A: Dot Vision directly serves and supports international customers from worldwide, Asia, America, Europe.

  • Q: How can I get in touch with Dot Vision immediately?

    A: You can get in contact with us quickly from the yellow buttoms "Inquiry Now", "Ask Question", "Customization", you can also send us an e-mail via info@dot-vision.com, our engineer will get back to you immediately within 24 hours.