Home > Customization options > For front & reflective illumination, robot vision applications
Chrome on ceramic
Description: Standard accuracy +/- 2um, maximum size 228x228mm, smallest line width (minimum feature size) 3um, matte and diffuse reflectance surface---No glare with on or off front lighting;

Custom Chrome Graticules, scales, reticles, pin holes, apertures, calibration targets, resolution targets, test targets and others in single pieces and small batches as well as in high-volume serial quantities are on request.
Notes

1. Customization MOQ is 1pcs.

2. Dot Vision directly serves and supports international customers.

3. You can get in touch with our engineers quickly by clicking below Buttom "Inquiry now" "Ask Questions" "Customization"

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Custom chrome on ceramic test&calibration target: For front light illumination, reflective illumination, natural illumination applications

Accuracy
Accuracy of single feature (mm) : Dot diameter, Dot spacing, Square width, Square length, Line width, Line spacing, etc±0.002
Accuracy of the overall pattern (mm)
±0.002
Accuracy from Chart / Target edge to single chrome feature / pattern (mm)±0.1
Minimum feature size (um)
Smallest Dot diameter, Dot spacing, Square width, Square Length, Line width, Line spacing, etcDown to 3.0um 
Production Process
Lithography
Geometry
Length / Width (mm)from 1x1mm  to 228 x 228mmThickness (mm)0.38 / 1.0 / 2.0mm in stock for options, gluing with empty PVC, ceramic, aluminum board to increase the thickness is available
Dimension Tolerance (mm) ±0.1Thickness Tolerance (mm)±0.1
Edges

Sharp edge

Angle of the edges
±1°
Coating
Coating Type

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

Standard Thickness of Chrome Layer (nm)~150nm
Protection layer (Pellicle) above the chrome layer making the chrome pattern more durableOn requestCoating / Pattern on both sides of the substrateOn request
Substrate Properties
Type

Chrome pattern on stable and matt ceramic substrate--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 Flatness (um)Dimension <100mm: 10-30um
Dimension 100-127mm: 60-100um
Dimension 228mm: 60-80um
Alumina content96%Specific Gravity≥ 3.6 g/cm3
YOung's modulous330GPaVicker Hardness14GPa
Compressive Strength2000MPaBending Strength / Flexural Strength400MPa
Coefficient of Thermal Conductivity18-25W/m.kCoefficient of Thermal Expansion7.2X10-6 / ℃
Highest Use Temperature1650Dielectric Constant
9-10MHz
Customization Details

Custom Pattern

Custom Patterns as customer's own design can be fully realized as long as the smallest feasture size is >=3.0um;  e.g. dot grid, checkerboard array, line grid, Charcu grid, crosshair, etc

Positive type (Dark pattern on white background) and Negative type (White pattern on dark background) are flexible up to customer's option;

Custom Dimension / GeometryLength / Width (mm)from 1x1mm  to 228 x 228mm
Thickness (mm)0.38 / 1.0 / 2.0mm in stock for options, gluing with empty PVC, ceramic, aluminum board to increase the thickness is available
Irregular shapes are on requestirregular shape customization calibration target.jpg
Mounting / Assembling Holes, Angles,  Corners, Protective Chamfers on the calibration&test targets are on requestcustomization.jpg
Custom / Digitalize drawing 

Dot Vision engineers could help you digitize the drawing. Data prep service is included in the targets / charts / reticles.

Matchable Mechanical Protection/Mounting frames are on requrest custom chrome on ceramic target.jpg
Coating / Pattern on both sides of the substrateAvailable and on request
3rd Party CertificationAvailable and on request
Prons and Cons
Disadvantage

● Maximum dimension limited to 228x228mm; 

● Chrome option costs much more than high resolution printing if feature +/- 2um accuracy is not essential

Advantage

● Highest Accuracy option among all opaque substrate

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● Matte and diffuse reflectance surface, no glare with on or off front lighting


Custom Chrome Graticules, scales, reticles, pin holes, apertures, calibration targets, resolution targets, test targets and others in single pieces and small batches as well as in high-volume serial quantities are on request.

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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


Dot Vision can provide third party certificate of the accury from feature to feature for the customization product if you require. You can name and require  any feature/position which you want accuracy certification from third party.


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


Holes/ angles/ corners on the calibration target are available

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Irregular shapes of calibration target are available

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  • How about customization?

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

  • How can I make payment?

    Paypal, credit card, or bank transfer are all available. 

  • How does Dot Vision make delivery to you?

    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. Normally you can receive package within 3 days, fastest service is in 2 days.

  • Where does Dot Vision serve and support?

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

  • Is there initial setup cost for customization?

    Dot Vision makes any customization pattern without extra initial setup cost, besides, Dot Vision offers to design the drawing for you without charge which is within our service.

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

    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.

  • How to get customization/ what's the customization procedure?

    1. Selecting the suitable substrate material is the first but also important step in customization, you can refer to this webpage  Select right substrate material to select suitable material, or you are always welcome to discuss with us to select suitable material via  info@dot-vision.com, Dot Vision engineer will come back to you immediately within 24 hours; 

    2. After selecting material, you can send us your drawing via  info@dot-vision.com(PDF, .dwg, .dxf, .jpg files are all fine), Dot Vision engineer will come back to you immediately within 24 hours; 

    if you don't have drawing, Dot Vision engineer could help to design the drawing;

    3. Dot Vision engineering team will make you quotation based on the material and your drawing; 

    4. After order entry, Dot Vision engineers will send you final manufacturing drawing for double confirmation before final manufacturing; 

    5. Customization manufacturing time is within 7 working days after final manufacturing drawing is confirmed;