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WMU-050-0-G-N
Pattern Description: Minimum: Group 0, Element 1, Maximum: Group 5, Element 6, Negative type, Dark Brown chrome OD>3.0, overall dimension 50x50mm
Price
$90
Notes

1. This is actual price from the pricelist for standard product series.

2. Dot Vision directly serves and supports international customers.

3. You can get in touch with us simply by clicking "Inquiry now" as below buttom and we will get back to you within 24 hours timely.

4. DHL/Fedex/TNT/UPS service are used to make delivery to international customers, package can be delivered and signed within 4 working days.

SPECIFICATION:



Pattern Description
Standard Elements

Minimum: Group 0, Element 1; Maximum: Group 5, Element 6

Polarity

Negative: Clear pattern, opaque field

Standard Resolution/ Frequency

1.0~57.02lp/mm

Standard Line Width

500~8.77um

Custom Smaller Line Width / Custom Smaller Line Spacing available  (Soda lime glass)
down to 2um (Minimum: Group -2, Element 1, Maximum: Group 7, Element 6)
Custom Smaller Line Width / Custom Smaller Line Spacing available (Quartz glass)down to 0.5um ((Minimum: Group -2, Element 1, Maximum: Group 9, Element 6)
Geometry Dimension and Tolerance
Overall Dimension50 x 50mmThickness3.0mm
Dimension Tolerance¡À0.1mmThickness Tolerance¡À0.1mm
Edges

Beveled

Angle of the edges
¡À1¡ã
Surface Roughness<0.025umSurface Flatness<10um
Accuracy Description
Standard Line Thickness Accuracy¡À0.001mm
Standard Line Spacing Accuracy¡À0.001mm
Custom Line Thickness Accuracy¡À0.0001mmCustom Line Spacing Accuracy¡À0.0001mm

Accuracy from Chart / Target edge to chrome feature / pattern

¡À0.1mmStandard Overall Accuracy¡À0.001mm
Chrome Coating

Standard Coating Type: 

Dark Brown Chrome

¡ñ Color: First surface / Air side Dark Brown, glass side SILVER;

¡ñ Reflectivity<25%@550nm;

¡ñ OD (Optical Density) >3.0;

¡ñ No pinhole bigger than 0.001mm;

¡ñ Custom Chrome type (High Reflective chrome and Blue chrome ➡ Go Link;

¡ñ AR coating (Anti-Reflection coating): Avaialbe ➡ Go Link

Substrate Properties
Reflectance (420~700nm)Rave<4.368%@420~700nm (Reflectance can be optimized to Rave<0.5% by applying AR coating on glass surface if needed)Transmittance (420~700nm)Tmax <91.892%@420~700nm (Transmittance can be optimized to Tmax<99.2% by applying AR coating on glass surface if needed)
Refractive Index

1.5373@400nm;

1.5234@587nm;

1.5195@700nm;

Surface QualityScratch:Dig<=40:20
Thermal Expansion Coeff (CTE) (15 to 200 ¡æ)85X10-7 / ¡æManufacturing Temperature23¡æ
Shear Modulus£¼3000 kg/mm2Knoop Hardness>500 kg/mm2
Annealing Point>530 ¡æGross Weight18g
Highest Use Temperature80¡æStorage Temperature10-80¡æ
TypeChrome on glass calibration target--suitable for backlight illumination/ transmission illumination applications



Numbers of Line pair/ (lp/mm & line width(um)
ElementGroup -2Group -1Group 0Group 1Group 2Group 3Group 4Group 5Group 6Group 7
Group 8Group 9
1

0.250

0.500

1.000

2.000

4.000

8.000

16.000

32.000

64.000

128.000

256.000512.000
2

0.281

0.561

1.122

2.245

4.490

8.980

17.959

35.919

71.838

143.675

287.350574.701
3

0.315

0.630

1.260

2.520

5.040

10.079

20.159

40.317

80.635

161.270

322.540645.080
4

0.354

0.707

1.414

2.828

5.657

11.314

22.627

45.255

90.510

181.019

362.039724.077
5

0.397

0.794

1.587

3.175

6.350

12.699

25.398

50.797

101.594

203.187

406.375812.749
6

0.445

0.891

1.782

3.564

7.127

14.254

28.509

57.018

114.035

228.070

456.140912.280



Line width(um)
ElementGroup -2Group -1Group 0Group 1Group 2Group 3Group 4Group 5Group 6Group 7
Group 8Group 9
12000.0001000.000500.000250.000125.00062.50031.25015.6257.8133.9061.9530.977
21781.797890.899445.449222.725111.36255.68127.84113.9206.9603.4801.7400.870
31587.401793.701396.850198.42599.21349.606
24.80312.4026.2013.1001.5500.775
41414.214707.107353.553176.77788.38844.19422.09711.0495.5242.7621.3810.691
51259.921629.961314.980157.49078.74539.37319.686
9.8434.9222.4611.2300.615
61122.462561.231280.616140.30870.15435.07717.5388.7694.3852.1921.0960.548



Link:

How to select a suitable calibration plate

How to make customization in Dot Vision/Customization procedure

Customization options(accuracy, substrate material, etc)

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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.


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.


Ø OMM machine used: Hexagon OMM machine with uncertainty Exy= ¡À(0.6+L/900) um  (Laboratory temerature 20¡æ, humidity 49%)

Ø OMM measuring 3rd party is accredited in accordance with ISO/IEC 17025:2005 General Requirement for the competence of Testing and Calibration Laboratories


Go Link:

Accuracy performance analysis of a chrome on glass dot grid calibration target


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 ¦Ìm

  • 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


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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.

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Holes/ angles/ corners on the calibration target are available

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Irregular shapes of calibration target are available

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Coating Types

High Reflective Chrome (Silver): 

Reflectivity<65% @436nm

Low Reflective Chrome (Dark Brown): 

Reflectivity<25% @550nm

Blue Chrome (Blue):  

Reflectivity<5% @632nm 

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  • 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.