overall dimension 76 x 76mm, Positive type, 1951 USAF Resolution Target, feature size accuracy 1um, chrome on glass resolution target---Dot Vision, focus on custom test and calibration targets&charts&reticles

Categories

WMU-076-2-G-P

Pattern Description: Minimum: Group -2, Element 1, Maximum: Group 5, Element 6, Positive type, overall dimension 76x76mm

Price: $120

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.

Inquiry Now Ask Question Customization

SPECIFICATION:

Pattern Description
Standard Elements (Thickness 3.0mm)	Minimum: Group -2, Element 1, Maximum: Group 5, Element 6	Polarity	Positive: Opaque pattern, clear field
Standard Resolution/ Frequency	0.25~57.02lp/mm	Standard Line Width	2000~8.77um
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 Dimension	76 x 76mm	Thickness	3.0mm
Dimension Tolerance	±0.1mm	Thickness Tolerance	±0.1mm
Edges	Beveled	Angle of the edges	±1°
Surface Roughness	<0.025um	Surface Flatness	<10um
Accuracy Description
Standard Line Thickness Accuracy	±0.001mm	Standard Line Spacing Accuracy	±0.001mm
Custom Line Thickness Accuracy	±0.0001mm	Custom Line Spacing Accuracy	±0.0001mm
Accuracy from Chart / Target edge to chrome feature / pattern	±0.1mm	Overall Accuracy	±0.001mm
Chrome Coating
Standard Coating Type: Dark Brown Chrome	● Color: First surface / Air side Dark Brown, glass side SILVER; ● Reflectivity<25%@550nm; ● OD (Optical Density) >3.0; ● No pinhole bigger than 0.001mm; ● Custom Chrome type (High Reflective chrome and Blue chrome ➡ Go Link; ● 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 Quality	Scratch:Dig<=40:20
Thermal Expansion Coeff (CTE) (15 to 200 ℃)	85X10-7 / ℃	Manufacturing Temperature	23℃
Shear Modulus	＜3000 kg/mm2	Knoop Hardness	>500 kg/mm2
Annealing Point	>530 ℃	Gross Weight	42g
Highest Use Temperature	80℃	Storage Temperature	10-80℃
Type	Chrome on glass calibration target--suitable for backlight illumination/ transmission illumination applications

Numbers of Line pair/ (lp/mm & line width(um)
Element	Group -2	Group -1	Group 0	Group 1	Group 2	Group 3	Group 4	Group 5	Group 6	Group 7	Group 8	Group 9
1	0.250	0.500	1.000	2.000	4.000	8.000	16.000	32.000	64.000	128.000	256.000	512.000
2	0.281	0.561	1.122	2.245	4.490	8.980	17.959	35.919	71.838	143.675	287.350	574.701
3	0.315	0.630	1.260	2.520	5.040	10.079	20.159	40.317	80.635	161.270	322.540	645.080
4	0.354	0.707	1.414	2.828	5.657	11.314	22.627	45.255	90.510	181.019	362.039	724.077
5	0.397	0.794	1.587	3.175	6.350	12.699	25.398	50.797	101.594	203.187	406.375	812.749
6	0.445	0.891	1.782	3.564	7.127	14.254	28.509	57.018	114.035	228.070	456.140	912.280

Line width(um)
Element	Group -2	Group -1	Group 0	Group 1	Group 2	Group 3	Group 4	Group 5	Group 6	Group 7	Group 8	Group 9
1	2000.000	1000.000	500.000	250.000	125.000	62.500	31.250	15.625	7.813	3.906	1.953	0.977
2	1781.797	890.899	445.449	222.725	111.362	55.681	27.841	13.920	6.960	3.480	1.740	0.870
3	1587.401	793.701	396.850	198.425	99.213	49.606	24.803	12.402	6.201	3.100	1.550	0.775
4	1414.214	707.107	353.553	176.777	88.388	44.194	22.097	11.049	5.524	2.762	1.381	0.691
5	1259.921	629.961	314.980	157.490	78.745	39.373	19.686	9.843	4.922	2.461	1.230	0.615
6	1122.462	561.231	280.616	140.308	70.154	35.077	17.538	8.769	4.385	2.192	1.096	0.548

Link:

How to select a suitable calibration plate

How to make customization in Dot Vision/Customization procedure

Customization options(accuracy, substrate material, etc)

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 it.

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.

Holes/ angles/ corners on the calibration target are available

Irregular shapes of calibration target are available

Coating Types

High Reflective Chrome (Silver):

Reflectivity<65% @436nm

Low Reflective Chrome (Dark Brown):

Reflectivity<25% @550nm

Blue Chrome (Blue):

Reflectivity<5% @632nm

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.