Patent MDA1300R Portable USB Digital Microscope With Reticle Measurement Function for Textile Quality Control
Specifications
Conjugate system:40X, 240XAchromatic objective
Inclined illumination of 8 LED
1280*1024 for image & moive
Win8,Mac,Linux
♦Features:
1. Digital imaging module:1.3MP high performance CMOS imaging module;
2. Imaging software: Future Win Joe image & movie capturing and processing program
3. Optical conjugation imaging module: One set of lenses offers two optical magnifications: 2.5X and 0.4X;
4. Zoom and focus mechanism: Big focus wheel and double helix rail design offers smooth and fine adjustment of focus;
5. Uniform illumination part: Falling–in ring–lighting panel with 8 LED lamp.
6. Calibration ruler: 0.1mm/10mm calibrating slide.
♦Applications:
Inspectors can easily evaluate the quality of fabric by measuring the fabric density and checking the color.
Calibration:
With a 10mm/ 0.1mm glass micro ruler (Figure 1), to calibrate the movable reticle of the software (Figure 2).

Figure 1 A 10mm / 0.1mm ruler Figure 2 A movable reticle of Future Win Joe

Figure 3 Calibration of vertical line at 40X Figure 4 Calibration of vertical line at 240X
People usually estimate fabric density and fabric color with a traditional optics pick glass. Now with the help of MDA1300 portable USB digital microscope, accurate measurement of warp threads and weft threads per millimeter can be well done. From Figure 5, you can work out that 4 warp threads are covered by 12 units in horizontal reticle and 3 weft threads are covered by 12 units in vertical reticle (1 mm is calibrated to 12 units of reticle at 40X ). So we can say this chemical fabric is of density: 40 warp threads and 30 weft threads (threads per cm).

Figure 5: To measure fabric density at 40X Figure 6: To inspect single thread at 240X


Figure 8: Fabric of demin 240X Figure 9: Fabric of wool 240X
♦Detail Specifications :
Capture Mode | Picture and Video |
Sensor Parameter | 1/4” 1.3MP Color CMOS |
Max. Resolution | 1280*1024 |
Pixel Size | 2.8µm*2.8µm |
Sensitivity | 1.0V / lux-sec |
Dynamic Range | 71.0 dB |
S/N Ratio | 44.0 dB |
Working Distance | 5.0MM ---∞ |
Calibration slide | 1mm / 10mm ruler |
Magnification | 1---40X; 240X |
Spectral Range | 400-650nm(with IR-filter) |
Frame Rate | 17fps@1280*1024 |
Preview Model | 1280*1024; 640*480; 320*240 |
Exposure | ERS or Manual |
Power Consumption | 170 mW |
White Balance | ERS or Manual |
Out Interface | USB2.0 |
Device Weight | 0.211kg |
Device Size | Φ45mm*95mm |
Cable length | 1.5m |

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