/HDV300/HDV400 Horizontal Digital Video Comparators

HDV300/HDV400 Horizontal Digital Video Comparators

Horizontal Digital Video Comparators



The HDV Horizontal Digital Video Comparators combine the best features of a horizontal optical comparator and a vision metrology system. With a rigid steel design, they are configured like a traditional horizontal comparator. The workstage is the same as the Starrett field-proven HB400 and HD400 comparators, with a 110lb (50kg) load capacity. The heart of the system centers on a uniquely designed interchangeable lens mounting system coupled to a hi-resolution color digital video camera (patent pending). The system is available with a choice of seven telecentric lenses for micron-level resolution and optical distortion as low as 0.001% for accurate field-of-view (FOV) measurements. Lenses provide a maximum FOV of up to 2.44″ x 1.85″ (62mm x 47mm). Stage movement can be related to the imported file allowing part comparison up to 16″ (400mm) long.
The HDV systems house a powerful 64-bit PC, which runs MetLogix™ M3 measuring software. With M3 software, DXF CAD files can be imported and 2D Go/No-Go digital overlays can be developed directly from the CAD files. Video edge detection (VED), allows real-time interaction of the imported file with the video image of the part being inspected. Productivity, speed and accuracy are all enhanced. Systems are available in manual or CNC control.

“DXF CAD files can be imported and 2D Go/No-Go digital overlays can be developed”


System Parameter                                 Telecentric Lenses                                      6.5:1 Zoom Lens

Optical magnification                 0.14x 0.30x 0.50x 0.80x 1.0x 2.0x 4.0x                   (6.5:1) 0.7x 4.5x
Magnification on 24″ monitor    8.6x 18.5x 21x 49x 62x 124x 247x                          (6.5:1) 58x 363x
Field of view width 2.36″ (63mm) 1.14″ (29mm) .59″ (15mm) .43″ (11mm) .35″ (9mm) .18″ (4.3mm) .09″ (2.3mm)                                                                                                                                                                          (6.5:1) .4″ (11mm) .05″ (1.5mm)
Working distance 4.3″ (110mm) 4.3″ (110mm) 4.3″ (110mm) 4.3″ (110mm) 4.3″ (110mm) 4.3″ (110mm) 4.3″ (110mm)                                                                                                                                                                    (6.5:1) 3.4″ (88mm) 3.4″ (88mm)
Optical Distortion, %               0.001 0.001 0.002 0.002 0.005 0.005 0.006               (6.5:1)     N/A              N/A


Feature                                                              MetLogix™ M3
PC installed in main housing                                         x
Color graphics touch screen                                          x
Windows® 10 operating system                                   x
X-Y-Q (angle) measurements                                        x
2D geometry software with skew                                   x
Video edge detection                                                     x
CAD file import and export                                             x
FOV measurements                                                       x
Elimination of Overlays                                                  x
Software developer                                               MetLogix™

Lens                                   Field of View (FOV)            in                        mm
0.30x                                                                       1.2 x .87                 29 x 22
0.50x                                                                         .69 x .52               18 x 13
0.80x                                                                         .43 x .32               11 x 8
1.0x                                                                           .35 x .26              8.8 x 6.6
2.0x                                                                           .17 x .13              4.4 x 3.3
4.0x                                                                           .09 x .06              2.2 x 1.65
6:1 Zoom                                                .44 x .37 to .07 x .06            11.2 x 9.4 to 1.8 x 1.5

“choice of seven telecentric lenses for micron-level resolution and optical distortion as low as 0.001%”

Features and Specifications
• Steel construction with hard anodized stage tooling plate
• 21.3″ x 5.1″ (540 x 130mm) workstage
• 110lbs (50kg) maximum load capacity
• 2″ (51mm) of focus travel
• Helix adjustment with ±15° Vernier scale
• Manual X-Y and focus positioning via hand wheels or CNC with joystick and trackball positioning
• Heidenhain glass scales for 0.5μm (.00002″) X and Y resolution
• LED illumination for surface and profile lighting
• 5 mega-pixel color camera (2448 x 2058 pixels)
• Ultra-low distortion to 0.001% for telecentric FOV measurements
• 64-bit Intel® processor
• Windows® 10 Professional operating system
• MetLogix™ M3 software with DXF/FOV option pack
• Software and part image displayed on 24″ (60cm) touchscreen color monitor (1920 x 1080 pixels)

• 6 interchangeable telecentric lenses for fields of view from 1.14″ to 0.09″ x 0.07″ (patent pending)
• Interchangeable 6.5:1 zoom optics
• Systems are also available with fixed .14x lens offering 2.5″ x 1.9″ (63 x 47mm) FOV. (Lenses are not interchangeable on this model)
• 23″ or 32″ high cabinet stands
• Calibration standards

HDV300 HDV400
Net Weight          HDV300 220lbs 100kg   HDV400 230lbs 105kg
Shipping Weight  HDV300 430lbs 195kg   HDV400 440lbs 200kg
X-Y Travel           HDV300 12″ x 6″ 300 x 150mm  HDV400 16″ x 6″ 400 x 150mm
X-Y Accuracy      HDV300 E2 = 3.0 μm + L/33   HDV400 E2 = 3.0 μm + L/33