Widefield, high N.A. objective lenses
The objective lens features a high 0.35 N.A. and low distortion equivalent to those in top-end microscopes, while achieving a long 50mm working distance
at all magnifications. They can be used with all four models (VM-3020, 6555, 10080, H3030). |
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Standard head with 15X high-speed zoom
The standard head features 5-step, 15X high-speed zoom, providing greater flexibility in choosing magnifications according to the size of the measuring
area.
| Type 1 |
Optical magnification
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0.5X
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1X
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2X
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4X
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7.5X |
| Total magnification |
18X |
36X |
72X |
144X |
270X |
| Field of view (mm) |
9.33X7 |
4.67X3.5 |
2.33X1.75 |
1.165X0.875 |
0.622X0.467 |
| Type 2 |
Optical magnification
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1X
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2X
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4X
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8X
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15X |
| Total magnification |
36X |
72X |
152X |
288X |
540X |
| Field of view (mm) |
4.67X3.5 |
2.33X1.75 |
1.165X0.467 |
0.582X0.437 |
0.311X0.233 |
| Type 3 |
Optical magnification
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2X
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4X
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8X
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16X
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30X |
| Total magnification |
72X |
144X |
288X |
576X |
1080X |
| Field of view (mm) |
2.33X1.75 |
1.165X0.875 |
0.582X0.437 |
0.291X0.218 |
0.155X0.117 |
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| *Total magnifications listed above represent those on the monitor screen when a 17" TFT monitor is set to the SXGA (1280 x 1024 pixels) mode. |
1X |
2X |
4X |
8X |
15X |
Color cameras can be used (optional). |
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 TTL
Laser AF with long working distances
TTL Laser AF provides high resolution, long working distances, and fast operating speed for perfect focusing on narrow spaces at low magnifications. High-speed
scanning measurement is possible at a rate of 1000 points per second max., enabling ultra-precise Z-axis measurements in a variety of applications.
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| Surface focus |
Contrast focus |
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High-speed, high-precision Vision AF
Thanks to the adoption of a new algorithm and a progressive scan type of camera, Vision AF now provides greater speeds and accuracy closer to those with
TTL Laser AF. Vision AF is convenient for applications where TTL Laser AF cannot be used, for example, when focusing on chamfered or round edges.
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| Illumination window |
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Four illumination choices
The VMR series comes with four illumination choices to provide illumination perfect for the workpiece to be measured. These include:
•Two types of 8-segment LED ring illumination
•Episcopic illumination (top light)
•Diascopic illumination (bottom light)
Edges previously difficult to capture can be detected with high resolution.
In addition, the VMR series features automatic light intensity control to provide the same brightness to multiple NEXIV systems without the need to edit
the teaching program.
8-segment LED ring illumination
An illumination system consisting of inner and outer ring illuminators has been specially developed for the VMR series. The system makes possible observations
of extremely low-contrast edges which are usually invisible under episcopic illumination by arbitrarily combining illuminations from eight directions. Best
for edge enhancement of the contours of bosses, pins, ceramic packages, and similar workpieces.
Inner ring illuminator (37° from the optical axis)
This type can be universally used whenever strong illumination from various directions is needed. This illumination also provides a full 50mm working distance.
Outer ring illuminator (75° from the optical axis)
This type enables the observation of workpieces that are impossible with lighting at a shallow angle. When not in use, the illuminator retracts, creating
more space over the workpiece. When in use, the working distance will be 10mm.
How the 8-segment LED
ring illuminator works |
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LED ring illumination
(medium angles of incidence) |
LED ring illumination
(large angles of incidence) |
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Episcopic illumination |
LED ring illumination
(large angles of incidence) |
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Episcopic illumination |
LED ring illumination
(medium angles of incidence) |
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Episcopic illumination |
LED ring illumination
(large angles of incidence) |
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