Omron V460-H User Manual page 45

3 Basic Operation
3-1-2 Multi-Axis Lighting
The V460-H incorporates a multi-axis illumination system designed to ensure reliable decoding of the
toughest direct part marks (DPM) and labels.
• Dome Lighting: Red, green, and blue LEDs (allowing any RGB combination).
• Low-Angle Lighting: Red LEDs (north, south and north + south).
• Torch Lighting: White LEDs
Through an advanced combination of multi-colored dome (bright field), low-angle (dark field), and torch
(long-range) illumination techniques, the V460-H provides even illumination of flat, shiny surfaces,
enhancing embossed features, or differentiating features on curved surfaces, as well as providing
high-powered illumination for reading codes with extended read range from contact to 10" (254 mm).
Dome Illumination
Dome Illumination provides diffused, uniform light. The large, solid angle of illumination supports imaging
of shiny, flat surfaces or curved surfaces. This type of illumination is useful on specular (shiny) and
non-specular surfaces, and is ideal for de-emphasizing surface texture and elevation (curves). The
dome geometry provides the widest area of coverage at close working distances.
It is important to note that for marks that are a large percentage of the diameter of a curved surface,
closer distances will provide the best performance.
In addition to illuminating marks on curved surfaces, dome lighting also provides diffuse, even bright
field illumination, which provides thorough coverage on a wide variety of direct part marks.
Dome Illumination
 Dome Illumination Colors
Dome Illumination provides diffused, uniform light in RGB colors that can be combined to achieve
additional colors:
• Red
• Green
• Blue
• Yellow (Red + Green)
• Magenta (Red + Blue)
• Cyan (Green + Blue)
• White (Red + Green + Blue)
Dome Illumination adds another dimension of decode optimization for direct part marks. Using the
opposite light spectrum as a part's surface color will make the part feature appear darker. Using the
same light spectrum will make the part feature appear lighter.
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V460-H Industrial Handheld DPM Reader User Manual