About 2D Colorimeters
Q1:What differences do they have compared to normal digital cameras?
They can accurately reproduce colors in a way that is impossible for traditional digital cameras. Our 2D colorimeters cover the human color gamut nearly completely, quantify accurate color data, and enable actual colors to be seen accurately from images.
Q2:Do they use spectroscopy?
No, instead of spectroscopy, 3 filters that are equivalent to the human eye are utilized. Our 2D colorimeters faithfully input colors, exactly as seen by humans, and output them on the monitor. Color data for locations specified on the image reflected on the monitor are quantified (XYZ values/Lab values).
Q3:What are the differences compared to spectrophotometers?
Traditional spectrophotometers can only measure colors as an average value across a specified range of measurement, whereas 2D colorimeters measure color across a plane. As colors across a wide range are compared as a distribution without taking an average, colors for lamé, metallic paint, and patterns can be measured.
Q4:What is color distribution coincidence?
It is a parameter that our company uniquely devised to compare colors and textures. The chromaticity distributions of the standard object and the object to be inspected are overlaid on a color space, and the degree of overlap of the volume of the 2 chromaticity distributions is represented as a percentage.
For more details, please take a look at this resource.
Q5:How are textures quantified?
Similarly to humans, 2D colorimeters capture metallic paint and gloss as a space. Because 2D colorimeters hold colorimetry data for each pixel, they measure their colors and compare them.
Q6:Is there compatibility with Lab values measured using a spectrometer?
Although the same formulas are used, there is no compatibility, because spectrophotometers and 2D colorimeters use different lighting for measurements.
About Color Management
Q7:Please tell me when to use color distribution coincidence and when to use color difference.
We recommend using color difference to measure monochrome paint and using color distribution coincidence to measure metallic paint and wood grain. For monochromatic paint, because the color distributions are narrow and the degree of overlap is small, even if the color difference results are good, it is possible for the color distribution coincidence to be small. On the other hand, for metallic paint and wood grain, because the color distributions are wider, it is easier to determine the degree of overlap for the color distribution (color distribution coincidence).
Q8:What kind of correction methods are there?
There is shading correction, which corrects uneven lighting, dark correction, which corrects dark current noise, and white correction, which sets the standard white color.
Q9:Can uneven coloring be measured?
Yes, uneven coloring can be measured.
Q10:Can transparent objects be measured?
Yes, transparent objects can be measured. A uniform background is chosen for measurement.
Q11:Can three dimensional objects be measured?
Yes, three dimensional objects can be measured. This is possible within the range of the depth of field.
Q12:Can self-luminous colors be measured?
Yes, self-luminous colors can be measured. Measurement results are represented as XYZ values.
Q13:Can measurement data be feed back to color adjustments?
Yes, it is possible to use measurement data as reference values.
About Purchasing Methods
Q14:Are there demonstration units for rental?
At present, we are preparing a demonstration machine for rent, please contact us.
Q15:Is there measurement service?
If it is a small amount of sample, please contact us as it may be available for free.
Q16:Is there anywhere to actually see the devices?
The devices can be seen at our company. If you would like to visit our company, please contact us beforehand.
We also participate in exhibitions.
Q17:Please provide an estimate for delivery.
Delivery takes roughly 1.5 months, but depending on the specs, we may need 3 months or more.
Q18:Can a 2D colorimeter be purchased by itself?
As a general rule, we do not sell 2D colorimeters by themselves.
Q19:Can the software be purchased by itself?
As a general rule, we do not sell the software by itself.
Q20:Please provide introduction results.
We have successfully introduced our products to automobile manufacturers, dental material manufacturers, building material manufacturers, and printing companies.
About our Products
Q21:Is there a maximum size for objects to be measured?
Because our 2D colorimeters are of a camera type, there is no maximum size for objects to be measured, if the magnification of the lens and photographing distance are adjusted. However, from a color measurement viewpoint, there will be a maximum based on how much resolution is required for the area. Also, the maximum would vary based on whether a lens satisfying the demands is available or on restrictions on the photographing distance due to ceiling height.
Q22:Can small objects be measured?
By connecting a C mount to the optical microscope, small objects (to a certain extent) can be measured.
Q23:How much time is needed for photography?
This depends on the exposure time, but it is a single click, similarly to releasing the shutter for a normal camera. The time needed to photograph 1 image is several tenths of a second.
Q24:How much time is needed for measurement?
This depends on the inspection categories, but general inspections can be measured in real-time.
Q25:Are inline inspections possible?
Yes, inline inspections are possible. Inline inspections have been introduced using the RC-300 2D colorimeters.
Q26:Please describe the ranges of measurement.
The range of measurement can be specified based on the object and location to be measured, such as measurement of each block, measurement of several specified ranges, and measurement of the entire image.
Q27:How should lighting be chosen?
At the moment, lighting with color temperature used for visual inspections and lighting with color temperature typically used when the product is on display are sufficient, but we recommend use of lighting with high color rendering properties.
Q28:What are the differences between oblique lighting and diffused lighting?
Because the light diffraction of oblique lighting makes gloss stand out, we recommend oblique lighting for color measurement of metallic paint and textures. On the other hand, because diffused lighting provides uniform lighting without unevenness in luminance through equal light from all directions, we recommend diffused lighting for color measurement of base colors without texture.
About the Software
Q29:In what file formats can data be saved?
Image data can be saved as bitmap, JPEG, or TIFF. Numerical data can be saved as CSV.
Q30:Can images photographed with a digital camera be analyzed?
No, images photographed with a digital camera cannot be analyzed, because they do not have colorimetry data that images photographed with our 2D colorimeters have.
Q31:Is it possible to perform comparisons with past data?
Yes it is possible to perform comparisons with past data, as long as the measurement conditions are equal.
Q32:Can scratches and debris be detected?
No, scratches and debris cannot be detected.
Q33:Is it possible to display in CMYK?
Yes, it is possible to display in CMYK.
Q34:Are maintenance services offered?
Yes, we offer maintenance services. However, they vary based on the contract.
Q35:How long is the warranty period?
The warranty period is 1 year. However, please note that the warranty only applies to malfunctions caused by normal use.
Q36:Which items need replacement?
The color temperature for the fluorescent lights decrease with use. We recommend regular replacement of the fluorescent lights.