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New Tile Standards Developed
History of these Tile Sets
Early in 2006 Mt. Baker Research began developing new transfer standards
produced from commercial monochromatic ceramic tiles. We evaluated the tiles
distributed in North America by more than 20 international manufacturers and acquired
several hundred samples. After selecting the best varieties, we purchased the 8,000
tiles that make up our present production inventory. Dr. Art Springsteen (Avian
Technologies L.L.C.) supported the project by measuring reflectance factors for more
than 100 glossy tiles. Dr. Jack Root performed the background research, analyzed
and documented the reflectance factor data, and developed the procedures used to
manufacture the standards. At present he oversees production, which is carried out
at Mt. Baker Research L.L.C.
The sets described here are available for distribution, but this remains a work in
progress. We have commissioned several experts to evaluate our standards. We also
plan to calculate nominal CIELAB color coordinates and to measure thermochromism
on key glossy tiles.
Overview of Sets
The collection of glossy standards described in this catalog includes the following
sets: Basic Colors, Special Colors, and Grey and Pastel Colors. All sets contain 16 tiles,
each mounted in a Delrin holder, and each with an active optical surface measuring
approximately 50 mm by 50 mm. The tiles are identified with a label placed inside the
positioning device on the back of the holder. The standards are boxed and enclosed
in non-contaminating, non-woven optical component envelopes.
All sets include a booklet with ‘typical’ (8:d) reflectance
factor data. Calibration is available, traceable to NRC/NIST, for both hemispherical
(8:d) and bidirectional (45:0) geometries. Please contact Avian Technologies
for the cost of calibration.
We are actively developing matrices of color tiles for calibrating instruments with
small spot size. In addition, we offer individual tiles in both standard and custom
sizes. Over the next year we will publish spectral data for all of our available tiles.
Our spectral palette includes several hundred colors. These tiles are available on a
custom basis.
We offer these sets as an inexpensive, yet more expansive, alternative to the CERAM tile sets.
Please contact Avian Technologies for pricing and to let us know how we may best meet your needs.
For a complete description of the history and development of these tiles, as well as
plots of spectral reflectance data for all three sets, download this PDF.
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Set #1 — Basic Colors
The basic colors set parallels the CERAM Series II tiles set with a few changes.
Both a white and a black tile are included, as well as a difference blue and a difference
yellow pair in place of the CERAM difference green pair. The set contains sixteen tiles: 5 achromatics
and 11 chromatics.
Part No. ATBC-16-02-u (uncalibrated)
Part No. ATBC-16-02-c (calibrated)
More information on the Basic Colors Set |
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Set #2 — Grey Scale and Pastel Colors
The grey scale and pastel colors set extends the range of the basic color set by
adding a wide range of grey scale, including a difference 50% grey pair. In addition,
the set includes a wide range of pastel tiles, which are based on the more saturated
colors in the basic colors set. This set contains 7 achromatic tiles and 9 chromatic
tiles.
Part No. ATGP-16-02-u (uncalibrated)
Part No. ATGP-16-02-c (calibrated)
More information on the Grey Scale and Pastel Colors Set |
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Set #3 — Special Colors
The special colors set offers a wider gamut of saturated colors to enhance the
basic colors set. These tiles offer colors that are not normally found in color tile sets,
including a deep violet difference pair and a deep brown. This set is especially strong
in the purple to violet range. It aims to extend the gamut of the CERAM Series II set.
Part No. ATSC-16-02-u (uncalibrated)
Part No. ATSC-16-02-c (calibrated)
More information on the Special Colors Set |
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