Course detail

Color Science and Technology

FCH-BA_CSTAcad. year: 2023/2024

The course is meant to deliver the attendees theoretical knowledge in the subject of color science and technology. These two complex and complementary subject fields include the theory of light and radiation, human response to light, interaction of radiation and matter, influence of chemical composition of matter on its color and appearance, applied chemistry of colorants, basic principles of color reproduction, mathematical description and modelling of color etc. The course should explain the connection between the physico-chemical principles of material color and its technological application. A great deal of attention is paid to the description and modelling of human visual system and objective color measuring.

Language of instruction

English

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

doc. Ing. Petr Dzik, Ph.D.

Department

Institute of Physical and Applied Chemistry (ÚFSCH)

Offered to foreign students

Of all faculties

Entry knowledge

Knowledge of general basis subjects (mathematical analysis, physics, biology).
Knowledge of selected chapters of special subjects (organic and physical chemistry).

Rules for evaluation and completion of the course

The laboratory course is completed with a credit, which is awarded after the completion and submission of the reports from all 12 tasks and a score of at least 50% of the points from the credit test.

The exam is written, the student are requested to pass an multiple choice exam test prepared in the LMS Moodle..

During the semester, students have the opportunity to do independent homework based on motivational assignments prepared for each topic in LMS Moodle. After their positive evaluation in the oral exam, they can receive extra points to their overall grade.

Aims

The goal of this course is to give the students a detailed insight in the subject field of color science and technology. The attendees should acquire the knowledge of terminology, understand the basic theoretical principles and abstract concepts, learn about typical related applications and major technologies. In this way they should acquire knowledge and skills necessary for their further study as well as professional carreer.
The improvement of theoretical knowledge, understanding and competences will be manifested in the following ways:
1) Course attendees will acquire complex knowledge of human visual system anatomical structures and biochemical principles. Further, they will also undestand the psychologic and psychophysical aspects of visual reception.
2) Course attendees will learn about historical and present approaches to color catalogization and organization.
3) Students will understand how the way a compound interacts with radiation determines its technological application (i.e., colorant, brightener, sensitizer, absorber, scattering/screening agents).
4) Students will become familiar with the essential color matching experiment and will adopt the related theory of color matching functions, tristimulus values and derived chrimnatic coordinates. Students will undestand the concept of colour difference, its various forms and significance for technology.
5) Attendeeds will learn the good laboratory praxis of spectroscopis and colorimetric measurements. They will understand the significance of measuring conditions (geometry, reflection, polarization, base support etc.)
6) Attendees will learn about the basic technology principles of colour reproduction and characterization of light sources.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Billmeyer and Saltzman's Principles of Color Technology, 3rd Edition, Roy S. Berns, ISBN-10: 047119459X
Color Science: Concepts and Methods, Quantitative Data and Formulae, Günther Wyszecki, W. S. Stiles, ISBN-10: 0471399183

Type of course unit

Lecture

26 hod., compulsory

Teacher / Lecturer

doc. Ing. Petr Dzik, Ph.D.

Syllabus

Human visual system I (eye structures and optical properties, physiology of sight)
Human visual system II (color vision theory, spatial resolution, color vision impairment, optical impairment, nerve signal processing)
Color perception (definition of color, visual adaptation, visual phenomena)
Light properties, photometry and radiometry (UV, VIS and NIR radiation, energy of light, units and measurement)
Color swatches and catalogues
Chemical reasons of colors (interactions of radiation and matter, absorbtion in molecules and crystals)
Technology of colorants, optical brighteners, UV absorbers, sensibilization
Color systems and classification (historical approaches, present systems, industrial swatchbooks)
Modern colorimetry (principles and definitions, elemental components, colori vision and metamerism, color matching experiments, CIE colorimetry)
Light sources (black body radiation, Planckian and non-Planckian sources, technology of real light sources, ideal colorimetric light sources, white point)
Standard observing conditions and measurement
Theory and technology of color reproduction (spectral reproduction, additive systems, subtractive systems, dot area modelling, layer thickness modelling)
Summary and conclusions, optional substitute of cancelled lectures

Laboratory exercise

39 hod., compulsory

Teacher / Lecturer

doc. Ing. Zdenka Kozáková, Ph.D.
doc. Ing. Petr Dzik, Ph.D.

Syllabus

Colour measurement - L*a*b* colour space
Colour difference
Lambert-Beer's law - concentration
Lambert-Beer's law - path length
Colorimetry of analytical probes (pH indicators, solvatochromism)
Subtractive colour mixing
Optical properties of papers
Grey scale in colorimetry
Colorimetric characterization of light sources
Additive colour mixing
Fluorescence
Phosphorescence
Substitutes, credit test

Elearning

eLearning: currently opened course