In 1997, I reimagined Leonardo da Vinci’s Mona Lisa through a system of 142 color beads, each precisely positioned at the nodes of an invisible two-dimensional triangular grid. Up close, the pattern appears abstract, yet from a distance, the arrangement resolves into the familiar features of the portrait, inviting viewers to recognize the image through perception and suggestion.
Are you seeing spirals? Look again, they’re actually concentric circles! This unique variation of the “Fraser spiral” plays tricks on your eyes by blending a regular line pattern (representing the circle’s circumference) with misaligned elements (the spheres with varying brightness).
Would you like to learn how to create this mesmerizing illusion? Follow my simple visual tutorial. If you have any ideas to further enhance this project, please don’t hesitate to reach out.
Continue ReadingWith this work, I aim to push geometry to its limits, transcending the confines of color. My goal is to showcase the creative potential of simple concentric squares as a medium for experimentation and the discovery of new op art patterns. By delving into this exploration, I strive to unveil captivating illusions of color and mesmerizing motion.
Draw a large and a small square with thick lines and center them (Fig. A). Next, blend the inner and outer squares in six steps to create a set of concentric squares. Reproduce the set to form a larger square pattern, as shown in Fig. B.
Is yellow the true color of the sun? Our sun emits a broad spectrum of radiation, including visible light, which is crucial for life on Earth. In the vacuum of space, the sun appears white because it emits light across all wavelengths fairly evenly. However, when this light enters our atmosphere, it encounters air molecules and particles that scatter shorter wavelengths—primarily blue light—more effectively than longer wavelengths like red and yellow.
Consider a small, clear disc placed against a blue background. The disc may appear slightly yellow due to the influence of the blue light surrounding it. This visual effect is similar to how we perceive the sun against the blue sky.In essence, while the sun itself emits white light, our atmosphere alters its appearance, leading us to see it as yellowish or orangish at times.
Additionally, not all species perceive colors in the same way. Different animals have varying sensitivities to wavelengths of light. This means their experience of color and light can be quite different from ours.
For more fun facts about color perception and optical illusions, visit Archimedes Lab.
Although NOTHING moves on the gif below – only the colors change! – it’s easy to spot which direction the wheel is “rotating”… But which side is in front? Which side the back?
Another hypnotic version in which still squares and diamonds seem to move, but only colors change slightly!
When your brain lies… There is NO yellow, nor red, nor green in the picture below! The only real colors are blue, cyan and magenta. Scientists and artists call these color induction effects “simultaneous color contrast” and “color assimilation”.
Some simple geometric patterns and designs, when repeated, can induce strong illusory shape distortions. Thus, visual misperceptions are very common in the op art world.
If dark and clear rectangular tiles are arranged in a checkered fashion, as shown below, there is obviously no illusion, but wait, just add at the intersection of these tiles some transparent dark and clear square patches, et voilà, magic appears!
So, transparencies can produce apparent linear distortions. The parallel red lines in this example look like being convergent / divergent.
“Unspirals” is a series of silkscreen-print projects (still in progress). These colorful geometric op art works appear to rotate and move. They are great promotional supports for companies and products.
An optical illusion I created years ago for the Gewerbemuseum of Winterthur, Switzerland. The orange halo around the contour of the eye doesn’t exist, it’s a construct of your brain.
This illusive effect is related to the “neon color spreading” phenomenon.
Look carefully at the saw-tooth wave patterns on this picture. Is the background of the picture uniformly gray or are there different shades of gray?
Brightness constancy makes some vertical strips look darker, when in fact the gray background is all the same shade of gray.
This op art work is available as prints and canvases from my official online Gallery.