Convex Collection

Hollow-face illusion, artwork
Hollow-face illusion, computer artwork. This is an optical illusion where the perception of a concave (hollow) mask of a face appears as a normal convex (protruding) face

The Arnolfini Portrait by Van Eyck
The Arnolfini Portrait. 1434. By Jan van Eyck (1394-1441). Oil on oak panel. National Gallery. London. Great Britain

Hollow-face illusion, artwork
Hollow-face illusion, computer artwork. This is an optical illusion where the perception of a concave (hollow) mask of a face appears as a normal convex (protruding) face

Self Portrait at the Mirror
XAM61522 Self Portrait at the Mirror by Parmigianino (Francesco Mazzola) (1503-40); Kunsthistorisches Museum, Vienna, Austria; Ali Meyer; Italian, out of copyright

Engraving depicting a double convex lens, showing refraction of light and the conjugate focus (b,a), 19th century
5309416 Engraving depicting a double convex lens, showing refraction of light and the conjugate focus (b,a), 19th century; (add.info.: Engraving depicting a double convex lens)

An engraving depicting a demonstration of how white light is broken down into the spectrum
5311269 An engraving depicting a demonstration of how white light is broken down into the spectrum and can be reconstructed into white light

Cross section illustrations of human eyes with concave and concave lenses looking at green tree
Arrow Sign, Astigmatism, Biomedical Illustration, Concave, Convex, Cross Section, Direction, Directly Above, Eyesight, Focus, Green, Human Eye, Lens, Light, Long, Looking, No People, Part Of

Showcase Cinema NWC01_01_1573
Showcase Cinema, St Philips Causeway, St Philips Marsh, City of Bristol. The curved entrance facade of the Showcase Cinema. The Showcase Cinema, or Showcase Cinemas, opened in 1994

Moluccan Shield, Indonesian (wood and shells)
AMQ115716 Moluccan Shield, Indonesian (wood and shells) by Indonesian; 124x27 cm; Ashmolean Museum, University of Oxford, UK; (add.info.: stab marks show use; ); © Ashmolean Museum

Bell (nao), Western Zhou dynasty (1046-771 B. C. ). Creator: Unknown
Bell (nao), Western Zhou dynasty (1046-771 B.C.). A bell with two convex sides of nearly rectangular shape and an opening at top rests on a slim cylindrical base

Pair of Convex Mirrors, 1810 / 30. Creator: Unknown
Pair of Convex Mirrors, 1810/30

Looking-glass, c. 1936. Creator: George Loughridge
Looking-glass, c. 1936

The Devil and the Coquette, copy of an illustration from Der Ritter von Turm
STC202574 The Devil and the Coquette, copy of an illustration from Der Ritter von Turm, Augsburg 1498, used in a History of Magic

Convex plaque with trees, clouds and flowers (metal)
1203518 Convex plaque with trees, clouds and flowers (metal) by Frampton, George James (1860-1928); diam: 12.5 cm; Leeds Museums and Galleries (Leeds Art Gallery)

Arnolfini Marriage, detail of mirror, 1434 (oil on panel)
QED26058 Arnolfini Marriage, detail of mirror, 1434 (oil on panel) by Eyck, Jan van (c.1390-1441); National Gallery, London, UK; Netherlandish, out of copyright

Camera Obscura, illustrration from Athanasius Kircher Ars Magna, Amsterdam
539368 Camera Obscura, illustrration from Athanasius Kircher Ars Magna, Amsterdam, 1671 (engraving) by Dutch School, (17th century); Private Collection; (add.info)

Chest of drawers, 1750-80 (mahogany, pine & brass)
1069405 Chest of drawers, 1750-80 (mahogany, pine & brass) by American School, (18th century); 77.1x91.7x51.7 cm; Dallas Museum of Art, Texas, USA; The Faith P. and Charles L

Vase, Burmantofts Pottery, c. 1890-99 (ceramic)
2652191 Vase, Burmantofts Pottery, c.1890-99 (ceramic) by English School, (19th century); height: 12 cm; Leeds Museums and Galleries (Leeds Art Gallery) U.K.; (add.info)

Still Life with Self Portrait (oil on canvas)
LMG100021 Still Life with Self Portrait (oil on canvas) by Gertler, Mark (1891-1939); 50.8x40.6 cm; Leeds Museums and Galleries (Leeds Art Gallery) U.K.; eLeeds Museums and Galleries; English

Mirror (one of a pair), 1936. Creator: Ferdinand Cartier
Mirror (one of a pair), 1936

The big web
Luc Vangindertael (laGrange)

EyeUbiquitous_20100312
Singapore, stop traffic sign and a curved mirror reflecting the stop letters on the road surrounded by trees

EyeUbiquitous_20105667
Transport, Road, Safety, Convex mirror used to view oncoming traffic from unsighted exit

EyeUbiquitous_20101000
Hungary, Pest County, Budapest, circular traffic guiding mirror reflecting apartments on River Danube bank in Pest

Doctor Convex and Lady Concave, November 20, 1802. November 20, 1802
Doctor Convex and Lady Concave, November 20, 1802

The Convex Mirror, c1916. Artist: George Washington Lambert
The Convex Mirror, c1916. From The Studio Volume 76. [London Offices of the Studio, London, 1919]

Former Essoldo Cinema
Striking Art Deco style cinema, now disused. Stretford, Greater Manchester. IoE 438795

Open umbrella blown upwards from convex into concave shape by strong wind, side view

From Left Clockwise, An Archer, The Standard Of Richard, Earl Of Warwick, A Crossbow Man And A Pavoiser. From The British Army: Its Origins, Progress And Equipment, Published 1868

Berlin Gold Hat. Fine gold leaf. 1000 BC
Berlin Gold Hat. Thin gold leaf. Late Bronze Age. 1000 BC. Detail. Unknown origin, probably South Germany. Neues Museum. Berlin. Germany

Barnabys Library
The Georgian shop at 19 Rathbone Street (off Oxford Street), London, which housed Barnabys Picture Library (established 1931) from 1969 until it closed in 2001. Date: 1969 - 2001

Christmas card in the shape of a pink parasol, with swallows and green foliage. Date: circa 1890s

Chapel of the Pilgrims. Pontevedra. Spain
Spain. Pontevedra. Chapel of the Pilgrims. 1778. Built by Antonio Scouto. Exterior

Laundry irons, 1923
A selection of irons, as featured in a catalogue: a patent gas iron, a flat iron with galvanised stand, and a convex polishing iron. Date: 1923

Disk Shield Cover 14th-15th century Peru Chimu
Artokoloro

Microscopic view of the common cold virus
Conceptual image of the common cold virus. The common cold virus is an infectious disease typically transmitted via airborne droplets (aerosols), direct contact with infected nasal secretions

Artists illustration of an icosahedron. In geometry, an icosahedron is a polyhedron with 20 triangular faces, 30 edges and 12 vertices

Seaside visitors paying a visit to the camera obscura. The viewers sat in a darkened chamber: the scene around was collected by the mirror, (A) and passed it through a convex lens (B)

Symbolism and modern science. Frontispiece of Ars Magna Lucis and Umbra by Athanasius Kircher (Amsterdam, 1671). Traditional Hermetic/Alchemical symbols are mixed with a telescope

Parabolic convex mirror, artwork C017 / 7071
Parabolic convex mirror. Computer artwork of light beams striking a parabolic convex mirror from the light source at centre. The rays strike the reflector and are diverged

Light Physics Diagrams and Instruments. C017 / 3472
Plate from 18th century encyclopedia showing light physics diagrams and instruments. Included are illustrations showing the splitting of white light into the colours of the spectrum

Cassegrain reflector, artwork C017 / 7061
Cassegrain reflector. Computer artwork of parallel beams of monochromatic light passing through a simple Cassegrain reflector

Reflaction and Telescope Optics C017 / 3507
Plate from 18th century encyclopedia showing diagrams of telescope optics, and light raypaths through prisms and lenses to the eye

Light Raypaths through Lenses and Prisms C017 / 3485
Plate from 18th century encyclopedia showing light raypaths through lenses and prisms, a magic lantern and a camera. Also shown is a method for calculating the height of buildings by using

Refraction, artwork C017 / 7069
Refraction. Computer artwork showing light beams passing through a biconvex, or converging, lens. Refraction is the change of direction of a wave when it passes from one medium to another

Refraction, artwork C017 / 7094
Refraction. Computer artwork of diverging light beams passing through a glass sphere and converging to the right of the sphere

Convex traffic mirrors at a crossroads in Antequera, Spain

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"Exploring the Enigmatic World of Convex: From Van Eyck's Arnolfini Portrait to Hollow-Face Illusions" Step into a mesmerizing realm where art and perception intertwine, as we delve into the captivating concept of convexity. The journey begins with one of the most iconic artworks in history, "The Arnolfini Portrait" by Van Eyck. Notice how the convex mirror at its center reflects an alternate perspective, inviting us to question reality. Speaking of illusions, let's unravel the enigma behind hollow-face artwork. Prepare to be astounded by pieces like "Self Portrait at the Mirror, " where convex surfaces play tricks on our eyes, distorting dimensions and challenging our understanding of depth. Traveling through time and space, we encounter fascinating artifacts such as the ancient Berlin Gold Hat from 1000 BC. Its delicate craftsmanship showcases intricate convex patterns that shimmer with fine gold leaf—an exquisite testament to human ingenuity. Venturing further into diverse cultures, we stumble upon unexpected treasures like the Moluccan Shield from Indonesia. Crafted from wood and shells, its convex shape not only provides protection but also symbolizes strength and resilience within indigenous communities. Intriguingly mysterious is a bell known as Nao from China's Western Zhou dynasty (1046-771 B. C. ). With an unknown creator but unmistakable convex form, it resonates with historical significance—a tangible link to ancient rituals and beliefs. Fast-forwarding centuries brings us face-to-face with intriguing objects like Pair Mirrors (1810/30). Their elegant design captivates viewers while reflecting distorted images that challenge conventional perspectives—proof that even everyday objects can become works of art. Continuing this visual exploration takes us to George Loughridge's Looking-glass (c. 1936), a masterpiece showcasing both simplicity and complexity simultaneously. Its curved surface bends light rays in unique ways—transforming our reflection into a kaleidoscope of possibilities.