Refractor Collection

Eye examination
MODEL RELEASED. MODEL RELEASED. Eye examination. Teenage (16 year old) girl looks through a refractor during an eye examination at an ophthalmologist

Amateur astronomy, computer artwork
Amateur astronomy. Computer artwork of a silhouetted amateur astronomer using a telescope to view the Milky Way. The Milky Way is a band of stars in the night sky that is a view of our own spiral

An engraving depicting a 36-inch refractor at the Lick Observatory. One of the world's two largest refractors it is
5311382 An engraving depicting a 36-inch refractor at the Lick Observatory. One of the world's two largest refractors it is on a German style equatorial mounting

A photograph of a 30-inch refractor at Pulkovo Observatory. Built by Repsold, Hamburg, 1884, 19th century
5311605 A photograph of a 30-inch refractor at Pulkovo Observatory. Built by Repsold, Hamburg, 1884, 19th century; (add.info.: Date: 1890); Universal History Archive/UIG

The 100 cm (40 in) refracting telescope in the Yerkes Observatory, Williams Bay, Wisconsin, United States of America
3473184 The 100 cm (40 in) refracting telescope in the Yerkes Observatory, Williams Bay, Wisconsin, United States of America, from Meyers Lexicon, pub

Engraving depicting a 23inch refractor built by Alvan Clark, 19th century
Engraving depicting a 23inch refractor built by Alvan Clark

Our Near Neighbour, Mars (b / w photo)
1627908 Our Near Neighbour, Mars (b/w photo) by English Photographer, (19th century); Private Collection; (add.info.: Our Near Neighbour, Mars)

The Lick Observatory, Mount Hamilton, California (engraving)
1037915 The Lick Observatory, Mount Hamilton, California (engraving) by English School, (19th century); Private Collection; (add.info.: The Lick Observatory, Mount Hamilton, California)

Engraving depicting a telescope built by Joseph von Fraunhofer, 19th century
Engraving depicting a telescope built by Joseph von Fraunhofer

Engraving depicting refractor on a German equatorial mounting, 19th century
Engraving depicting refractor on a German equatorial mounting

Engraving depicting Robert Stirling Newalls 25 inch refractor, 19th century
Engraving depicting Robert Stirling Newalls 25 inch refractor

Engraving depicting a 23 inch refractor built by Alvan Clark, 19th century
Engraving depicting a 23inch refractor built by Alvan Clark

Engraving depicting an astronomer and assistant observing Mercury, Venus and Jupiter, 20th century
Engraving depicting an astronomer and his assistant observing Mercury, Venus and Jupiter

Newtons catadioptric telescope, 1672
Newtons catadioptric telescope. 17th-century diagrams showing the optics and alignment of the lenses in the new catadioptric telescope proposed by English physicist Isaac Newton (1642-1727)

Telescope astronomy engraving 1895
Meyers Konversations-Lexikon. Ein Nachschlagewerk des allgemeinen Wissens, 5th edition 17 volumes Bibliographisches Institut - Leipzig 1895-1897

Refracting telescope, artwork C017 / 7353
Refracting telescope. Computer artwork showing the structure of a typical refracting telescope. A refracting telescope is a type of optical telescope that uses a lens as its objective to form an

Telescope eyepiece, Hem Observatory
Telescope eyepiece. This is the focus of a refracting telescope. At centre is where an eyepiece or photographic equipment would be placed

Historical ophthalmology refractor. 1910 refraction eye test equipment. This device is used for clinical measurement and correction of refractive errors of the eye

11. 5-inch telescope, Sydney Observatory
11.5-inch telescope, Sydney Observatory. This refracting telescope, on an equatorial mount, was built in 1874 in brass and glass by Hugo Schroeder of Hamburg, Germany

7. 25-inch telescope, Sydney Observatory
7.25-inch telescope, Sydney Observatory. This refracting telescope, on an equatorial mount, was made by the German company Georg Merz and Sons

Lick Observatory telescope, 1889 C016 / 4317
Lick Observatory telescope. 19th-century artwork of astronomers using the Great Lick Refractor, the 36-inch telescope built at the Lick Observatory, Mount Hamilton, California, USA

George Bishops Observatory, Regents Park, London
Sketch of George Bishops Observatory, near South Villa, Regents Park, London. By Henrietta Grace Baden Powell (nee Smyth, 1824-1914), mother of Robert

German astronomy atlas, 1882 cover artwork and titles. The name of this atlas (Bilderatlas der Sternenwelt) is across top, with the name of the Austrian author Edmund Weiss (1837-1917)

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"Exploring the Cosmos: The Versatile Refractor" Step into a world of discovery through the lens of a refractor, an essential tool in various fields. From eye examinations to amateur astronomy and computer artwork, this optical marvel has left its mark throughout history. In the 19th century, Alvan Clark's craftsmanship shone with his masterpiece - a remarkable 23-inch refractor depicted in an exquisite engraving. This technological feat paved the way for astronomers to explore our celestial neighbor, Mars, as captured in a captivating black and white photograph. The Lick Observatory on Mount Hamilton, California stands tall as another testament to the power of refractors. An enchanting engraving showcases this iconic observatory where countless stargazers have marveled at distant galaxies and nebulae. Joseph von Fraunhofer's ingenuity is immortalized in yet another engraving depicting his groundbreaking telescope from the 19th century. With precision optics and innovative design, it revolutionized astronomical observations. German equatorial mountings played a crucial role in enhancing stability for telescopes during that era. A detailed engraving showcases one such refractor mounted on this German innovation – an engineering marvel that allowed for more accurate observations. Robert Stirling Newall's monumental achievement comes alive through an intricate engraving of his awe-inspiring 25-inch refractor. Its sheer size opened up new frontiers for astronomers seeking deeper insights into our vast universe. Fast forward to the 20th century when astronomers continued their quest by observing Mercury, Venus, and Jupiter with unwavering dedication. An evocative engraving portrays these scientists alongside their trusty refractors as they unravel mysteries beyond Earth's boundaries. Let us not forget Sir Isaac Newton’s contribution - his catadioptric telescope from 1672 blended lenses and mirrors seamlessly to provide clearer images than ever before imagined. A true milestone in telescope technology.