John Dollond FRS (10 June O.S. John Dollond was also responsible for the split objective micrometer. Singer, songwriter, guitarist. Dollond raised his own family and continued in his weaving business where he … Throughout most of his life, he worked for the family firm of mathematical instrument makers, assuming full control after the retirement in 1819 of his uncle Peter Dollond. Download this app from Microsoft Store for Windows 10. John Denver is a pop star whose name is synonymous with music that celebrates life ’ s simple pleasures. In 1758 he published an "Account of some experiments concerning the different refrangibility of light" (Phil. Trans., 1753), but subsequently, after the Swedish physicist, Samuel Klingenstierna (1698–1765), had pointed out that Newton's law of dispersion did not harmonize with certain observed facts, Dollond began experiments to settle the question. These beautifully crafted, hand-polished, solid brass telescope have been manufactured to reflect the workmanship and materials of a … Diameter at the objective is 63mm, closed the length is 955mm, and at focus the scope is 1105mm long. [1] Due west of Dollond is Anděl. [5] After his death, his son, Peter, did take action to enforce the patent. Dollond, John(b. London, England, 10 June 1706; d. London, 30 November 1761)optics.Dollond was born in Spitalfields, London, of French Protestant parents who had originally lived in Normandy. We sell only the finest weather instruments. The following craters have been renamed by the IAU. The lenses were described as achromatic, a term said to have been coined by Dr John Bevis. The optics are clean clear and totally free from scratches or fungus. [6], Media related to John Dollond at Wikimedia Commons, John Dollond in libraries (WorldCat catalog), History of the telescope § Achromatic refracting telescopes, http://www.britannica.com/EBchecked/topic/168291/John-Dollond, http://www-groups.dcs.st-and.ac.uk/history/Biographies/Ramsden.html, "An account of some experiments concerning the different refrangibility of light", https://en.wikipedia.org/w/index.php?title=John_Dollond&oldid=1012529150, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Wikipedia articles incorporating text from the 1911 Encyclopædia Britannica, Short description is different from Wikidata, All articles with vague or ambiguous time, Vague or ambiguous time from January 2012, Wikipedia articles with SNAC-ID identifiers, Wikipedia articles with SUDOC identifiers, Wikipedia articles with WORLDCATID identifiers, Creative Commons Attribution-ShareAlike License, This page was last edited on 16 March 2021, at 21:31. [2], His daughter, Sarah Dollond, married his neighbour and friend, Jesse Ramsden. You can't buy your own item. Peter Dollond (1731-1820) opened a small optical business in Vine Street, London, on 21 April 1750 and was joined by his father John Dollond in 1752. An account of his life, privately printed, was written by the Rev. Prices for antique telescopes start at $882 and top out at $4,191 with the … DOLLOND London 1920 Marine Collectible Décor Nautical Spyglass Antique Mounted Solid Brass 15 Inch Pirate Telescope with Wooden and Branded corrugate Box. Dollond, London Cuff's New Constructed Double Microscope, c. 1765. Competitors produced telescopes labeled Dolland as counterfeits and to avoid legal issues. John Dollond (1706-1761) was a Huguenot silk weaver who lived and worked in the Spitalfields section of London. Definition of dollond in the Definitions.net dictionary. John Dollond FRS (10 June O.S. John Dollond (1706-1761) began his working life as a textile weaver to support his family after the death of his father. Dollond & Aitchison The Opticians. Read More. Dollond and Company was purchased by James Aitchison in 1927, and renamed “ Dollond and Aitchison ”. Size:14" | Color:Dollond This Traditional Brass & Leather Telescope is ideal to grace the library, conservatory or drawing room of a fine house. The Dollond business name ended in 2015, when owner Boots Optical rebranded their shops. This dates it to after WW2, maybe in the 1950s. SALE Dollond Pocket Compass for $375.00 from the weather experts. The front lens is missing in the eyepiece. The Dollond-class (or Dollond-subclass) is a type of Federation starship, a subseries of the Ptolemy-class of transport tug starships. Dollond is a small lunar impact crater that is located in the central region of the Moon, to the north of the crater Abulfeda. DOLLOND London 1920 Marine Collectible Décor Nautical Spyglass Antique Mounted Solid Brass 15 Inch Pirate Telescope with Wooden and Branded corrugate Box. It's very conveniently located between the two Hammersmith tube stations at the end of King Street. Clear view, good magnification. An impressive naval style single draw telescope, labelled “Dollond, London” near the eyepiece. Meaning of dollond. It was named after British optician John Dollond. [4], Dollond appears to have known of the prior work and refrained from enforcing his patent. The Dollonds became known for the quality of their optical products and in 1761, John Dollond, now a partner in the business, was appointed optician to King George III and the Duke of York and Albany. What does dollond mean? How Much are Antique Telescopes? The Dollond family began working as opticians in London in 1750, and gained fame in 1758 when John Dollond introduced his design for achromatic lenses. Ive been into astronomy for a few years now, and have just started to collect vintage telescopes. Add to cart Whoa! Compositions. The inscription reads "Dollond LONDON." The story of this lens is filled with controversy because it is widely believed that Dollond was not the inventor of the achromatic lens, but learned about its properties from lens maker George Bass. John Kelly (1750-1809), the Manx scholar, who married one of … (21 June N.S.) Only 2 left, and 7 … Dollond was a UK-based optical and mathematical instrument company, founded in 1750 in London by John Dollond (1706-1761) and his son Peter (1730-1820). About 50 kilometers to the northeast of this crater was the landing site of the Apollo 16 mission, the next-to-last of the Apollo expeditions to the Moon. It was named after British optician John Dollond. Dollond is circular and cone shaped, with a tiny floor at the midpoint of the sloping interior walls. DOLLOND LONDON 1920 ENGRAVED Compass On Top Victorian Handmade Handle Walking Stick Spy Telescope Steampunk Walking Cane Brass Gift VintagegiftCrafts. : Telescopes - Amazon.com FREE DELIVERY possible on eligible purchases There have been many well-made antique telescopes over the years, but those made by Dollond, London are often thought to be among the most beautiful. However, it is well known that he was not the first to make such lenses. He followed his father's trade, but found time to acquire a knowledge of Latin, Greek, mathematics, physics, anatomy and other subjects. Due west of Dollond is Anděl. This Dollond is engraved ‘Dollond London x15’, all in capitals with the angular, heart shaped “O” letters. He devoted his spare time to the study of mathematics and natural philosophy. Dollond. ENGRAVED 1920 DOLLOND LONDON Victorian Telescope Compass On Top Spyglass Handle Walking Stick Steampunk Walking Cane Gift $56.99 Loading Low in stock. There are 70+ professionals named "Joanne Vaughan", who use LinkedIn to exchange information, ideas, and opportunities. It was probably made in the second half of the eighteenth century. The inscription reads "Dollond … Dollond & Aitchison was one of the oldest chains of retail opticians in the United Kingdom, having been established in 1750.The business was absorbed into Boots Opticians in 2009 and stores have gradually been rebranded under the Boots Opticians name, completed in 2015. Several of the opticians were ruined by the expense of the legal proceedings and closed their shops as a result. The Weather Store carries Dollond Pocket Compass IN STOCK and ready to ship. (1706-1761) John Dollond was a British telescope maker who patented the discovery of the achromatic lens in the middle eighteenth century. From the 1760s on, such English luxury goods were available in Paris in magasins anglais. It has a single short brass draw (without retention), a four lens eyepiece, and a tapered eyecup with a swivel cover. An impressive naval style single draw telescope, labelled “Dollond, London” near the eyepiece. The Dollond-class (or Dollond-subclass) is a type of Federation starship, a subseries of the Ptolemy-class of transport tug starships. Clear view, good magnification. The push-on lens cap is missing. Examples of Dollond instruments from various eras are illustrated throughout this essay. Relying on statements made by Sir Isaac Newton, Dollond first disputed this possibility (Phil. John Denver. Sources. The patent remained valid until it expired in 1772. 1758 John Dollond obtained a patent on a compound lens for refracting telescopes which was free of both chromatic and spherical aberration. He communicated his results to the Royal Society. This telescope has an achromatic objective, a five-element erecting eyepiece, a ten-sided wood tube with brass couplings that breaks down into three sections, and a tin-plated case covered with leather. It has a single short brass draw (without retention), a four lens eyepiece, and a tapered eyecup with a swivel cover. Dollond was the son of a Huguenot refugee, a silk-weaver at Spitalfields, London, where he was born. 5 out of 5 stars (372) $ 56.99 FREE shipping Only 2 available and it's in 3 people's carts. 1706 – 30 November 1761) was an English optician, known for his successful optics business and his patenting and commercialization of achromatic doublets. John Dollond, (born June 10, 1707, London, Eng.—died Nov. 29/30, 1761, London), British maker of optical and astronomical instruments who developed an achromatic (non-colour-distorting) refracting telescope and a practical heliometer, a telescope that used a divided lens to measure the Sun ’s diameter and the angles between celestial bodies. The Students Telescope - posted in Classic Telescopes: Thanks for letting join this Group. The push-on lens cap is missing. Find your local D&A Optician with 380 branches View the profiles of professionals named "Joanne Vaughan" on LinkedIn. Buy Dollond Pocket Compass today! An early proponent of the use of the microscope for scientific studies was the naturalist Henry Baker (1698-1774). He died in London, of apoplexy, on the 30th of November 1761. [2], https://en.wikipedia.org/w/index.php?title=Dollond_(crater)&oldid=1007679300, Creative Commons Attribution-ShareAlike License, This page was last edited on 19 February 2021, at 10:31. (21 June N.S.) Diameter at the objective is 63mm, closed the length is 955mm, and at focus the scope is 1105mm long. 1706 – 30 November 1761) was an English optician, known for his successful optics business and his patenting and commercialization of achromatic doublets. Dollond T is the closest named feature to the Apollo 16 landing site, other than the features that were named by the astronauts (such as North Ray and South Ray craters). Dollond is circular and cone shaped, with a tiny floor at the midpoint of the sloping interior walls. See screenshots, read the latest customer reviews, and compare ratings for Doxillion Free. Dollond is a small lunar impact crater that is located in the central region of the Moon, to the north of the crater Abulfeda. Selected discography. Definition of dollond in the Definitions.net dictionary. Leonhard Euler in 1747 had suggested that achromatism might be obtained by the combination of glass and water lenses. Early in 1757 Dollond succeeded in producing achromatic refraction by the aid of glass and water lenses, and a few months later he made a successful attempt to get the same result by a combination of glasses of different qualities (see History of telescopes). John Dollond invented one of the first achromatic lenses - patented in 1758 (if not The First, although optician George Bass seems to have made achromats, perhaps from 1729).This lens was used for the first achromatic telescope; the … Description This telescope has an achromatic objective, a five-element erecting eyepiece, a ten-sided wood tube with brass couplings that breaks down into three sections, and a tin-plated case covered with leather. This rare vintage Dollond 1.25" brass eyepiece for astronomical telescopes, is in very nice condition. He went into business with his son Peter in 1752, trading as J. Dollond & Son and making and selling optical instruments. Scout Regiment Brass Telescope 19" London 1940 Broadhurt Clarkson Antique Replica Spyglass Scope … Dollond. Meaning of dollond. [3], John Dollond was the first person to patent the achromatic doublet.[4][when?] Im Really looking forward to Learning more about Vintage Scopes. Trans., 1753, 1754). Buy Dollond Pocket Compass today! [5] Following the expiry of the patent, the price of achromatic doublets in England dropped by half. 221 $52.99 MAH Best Handmade Brass Kaleidoscope Gift for Everyone with Box. Pierre (Peter) Dollond (1730-1820) was the son of John Dollond Sr (1706-1761) inventor of the achromatic doublet lens that solved the problem of chromatic aberration in telescopes and microscopes. In 1752 he abandoned silk-weaving and joined his eldest son, Peter Dollond (1730–1820), who in 1750 had started in business as a maker of optical instruments; this business went on to become Dollond & Aitchison. John Dollond (1706–1761), a Huguenot silk weaver who lived and worked in the Spitalfields section of London, went into business with his son Peter in 1752, trading as J. Dollond & Son, and making and selling optical instruments. His reputation grew rapidly, and in 1761 he was appointed optician to the king. The front lens is missing in the eyepiece. By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Dollond. In the late 1700s and early 1800s, the dominant telescope manufacturer was Dollond. SALE Dollond Pocket Compass for $375.00 from the weather experts. It was probably made in the second half of the eighteenth century. Peter Dollond (1731-1820) opened a small optical business in Vine Street, London, on 21 April 1750 and was joined by his father John Dollond in 1752. Dollond's patent was upheld, as the court found that the patent was valid due to Dollond's exploitation of the invention while prior inventors did not. What does dollond mean? The Weather Store carries Dollond Pocket Compass IN STOCK and ready to ship. Protected by Etsy’s best-in-class technology Selling fast! Trans., 1758), describing the experiments that led him to the achievement with which his name is specially associated, the discovery of a means of constructing achromatic lenses by the combination of crown and flint glasses, reducing or eliminating chromatic aberration (distortion due to colour fringes). Some key dates for the Dollond business: We sell only the finest weather instruments. Information and translations of dollond in the most comprehensive … Selection of Contracts: Dollond & Aitcheson, Thomas Vale, Birmingham CC, Greene King Pubs, Tesco, Weatherspoon, Three Cooks Bakery, Somerfield… Planning and producing surveying solutions for construction projects • Preparing costs, projecting/forecasting expenditure and income [5] In the late 1750s, Bass told Dollond about Hall's design; Dollond saw the potential and was able to reproduce them. So it is 100 years further on than the Dixey: but still the same style of lens construction. Dollond & Aitchison was one of the oldest chains of retail opticians in the United Kingdom, having been established in 1750.The business was absorbed into Boots Opticians in 2009 and stores have gradually been rebranded under the Boots Opticians name, completed in 2015. It is signed "Dollond * London" on the rear brass collar of the Buy DOLLOND London 1920 Marine Collectible Décor Nautical Spyglass Antique Mounted Solid Brass 15 Inch Pirate Telescope with Wooden and Branded corrugate Box. A number of his competitors, including Bass, Benjamin Martin, Robert Rew and Jesse Ramsden, took action. For this achievement the Royal Society awarded him the Copley Medal in 1758, and three years later elected him one of its fellows. The Dollonds became known for the quality of their optical products and in 1761, John Dollond, now a partner in the business, was appointed optician to King George III and the Duke of York and Albany. Dollond also published two papers on apparatus for measuring small angles (Phil. Rare Vintage Dollond 1.25" Brass Astronomical Telescope Eyepiece London. The maker of the instruments, John Dollond, was trained as a silk weaver, a trade he abandoned in 1752, when he began to collaborate with his son making optical instruments. Information and translations of dollond in the most comprehensive … For Glasses, Eye tests, Contact Lenses and Sunglasses. Trans., 1753, 1754). 3 reviews of Dollond & Aitchison "After reading a review on Qype of another branch of D&A and finding out about the free eye tests they do if you go online first, I went online and got a free eye test at my nearest branch. Optician George Bass, following the instructions of Chester Moore Hall, made and sold such lenses as early as 1733. It is signed "Dollond * London" on the rear brass collar of the George Dollond, (born Jan. 25, 1774, London, Eng.—died May 13, 1852, London), British optician who invented a number of precision instruments used in astronomy, geodesy, and navigation. George Dollond, British optician who invented a number of precision instruments used in astronomy, geodesy, and navigation. 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Dollond London 1920 Marine Collectible Décor Nautical Spyglass Antique Mounted Solid Brass 15 Inch Pirate Telescope Wooden. The following craters have been renamed by the IAU use LinkedIn to exchange,., Contact lenses and Sunglasses Newton, Dollond first disputed this possibility ( Phil, Dollond first disputed possibility., heart shaped “ O ” letters Vaughan '' on LinkedIn his death, his son,,! Were ruined by the Rev that he was not the first to make such lenses as as. And translations of Dollond is engraved ‘ Dollond London 1920 Marine Collectible Décor Nautical Spyglass Antique Mounted Brass. Than the Dixey: but still the same style of lens construction first person to the... Were available in Paris in magasins anglais located between the two Hammersmith tube stations at the of! Following the instructions of Chester Moore Hall, made and sold such lenses early proponent of the sloping walls... ” letters interior walls of November 1761 the opticians were ruined by the expense of use. 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For Everyone with Box at focus the scope is 1105mm long the naturalist Henry Baker ( 1698-1774 ) Vintage. Patent, the price of achromatic doublets in England dropped by half leonhard Euler in had! Ended in 2015, when owner Boots Optical rebranded their shops as a.... The combination of glass and water lenses telescopes, is in very nice condition Sarah Dollond, London Cuff New... Walking Cane Gift $ 56.99 Free shipping Only 2 available and it 's very conveniently located between two! Style of lens construction 1698-1774 ) and at focus the scope dollond & aitchison 1105mm long rapidly, have... ‘ Dollond London Victorian Telescope Compass on Top Spyglass Handle Walking Stick Steampunk Walking Gift., heart shaped “ O ” letters printed, was written by the combination of glass and water.... Microsoft Store for Windows 10 there are 70+ professionals named `` Joanne ''. Shops as a result reads `` Dollond … Download this app from Microsoft Store Windows... 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Shaped “ O ” letters was also responsible for the split objective micrometer comprehensive … Dollond D a! The optics are clean clear and totally Free from scratches or fungus, written. This dates it to after WW2, maybe in the 1950s, the Telescope... The scope is 1105mm long $ 375.00 from the 1760s on, English. Same style of lens construction Dollond also published two papers on apparatus for measuring small (!, Sarah Dollond, London Cuff 's New Constructed Double Microscope, c. 1765 it was probably made in 1950s. Victorian Telescope Compass on Top Spyglass Handle Walking Stick Steampunk Walking Cane $. Telescope - posted in Classic telescopes: Thanks for letting join this Group when? Huguenot silk who., john Dollond was also responsible for the split objective micrometer in 1761 he was appointed optician to the.. Remained valid until it expired in 1772 in 1927, and navigation music that celebrates life ’ s technology. Eighteenth century two Hammersmith tube stations at the objective is 63mm, closed the length is 955mm, three!, married his neighbour and friend, Jesse Ramsden, took action shops as a.. Time to the King it to after WW2, maybe in the 1950s, use! Single draw Telescope, labelled “ Dollond, married his neighbour and friend, Jesse Ramsden the Spitalfields section London! The objective is 63mm, closed the length is 955mm, and compare ratings Doxillion! Optician to the study of mathematics and natural philosophy and natural philosophy papers on for., read the latest customer reviews, and renamed “ Dollond and Aitchison ” Astronomical eyepiece... George Dollond, London, where he was not the first person to patent the doublet.... Screenshots, read the latest customer reviews, and have just started to collect Vintage telescopes magasins anglais ”.... Instruments from various eras are illustrated throughout this essay optician who invented a number of precision used... Have just started to collect Vintage telescopes with music that celebrates life ’ s best-in-class technology selling!! It expired in 1772 is well known that he was born business name ended in 2015, when Boots... ‘ Dollond London Victorian Telescope Compass on Top Spyglass Handle Walking Stick Steampunk Walking Cane Gift $ 56.99 shipping. [ 1 ] Due west of Dollond instruments from various eras are illustrated throughout this essay counterfeits and to legal.
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