Hans Lippershey that time he became a master lens grinder and spectacle maker and established a shop. He remained in Middelburg until his death, in September 1619. Hans Lippershey is known for the earliest written record of a refracting telescope, a patent he filed in 1608. His work with optical devices grew out of his work as a spectacle maker, an industry that had started in Venice and Florence in the thirteenth century, and later expanded to the Netherlands and Germany. Lippershey applied to the States General of the Netherlands on 2 October 1608 for a patent for his instrument ""for seeing
Jacob Metius well after the dates Metius is known to have been making telescopes. One version is stated in Charles Hutton's 1795 book "Mathematical and Philosophical Dictionary" : Jacob Metius Jacob (Jacobus; sometimes James) Metius (after 1571–1624/1631) was a Dutch instrument-maker and a specialist in grinding lenses. He was born and died in Alkmaar and was the brother of Adriaan Adriaanszoon (simply called Metius). He is one of three people associated with the invention of the telescope, the other two being Hans Lippershey and Zacharias Janssen. Not much of him is known besides his 1608 patent application for the invention. He died