Local records indicate he was born in 1585 although a date of birth as early as 1580 or as late a 1588 are also given. This was a time of great embarrassment to John since the Nazarite vow forbade contact with the dead, even in one's own family. A few history specialists contend Hans Janssen helped assemble the magnifying lens, as Zacharias was a youngster during the 1590s. Hans and Zacharias created the first microscopes through experimenting with different lenses placed at the ends of tubes. Rumor has it Lipperhey’s son actually discovered the correct lens combination – he put together two lenses and “spied” a local church steeple . Cell Theory. Other articles where Hans Jansen is discussed: diagnosis: Historical aspects: …century by the Dutch optician Hans Jansen and his son Zacharias. robert hooke 1665 1) Hans and Zacharias Janssen were known for inventing the compound optical microscope. Zacharias Janssen was born in Hague, as a son of Hans Martens and Maeyken Meertens who were most probably from Antwerp, Belgium. In the early 17th century, Italian philosopher, astronomer, and mathematician Galileo constructed a microscope and a telescope. This contributed to the cell theory by making it easier and more practical to observe cells. After birth the family moved to Middelburg, Netherlands, and young Zacharias Janssen grow up on the street, constantly breaking the law and being chased by the authorities. Start studying 1.1. In his letter, Boreel said Zacharias Janssen began keeping in touch with him about a magnifying instrument in the mid 1590s, in spite of the fact that Boreel just observed a magnifying lens himself years after the fact. Some historians argue that Lipperhey stole the idea from Hans and Zacharias Janssen , other spectacle … The discipline of microbiology would not exist, or would be a much smaller branch of science, without the microscope. Hans and Zacharias Janssen were a Dutch father and son accredited with the creation of the first microscope. Sometime around 1595, probably while working as a teenaged apprentice in his father’s lens making operation, Zacharias discovered that two lenses used together create greater magnification than a single lens. Zacharias Janssen was born in Holland around 1580; no records exist citing the exact date. After an illness of several months Zacharias died in July, A.D. 12, when John was just past eighteen years of age. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Zacharias Janssen’s father, Hans, was one of many entrepreneurs using this technology to make eyeglasses. He worked with his father, Hans, an eyeglass maker. Zacharias Janssen 1590 Janssen’s invention of the microscope , with the aid of his father Hans, allowed English scientist Robert Hooke to use a primitive microscope to view the cell walls of a piece of cork in 1663. 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