Simple Answer:
Anton van Leeuwenhoek made innovations to the simple microscope with a single lens. His microscopes received no special name and were enhancements of the "simple microscope."
Anton van Leeuwenhoek always referred to his instrument as a Vergroot-glas, which translates into magnifying glass.
He also enhanced the overall design of the simple microscope and specimen holder. He constructed at least 25 different designs of the simple microscope. (He rarely used the compound microscope which had been invented 40 years before his birth because his simple microscopes had far greater magnification.)
More:
Though Anton van Leeuwenhoek did not invent the microscope, he did make a great discovery. About 1670, he found that he could form tiny glass beads that were nearly perfect spheres and also capable of high magnification when used in a simple microscope. Indeed, his little glass spheres could magnify an object 250 times (perhaps more), about ten times better than the best compound microscopes of the day.
Beyond the discovery of the methods for making small spherical lenses, van Leeuwenhoek also built microscopes and experimented with their design, addressing the difficult problems of illuminating, holding and viewing the specimens.
He made over 500 optical lenses, though they did not necessarily go into 500 different microscopes. The microscopes themselves were expensive and time consuming to construct, but records indicate possibly as many as two hundred were made. In this process he is said to have created at least 25 variations on the basic design of the microscope.
Only nine of his microscopes are known to exist today.
Though it may have occurred earlier, the first account of using microscopes to study cells occurred in the 17th century. After that, the use of microscopes in research became a popular method.
The first compound microscope was made circa 1590 in The Netherlands. Hans Lippershey, Sacharias Jansen, and Hans Jenssen, all eyeglass makers, have each been given credit for the invention, using two separated lenses to greatly increase magnification. About 1670, Anton van Leeuwenhoek dramatically increased the magnifying power of the simple microscope by creating small spheres of high-quality glass, from which powerful lenses could be made.
Zacharias Jansen invented the microscope. Without it scientists couldn't observe cells.
Zacharias Jansen was a Dutch spectacle-maker who is credited with inventing the first compound microscope around the turn of the 17th century. His invention played a crucial role in advancing the field of microscopy and revolutionized the study of biology and medicine.
Theodor Schwann did not invent the microscope. He was a German physiologist who made significant contributions to the cell theory in the 19th century, but the invention of the microscope is credited to Zacharias Janssen and Hans Lippershey in the late 16th century.
Sacharias Jansen died in 1638.
The compound microscope was developed during the Renaissance by multiple inventors, including Zacharias Janssen and his father Hans. They are often credited with creating the first microscope around 1595 in the Netherlands. These early microscopes featured a simple design using multiple lenses to magnify objects.
Both were developed in The Netherlands.The first true microscope was made around 1595 in Middelburg, The Netherlands, developed by Hans Lippershey or Sacharias Jansen.The first true telescope first appeared in 1608. Again, credit goes to the aforementioned Hans Lippershey and Sacharias Jansen.
he experimented with multiple lens placed in a tube. the object in front of the tube appeared greatly enlarged
Jansen - 1590
Zachariah Jansen invented the first light microscope in 1590.
The first compound microscope was invented in the Netherlands in the late 16th century, with early developments by Hans and Zacharias Janssen. However, it was Antonie van Leeuwenhoek, also from the Netherlands, who made significant advancements in microscope design and was the first to observe bacteria and protozoa using microscopes.
zaccharias jansen
Eugen Sacharias was born in 1906.
Eugen Sacharias died in 2002.
He is the first inventor to invent the compound microscope
It is believed that Zacharias Jansen's father, Hans, helped him build the first microscope in 1595.