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Every major field of science has benefited from the use of some form of microscope, an invention that dates back to the late 16th century and a modest Dutch eyeglass maker named Zacharias Janssen.

Every major field of science has benefited from the use of some form of microscope, an invention that dates back to the late 16th century and a modest Dutch eyeglass maker named Zacharias Janssen.

Every major field of science has benefited from the use of some form of microscope, an invention that dates back to the late 16th century and a modest Dutch eyeglass maker named Zacharias Janssen.

The working principle of a simple microscope is that when a sample is placed within the focus of the microscope, a virtual, erect and magnified image is obtained at the least distance of distinct vision from the eye that is held at the lens.

The working principle of a simple microscope is that when a sample is placed within the focus of the microscope, a virtual, erect and magnified image is obtained at the least distance of distinct vision from the eye that is held at the lens.

Antoni van Leeuwenhoek (1632-1723): father of microscopy 2003 Nov;44(11):557-8.

Antoni van Leeuwenhoek (1632-1723): father of microscopy 2003 Nov;44(11):557-8.

The working principle of a simple microscope is that when a sample is placed within the focus of the microscope, a virtual, erect and magnified image is obtained at the least distance of distinct vision from the eye that is held at the lens.

Antoni Van Leeuwenhoek (1635-1723) was a Dutch tradesman who became interested in microscopy while on a visit to London in 1666. Returning home, he began making simple microscopes of the sort that Robert Hooke had described in his, Micrographia, and using them to discover objects invisible to the naked eye.

Antoni Van Leeuwenhoek (1635-1723) was a Dutch tradesman who became interested in microscopy while on a visit to London in 1666. Returning home, he began making simple microscopes of the sort that Robert Hooke had described in his, Micrographia, and using them to discover objects invisible to the naked eye.

Antoni van Leeuwenhoek (1632-1723): father of microscopy 2003 Nov;44(11):557-8.

A father-son duo, Zacharias and Han Jansen, created the first compound microscope in the 1590s. Anton van Leeuwenhoek created powerful lenses that could see teeming bacteria in a drop of water.

A father-son duo, Zacharias and Han Jansen, created the first compound microscope in the 1590s. Anton van Leeuwenhoek created powerful lenses that could see teeming bacteria in a drop of water.

Lens Crafters Circa 1590: Invention of the Microscope. Every major field of science has benefited from the use of some form of microscope, an invention that dates back to the late 16th century and a modest Dutch eyeglass maker named Zacharias Janssen.

Antoni Van Leeuwenhoek (1635-1723) was a Dutch tradesman who became interested in microscopy while on a visit to London in 1666. Returning home, he began making simple microscopes of the sort that Robert Hooke had described in his, Micrographia, and using them to discover objects invisible to the naked eye.

Lens Crafters Circa 1590: Invention of the Microscope. Every major field of science has benefited from the use of some form of microscope, an invention that dates back to the late 16th century and a modest Dutch eyeglass maker named Zacharias Janssen.

Rudolf Virchow (1821–1902) is generally recognized to be the father of microscopic pathology. Most early pathologists were also practicing physicians or surgeons.

A father-son duo, Zacharias and Han Jansen, created the first compound microscope in the 1590s. Anton van Leeuwenhoek created powerful lenses that could see teeming bacteria in a drop of water.

Rudolf Virchow (1821–1902) is generally recognized to be the father of microscopic pathology. Most early pathologists were also practicing physicians or surgeons.

It's not clear who invented the first microscope, but the Dutch spectacle maker Zacharias Janssen (b. 1585) is credited with making one of the earliest compound microscopes (ones that used two lenses) around 1600. The earliest microscopes could magnify an object up to 20 or 30 times its normal size.

Lens Crafters Circa 1590: Invention of the Microscope. Every major field of science has benefited from the use of some form of microscope, an invention that dates back to the late 16th century and a modest Dutch eyeglass maker named Zacharias Janssen.

It's not clear who invented the first microscope, but the Dutch spectacle maker Zacharias Janssen (b. 1585) is credited with making one of the earliest compound microscopes (ones that used two lenses) around 1600. The earliest microscopes could magnify an object up to 20 or 30 times its normal size.

Although Hooke did not make his own microscopes, he was heavily involved with the overall design and optical characteristics. The microscopes were actually made by London instrument maker Christopher Cock, who enjoyed a great deal of success due to the popularity of this microscope design and Hooke's book.

Rudolf Virchow (1821–1902) is generally recognized to be the father of microscopic pathology. Most early pathologists were also practicing physicians or surgeons.

Although Hooke did not make his own microscopes, he was heavily involved with the overall design and optical characteristics. The microscopes were actually made by London instrument maker Christopher Cock, who enjoyed a great deal of success due to the popularity of this microscope design and Hooke's book.

In this microscope, a single image is magnified by the objective lenses and then is split so that it can be observed by both eyes, creating a “flat” 2D image. The microscope also comes with three objective lenses, a substage condenser lens, a built-in lamp and a micrometer stage.

It's not clear who invented the first microscope, but the Dutch spectacle maker Zacharias Janssen (b. 1585) is credited with making one of the earliest compound microscopes (ones that used two lenses) around 1600. The earliest microscopes could magnify an object up to 20 or 30 times its normal size.

In this microscope, a single image is magnified by the objective lenses and then is split so that it can be observed by both eyes, creating a “flat” 2D image. The microscope also comes with three objective lenses, a substage condenser lens, a built-in lamp and a micrometer stage.

Antoni van Leeuwenhoek (1632-1723): father of microscopy.

Antoni van Leeuwenhoek (1632-1723): father of microscopy.

Although Hooke did not make his own microscopes, he was heavily involved with the overall design and optical characteristics. The microscopes were actually made by London instrument maker Christopher Cock, who enjoyed a great deal of success due to the popularity of this microscope design and Hooke's book.

Antonie van Leeuwenhoek made more than 500 optical lenses. He also created at least 25 single-lens microscopes, of differing types, of which only nine have survived. These microscopes were made of silver or copper frames, holding hand-made lenses. Those that have survived are capable of magnification up to 275 times.

Antonie van Leeuwenhoek made more than 500 optical lenses. He also created at least 25 single-lens microscopes, of differing types, of which only nine have survived. These microscopes were made of silver or copper frames, holding hand-made lenses. Those that have survived are capable of magnification up to 275 times.

In this microscope, a single image is magnified by the objective lenses and then is split so that it can be observed by both eyes, creating a “flat” 2D image. The microscope also comes with three objective lenses, a substage condenser lens, a built-in lamp and a micrometer stage.

Antoni van Leeuwenhoek (1632-1723): father of microscopy.

Antonie van Leeuwenhoek made more than 500 optical lenses. He also created at least 25 single-lens microscopes, of differing types, of which only nine have survived. These microscopes were made of silver or copper frames, holding hand-made lenses. Those that have survived are capable of magnification up to 275 times.