Janssen, H.

Japanese: Janssen,H.(英語表記)JanssenH
Janssen, H.

…An optical microscope uses an objective lens to create a magnified real image of a tiny object, which is then further magnified by an eyepiece to create a virtual image at the distance of clear vision. The so-called compound microscope, which is formed by the combination of an objective lens and an eyepiece, is said to have been invented by the Dutch opticians Hans Janssen and his son Zacharias Janssen between 1590 and 1609, and this compound microscope is the basic structure of all microscopes today. In contrast, a magnifying glass-style microscope that uses a single convex lens to magnify an object, such as a magnifying glass, is sometimes called a simple microscope, even if it is a combination of one or several lenses. …

*Some of the terminology references "Janssen, H." are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…光学顕微鏡は,対物レンズによって微小な物体の拡大された実像を作り,これを接眼レンズによってさらに拡大しながら明視の距離に虚像を作るものである。この対物レンズと接眼レンズ両者の組合せによって形成されるいわゆる複式顕微鏡は,オランダの眼鏡師ヤンセン父子(Hans JanssenおよびZacharias Janssen)によって1590年から1609年ころにかけて発明されたといわれ,この複式顕微鏡が今日のすべての顕微鏡の基本的構成となっている。これに対して,1個あるいは数枚の組合せであっても,単一の凸レンズによって物体を拡大して見るいわゆる虫眼鏡などのルーペ形式のものを単式顕微鏡という場合もある。…

※「Janssen,H.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

<<:  Janssen, PJC (English spelling) JanssenPJC

>>:  Janssen, A.

Recommend

Longxu Gorge (English spelling)

The name of a new Chinese drama. This work was pro...

Hysteroscopy

…Be careful not to damage the rectum when inserti...

Hanai (English spelling) Flowering Rush

A perennial plant of the Celastraceae family that ...

Cartesian coordinates

Please see the "Cartesian coordinates" ...

Differential division - Ibunkatsu

…In planarians, which are turbulent worms, the bo...

Appetizer - Zensai

〘noun〙 The dish served at the beginning of a meal....

food segregation

…And two species of herons that live on the same ...

Edo Mushuk

…Uesugi Kagekatsu, considering the importance of ...

al-Madina (English spelling)

…It is called one of the two holy cities of Islam...

Arkose (English spelling)

It was first used by Cordier to describe the Mesoz...

Gottlieb, A. (English spelling) GottliebA

...A group of abstract art that developed in the ...

Amar and the Night Visitors

...In America and Japan, songs such as "Jing...

Argonautai

…the Argonauts are a collective term for the grou...

Prim y Prats, J. (English spelling) PrimyPratsJ

...The intellectuals who had formed a radical and...

Skeleton

An organ that supports and shapes the body. In th...