国产成人精品高清久久_好姑娘影视在线观看高清_99久久久久久久久_欧美涩涩网_久久国产精品91_9色网站

德國Compur Monitors
COMPUR MONITORS有毒有害氣體檢測產品
Today

Today Compur Monitors manufactures a wide range of portable and stationary gas warning systems for toxic and combustible gases and oxygen. The reliable detection of these gases is essential for the safety and health of many employees in various industries like chemical plants, refineries, wastewater treatment plants, fire departments or even breweries worldwide.
 

1978

Since 1978, the Compur Monitors R & D department has developed sensors and instruments for the detection of toxic and combustible gases. The basic design of these sensors goes back to the engineering department of Bayer. This part of the long Compur tradition is the root from which Compur Monitors has emerged. After having become a fully owned subsidiary of Bayer AG in 1986 the now privately owned company “Compur Monitors GmbH & Co KG” was finally founded in 1994.

1971

In 1971 a device called “picture watching machine” was developed. It worked similar to the now well-known video. As a consequence, Carl Zeiss bought the company. During this time Compur made optical analysers for medical applications, a testing machine for ampoules, and the first answering machines. When the shutter business finally ceased, a joint venture with Bayer AG started.
 

1951

In 1951 the Compur camera shutter was further improved. It could now be synchronized to trigger a flashlight.

WW I

As the Compur shutter requested a high precision manufacturing process, Deckel had to develop appropriate machines. In these days such machines were not yet commercially available. These machines should become another important business branch of Deckel after World War I. Fuel injection pumps were another newly developed important branch, which were important for the growing automobile industry.


1911

In 1911, a clock was added to this shutter, called “Compur shutter”, a design which is nowadays still used in the famous Hasselblad cameras. The name “Compur” is a combination of the words “Compound” for the central shutter and the German word “Uhr” for clock. This expression was used as the shutter could now stay open for an adjustable time: it worked with the precision of a clock. This technology was state-of-the-art until the 70′s when film material with a higher tolerance to light exposure variations came onto the market.

Turn of the century

The weak point of these cameras was the shutter as there was no possibility to adjust the exposure time. Therefore it was impossible to take snap-shots. The photographic results were more or less accidental depending on the duration of the manual opening of the box - despite the fact that the light sensitive material itself was already good enough to take good pictures. Consequently in 1902 Deckel developed the first mechanic central shutter, called the “Compound” shutter. This shutter opened and closed the light access rapidly driven by a spring.
 

1898

Compur Monitors GmbH & Co. KG
Originally the company was founded by Friedrich Deckel in 1898 as a small back alley mechanical shop in Munich.

In the very beginning Deckel had to accept any odd job just to survive, but his real ambition had always been to develop and manufacture his own products. The opening of his shop in downtown Munich coincided with the beginning popularity of amateur photography. The first “travelling cameras” came onto the market – simple boxes made of polished wood. In these boxes a coated glass plate was exposed to light focussed by a lens.