Taschenlampe: Auch als Torch bezeichnet, ist ein handgef\u00fchrtes elektronisches Beleuchtungsger\u00e4t. Eine typische Taschenlampe verf\u00fcgt \u00fcber eine batteriebetriebene Gl\u00fchbirne, einen Fokussierspiegel und ein griffartiges Geh\u00e4use f\u00fcr den Gebrauch in der Hand. Obwohl sie recht einfach konstruiert war, wurde sie erst im sp\u00e4ten 19. Jahrhundert erfunden, da sie die Erfindung der Batterie mit der der Gl\u00fchbirne kombinieren musste. Anfangs wurde sie im Englischen \u201eflashlight\u201c genannt, da die Batterieleistung nicht ausreichte, was kurzlebiges Licht bedeutete.<\/p>\n
Das Prinzip der Taschenlampe: Ein Pol der Gl\u00fchbirne der Taschenlampe ber\u00fchrt den Pluspol der Batterie, der andere Pol der Gl\u00fchbirne ist mit einem Ende des Schalters verbunden und das andere Ende des Schalters ist mit dem Minuspol des Schalters verbunden. Wenn der Schalterknopf gedr\u00fcckt wird, bildet die Batterie \u00fcber den Schalter einen Reihenstromkreis mit der Gl\u00fchbirne, und der Strom der Batterie flie\u00dft durch den Wolframfaden der Gl\u00fchbirne, wodurch diese sich erw\u00e4rmt und Licht abgibt.<\/p>\n
Die Unterscheidung zwischen guten und schlechten Taschenlampen:
\n1. Taschenlampenbatterie. Es gibt zwei Arten von Nickelbatterien und Lithiumbatterien, die je nach der tats\u00e4chlichen Situation ausgew\u00e4hlt werden k\u00f6nnen.
\n2. Gl\u00fchbirnen. Wenn die Gl\u00fchbirne ausgeschaltet ist, ist es f\u00fcr das blo\u00dfe Auge schwierig zu unterscheiden, ob sie gut oder schlecht ist. Sie k\u00f6nnen die Konsistenz der Gl\u00fchbirne erkennen, wenn sie eingeschaltet ist.
\n3. Blende. Die Blende einer guten LED-Taschenlampe ist ein gleichm\u00e4\u00dfiger Kreis, w\u00e4hrend der Lichtfleck einer schlechten LED-Taschenlampe in die beiden ungleichm\u00e4\u00dfig verteilten Farben Gelb und Blau unterteilt ist.
\n4. Helligkeit. Eine gute LED-Taschenlampe hat eine hohe Helligkeit und ein langsames Abklingen.
\n5. Wasserdicht. Eine gute LED-Taschenlampe ist wasserdicht und sto\u00dffest, d. h. sie ist sturzsicher.<\/p>","protected":false},"excerpt":{"rendered":"
Torch: also referred to as torch, is a handheld electronic lighting tool. A typical flashlight has a battery-operated bulb and 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