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Light Up The Night

August 17, 2010

When it comes to a night dive, the picture of divers swinging the hand hold light in the dark reappears in the mind.  In fact, a night dive can fit many needs that only need some lights.  First, divers need supply lights to wear on the equipment on the water or the deck and finish the safety examine before going to diving.  These surface lights depended primarily on the lights on the deck of a diving boat, but it also can be a diving light on the beach diving at night.

Underwater, divers need a diving light to supply for the ideal brightness, usually is hand-hold or head-hold diving light, and the battery capacity need to maintain the diving time.  The light range of diving light can illuminate all the underwater.  Besides, divers who having a night dive carry a back-up light and avoid the dive light damage.  The light beam of these typically small lamps, easy to take diving light and LED light, is a little narrow and can be used for spies on the crack and the depth of the reef on the diving.

The difficulty of the night diving is guidance: seek for ropes for rappelling, anchor cable, the boat and the entrance under the beach.  Many kinds of flashing lights, marks, signal lights and lighthouse can be helped to solve this difficulty.

The other difficulties of the night diving is the following partner.  It’s very important that especially for a group night diving.  From that, many divers have equipped individual mark – chemistry light stick on Regulator or mark on BC, it become a simple mark at any convenient positions.

Finally, if divers who float the place far from the diving boat, need help and have to figure out let .. to see yourself.  At this time, the flashing light is a good way.

提到夜潛,潛水員在黑暗中擺弄手提式潛水燈的畫面便浮現腦海,事實上,夜潛只需要一點燈光就能滿足多種需求。首先,潛水員在水面或甲板上需要足夠的燈光整合穿戴裝備,完成潛水前的安全檢查。這些表面燈光主要是依靠潛水船甲板上的燈光,但也可以是潛水員在夜晚進行沙灘潛水時自帶的潛水燈。

在水下,潛水員需要一個主潛水燈來提供理想的亮度,通常是手提式或頭戴式,電池的電量要足以維持整個潛水的時間。主潛水燈的照明範圍要足夠寬廣以照亮大片的水下地形。此外,夜潛的潛水員要攜帶一個後備潛水燈,以防主潛水燈失靈。便攜式潛水燈和LED燈這些典型的小型燈的光束略窄,可用於日潛時窺探裂縫和珊瑚礁深處。

導航是夜潛的難題︰尋找下降繩、錨索、水面上的船、沙灘下潛的入口。種類繁多的閃光燈、標記、信號燈和燈塔都能幫助解決這個難題。

追蹤潛伴是夜潛的另一難題。尤其是一群人夜潛時,突顯自己使潛伴能跟隨是十分重要的。為此,許多潛水員裝備了個人標記──調節器上的化學螢光棒或BC上的電式記號,放在任何方便的位置都能變成簡單便捷的標記。

最後,如果潛水員上浮的地方離潛水船過遠,需要援助,就必須想辦法讓船員看到自己,這時,閃光燈是一個好方法。

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