?長波黑光燈用于古董的檢驗Uses of Blacklights for Antique inspection

Uses of Blacklights(Long Wavelength Ultraviolet Lights)Black lights produce Long wave Ultra Violet, or UV (320 nm - 400 nm). Many materials fluoresce under ultraviolet lighting producing colors or light that our eyes can see, and making things that might go undetected visible to us. Blacklight fluorescent inspection processes make jobs easier for document inspectors, quality control engineers, forensic scientists, fire officers and auction houses to name but a few. With UV blacklight, hairline cracks can be detected in aircraft undercarriages, automotive steering systems and many other life-critical components. Portable Blacklight (6", 4 watt, high wavelength UV light) ，In the field of forensics UV blacklight helps unearth vital evidence at crime scenes and plays an important role in identifying the cause of fires. Inspection of works of art under UV blacklight can reveal imperfections and evidences of restoration and repairs to art, pottery, glass and detecting old from reproduction -- an important aspect of authentication for valuation and sale. Most commonly available blacklights emit Ultra Violet light at a wavelength just above the visible range. Typically, this is around 340 nm while the visible range is roughly 400 nm to 700 nm. Blacklights produce fluorescence which is kind of magical. You point one light at certain targets and totally different colors appear. One characteristic of fluorescence is the intense, highly saturated colors that it produces making the object appear to have pure colors.

長波黑光燈的應用（長波長紫外線燈）黑光燈產生長波紫外線（320 nm - 400 nm）。許多材料在紫外線照射下發出熒光，發出我們的眼睛可以看到的顏色或光線，并且使可能不被察覺的事物可見。黑光熒光檢測流程使文件檢查人員，質量控制工程師，法醫科學家，消防官員和拍賣行更容易工作，僅舉幾例。使用紫外線黑光燈，可以在飛機起落架，汽車轉向系統和許多其他生命關鍵部件中檢測到細紋。便攜式黑光燈（6“，4瓦，高波長紫外燈），在法醫領域，紫外線黑光燈有助于在犯罪現場發現重要證據，并在識別火災原因方面發揮重要作用。揭示了藝術品，陶器，玻璃的恢復和修復的缺陷和證據，以及從生殖檢測到的老舊問題 - 這是驗證估價和銷售的一個重要方面，大多數常見的黑光燈在可見光范圍內發射紫外光，這是約340 nm，而可見光范圍大約是400 nm到700 nm，Blacklights產生的熒光是一種神奇的，你指向某一個目標的一個光線，并出現完全不同的顏色，熒光的一個特點是強烈，高飽和的顏色它產生使對象看起來有純凈的顏色。

Black light uses黑光燈的應用：

?Antique inspection古董檢查
Black light testing is a common practice used to authenticate antiques, to determine authenticity and the extent of repairs. Blacklights are used in evaluating antiques because the ultraviolet rays they produce react differently to different materials. Because of this interesting characteristic, things that are invisible to the naked eye become visible under the blacklight. Different chemical properties become apparent under a blacklight, modern paint will fluoresce or glow under a black light, older paints will not, you can use this to determine whether a painted object is an antique or a newer reproduction as well as to determine whether a piece has been "touched up" and if so, how extensive was the repair. The same technique can be used to detect repairs on antique porcelain as the old finish will not glow under a blacklight, and the newer material in the repair will.
Some antique glassware will glow under the blacklight as well, Vaseline glass will glow because it contains uranium oxide. A blacklight can be used to test many types of antiques. Here are some examples: Cut Glass: Authentic American Brilliant period cut glass fluoresces yellow; reproductions have no reaction or show a blue-white. You should pre-test to gain experience and remember the blacklight is just another tool to use in determination of authenticity. Cast Iron: Most new paint on most new cast iron fluoresces; old paint on old cast iron rarely fluoresces. You can also detect newly painted repairs as well.
黑光測試是用于驗證古董，以確定真實性和修復程度的常見做法。黑光用于評估古董，因為它們產生的紫外線對不同的材料反應不同。由于這個有趣的特點，肉眼看不見的東西在黑光下變得可見。不同的化學性質在黑光下變得明顯，現代的油漆會在黑光下發出熒光或發光，而舊的油漆不會，你可以用它來確定被涂物體是否是古董或更新的復制品，已經“摸起來”了，如果是這樣的話，修理的范圍有多廣泛。同樣的技術可以用來檢測古董瓷器的修復，因為舊的飾面在黑光下不會發光，修復后的新材料也會發生。一些古色古香的玻璃器皿也會在黑光下發光，凡士林玻璃會發光，因為它含有氧化鈾。黑光可以用來測試許多類型的古董。這里有一些例子：切割玻璃：正宗的美國輝煌的時期切割玻璃發出黃色;復制品沒有反應或呈現藍白色。你應該預先測試，以獲得經驗，記住黑光是用于確定真實性的另一個工具。鑄鐵：大多數新鑄鐵發熒光的新涂料;舊鑄鐵上的舊油漆很少發出熒光。你也可以檢測到新的修復。

 Art inspection藝術拼檢查
In works of art, modern paint will fluoresce or glow under a black light, older paints will not. Thus, pictures that have been "touched up" with modern paint will glow.  Repairs or hairline cracks may show and become more apparent under blacklight.  Paper Products: Most paper products--like post cards, books, signs, photos papers, etc.--made before the late 1930s-WW2 era rarely fluorescent. Paper products made since 1950, however generally fluoresce brightly due to large amounts of chemical bleaches and dyes.在藝術作品中，現代涂料會在黑光下發出熒光或發光，而舊顏料則不會。 因此，用現代涂料“撫摸”的照片將會發光。 在黑光下，維修或發條裂縫可能會顯現并變得更加明顯。紙制品：二十世紀三十年代末以前制造的大多數紙制品，如明信片，書籍，標志，照片紙等 - 二戰時期很少發熒光。 由于大量化學漂白劑和染料，自1950年以來制造的紙制品通常發出明亮的熒光。