Introduction of high pressure mercury lamp
The high-pressure mercury lamp is a high-pressure mercury vapor discharge lamp with a phosphor coated on the inner surface of the glass bulb, soft white light and simple structure. Low cost, low maintenance cost, can directly replace ordinary incandescent lamps, with long luminous efficiency, long life, economical and economical features, suitable for industrial lighting, warehouse lighting, street lighting, flood lighting, safety lighting, etc. The light emitted by the high-pressure mercury lamp does not contain red, and the object it emits is blue, so it is only suitable for lighting in squares and streets. In addition to the high-pressure mercury lamp for general lighting, there is also a reflective lamp (HR) with a reflective film on the outer casing, a copying lamp suitable for 300-500 nm diazo photosensitive paper, a black light for advertising and display, and an erythema. The effect of the medical solar lamp is used as a photosynthetic chemistry for nylon raw materials, and a mercury lamp for ultraviolet curing of paint, ink polymerization and drying.
The high-pressure mercury lamp is composed of a quartz arc tube, an outer bulb (usually coated with a phosphor), a metal bracket, a resistor member and a lamp cap. The arc tube is the core component and is filled with mercury and an inert gas. When discharging, the internal mercury vapor pressure is 2-15 atmospheres, so it is called a high pressure mercury lamp. The high-pressure mercury lamp uses an advanced lamp making process to make the high-pressure mercury lamp have higher luminous efficiency and longer life. It emits white light, has a color temperature of about 4100K, and is economical. It is widely used in indoor and outdoor industrial lighting and road lighting.
Self-ballasted high-pressure mercury lamps, because the product does not require an external ballast, it is very convenient to use. Its luminous efficiency is twice that of incandescent lamps, its lifetime is 10 times that of incandescent lamps, and it is economical and widely used in indoor and outdoor industrial lighting, courtyard lighting, street lighting and other fields.
High-pressure mercury lamps typically use an inductive ballast with shunt compensation capacitors. Another self-ballasted high-pressure mercury lamp, because a tungsten wire is installed in the outer bulb as a ballast, it is not necessary to use an external ballast for convenient use.
The high-pressure mercury lamp is a UV-cured standard lamp. It has a large heat and needs to be cooled by air or water, but the power is high, and it is suitable for a photocurable coating and an ink coating line which require a fast curing rate. The disadvantage is that it requires a cold start, that is to say, the light is turned on immediately after the light is turned off. It cannot be turned on. It must wait for a few minutes for the lamp to cool down before it can be turned back on. This is different from incandescent lamps.
The spectrum of the lamp has an effective range of 350-450 nm, a main peak of 365 nm, more than 700 varieties, and a power of 100w-25kw. UV curing is widely used in bamboo and wood flooring, furniture, decorative materials, printing glazing, printing tin cans, plastic coating and other industries; is also a photosensitive ink curing of semiconductors, signs, circuit boards, electronic components; more ideal point light source, portable Light sources and laboratory-specific light sources are available.