Installation Notes of LED ceiling light

The Ceiling Light of LED structure simple and elegant designed, which used aluminum profiles made of one-piece greatly reduce the weight.Microwave sensor with contingency plans as a whole and integral two functions, emergency time for up to three hours, two functions can provide customer choice, at the same time. improve light utilization, very practical,truly Tri-Proof. There are waterproof and dustproof drop resistance against pressure and even moisture corrosion, using a very wide range. Get all customers' recognition and acceptance.

Product Features
• No glass.
• High light efficiency.
• Integral emergency options.
• Integral Microwave sensor.
• IP65 protection class,waterproof,dustproof,moistureproof.
• Overall profile radiator professional thermal management.
• Long lifespan (over 50000 hrs), 5 years warranty.
• Comply with latest safety and EMC standard.
• Better lighting uniformity by adopting high - performance.
• No harmful ultraviolet (UV) rays.
• Conform to ROHS,no any harmful substance.
• Available in cool white, neutral white, and warm white color.
• With built-in power supply,security,beautiful and easy installation.

 

LED ceiling light is a light embedded in the ceiling beam lighting. It will not damage the lamp setting perfect unity ceiling art. Its most prominent feature is the ability to maintain the overall architectural unity and perfect, with the advantage that the structure of the light source hidden inside the building decoration, LED light is not exposed, does not irritate the eye skin! Installation note:

1. Due to the different ceilings days Shed (such as ordinary wood, solid wood, lime plaster board, lime cement coating, synthetic ceiling papaya, etc.) by the force of circumstances, some cases require the use of screws lamps.

2. Due to lighting heavier than the time of installation, please notify the relevant engineering personnel (eg electrician) in accordance with the hardness of the forces and ceiling expansion screws bolt purchase or lengthened reinforcement screws, install the corresponding force screws.

3.LED Ceiling belong to electronic products, the installation must have experience and related documents please professional electrician to help assist in the installation, in order to avoid unnecessary accidents. LED ceiling light in the fixed installation again before electric lights again.

Certainly before the entire circuit

4. Install LED Ceiling examination in order to avoid leakage, resulting in personal safety, before installation to find a professional electrician to install, do not secretly installed.

5. Ensure that the lamp operating voltage before to make sure the lamp is powered lamp operating voltage is correct, misconnection voltage can cause permanent damage to the lamp.

6. Install LED ceiling light should be avoided in the heat and hot steam, corrosive gases, so as not to affect life expectancy.

Standards of medical lamp

Medical lamp is an important tool for surgery, qualified for operation shadowless lamp, some key performance indicators to meet the standards before they can, are listed below on several important performance parameters, we buy can refer to the following standards.

  First, the most important thing is to have sufficient illumination, medical lamp is up 150000LUX above, the illuminance luminance close to the sunny summer, the sun, and the actual use of the illumination generally 40000 ~ 100000LUX most appropriate too bright, then it will affect vision. Medical lamp providing adequate illumination also should avoid glare beam on surgical instruments. Glare also affect vision and visual, easy to make eye fatigue doctors, surgeons unfavorable surgery, normal medical lamp of the operating room and should not be much difference, some of the standard illumination provides overall illumination lighting should be local one-tenth of the lighting illuminance is most appropriate. Overall illumination of the operating room should be 1000LUX above.

  Secondly, shadowless operation shadowless degree is higher, shadowless degree is an important feature and performance indicators surgery shadowless. Any shadows in the surgical field of view will be formed for the doctor observation,medical pendant, identification and surgery, in addition to good surgical shadowless lamp can provide sufficient illumination, we must also have a high shadowless degree, ensure the surgical field surface and deep tissue have a certain luminosity.
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Working principle of condenser

Condenser, a mechanical refrigeration system, is a heat exchanger, can gas or vapor into a liquid, the tubes of the heat, a rapid manner, reached the air in the vicinity of the tube. Condenser process is exothermic process, the condenser temperature is higher.

Many power plants use the turbine condenser exhaust steam is condensed. Refrigeration plant with a condenser to condense the vapor of ammonia and freon refrigeration like. Petrochemical industry with the condenser of hydrocarbons and other chemical vapor condensation. During the distillation, the vapor to a liquid state device is also called a condenser. All condensers heat from the gas or vapor while running away with air cooled condenser.

For some applications, the gas must pass through a long tube (usually coiled into a solenoid), so that the heat loss to the surrounding air, the thermally conductive metal such as copper is commonly used to transport vapor. To improve the efficiency of the condenser fins are often attached to the pipe in order to accelerate heat dissipation. Flat heatsink is made of metal with good thermal conductivity. Usually this type of condenser fan is also used to force air through the fins and go to the tropics. The role of the general principles of refrigeration compressor refrigerator is to compress low pressure steam into high pressure steam, the steam so that the volume decreases, the pressure increases.

The compressor suction pressure from the evaporator to a lower working fluid out of the steam, so that the pressure rise into the condenser, condensed in the condenser to a higher pressure fluid, after throttling the throttle valve, the pressure becomes relatively low liquid into the evaporator, absorbing heat in the evaporator is evaporated into low pressure steam, thereby completing the refrigeration cycle.

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From stone to paper

People have been making paper in one form or another for at least 2000 years, and the art of paper-making has been through several technological shifts, most notably the switch from cotton and linen fibres as a raw material to wood pulp, a development that took place in the mid-nineteenth century. Recently, another approach has emerged - paper made from stone.

Companies involved in the production of paper from stone claim that it offers significant environmental benefits. Shenzhen Stone Pape Enterprise Ltd, a Chinese manufacturer of the Stone paper, says that, in addition to no trees being chopped down, no water, bleach or acid is used in the production of stone paper, and that the manufacturing process is half as energy- and emissions-intensive as traditional paper-making. Compared to making paper from wood pulp, the stone paper process also consumes less water, and produces less effluent.

The raw material for the paper - calcium carbonate (chalk) - is recycled mining waste, which in principle can be recycled into more stone paper at the end of the product's life. For its stone paper product, Shenzhen Stone Paper Enterprise Ltd has been entiled as high-tech enterprise which is a rare opportunity in the Paper and Packaging category.

Other companies offering stone paper products include Italian brand Ogami, which produces stone notebooks, and a number of US and Asia-Pacific companies - the stone paper technology was developed in Taiwan. Proponents of the paper also note that it is smoother, whiter and more durable that paper from wood pulp. Stone paper is also waterproof paper.

Some questions have been raised about the environmental credentials of stone paper, however. The product is made from 80% calcium carbonate, but this is bound together by plastic - high-density polyethylene (HDPE), which is produced from hydrocarbons. HDPE is recyclable, but it must be recycled with plastics, not with traditional paper, something that consumers will need to be aware of if the stone paper is to be correctly managed when it becomes waste. Stone paper could be a notable eco-innovation - but more analysis is likely to be needed to understand its overall environmental impact.

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CO₂ laser excitation process

CO₂ laser, the main substance of the work by the CO₂, nitrogen, helium three gases composition. Wherein CO₂ laser radiation is generated gas, nitrogen gas and helium as the secondary gas. Added helium, can accelerate the pre-010 level thermal relaxation process, thus facilitating laser level 100 and 020 evacuated. Mainly from the nitrogen added in CO₂ laser energy transfer role for CO₂ laser tube output level and the number of particles accumulate high-power high efficiency play a strong role on the laser. CO₂ laser transition of molecular energy level diagram of CO₂ laser excitation conditions: discharge usually enter tens or hundreds mA mA DC current. Discharge nitrogen molecules in the discharge vessel within the gas mixture due to the collision of electrons which are aroused. Then they are excited nitrogen molecules and CO₂ molecules collide, N2 molecules transfer their energy to the CO₂molecule, CO₂ molecules from the low energy level transition to the formation of the number of particles emitted laser energy level inversion.

CO₂ laser resonator cavity common concave mirror with K8 optical glass or optical quartz, processed by the National Cheng Kung University radius of curvature of the concave mirror coated with a metal film with a high reflectance - gold-plated film at a wavelength 10.6μm the reflection rate of 98.8%, and chemically stable. Light infrared light emitted carbon dioxide. Therefore, the mirror needs to be applied infrared light through the material, because ordinary optical glass impervious to infrared light. It requires the total reflection mirror in the center of a small hole open. Resealing on a permeable material 10.6μm infrared laser, to seal gas. This makes the laser resonator from the outer part of the cavity output orifice to form a laser beam.
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