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An  optical dome  is a window with two spherical surfaces and concentric, which can be understood as a bent-moon   optical window   piece. The ideal optical dome, the convex radius is equal to the sum of thickness and concave radius, the amount of thickness change at different points of the two surfaces is the main indicator of the accuracy of the dome, sometimes we call it the full thickness of the optical dome, concentricity. The optical dome is an equal-thickness sphere with the inner and outer spherical centers coinciding, installed in the front end of a flying body moving at high speed, and the external shape can meet the requirements of hydrodynamics. The optical axis of the optical dome and the outer circle (mechanical axis) should be strictly concentric, and the system installed with the optical dome does not affect the Gaussian index and optical resolution of the rear optical objective Application Range Optical dome is used for deep sea submersible, deep sea equipment monitori

Conduit is the pipe used to enclose and protect the electrical wires that supply power to a home or building. So do you know what types of conduit are available? Types of conduit Flexible metal conduit  can be easily bent and can pass through walls effortlessly. However, they are not suitable for areas susceptible to moisture due to the lack of a waterproof protective jacket. It is recommended for use indoors in dry areas because it is not liquid-tight. Its flexibility and lighter weight make it easier to install than rigid conduit. It is often used in interior walls, cubicles and office ceilings in houses and office buildings (for connecting power to light fixtures).  Liquid-tight, flexible,  metallic conduit  (LFMC) is often covered with a waterproof plastic coating to protect against moisture. Its flexibility allows it to be used in tightly curved areas where it is difficult to install rigid conduit. Typical uses include bridges, underground, paper mills, petrochemical facilities, a

Electricity is the lifeblood of every system, and without batteries businesses, cities and homes would not be able to operate in an efficient and durable manner, causing us to waste energy and cost more while damaging the environment. Using batteries as power and storage components means that technology devices can function on the move. Now, new  portable energy storage  systems will offset climate change, promote renewable energy, work to decarbonize the economy, and even provide lower costs for businesses and homes, changing lives and technology forever. The biggest feature of portable energy storage is that it is very easy to carry, so it is very popular among customers in outdoor emergency power. Energy storage power supply is mainly used for emergency treatment and to meet the demand of outdoor electricity, which can meet the use of large and small power appliances and solve the problem of outdoor need for electricity. Portable Energy is Growing in Popularity To provide on-demand

  A Shared Power Bank can be used to some extent as an emergency measure when your phone runs out of power. However, there is still some room for discussion as to whether it is really practical. First of all, we know nothing about the internal battery and other configuration parameters of these shared mobile power banks. And there is no guarantee whether it will cause damage to the phone's battery or even lead to a safety incident. Shared Power Bank Second, paying a deposit, even if it can be returned and refunded at any time, is relatively expensive. This is not conducive to the popularity of shared services. Some people with stronger wariness may give up using  shared power ​. Third, similar to public charging stations, cell phone power sharing can be modified by poorly regulated criminals to steal consumers' background information, such as transaction history, passwords and other privacy. Therefore, when choosing a Power Bank Sharing Provider, it is best to work with a compa

  Hongzhun  Split solar LED street light s  are a great way to provide lighting to a street, roadway or highway without trenching in traditional grid power. As a result, solar LED street lights can lower installation costs, reduce the need for tons of wiring, and reduce the maintenance and project costs over the system's life. And since they are independent of the grid, you don't have to worry about problems down the line affecting every light, such as blackouts or breaks in the underground lines. A  reputable solar lighting manufacturer  completes many steps to ensure proper illumination is provided while providing the correct solar power assembly for the operation of the fixtures. Solar lighting manufacturers work with lighting engineers and designers to ensure light levels are met for specific applications. They also look at other sets of information, such as solar insolation, to make sure the lights are appropriately sized for the project. Let's look at these steps and

An  e-bike display   serves an important purpose. Even if the motor is the element that defines an electric bike the most, the E-bike display is an extra feature that underlines the benefits of the integrated technology that distinguishes the machine. The E-bike display monitors the values of all essential parameters that you must be aware of when riding. Most people have only seen an e-bike speedometer. The electricity meter, which shows the instantaneous power output, the pedal assist, the battery capacity, USB charging, and so on, is one example. This article will go over the features and functionalities of E-bike displays.   Capacity of the battery The battery life is displayed at the very top of the screen. Because it is critical in calculating the amount of charge remaining after riding. Riders of electric bikes can use their remaining battery power to assess how far they have cycled. The fading line from left to right indicates battery drain. While cycling, the battery power may

Light is an amazing source of energy. It can give life to plants as well as power our bodies. But did you know that air purifiers equipped with UV filter use light to purify the air we breathe? Let us tell you how does an air purifier with UV filter work. ​ Photocatalytic filter – The Principle and its working In a  photocatalytic filter , ultraviolet light acts as the prime ingredient to clean the air of impurities with the help of a catalyst, in this case titanium dioxide. Photocatalytic filter does not trap the pollutants in their original form. They convert the harmful organic contaminants into carbon dioxide and water thereby completely transforming the toxic chemicals. In fact, they eradicate the pollutants. The ultraviolet radiation has more energy than the standard light, and it is not visible to the human eye. It can produce the right amount of energy required to excite the titanium dioxide molecules to enable the release of electrons to start the oxidation process. Photocatal

    Most of the time people don ’ t know the difference between a touchscreen and a LCD screen. When there are dark black blobs on your screen, it ’ s not because the display screen is damaged, it is the caused due to the damage in the LCD of your mobile phone whereas when there are cracks on your screen its mainly due to the damaged caused to your touchscreen and as compared to an  LCD screen   it is easier to fix as you only need to replace the display screen of you mobile phone.    An LCD is the part of a phone that displays the image we see on screen. It is the layer which produces and displays the image, therefore if the  LCD   panel   is damaged you can still use the touchscreen although the panel would have either the aforementioned dark black blobs or the spider web type dark cracks on the display or both it would still function normally. To repair the LCD, a technician would have to pull apart the phone part by part to reach the LCD and assess the damage done which is not requ

Silicone-coated fiberglass fabrics   are manufactured for use in a range of applications where high heat or flame resistance is required, as well as high levels of resistance against abrasion, chemicals, UV rays and weather conditions that could cause damage.  Throughout this blog post, we will look at the properties of silicone-coated fiberglass and what applications it is used in. The Properties of Silicone-Coated Fiberglass Silicone-coated fiberglass can be beneficial for several reasons. ● Abrasion and Corrosion Resistant ● Chemical Resistant ● Durable (working temperatures of -70oC to 550oC) ● Flexible ● Flame Resistant ● Heat Resistant ● Oil and Water Resistant ● Weather Resistant ● Weight Range (7 oz/sy to 90 oz/sy)   In addition to the above properties, we are able to produce silicone-coated fabrics in a range of colors, and they can be customized to suit your specific needs.   The Applications of Silicone-Coated Fiberglass Silicone-coated fiberglass is made of  glass fiber clo

4 Signs It Is Almost Time For a New Battery Have you ever been in a hurry to get to work or school on time only to find that car won’t start? While jump-starting your car may get you to work, it is best to get your battery replaced before any issues can arise. This is why it is helpful to know when your battery is on its way out. Here are four signs that you are almost due for a new  Car Stop-Start Battery , brought to you by the mechanics at  Houny Battery . 1) Your Car Has Been Sitting For Too Long If you leave your vehicle for an extended trip out of town, it could have a dead battery when you return. Your  car battery  is heavily impacted by your driving patterns. While you might think that driving frequently negatively impacts the health of your battery, the opposite is often true. Your battery recharges while you drive, which means leaving your vehicle sitting for an extended period of time could deplete its charge. If you have chosen to quarantine out of town and left your vehic

What is Emergency Lighting? Emergency lighting  provides a back-up light source in the event of a power cut, turning itself on automatically or allowing light fittings to remain on. The purpose of emergency lighting is to allow occupants to easily locate the exits to evacuate the building safely. Emergency lighting is designed to illuminate escape routes such as corridors and stairways whilst providing a clear escape route signalled using lights therefore, preventing panic and danger for the occupants.   Benefits of Emergency Lighting ● Emergency lighting provides the property with constant lighting, making it safe for people within the premises to evacuate calmly in the case of a fire, even if mains power is affected. ● Businesses can reduce working time or money lost in trying to sort out situations if the mains power does fail. ● If a fire occurs and there is a blackout, emergency lighting will make it easier to leave the building safely and calmly for everyone in the premises. ● Em

The  optical window  is a double-sided parallel plane plate, which does not change the magnification of the system. Optical windows are usually used as a external protective barrier to protect optical detectors, sensors,  optical lenses  from the light transmission. Ultraviolet (UV) Windows When it comes to the use of laser instruments in diverse medical, defense or industrial applications, UV windows are often the weapon of choice. The standard material is high-purity fused silica, which transmits high percentages of light deep into the UV range below 200nm. UV Fused Silica has high transmission from 180-2,500nm. In addition, you can expect high levels of parallelism, low scattering, low distortion and laser-grade surface quality. Additional UV coatings or Anti-Reflective (AR) coatings can be used to maximize the transmission properties in this range and can be applied to one or both surfaces. Visible Windows (VIS) VIS are a more cost-effective, specific option for use in the small ra

Lithium Batteries  are quickly becoming the norm in batteries. Lithium batteries are so named due to the lithium anode used in the construction of these cells. Lithium batteries stand apart from other cells in a couple of different ways. First, Lithium cells have a high discharge density and have the ability to charge and discharge very efficiently. Lithium Cells are commonly used in Portable Electronics, Radio Controlled hobbies, and Electric Vehicles.  There are several main types of Lithium Battery Cells. Prismatic, Pouch, Cylindrical, and Button Cells. Each of these cells are compatible with welding. Below we will discuss each of them and welding applications of each of these cells.   Prismatic Lithium Cells Prismatic Lithium Cells are one of the more common types of Lithium Battery cells. They are commonly used in cell phones, tablets, cameras, and in electric vehicles. A prismatic cell consists of the anode, cathode, separator, and electrolyte wrapped in a metal container. Each p

  Because water source  heat pumps   use newer technology, they are not as popular as other types of heating systems. So, in order to solve this problem and help others, we decided to discuss water source heat pumps in this article. A water source pool heat pump, also known as a water source, transfers heat from the water source to your pool water. Source water enters the unit and passes through the evaporator coil, which contains a cold liquid refrigerant, commonly referred to as "Freon." As the source water passes through the coils, the refrigerant heats up into warm freon gas. The source water is cooled, leaves the evaporator, and returns to the water source. The warm freon gas is passed through a compressor, which compresses it into high temperature freon gas. This hot freon gas then passes through the condenser, which is where the pool water enters and exits the unit. The pool water flushes the coils, heats up, and keeps the unit warm. As heat is transferred from the coi

Ni-Cd Batteries  vs. LiFePO4 Batteries for Emergency Lighting and Life Safety Products Advantages (+) & disadvantages (-) & neutral (0) of LiFePO4 and Ni-Cd batteries   Specific Energy is a measure of the Energy per unit mass.   LiFePO4 batteries  have a greater energy capacity for a given mass than Ni-Cd batteries, which means LiFePO4 batteries weigh less than Ni-Cd batteries. Energy volume Density is a measure of the Energy per unit volume.  LiFePO4 batteries have a greater energy capacity for a given volume than Ni-Cd batteries, which means LiFePO4 batteries are smaller than Ni-Cd batteries. Currently, LiFePO4 batteries have almost twice the energy density than Ni-Cd batteries. This is one of the largest most favorable characteristics of LiFePO4 batteries as compared to Ni-Cd batteries. Specific Power is a measure of the Power per unit mass.  It is Power output divided by its mass, typically in units of W/kg. LiFePO4 batteries have a greater Specific Power capacity for a giv