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UVlight

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Q. How can I determine how many lamps I need to buy?A. You can consider installing a spotlight at a distance of half a meter or one meter.

As discussed in Chapter 5, optical lithography has been practiced where there are light sources that satisfy certain key requirements, particularly narrow bandwidth and high intensity. The optics and masks of each optical lithographic technology have been engineered around this primary requirement of an intense, narrow bandwidth light source. For EUV lithography there are few options for masks and optics. EUV lithography must necessarily be practiced at wavelengths where there are multilayer reflectors with at least moderate reflectance. Unfortunately, intense sources of light may not exist at these wavelengths. Productivity due to low light intensity at the wafer is a concern with EUV lithographic technology, so considerable attention must be paid to multilayer reflectance and sources of EUV light.

Q. Are these dimmable?A. Yes, we have two models, one is monochrome with adjustable brightness; the other is dual-color with adjustable brightness and color.

Q2. What about the lead time?A: Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than 5,000.

Q. Can I control the outdoor spotlight in the house, or do I have to use the controller to aim the spotlight to control it?A. Of course. This is an RF controller, you can control it through the wall while sitting at home.

The miniature led spotlight is equipped with a power controller with a hub, and the controller is controlled by an RF remote control.

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Q1. Can I have a sample order for led light?A: Yes, we welcome sample orders to test and check quality. Mixed samples are acceptable.

Q6. Is it OK to print my logo on led light product?A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q5. How to proceed with an order for led light?A: Firstly let us know your requirements or application.Secondly, We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places a deposit for formal order.Fourthly We arrange the production.

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Q4. How do you ship the goods and how long does it take to arrive?A: We usually ship by DHL, UPS, FedEx, or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping is also optional.

If wavelengths of light in the range of 11–14 nm are used, it is possible to construct reflecting optics of moderate efficiency (> 60%) using multilayer films. This opens up the possibility of projection optics and reduction imaging. With a numerical aperture of 0.25, a wavelength of ~13.5 nm (this particular choice is explained shortly), and a k1 value of 0.6, the resolution is

Q: I want to use these as accent lights in wooden display cabinets. I am not sure if this will cause a fire or other things to be safe.A. Will not catch fire

Q: Can I drill holes in 4’x 4’contractor ceiling tiles and put a spotlight in without any enclosure? Will it cause a fire hazard? I use LED spotlights instead of halogen spotlights in the restaurant for 12 hours.A. You are welcome to do so. I don’t understand why it can cause a fire.

This mini spotlight can easily be connected to a dimmable or non-dimmable transformer. It is also possible to install several LED spots as a group and easily add a separate spotlight when needed.

This is a 2W mini led spotlight with a very small size, the shell size is 36x36mm, and the size of the opening required for installation is 27x27mm. Very small, with an embedded buckle, it is very convenient to use.

Extreme ultravioletlithography

The hub on the power controller can be connected to multiple spotlights for synchronous control at the same time, which is very convenient to use.

Reflection occurs at interfaces between materials of different indices of refraction. The larger the difference in refractive index the greater the reflectivity. At wavelengths < 50 nm, all materials have indices of refraction ≈ 1. Thus, it is difficult to create a highly reflective interface. At EUV wavelengths, it has proven possible to make mirrors with moderate reflectivity, in the range of 60–70%, by the use of multilayers. Multilayer reflectors are made by depositing alternating layers of high-Z and low-Z materials, giving a small but effective difference between refractive indices at each interface (Fig. 12.9). By making the periodicity d of the multilayer stack satisfy the Bragg condition,

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Reflectance versus wavelength is shown in Fig. 12.10. As can be seen in this figure, reflectance peaks narrowly around a given wavelength. From Eq. (12.8), it is apparent that only a very small wavelength shift causes a small change in peak wavelength (see Problem 12.3.) Even if every mirror in the EUV system has very high peak reflectances, the overall system transmission can be low if these peak reflectances do not occur at nearly the same wavelength. A similar statement is true regarding the need to match the peak reflectance of the masks to that of the projection optics mirrors.4 When specifying the wavelength at which peak reflectance occurs, it is important to pay attention to detail. As can be seen in Fig. 12.10, the curve of reflectance versus wavelength is asymmetric.

Q. I bought a set of 12 sets of lights, how can I change the wiring to light up the spotlights?Answer: Just insert the terminals of the end of the connecting wires of all the spotlights into the hub port that comes with the controller, and then power on the controller plug to light up the spotlights.

The control distance of the remote control can reach a radius of 50 meters, and it is an RF control method. Even if there are multiple obstacles from the controller, it will not affect the use of the controller.

This is a mini dimmable led spotlight. With the help of an RF remote control, the color temperature and brightness of the spotlight can be adjusted to meet the needs of various scenes and atmospheres.

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The materials chosen to comprise the multilayer stack must be weak absorbers of EUV light, since the light must be able to penetrate to the lower layers of the film stack. Several stacks have been identified as possible reflectors in the EUV, and these are listed in Table 12.1. Because of beryllium’s toxicity, there is a reluctance to use that metal for EUV lithography, and most effort in EUV lithography today is focused on Mo/Si reflectors. Because reflectance is angle dependent [Eq. (12.5)], graded depositions are needed on optics that have light incident at varying angles over the mirror surfaces.

where θ is defined in Fig. 12.9, the net effect of small reflectivity at each interface is moderately high reflectivity overall when the stack has a sufficient number of layers.

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New Super Mini LED downlight for outdoor Veranda, Terrace, Roofing, Garden and indoor Bathroom, showcase, etc. lighting.

The waterproof rating of this mini led downlight is IP65, so it is no problem to use it outdoors. Basic wind and rain can still be endured.

The very short wavelength enables a small numerical aperture to be used, avoiding the problem of self-vignetting in all-reflective optics. Wavelengths in the range 11–14 nm are in the extreme ultraviolet (EUV) or soft x-ray portion of the electromagnetic spectrum, so lithography using such wavelengths is referred to as EUV lithography. Because projection optics are possible at EUV wavelengths, particularly reduction optics, many of the mask problems encountered with 1:1 x-ray lithography are avoided. However, as will be seen, EUV lithography has its own set of challenges.

This is also a low-voltage led spotlight. The working voltage of each spotlight is DC12V. You don’t need to be aware of the risk of electric shock caused by children touching or wiring failure.

Q: Is this lamp safe to use outdoors? Will there be a risk of leakage when exposed to rain?A. Don’t worry, this can be used directly on the top of the outdoor balcony, lighting under the eaves, there is no problem.

This recessed RF dimmable spotlight is suitable for various application scenarios, such as outdoor terrace, veranda, garden house, bathroom, showcase, cabinet lighting.