Ball Lenses are commonly used to improve signal quality in fiber coupling applications, or for use in endoscopy or bar code scanning applications. Ball Lenses feature short back focal lengths to minimize the distance needed from the Ball Lens to the optical fiber. Zoolied offers a variety of Ball Lenses in a range of substrates for performance in the ultraviolet to the NIR. Half-Ball Lenses are also available to ease mounting or system integration.
Zoolied N-BK7 Ball Lenses are glass spheres commonly used in fiber optic applications. Ball lenses are ideal for focusing light into optical fibers, or for fiber coupling. Bk7 Ball Lens,K9 Ball Lens,K9 Optical Ball,5Mm Bk7 Ball Zoolied Inc. , https://www.zoolied.com
In the past two years, people's living standards have increased dramatically. The shabby little television set in the living room can no longer satisfy the family's strong demand for viewing large screens and high-quality images. Replacing a larger, clearer TV is absolutely imperative. The current rapid development of the television industry, production costs are getting lower and lower, while a large number of emerging TV brands on the market, constantly hitting the TV prices, so that the current purchase of a TV is definitely a very good time. 
Seven high-quality large-screen TV recommended size + ultra-high definition has now become the standard for many home-purchased TVs. We know that larger screens allow users to have a better telepresence when watching TV, and large-size TVs are basically equipped with 4K ultra-high-definition panels. In the future, the TV screen will definitely go to a big screen. The greater the popularity of large-screen TVs, it also boosted the development of 4K technology to offset the shortcomings of large-screen TVs. 
Judging from the TV size, the 55-65-inch TV has a large enough size, and resolution has generally reached 4K ultra-high definition, and many of them have adopted a curved screen design, giving the user a more immersive experience in visual perception. People feel like being in the picture. The ever-increasing size of television has become a major trend in the current market. Large-size TVs can bring a stronger sense of presence and the picture is clearer. Today, I will bring you several high-quality large-screen TV products for you to take a look at.
Light quality sub TV Samsung QA55Q7CAM
Since 2015, Samsung has begun to introduce quantum dot TV products. Whether it is the black technology exposed by domineering or the design of value-for-money, Samsung TV has always been a target for many manufacturers to follow. In 2017, Samsung’s new generation of QLEDs will be launched soon. The QA55Q7CAM TV will be officially launched on April 1st, priced at RMB 20,999. 
Samsung's QLED TV series has improved its color performance, not only accurately displaying the color space of the DCI-P3, but also the world’s first television to restore 100% of the color, which means that it can Restoring all colors at any brightness level, even at the peak brightness of 1500-2000nits that QLEDs present, allows the slightest difference to be made. 
Samsung QA55Q7CAM TV A new generation of Samsung QLED light quality sub-television TVs, the back wiring is almost "invisible", previously unsightly wires and sundries are hidden, and ultimately present only a TV. This hidden form design avoids a mess of cables and the minimalist style is further strengthened. 
Integrating with the living room environment Samsung's new generation QLED light quality sub-point TV, the system continues with the previous generation of Tizen operating system, the absolute degree of experience in the joint venture brand can be called a clear flow. The entire system is very clean and tidy, interactive operation is easy to understand, you can find all the features of this TV in this simple menu interface. At the same time, the Samsung Tizen smart TV system will also provide users with high-quality video or APPs applications.
Samsung QA55Q7CAM [Reference price] 20999 yuan
Big screen slim game TV cool open 60N2 
Cool open 60N2 TV adopts forward soundbar SoundBar, one-touch Bluetooth function, ultra-narrow full metal frame, CNC precision polishing, etc., while Eiffel's high-end base design is more fashionable. 
Cool open 60N2 TV uses a new upgraded Cool Open System 5.5, flat interface style operation is more simple and convenient, color is very young, the overall visual effects make people relaxed and happy. Integrate high-quality resources such as film and television, games, shopping, travel, sports, and health, especially in the game.
Cool open 60N2 [Reference price] 4799 yuan simple design bright 4K Hisense LED60EC660US
Hisense LED60EC660US is a 60-inch 4K ultra high-definition TV. The design and technology of this TV line were re-imagined. In order to create a light and simple design, Hisense adopted ELED backlight design and redesigned each interface and its infrastructure. Not only does the entire TV become more pleasing, it also brings a more comfortable operating experience. At present, this TV is priced at 5,499 yuan in Jingdong Mall. 
This Hisense L**EC660US TV uses 4K ultra-high-definition display panel, combined with a silver narrow frame design, can display the content into the user's visual focus, so as to achieve detailed and vivid picture details, the quality of the effect of fidelity. More than 8.29 million pixels, the details of the collar appear clear and sharp. 
Using 4K color enhancement technology 0D dimming control, the backlight LED can optimize and improve the dynamic contrast of the image according to the sensitive changes of the image. The 4K display screen directly driven by the 4K signal output from the chip can be displayed with every frame. 
This TV is also very good in terms of hardware configuration. The quad-core A53 64-bit CPU is richer and more powerful. To make it capable of large-scale online games, the six-core Mali450's image processor is equipped with a quad-core NEON co-processor. The strong core runs with clear image processing, and the movies and games you like are more exciting.
Hisense LED60EC660US [Reference price] 5499 yuan 65 inches 4K Ultra HD Micro Whale W65L
The Micro Whale W65L TV uses an ultra-high-definition image quality engine. Through 24 quality and color enhancement technologies, the details are sharper and sharper, the edges are smoother and smoother, and the colors are more realistic and natural. It greatly enhances the sense of depth and three-dimensionality of the picture, making the entire picture more realistic and vivid. At present, this TV is priced at 6,998 yuan in Jingdong Mall. 
The whale W65L TV body uses space gray color as a whole, which can better integrate different home styles. The thinnest part of the frame is only 9.9mm. It matches the space-grade high-strength aluminum alloy frame, making the slim and lightweight body solid and flat. Straight, to ensure the stability of the machine. 
Micro Whale W65L TV is equipped with a 65-inch Samsung original imported RGB true 4K LCD screen, resolution up to 3840*2160, resolution is 4 times full HD 1080P. With a 178-degree wide viewing angle, the picture can be clearly displayed at any angle. And with a high-quality backlight module and carefully tuned Ultra HD quality engine, each color is naturally pure. 
Massive Blu-ray large-scale resource content resources, micro-whale TV relying on strong production of Chinese culture examples, integrating domestic and international quality content resources, including Tencent video theater large, Hunan TV and Mango TV's strong variety, and buy TV for a year Members, very good value.
Micro Whale W65L [Reference price] 6998 yuan Ultra-thin surface HDR TCL L55C1-CUD
TCL9.9mm ultra-thin surface TV C1-CUD integrates ecological HDR technology to realize HDR in all aspects of hardware, software and content, and truly presents high dynamic content. The creative application of the 4000R golden curvature screen not only enhances the field of view of the screen. Create an immersive audiovisual experience. One 55-inch TV product TCL L55C1-CUD quoted at 8599 yuan. 
TCL C1-CUD
In the scenes of high-speed sports such as ball games and racing cars, the phenomenon of smearing and ghosting can be reduced to a level that is hardly noticeable to the human eye. When watching sports TV subtitles, there will be no jitter. At the same time, it can effectively eliminate the interference caused by signal interference in the process of signal decoding and transmission, and avoid flickering or pixel blanking on the screen. 
The motion picture is even better. As a new-generation TV+ product of TCL, TCL C1-CUD not only carries the massive resources of the Internet video industry giant Tencent Video, but also has an exclusive synchronous cinema module, allowing users to see the cinema's hit films in the same period. More C Games, Friends of the Friends, WeChat and other applications, allowing users to enjoy a new home entertainment experience. 
TV+OS 3.0
At the same time, it can effectively eliminate the interference caused by signal interference in the process of signal decoding and transmission, and avoid flickering or pixel blanking on the screen. Noise reduction also makes the picture outline more clear.
TCL L55C1-CUD [Reference price] 8599 yuan ultra-thin OLED self-luminous Skyworth 55S9D
At present, OLED technology continues to mature, the product has a unique advantage, has become the darling of the high-end TV market, today we will bring everyone a Skyworth high-end 55-inch OLED TV product "S9D", this TV is also the world's first AR TV (Augmented Reality Technology), a TV product with HDR, OLED, AR, and many popular technologies, is currently selling at 16016 yuan in Suning. 
Click to enter the e-commerce page for product details 4-color HDR LCD panel in addition to a more perfect analysis of HDR film source, but also has ultra-wide viewing angle, high brightness, low power consumption and other characteristics of the upgrade, more importantly, 4-color HDR display panel Continuation of OLED ultra-wide viewing angle, color reproduction and other advantages. 
Skyworth S9D TV Advantages Skyworth S9D TV achieves intelligent brightening screen effects with its unique 4-color screen control chip and 4-color display, which greatly enhances the dynamic range of the picture and ultimately displays the HDR content without loss. Even when the non-HDR signal is input, the 4-color HDR algorithm of the 4-color screen control chip can be used to intelligently convert ordinary SDR signals into HDR effects.
Skyworth S9D JBL tailored audio In general, Skyworth S9D is a very worthwhile to buy OLED, HDR, 4K models, 55-inch large screen is enough to create home IMAX-style viewing, good sound quality presents further to the family With audio and visual enhancement, there is sufficient operational capacity to ensure full power.
Skyworth 55S9D [Reference price] 16016 yuan large screen family popular storm PPTV 65C2
The PPTV 65C2 Ares TV uses the classic night sky black for overall color matching. There are no extra accessories and any jump colors, retaining the beauty of the TV product itself. This design is very suitable for any home environment while maintaining a low-key classic. At present, this TV in Suning easy price 6299 yuan. 
Click to enter the e-commerce interface PPTV 65C2 TV uses the Innolux 4K ultra-high-definition panel, applied direct-lit backlight, the screen resolution reached 3840*2160, allowing users to see every detail in the picture, and the traditional high-definition resolution Than the picture is more delicate and texture. 
4K ultra high-definition large screen configuration, PPTV 65C2 TV has MIMO dual-receiving technology, 1G memory +8G large storage space, professional-grade Mstar 6A938 chip with Mali-T720 graphics processor, the release of a powerful processing power to protect the smooth Play experience. 
Massive Sports Events As an Internet video content service brand with eleven years of experience, PPTV Juli has spared no effort in its strategic content layout at the big screen end. The exclusive La Liga Premier League with five years of league titles and the purchase of PPTV 65C2 TV will also be presented with 3 months of SVIP membership, in addition to removing advertisements.
PPTV 65C2 [Reference price] 6299 yuan smart TV / box information can focus on smart TV information network sofa butler (http://), the country's influential TV box and smart TV site, providing TV boxes, smart TVs, smart TVs Software, information, communication, Q & A.
Seven high-quality large-screen TV recommended --- 55-inch living room large-screen TV!
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Cool open 60N2 uses online transmission technology, including over 2000 size games, more than 200 mainframe games, Super Street Fighter 4, Lehman, Far Cry 2, Batman and other major console games can be played, you need a separate 10M + light The network, the game is loaded through the cloud, you do not need to burn TV configuration to run, the network is better and smoother, the gamepad adapts to the universal version. The 60N2 price is 4799 yuan.
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Appearance adhering to the cool design of the previous generation of cool TV, the all-metal alloy technology also doubled the fashion sense of this TV. This design concept is also an important direction for the future development of television.
Cool open 60N2 TV
24 core processor
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Micro Whale W65L TV