Table of Contents
What is a Projector?
A projector is a digital device or an intermediate processing system used to convert image and video data from peripherals such as PCs, laptops, smartphones into a bright image on any screen that the naked eye can see.
The introduction of projectors is a strong affirmation of our human intelligence, thereby contributing an important and positive impact to all humanity’s scientific and technological development.
The use of the projector
So what is the real use of projectors in everyday life:
– Create data presentation slides for presentations in study and work.
– Easily exchange and transfer information quickly, gradually replacing boring handwritten documents.
– Become an effective support tool for study and work, bring high efficiency, and save more time.
– Can create a home cinema, serving the needs of watching movies, watching soccer to help connect people.
– In addition to education, projectors are also widely used in many other fields such as health, military.
The popular projector technology
When you want to output images from external sources, these images must undergo some optical conversion combined with the electrons that occur inside the projector, also known as manufacturing technology projectors.
Projector manufacturing technology is judged on the technical standards that affect projector quality, such as brightness, resolution, and contrast. These technical criteria will be analyzed in detail in the following section.
Specifically, the projector is divided into three basic types: DLP projector, 3LCD projector, LCOS projector.
DLP (Digital Light Processing) Technology: The mind is an optical semiconductor chip that was invented in 1987 by Dr. Larry Hornbeck. In addition to electronic components, the DLP system also contains about 2 million microscopic mirrors.
The DLP system has been developed into two types; one uses a DLP chip and uses three DLP chips. One-chip systems are cheap, so they are more commonly used in projectors, while expensive three-chip systems are used in movie theaters.
3LCD Technology (Liquid Crystal Display): Projector technology was born in 1980 by the Epson brand; then, about eight years, Epson has granted the rights to use third parties such as Panasonic, Sony, and Sharp.
Three important stages of creating an image of 3LCD technology include: creating color from white light beams (red, blue, green), creating images with LCDs, and finally, the combination of creating image and projecting to outside.
LCoS (Liquid crystal on silicon) technology is considered a hybrid image technology between DLP and 3LCD. It reflects the same light as DLP but does not use many microscopic mirrors but is a liquid crystal-like 3LCD.
LCoS can produce high-resolution images but is often larger in size, heavier in weight, and has a higher selling price than DLP or 3LCD. As a result, this technology does not usually appear on conventional projector models.
Important criteria when choosing a projector
A. Select the specifications for the projector
Do you understand and know the specifications of the projector or not? Here are some basic specifications to help you choose a suitable projector.
Resolution: Based on the needs used to select the appropriate resolution.
If you use a projector to make simple PowerPoint presentations, display charts, or graphs, just a projector with SVGA (800 × 600) or XGA (1024 × 768) resolution is enough.
On the other hand, if you use a projector to make high-tech drawings, digital photos, or Excel spreadsheets that contain heavy-duty detailed images, you need a high-resolution projector like SXGA (1400 × 1050) or UXGA (1600 × 1200).
Projector brightness: Brightness is measured in ANSI lumens. Basically, the higher the ANSI lumens, the brighter the image quality.
The projector’s brightness depends on the ambient light density, the screen quality, and the image size. Currently, there is no standard to assess the brightness of the projector accurately.
Brightness depends heavily on the environment and projection space. For example, if you use the projector to project movies in dark rooms, the brightness range of 1000-1200 lumens is reasonable.
Contrast ratio: A parameter that reflects the brightness ratio between an image’s lightest and darkest areas. The higher this ratio means the image quality will be more vivid and realistic.
The contrast will be an important factor in assessing the authenticity of an image. LCoS technology is much higher than 3LCD and DLP technology; while 3LCD projectors have significantly improved contrast, DLP has hardly changed much.
B. Calibration capability and projector lens
The magnification or reduction of the image depends heavily on the projector lens when there is no need to move the machine; there are two common lenses: manual zoom lenses and mechanical zoom lenses.
Of course, the type of mechanical zoom lens is much more modern, saves effort, and does not reduce image quality than having to zoom manually, but the price will be higher.
Most projector lenses now have a zoom ratio of 1.1: 1 to over 2.0: 1; the higher the zoom ratio, the bigger the zoom range. In addition, the ability to adjust the projector is equally important.
C. Compatibility, connection with devices
Just like electronic devices such as cameras, printers, or cash registers, when choosing a projector, you must also pay attention to the connection port and compatibility with peripheral devices such as PCs or laptops. Choose projectors with built-in ports such as HDMI, VGA, USB, AV to help you easily connect to peripherals such as smartphones, HD Player, PC, Laptops, Android tv box … or Can read files directly via USB.
D. Projection distance supported
That is also the criteria you need to keep in mind when choosing a projector; some models can project a large image on the screen despite being placed quite close. Now you need to understand the projector’s zoom ratio.
The zoom ratio is measured by the distance from the projector lens (D) to the screen divided by the width of the displayed image (W).
Zoom ratio = D / W
E. Lamp life
Lamp life and use time are not related to each other; almost all projectors currently on the market have a lamp life of not less than 6,000 hours, some LED bulbs have a life expectancy of up to 6 hours up to 50,000 or 100,000 hours is very normal.
Therefore, to ensure quality, you should choose projectors using LED bulbs with a life expectancy of about 20,000 hours or more. Avoid choosing low-quality light bulbs that will cost you a lot of money to replace bulbs.
Top 5 mini projector for laptop
1. Unic UC46 Wifi
If you are looking for a mini projector that can meet all users’ needs and has an affordable price, it certainly cannot ignore Unic UC46. One of the most popular models at the moment.
Unic UC46 has an extremely compact design; the maximum size is only 130 inches, but it still ensures a screen with sufficient space. Excellent color display thanks to integrated intelligent LED technology and high-quality optical lens.
Compatible with Android, iOS, Windows such as smartphones, laptops, or tablets via WI-FI wireless connection. Thereby helping you easily share data from the device to the projector.
DLNA and Miracast support help you enjoy image formats, videos … comfortably from a smartphone on a widescreen screen or connect to a home projector via a laptop.
where can you get a Unic UC46 Wifi online
Unic UC46 WiFi Home Theater projetor proyector led 3D Full hd Manual Correction 1080p 1200 lumens Digital LCD Projector: Buy it now
New UNIC UC46 WiFi Wireless Portable LCD LED Home Theater Projector Proyector Cinema 1200 Lumens Support Miracast DLNA Airplay: Buy it now
New UNIC UC46 WiFi Wireless Portable LCD LED Home Theater Projector Proyector Cinema 1200 Lumens Support Miracast DLNA Airplay: Buy it now
2. Tyco T1500
In the segment of mini-projector selling under $100, another product with the same quality Unic UC46 is Tyco T1500. Tyco T1500 is no different from the old Tyco T1500A but not integrated with the Android operating system in terms of design and design.
Tyco T1500 has two colors, white and black, to choose from according to your personal preference; the outer shell has a rounded design. There are air vents on the side for efficient cooling for hours on end, neatly integrated buttons on the back.
Although not equipped with an Android operating system, the Tyco T1500 has an additional Cab TV port, so you can watch TV as you like. In addition, various other ports such as HDMI / VGA / USB / AV are compatible with most smartphones, HD Player, Laptop, PC, Android TV Box, or USB devices.
Although the size is not too large, Tyco T1500 brings convenience as it can gradually replace a 32-inch television with an ultra-widescreen of up to 120 inches.
where can you get a Tyco T1500 online
3. Tyco T2500
Tyco T2500 is another Tyco-branded mini projector that you should not miss, despite its relatively high price tag. That is a high-end product line designed specifically for families, karaoke, football cafe, or group meeting.
Besides selecting the projection from a PC / Laptop or other sources via HDMI, users also have the option to project directly from the USB port. Support projection on a 120-inch screen with high contrast 2500: 1 and 16.7 million colors.
Applied LED projection technology on frames with a resolution of 800×480 (support up to Full HD 1080p). 2500 Lumen brightness, which is much higher than other LED projectors on the market.
where can you get a Tyco T2500 online
4. Android TV Smart Box Smart Cube P1
Cube P1 is a high-end mini projector from the Doogee brand, an emerging brand in recent years but strong enough to compete with big brands like Xiaomi or Huawei, especially in the office equipment segment.
Despite its relatively small size, the Cube P1 can zoom to 90 inches and a maximum of 100 inches. As a result, the product is a perfect combination of Android TV Smart Box with high-end projection to satisfy all entertainment needs.
Good compatibility with most peripherals such as Androids, iPhone, iPad, MacBook, or Windows 8.1 and above. 4800mAh battery capacity, ensure the ability to operate continuously within 3 hours.
Being a versatile device, the Cube P1 almost meets all needs from individuals, families to businesses. Such as:
– At home, you can enjoy movies right in the family living room or connect to PS4 to play games on CH Play.
– When traveling, you can immediately use your camping tent to make it a screen to make attractive videos or music.
– For efficient work, the Android TV Smart Box Cube P1 allows users to set up rooms everywhere, supporting simple projection easily.
Cube P1 mini projector with compact engine, high performance is suitable for use for training, teaching …
where can you get a Android TV Smart Box Smart Cube P1 online
5. YG-300 Full HD
YG-300 is the best $50 cheap mini projector currently on the market; although it is a low-priced product line, in general, YG-300 is also quite well equipped in terms of functionality, sharp resolution. Most especially, its lightweight design allows you to take it with you wherever you go.
Easily connect to other peripherals, diverse ports such as HDMI, USB plug, SD memory card, audio ports … thereby helping you project directly from PC comfortably, laptop, computer tablet or smartphone to widescreen.
Support almost all formats such as image, video, audio such as mp4, mp3, 3gp, jpg, or avi. The installation process and use are relatively simple, using LED technology with a lifespan of up to 30,000 hours.
where can you get a YG-300 Full HD online
Projectors YG-300 LCD Mini Support 1080P Portable LED Projector Home Cinema: Buy it now
Mini Projector, YG300 Portable Full Color LED LCD Video Projector for Children Present, Video TV Movie, Party Game, Outdoor Entertainment with HDMI USB AV Interfaces and Remote Control: Buy it now
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