Working principle
The main working principle of the projector is emitted by the light source, through a series of optical lighting systems, irradiate the light of the light source to the display chip, and the signal The color step and grayscale is realized on the display chip, and an image is displayed, and thereafter, the image of the display chip is enlarged onto the corresponding screen by the projection lens of the projection front end. Inside the projection system, optical is mainly divided into imaging optical systems and illumination optical systems, and the most critical components are displayed chips and lighting components (ie optical machines).
Technical Classification
From the angle of the light source: can be divided into LED and laser light sources.
From the display chip: can be divided into LCOS technology and DLP technology, where LCOS is divided into color sequence type and color filter type.
Classified by multimedia audio-visual decoding and memory device functioners divided into two categories:
division multimedia: multimedia Then, the unit has self-contained memory space or even extension, and can automatically decode the video file.
Non-multimedia: Non-multimedia style is similar to traditional machines, you must be available to your computer link.
1. Open the mirror cover to lightly open to the maximum angle. Too much action will damage the projection cover, causing the miniature projector to be used.
2. Turn on the power switch, at which time the lamp should be lit, the fan should be rotated (it will be judged by the hand in the microphone, the sound of the sound), if the fan is not turned, it should be immediately Turn off the power stop.
3. Open the micro-projection cabinet, light the cabinet cover. Keep the microstructure and the distance from 1.5-2 meters. After determining that all operation switches are turned off, the power is turned on.
4. Hold the support rod bracket (kick), support the support rod to the projection surface vertical, there will be "card it", indicating that the support rod is in place. Pay attention to the action.
5. Adjust the mirror, the focus knob, the color edge adjustment knob, eventually get a clear white bright surface on the screen.
6. Place the vide on the projection, adjust the focus knob, make the screen image clear. (When using a projection piece with a surface, the pharmaceutical membrane should be facing it)
7. After the use is complete, turn off the power switch. Hold the support rod in one hand, one hand, support the support rod, and then slowly put down the support rod to the support rod bracket (卡).
8. Cover the dust cover, collect the power cord to the cabinet, close the door.
Product function
1. completely replace MP5 player, video, read office software (PPT, Word, Excel), listen to songs, play games, e-books, pictures, etc., MP5 video is affected by physical properties,
screen can't be big, and this thing is 30 inches at least 30 inches.
2. Business Office: Instead of large projectors, the company meets the use function; the price of large projector is 4000 to 14000, the light bulb life is more than 1,000 hours, it is inconvenient to carry, mini projector, price Around 3000 yuan, the lamp life is 30000 hours, 3 years does not need to change the lamp, which is convenient to carry, the salesman wants to give a new product only need to bring a microphone, which can achieve the demo effect.
3. It is used, due to the powerful decoding ability of the microphos, self-contained memory and battery, can read office software and pictures, PPT and other functions, the boss is directly copied inside, demonstrate Customers explain the company's products.
4. Instead of TV function, directly connect the top box to set TV, as a 30-inch TV during the day, 80-100 inch TV, reach the home theater effect; convenient move, break through the traditional film and television space, Even if you are on the mountain, you can also share today's TV series, movies, MTV with your lovers.
5. Teaching: Training Conference, Classroom Teaching; Traditional Projectors are not easy to carry, due to students' naughty, projectors in the classroom are not safe, and it is easy to be broken by students, micro projectors The portability makes up for teaching vacancies. In the future, the teacher will only need to store the information in the projector to showcase students, save the textbook and use the pen, chalk handwritten.
Mini projector home theater effect, has occupied 50% of home theater market share, from 2009 to 2010 In just a year in just a year, the forces projected to the home theater have been defeated. Take a market peak, especially the CMMB function and pick-up top box directly watch TV function, processing built-in storage, you can download the network's latest movie and listening to songs, which is already the unable to replace color TV, the microphone must Occupy the future home theater market.