What specifications of LED are needed to use LED as projection lamp?

The production of DIY projectors is really strange. Only DIY projector enthusiasts can think of using LED light source as a projector. You can use LED light source as projector light source, and you don't need to change the projection bulb for 5 years. Think of any color temperature, like it warm, like it cold, like it pure white? No problem! There are products you want everywhere! The light source is pure cold light, excluding ultraviolet light, infrared light, low-voltage power supply, cooling fan, high-voltage circuit, temperature sensing and overload protection. Go to hell! Its only drawback is that it is not strong enough. However, its strength can be compensated by quantity. An led is not enough. 1000 is enough? ! The difference between LED light source and traditional projection lamp: working principle Traditional light source: Traditional projection lamp light source is basically a point light source of a single luminous body with high luminous intensity. After the light is emitted from the light source, it can be provided to the LCD panel through the reflection bowl, condenser and Fresnel lens.

LED light source: a surface light source composed of multiple LEDs. The luminous intensity of a single LED is relatively lower than that of a single traditional light source, but it makes up for the lack of luminous intensity with the advantages of quantity and structure. Light can be used directly or only through Fresnel lens. Traditional light source with working voltage and temperature: hundreds or even thousands of volts, and the internal temperature of the light source is several thousand degrees.

LED light source: low voltage, as low as several volts, even directly driven by dry battery, and the working temperature can be as low as room temperature. Heat dissipation and high voltage circuit traditional light source: strict heat dissipation design and high voltage circuit are needed.

LED light source: almost no heat dissipation design, or simple heat dissipation design, no high-voltage circuit. life

Traditional light source: usually hundreds to thousands of hours.

LED light source: more than 50,000 hours (if it plays continuously for 24 hours, it can still be used for five years! Traditional light source: Because the light source scatters to 360 degrees, only 10-20% of the light is effectively used.

LED light source: Light only goes forward and can be used almost completely. The energy consumption of traditional light source: 150 watts or more, and the average household projector is about 250 watts.

LED light source: 10 watt can work. I made a product of about 10 watt. The assembled projector can clearly display images in the darkroom, and it is estimated that only 20%-50% of the power of the traditional projector light source can achieve the same brightness effect. Harmful light traditional light source: contains harmful light such as infrared rays and ultraviolet rays. Infrared rays will cause the temperature of the LCD panel to rise, and the LCD panel also needs heat dissipation design. Ultraviolet rays will cause the ablation of the LCD panel, which will affect its service life.

LED light source: excluding infrared and ultraviolet rays. The LCD panel does not need heat dissipation design, and the light source has little influence on the LCD panel. Traditional light source: complex heat dissipation design, high-power fan, high-voltage design, protection circuit, induction circuit and light path design need to be considered.

LED light source: In the case of high power, the radiator can solve the heat dissipation problem only by considering simple heat dissipation design, without high voltage, protection and temperature sensing design, which greatly simplifies the light path design. The maintenance cost of traditional light source: complex heat dissipation design, high-power fan, high-voltage design, protection circuit, induction circuit and light path design all need to be considered.

LED light source: The light source can completely seal the light path without cleaning the light path. Cost of use Traditional light source: Because of its short life and high cost, its purchase price is divided by the use time and converted into about 1 yuan/hour.

LED light source: The life of light source is longer than or equal to that of projector, and the use cost is close to zero. Composition of light source: 16* 12= 192 high-brightness LEDs, each 3.3v, 20ma, with a total power of about1.03a. The power supply is supplied by computer switching power supply, and the voltage will drop under load. The measured voltage is 1 1.04V, and the current is. There are so many advantages to using LED light source as a projector, so what is the effect of a good projector? How to install the projector? The whole projector is installed in the carton of a printer, which consists of four parts: led light plate, Philippine mirror between light source and liquid crystal plate, liquid crystal plate and lens.