With the rapid development of the projection industry, projection has gradually gained the favor of individual users and is no longer an office product. The battle of light sources has never stopped. LED's long life, small heat, high reliability; light bulb brightness, good viewing experience; laser expensive and so on. However, the recognition of users, the maturity of technology, and the reduction of costs directly affect the true direction of projection technology. Today, I was fortunate enough to talk about two of the most popular light sources in recent projections: LEDs and lasers. There are also projectors with these two types of light sources in hand to make a comparative experience.
LED light source has a long life, low heat, high reliability, environmental protection and other characteristics, so that LED has been greatly developed in projection in recent years, of course, due to some of its own limitations, such as color gamut, brightness, so that people gradually put their eyes on In a wider color gamut, higher brightness laser light source.
In terms of color gamut, the white LED is smaller than the standard color gamut, and the ** color LED is only slightly higher than the standard range. The laser light source in the color gamut, the scope is much larger than the standard color gamut.
In terms of brightness, 1000 lumens is a hurdle for LED projection. There are several LED projectors that currently reach 1,000 lumens on the market. This is a difficult gap to be overcome with traditional bulb projections. The laser light source can just make up for this, not only can solve the traditional lamp life and high power and other issues, but also in the brightness has a big increase, presumably this is why in recent years we all take the laser light source as the next projection One of the reasons for light source replacements.
Of course, the other difference between the two is that the current price of laser is a bit expensive and ridiculous. However, with the development of technology, laser light sources will surely become popular in the projection industry. It may be a projection industry or even the television industry. A revolution.
This brings a simple contrast between Cool Music as S3 and Light Peak A1. Cool Music regards the S3 as one of the more fire-fighting products released last year. It will achieve lumens in household projections and bring the price to the civilian level. The light peak A1 currently seems to be relatively moderately expensive in laser projection. The lumens of the two are 700 ANSI and 1000 ANSI (PS: Cool LeTV S3 Normal Edition is also about 700 ANSI or so), the resolution of the two is also the same, the main difference is that one uses the laser, one uses the LED lamp.
From the appearance point of view, the difference between the two is still quite large, cool music as S3 is a square, light peak A1 is a rectangle. The volume is also relatively large. In addition, as the resin material used by Cool LeTV S3, the light peak A1 uses a metal material. In terms of touch and other aspects, the light peak A1 feels significantly better than cool music as S3.
In terms of installation, Cool Music regards the S1 as having a standard threaded hole, which can easily support lifting, wall hanging, ** tripod support, etc., while the light peak cannot be used because of a standard thread opening. Smart tray support. This is a bit regrettable.
In terms of interfaces, Cool Music regards the S3's interface as more plentiful, with two USB ports, two HDMI ports, support for LAN cable ports, and support for AV and DTMB. The light peak A1 has a USB 3.0 interface. Transmission speed is faster. However, in the interface or choose their own suitable.
We take these two projections, of course, not to compare the appearance. For us, the more emphasis is on the projection effect. First, let's take a look at the projection ratio (projection distance/frame width) of the two. For home use, short-range projection is a trend, because for rooms that will not change in size, the shorter the focal length, the larger the picture you see. We place the projection in the same position and project a projection screen. As shown in the figure below, the red line frame is the screen shot by the light peak A1, and the outer layer is the screen of the cool music screen S3. In the same position, the projection screen of the Cool Music S3 is probably light. 1.6 times the peak A1.
The above picture is not intuitive, you can see the following picture comparison. The upper part is the projection screen of Cool Music as S3, and the lower part is the projection screen of Light Peak A1. At the same time, the screen projection time is 5:00 PM, and the lighting is turned on. Both are very good at projecting in the lighting environment.
Adjust the distance between the two projections to project two projection sizes to the same size. As shown in the figure below, you can see that the brightness of S3 is still higher than the brightness of A1. After all, one is 1000 ANSI and one is 700 ANSI. In addition, it is worth noting that there is an official propaganda: the brightness is 2-3 times that of non-laser projections. Do not be misled by this point. Put aside brightness, in terms of color, really experience some gaps between laser and LED. At least in the cool music as the S3 and the light peak A1 point of view, the light peak A1 color reproduction than the cool music as the S3 better.
In the aspect of text performance, Cool Music regards S3 as having a serious virtual focus phenomenon. As shown in the following figure, the image of the S3 is projected as a bit of text. In the upper left corner, the text mode can be clearly seen. The lower figure is the second peak A1. The four projections of the projection screen are all good, and there is no serious virtual focus.
After a period of use comparison, both have their own advantages, but also have their own shortcomings. Cool music as S3 is still relatively good in terms of brightness. However, the light peak A1 is better than the cool music S3 in terms of color reproduction or the virtual coke condition of the four corners. In actual use, the heat output of the two cameras is basically large, but the noise of the light peak A1 is small, and the music sound of the Cool LeTV S3 is louder. In terms of light sources, individuals think that lasers will be the trend of future projections, and the development space is also greater. Presumably, with the development of technology, the price of lasers will gradually fall back to the public's acceptance.
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