The projection of led light can actually be traced back to Casio led projection of Las Vegas show CES many years ago. Of course, the new light source did cause a strong response to the audio and video ring, and Casio was aware of the brightness problem of led light source. Short-throw projection program, said that the domestic ultra-short-focus led micro-casting is Casio n years ago to play the rest.
In addition, Casio's led projection was not popular because of the 800p resolution, cold light source, such as the obvious color cast, so it is also a short-lived. The next is LG, can be said that in the professional audio-visual field in the first LED light source projection to make consumers shake the desire to buy products, 1000ansi flow brightness can be said to have reached the ultimate led light source, using 0.65 The DMD chip with 1080p resolution is not wrong. The 0.65-inch 1080p dmd is actually a change of light source compared to the traditional light bulb machine. Although 1000ansi plus a high-gain screen can also achieve large-scale delivery, nearly ten thousand. Price, brightness is not higher, but also a niche choice, after all, with the professional home projection is still a bit of a gap, but has been infinitely pulled into the gap with the light bulb.
Then is the domestic micro-projection of micro-investment products. 16 years ago, they all used the 0.45-inch, 800-p resolution dmd chip introduced by ti, but gave full play to the small size, portable features, but most of the brightness is within 500ansi , we can collectively say that these products are the product of early adopters of digital enthusiasts, with professional audio and video is not a dime relationship, after all, 4K has been a sign of popularity, 800p has been regarded as the parameters of the prehistoric times.
In late 2015, TI introduced a tiny DMD chip with a 0.47-inch 1080p. In 2016, Gumi was the first domestic manufacturer to launch a 1080p led micro-projection. Of course, the predecessor LG has also adopted the latest DMD chip and introduced a new model. .
Of course, LED projection problems are still significant, such as the brightness of the bottle diameter, such as color cast, such as micro-dmd picture quality is not good for large-size DMD, but the advantages are undoubtedly, light, long life, will not explode, The drama is no longer distressed bulb life, then it will take a look at how the extreme meter h1 in the led micro-projection performance.
Polar meters H1 using a black matte packaging, very texture, but it is also not on the mirror, marked Harman Kardon on the packaging, vaguely remember that not the first meter built-in Harman's micro-projection unit.
Open the cover is the host of h1, accessories and the host is not a stacked structure, but the use of a pull-out accessories warehouse, all the accessories are individually carton packaging, and hot stamping accessories logo, can be described as very hard.
All accessories include: M1 HMI host, power cord, power adapter, remote control, USB charging cable, one-year mango vip card, manual, adjust the lens zoom pin.
The main body of the pole meter h1 is square, and the punching net shell wraps around the three sides. The main unit is a Harman built-in unit, and supports use as a Bluetooth stereo. Therefore, the shape of the extreme meter h1 sound is created.
Polar meter h1 uses a lens cover structure, open the lens cover that is turned on, the lens group has no displacement function, zoom range is also small, 1.35-1.5, so the placement is relatively difficult, and even some of the environment can only be compromised with trapezoidal correction, And there is no zoom ring structure, which is operated by inserting the card pin into the lens edge.
The optical group should be made of coated resin material with built-in motorized focus. The actual measurement is about 150 meters at 5 meters.
Extreme meter h1 is a matte black matte plastic with touch function to realize the experience as a living room audio. The black strip is a volume control. The collection is set below, the previous one, the next one, and the pause function. The operation is more sensitive.
The top of the back is designed with heat sink shape, and the lower end is the interface panel.
The interface section provides aux3.5mm headphone output, power interface, a usb 2.0, a usb 3.0, a fiber output, a gigabit network interface, two hdmi 1.4 interfaces, one of which supports arc audio return.
The bottom is designed with a cooling grille. There are two passive cones on the upper side. It is worth noting that the poles do not provide standard 1/4-inch screw holes. On the upper side are two passive bass cones.
However, the four-cornered floor mats are removable and support the installation of an optional adapter board with a 1/4-inch screw hole. It is not known whether the internal space can't accommodate this structure or the biochain that is supplied for accessories.
In order to facilitate the installation, a treasure purchased adapter adapter chassis, and the original structure and installation size, do not know if it is genuine, but this thing does not have technical content, so it can be used on the chassis with a dedicated The increase in mats increases air convection space.
After the adapter plate is installed, a 1/4 inch thread can be installed with a tripod or special hanger, or it can be placed directly.
Due to the use of a single-hole fixation, the body rotates when the lens cover is operated, and if the wall is insignificant, it is necessary to constantly adjust the angle when the curtain is thrown.
Because of the built-in android system, the remote control of the meter and the set-top box and the remote control of the network television are exactly the same, and the workmanship is not bad. The use of aluminum alloy profiles and the layout of the keys are also reasonable, and it is very easy to use.
The remote control adopts Bluetooth paired built-in lithium battery, with a reset button at the bottom, micro USB charging interface, fn function switching, after the switch can be fine-tuned by the volume button focal length, adjust the projection clarity.
In addition to the physical remote control, M1 supports mobile app operation. By downloading the client app “No Screen Assistantâ€, online resource on demand and remote control can be performed.
In the external interface is divided into film, music, application of three sections, can be on-demand video and music resources, especially music resources, for the sound meter m1 h1 provides a more complete experience.
In the remote control mode is divided into treasure box, direction control, touchpad, voice, treasure box covers the focus, input, screenshots, 3d settings, image mode, stepless zoom, memory cleaning, with the screen, connection management, shutdown options and other practical features Even the operation is faster than using physical remote control.
System & UI
Polar meters h1 built-in based on android 5.1 in-depth custom GMUI operating system, Mstar 6A928 CPU, Mali-T760 GPU, 3G storage, 16G storage can be said that the flagship configuration.
The UI of HMI H1 adopts horizontal distribution, the leftmost is external/internal storage, hdmi1/2 source selection, the middle is several functional categories such as film, music, games, and applications, and the right is setting, shooting, etc. And shortcuts.
Online resources, the use of mango TV, but also the most personal online resource provider, will not comment, anyway, newer movies and television dramas have, but the accumulation of resources is not profound, the most advantageous estimate is the variety real people Show it.
Baidu music is used for music resources and resources are abundant.
The amount of information on the playback interface is very rich, and its own lyrics are displayed synchronously.
Polar meters h1 built-in speech recognition, seems to use the information technology, the keyword processing and scope is almost consistent with the micro-whale TV, is also the experience of the micro-whale after the highest voice recognition, experience the best audio-visual equipment.
Android platform, rich in games and simulators are also essential, large-screen play machine Shuangkuang is unmatched by television, but through the 720p projection through the God of War and God Sea 3 generation masterpiece.
Although using the android platform, but the customization is more in-depth, can not see the android set the shadow, provides connection settings, sound settings, projection settings, generic, user, and other options.
It is worth mentioning that the polar meter h1 can take into account both the projection and the sound, so in the sound mode you can select the sound mode and the sound source priority.
Because it comes with fiber output and hdmi arc audio return, so the audio output can be switched in the sound output, but whether the hdmi arc can transmit the next generation of audio tracks needs to be known in subsequent and professional amplifier connection tests.
Projection settings, there are a variety of brightness modes, the color accuracy of the film mode is high, some models more obvious color cast, polar meter h1 also supports positive projection, suspended shooting, rear projection mode, trapezoidal correction function.
Audio test
The audio of the HMI h1 is divided into local speakers and digital output. The local loudspeaker uses two 7.5W 1.5-inch Harman Karton full-frequency units, two passive bristles, and the midrange performance is very good, so it occupies the movies and the drama 70 The above performance of dialogue is very good, but due to the limited sound pressure and the limitation of the placement, there is a very obvious sense of positioning in the movie. Therefore, it can only be used as a low-interest requirement for sound effects, and you want to experience it. The sound effects of the environment require a multi-channel theater system.
Polar meters also support hdmi arc and fiber optic digital output, in fact, the fiber can already be eliminated, for the current home panoramic sound up to 11 speakers surround, 5.1 of the next generation of audio tracks obviously can not meet the needs of audio and video enthusiasts, so fiber Can only be satisfied with low-end vocal and desktop multimedia systems.
Under the premise that the audio output adopts arc and the output format is raw, it is regrettable that the arc return after testing the meter only supports the two-channel audio signals of the pcm and the DOLBY DIGITAL and does not realize the return of the dts audio track. Other generations of audio tracks, of course, can not avoid possible setup errors.
Imaging test
First of all, I did not try the 300-inch and light-on-day test of this rogue movement during the day. Using projection for so many years, the projection is a sight to see, unless the use of high-gain metal curtains, or other The material's anti-light curtain, but the principle of reducing light reflection loss and improving the brightness of the screen, will bring about the hot spot effect and a narrow viewing angle. The existence of an independent audio room not only guarantees the acoustic reflection integrity, but also Projection provides a near-total black use environment.
What is the difference between the screen performance and the professional high-pressure light bulb machine? The following uses the 3lcos of the sony hw55es to compare the dlp of the polar meter h1. In order to compare the screens, the 4 color image is divided left and right, and the m1 h1 is projected to the left, and the hw55 is projected. On the right, in the actual test, because the black level of the meter is not outstanding, the black part still has a uniform LED light source, which affects the contrast and color performance of the right screen. In addition, because of the two screens, there is no special aim at Projection to adjust the white balance, while the Sony hw55es sale price of 18,000, is still more than 10,000 yuan, so the screen shot only as a reference.
Projecting a white screen, you can see the white, the left side is cold, the right side is warm, this is the biggest difference between the cold light source and the warm light source, the actual Asian eyes prefer warm colors, so they prefer the high-pressure light source professional projection.
(Original)
The contrast between left and right can be seen that the red color on the left side is slightly purplish, although the color reproduction is a little bit off to the right, but the performance is very good.
(Original)
The saturation of green performance, the color temperature is low.
(Original)
Yellow, but also saturation, low color temperature.
(Original)
The blue color is also purple, but within the controllable range.
In general, the pole meter is a rare led projection device in China, and the dmd chip with 1080p physical resolution is integrated at a price of nearly 5000. The brightness of the 900ansi lumen is no less than the brightness of the 1700ansi bulb. (I remember that someone in the industry once told me that the ansi brightness of the LED light source is relatively higher than that of the high pressure lamp light source, and the actual measurement is also true). The Harman Kardon's unit is a powerful android module with accurate color performance. Degrees are also in the receiving range.
For a fever user, the pole meter can solve the pain points of some professional theaters.
1) Lamp life: I think a lot of audio-visual room users in China use LED projection. The reason is very simple. It is the life of the lamp. These users like to play games, like to play the drama, according to a set of US drama 60 minutes, 600 episodes of the episode. Will make the brightness of high-pressure light source began to fade significantly, a host game takes 20-30 hours is also very common, through 3-5 games, 100 hours gone, but the drama and game on the screen color reproduction is not strict Demanding, so long lamp life led projector is definitely one of the advantages.
2) android online resources, and now sigma chips have begun to support android, android online resources demand can not be overlooked, like new songs are recorded through Dolby technology, through arc return multi-channel audio amplifiers, you can enjoy more Perfect sound quality.
3) When it is ready to use, it will not blow up. How long does it take for the high pressure light source to turn on and off? In the event of a blackout, the light source will only take a few seconds.
However, the polar meter h1 still encountered some conflict of design and experience during its use:
1) Although the meter h1 supports hanging shots in the setup, its sound function, lens cover opening function, and adapter plate design are all suitable for the bracket installation, and lifting will cause a lot of inconvenience.
2) The brightness of the pole meter h1 is very high, so it can cast 150 inches completely, but if placed behind the sofa, the large projection size will be blocked by the front user and placed on the coffee table, the projection size should be small, waste of space, Or use trapezoidal correction to compensate, but for professional users, the use of trapezoidal correction is generally rejected.
3) The bluetooth remote control has a malfunction. I don't know if it is a case. I hope to increase the stability of the Bluetooth pairing through the firmware.
However, these days I'm used to using Miji H1. You can watch these popular TV dramas by turning on the power amplifier. You can directly watch the movie by turning on the power amplifier, and you don't have to wait for the long warm-up time of the high-pressure light source projection, at least for convenience of use. Completely sexual and expansive me.
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