How to identify whether the lumens of the projector are recognized? Is there an easy way to do it?

Now the lumens of the projector are not as strong as the false standard of the previous two years, and the dare to mark 3000 in 2000 (most of them are Toshiba's false standards).The current projector lumen mark is still more realistic.

It is indeed very difficult for people who have not been exposed to projectors for a long time to distinguish lumens, and professional instruments are required.

If you want to buy a projector, you must first consider your own use environment, the size of the house, the location of the placement, and the time period of use, to choose the projector. Not too dark, not too bright (glaring).

There are two types of projectors on the market today: liquid crystal (LCD) and color wheel (DLP).

The LCD projector uses a three-color LCD panel for imaging, and the color wheel is imaged with a DMD chip. Compare the two machines.

The contrast of the color wheel is better than that of liquid crystals, and the black and white are distinct. Suitable for submitting documents.

**The upper liquid crystal is higher.

If you use it at home, I recommend using an LCD one.

When buying a projector, you must first consider the quality of the lamp and **. The UHP bulb produced by Philips does a good job in this regard, and it is easy to change the wick.

Brand words I recommend, Hitachi Epson . If you want to buy a second-hand Philips projector, that's great. A classic brand, but unfortunately not produced now.

It is a deception that the projector lamp can be used for more than 3,000 hours, and that is a parameter obtained in a laboratory environment, which is actually not used at all. It would be good to have up to 2000 for the family.

There is no easy way to identify.

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Lumens: The brightness unit, determines the size of the projection area, the higher the brightness, the larger the screen that can be projected, and the more suitable occasions.

Contrast: color gradation, the higher the contrast, the stronger the color layering, the more realistic.

Resolution: The precision of the screen image, the higher the pixels, the more detailed the picture, and the more information can be displayed in the same screen area.

Projection size: The regular 4:3 size is 72 84 100 120 150 200 inches.

The dimensions are diagonal. Based on 100 inches, the projection area of 100 inches is. Such as:

72 inches is multiplied by inches on the basis of 100 inches.

Your last question is "can you throw a meter", which is a problem in itself. No solution.

Generally, a 100-inch curtain can be played at a distance of 3-4 meters, and 100-inch is a regular curtain. Recommend you a few cost-effective machines.

Sony EX101 Epson C20X Panasonic UX260 Remember, you have to buy a big brand to buy a projector, and you can't get a small brand of high-tech products, especially this kind of digital product, you always have to believe that you get what you pay for. It's unrealistic to want to buy a $10 product for $5. If you are satisfied, please chase the score, thank you!

The lumen value is a unit of measurement of the visible light energy from a light source (the light source is a projector). This light energy must be perceived by the human eye. Many manufacturers, including Rich Visible, choose ANSI lumens as the standard unit of measurement.

The ANSI lumen value standard is derived by taking 9 distinct dot values on the screen and averaging them. We had to use a reliable lumen meter and project an industry standard "white" image to calculate the lumen value of a particular projector.

Some types of stereo sound are better, and some types of cars accelerate faster, but they don't necessarily have more power. In the same way, in practical applications, there are more important criteria than lumen values, such as image quality (such as whether the image is vivid, the color is vivid and clear), etc. Realistic color palette makes the red more vibrant, the green more emerald green, and the blue more blue; Higher contrast to make black and white more distinct; And the image must be clearly defined.

That's why the range of projectors for design and architecture is selling well. Of course, we want the projector to project a bright image, but we have to consider how well the human eye can receive it, because the way we perceive color affects how we react to the projected image.

The human eye does not perceive images only because they are brighter. This is most likely the reason why a 650-lumen projector looks brighter than an older 1000-lumen projector. The new projector is likely to have a better balance of red, green, and blue colors, making them more pleasing to the eye.

If you look closely, you may see that the white projection of the new projector is much purer.

In other words, the image looks brighter because the color is more pleasing to the eye and the white is purer. It's likely that when you measure relative brightness, you'll find that a projector with a 1000 lumen value is actually brighter than a projector with a 650 lumen value. When we build our projectors, we strive to balance brightness--- which we call "color temperature."

The "color temperature" labeled Kevin-degree shows how balanced we are between red, green, and blue.

Achieving the desired color also has a negative effect, i.e. a lower lumen value. In the end, we achieved an intermediate effect between color and brightness. In fact, each manufacturer has its own options, some with a focus on lumen values and others on rich colors.

It depends on how big your room is, and you refer to the table below... Presentation Environment (sqm) Screen size (inches) Optimal brightness (lumens) 15-30 60 1300-1500 30-50 80 1500-1800 50-70 100 1800-2200 70-100 120 2500 or more It is recommended to buy a 3000 lumens or so, and about 150 people are just right. When choosing a projector, you have to look at other parameters, such as contrast (high contrast image is clearer, sharp black and white are purer, and gray levels are richer), resolution (the general business jets on the market are 1024*768, your company uses this almost, the higher the more expensive).

Taken together, it is brightness 2700-3000 lumens contrast ratio 2000:1 distribution rate 1024*768 for your own reference... By the way, there are projectors that are generally divided into DLP and LCD technologies, the former is used to lecture on presentations, with high brightness and clear text, and the latter is used to watch movies and watch ** rich colors.

Hello, the information provided by the landlord is not detailed enough. From our previous experience in conference room engineering. Lumens are definitely the number one factor to consider.

And it's important to use it for meetings. Recommended DLP machine, high brightness, **low. This is my personal .

I believe it can give you a satisfactory answer.

No, lumens determine brightness and not clarity.

1. The physical resolution of the projector. To be precise, it is completely dependent on the resolution of the core imaging element chip (the mainstream DLP projector is the resolution of DMD). Projectors designed based on the same DMD chip will have the same resolution, even if the brightness is different, their resolution is the same, so in this layer of relationship, the brightness does not affect.

2. The imaging effect of the projector. For example, the brightness of the picture: if the brightness of the picture is not high, black whirring, then no matter how high the resolution is, it can't be seen clearly, a bright projector, the picture will be clearer, in this layer of relationship, the brightness will make people see more clearly.

The problem with the size of the picture:

The size of the picture is very simple, it is the picture projected by the projector, because the output brightness of the projector is constant (in the same mode), the larger the natural picture, the lower the brightness.

So on the other hand,The higher the brightness,The bigger the picture that can be cast,If the brightness is not enough,The picture is expanded,It's basically not clear,The size of the picture is large,But if you can't see clearly, it will lose its meaning。

From this point of view, the brightness is flattering, but the high lumens only determine the visibility of the picture under the large screen, and if the visibility is aside, the size of the projected picture is determined by the lens. We often see projectors with a brightness of several hundred that can be projected to100 to 300 inches,In fact, we should add:Casting can be projected,It's just not very clear。

The higher the lumens of the projector, the higher the clarity, too high will lose the details, the right one is clearer. The lumens of a projector are the brightness of the projector's light, and the higher the lumens, the less affected the projector is by the external ambient light.

Projectors with higher lumens have stronger light, clearer pictures, and less affected by external light. However, the higher the brightness, it will lead to a decrease in the contrast of the picture and lose the details of the picture, so when choosing a projector, it is more appropriate to choose3500-4000 lumens.

The higher the physical resolution of the projector, the clearer it is(1920*1080It's OK),Lumens is just brightness,The picture effect of distance projection,Relatively clear。

No, it's just a big factor in the clarity. For example, if you look at the sun, can you see the surface of the sun? But you can see the surface of the moon.

This is not,The clarity of the projector is related to many parameters,Like resolution、Contrast、Factors such as film source can affect the clarity,Of course, lumens are also one of the factors。

Lumens is a unit of luminous flux.

Projectors generally use lumens to indicate the brightness of their luminescence, and the commonly used projector lumen values are between 1000-4000 lumens. Home projectors generally do not exceed 2500 lumens. Educational and utility projectors are generally around 5,000 lumens.

The digital projectors used in theaters are generally more than 10,000 lumens, and this kind of product is not a civilian product and has not much contact. Common home and commercial projectors are available in both LCD and DLP. There is a trend towards DLP.

Answer: Hello lumens are divided into light source lumens and ANSI lumens. The light source lumens refer to the "most primitive luminous brightness level" of the projector, and the ANSI lumens are the true brightness of the projector shining on the screen into the human eye.

ANSI lumens belong to the international standard, and some projectors marked with 2000-3000 light source lumens are only 100-300 ANSI lumens.

For projectors, the higher the ANSI lumens, the greater the brightness.

It's the brightness of the projection, and unlike the nits, the lumens are more inclined to the brightness of the reflected light. The higher the value, the higher the brightness, the smaller the degree of external light receiving, and the more expensive it will be.

Brightness, the higher the number, the brighter it is.

At night, it's about 50 inches, and it's okay to see. But you have to see if the 100 lumens are marked brightness or real brightness, if it's real brightness, you can only cast 50 inches, if it's moisture, then it's basically no fun. It's better to add some money to buy a better micro projection.

At present, among the large projection brands in China,There are micro projectors with Zeco Zhige、Vivitek Lixun、OPTMA Optoma、ACER Acer These are,According to the different brightness,The price is generally in 3000-6000.

It's basically impossible to look at 100 lumens, lumens - a unit of luminous flux. A point light source with a luminous intensity of 1 candela (cd) emits a luminous flux of "1 lumen" in a unit solid angle (1 sphericity). Abbreviated as LM in English.

The so-called lumens simply refer to the brightness of a candle at a distance of one meter. An average 40-watt incandescent bulb has a luminous efficiency of about 10 lumens per watt, so it can emit 400 lumens of light. A 40-watt incandescent lamp has a luminous flux of 340 lumens at 220 volts.

Luminous flux describes the ability of light source radiation to produce a visual response per unit of time, and the unit is lumens, also known as brightness.

There are two main technologies for projectors! LCD & DLP Technology! When choosing, you should choose according to your requirements, LCD mainly highlights the bright color, DLP mainly highlights the clear text!

Lumens is the unit of brightness, the higher the lumen, the higher the brightness! DLP technology projectors generally have a higher contrast ratio than LCD technology projectors, the higher the contrast, the clearer the level!

For home projectors, DLP technology and LCD technology are available, DLP mainly emphasizes cool colors, and LCD mainly emphasizes warm colors! LCD technology brands: Epson, Sony, Hitachi, etc., mainly Japanese; DLP technology brands Optoma, BenQ, Acer, etc., mainly for American and Taiwanese brands!