When purchasing a smart projector, brightness is one of the most important factors to consider. The higher the brightness, the better the image quality will be under similar lighting conditions. Many modern smart projectors now exceed 1000 ANSI lumens, which is significantly brighter than traditional projectors. For home use, this level of brightness is already excellent and suitable for most environments.
Understanding Different Brightness Measurements
ANSI Lumens: This is a standard unit used to measure a projector’s brightness. It refers to the amount of light that the projector emits onto the screen.
The measurement process involves:
1. Placing the projector 2.4 meters away from the screen.
2. Using a 60-inch screen.
3. Measuring the illuminance at nine points arranged in a "T" shape on the screen using an illuminance meter.
4. Calculating the average illuminance and multiplying it by the screen area to get the ANSI lumen value.
ANSI Lumens 9-Point Test
ISO Lumens: This is another standard for measuring brightness, developed by the International Organization for Standardization (ISO). It provides more detailed and consistent testing procedures compared to ANSI.
While ANSI standards are more common in the US and Europe, ISO lumens are becoming increasingly popular among Japanese manufacturers as well.
Challenges with Projector Brightness
Traditional projectors tend to be large due to their high-power lamps, which produce high brightness but also generate a lot of heat and consume significant energy. This requires ample space for cooling, making them less portable.
Modern micro-projectors typically use LED light sources, which are more energy-efficient and compact. However, they generally have lower brightness compared to traditional lamps. Because LEDs are spread out, the light concentration is not as strong. As a result, current micro-projectors usually range from dozens to thousands of lumens, and their sizes are gradually increasing.
The size of the imaging chip not only affects resolution but also plays a role in brightness. As shown in the table above.
The 0.45-inch chip is currently the mainstream in high-end micro-projectors, offering a resolution of 1280×800. Projectors using this chip typically cost around 3,000 yuan.
What About Ultra-High Brightness?
Although today's micro-projectors offer impressive brightness levels, there may still be limitations in very bright environments. Even 200 ANSI lumens and 1000 ANSI lumens may not show much difference in daylight. However, in low-light conditions, the benefits of higher brightness become much more noticeable.
For more information about smart TVs and media boxes, visit Smart TV/box Information Network Sofa Butler (http://), a leading Chinese website dedicated to smart TVs and TV boxes, providing news, reviews, software updates, and more. If you have any questions, feel free to ask!
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