How to: See true ISO lumen of the projector with these few methods

vivian334

Member
According to the standard ANSI lumen on the projector, the ISO lumen value can be calculated, and some products directly give the ISO lumen value. The ANSI standard lumen effect is equivalent to 6 times the ISO standard lumen effect. If expressed in numerical values, the ANSI standard 250 lumens playback effect is equivalent to the ISO standard 1500 lumens playback effect .

ANSI
(American National Standard Institute) Lumen:


Lumen (Lumen) is a unit to measure the brightness of the projector, which refers to the luminous flux (visibility) emitted from the projector. The measurement method is by the American National Standard Institute (American National Standard Institute) ), The complete unit of measurement is ANSI Lumen.

ISO
(the International Organization for standardiztion) lumens:


ISO is an organization established to achieve international standardization. ISO members are international groups that develop international standards through the exchange of technical activities . The ISO documents stipulate various standards on the projector, including the brightness detection standard of the projector, the standard of technical terms, noise measurement, etc ...


Dangbei F1 Projector

Early projections were expressed in terms of the US "ANSI" standard, but as Japanese projections provided market share in China and global sales increased, people gradually became accustomed to the ISO standard method. The current domestic projection market ANSI standard Compatible with ISO standards. The ANSI standard lumen effect is equivalent to 6 times the ISO standard lumen effect. If expressed in numerical values, the ANSI standard 250 lumens playback effect is equivalent to the ISO standard 1500 lumens playback effect.

How to choose projector by lumen:
1. The lumens of the home projector should be 1500-2500.​
2. Lumens for educational projectors should be between 3000-4000.​
3. Lumens for business projectors should be around 2000-3000.​
4. The lumens of the engineering projector should be more than 4000.​

The above lumen values are for reference only, and need to change according to changes in the size of the environment if necessary. For example, in a space of 15-30 square meters, the recommended lumen of the projector is between 100-800; in a space of 35-50 square meters, the recommended lumen of the projector is between 1500-2000 and between 60-100 square meters For space, it is recommended to choose between 3000-4000 lumens for projectors. In a space of 120-200 square meters, it is recommended to choose more than 4000 lumens for projector brightness.
 
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