屏幕增益计算器 — 由增益比计算亮度和英尺-朗伯 | TheaterOwl

Calculating Screen Gain is a fundamental and crucial step in home theater design. It is not just about measuring distance; it must be designed based on scientific evidence to maximize human visual perception limits and immersion. Incorrect settings can cause eye strain or fail to take advantage of resolution benefits. This tool complies with industry standards such as THX and SMPTE guides to provide the most precise data.

工作原理

This system utilizes complex trigonometry and optical formulas. Based on the input variables (screen size, resolution, viewing angle, etc.), it simultaneously calculates the minimum distance where pixels do not appear clustered and the maximum immersion distance that fills the entire field of view. All results are reflected in real-time, suggesting figures optimized for the user's environment.

应用场景

• When simulating the installation space before purchasing new Screen Gain equipment
• When wanting to optimize the performance of an existing home theater system and achieve professional-level tuning
• When needing to find a compromise for the best audiovisual experience within space constraints

如何使用幕布增益计算器

输入幕布尺寸、增益系数及投影机 ANSI 流明，即可以英尺-朗伯为单位计算亮度。

THX 建议 12–22 英尺-朗伯。ISF SDR 目标为 16 fL。标准哑白 = 增益 1.0，灰幕 0.8–1.0，高增益 1.3–2.5。

增益越高亮度越大，但观看锥角越窄。家庭影院推荐增益 1.0–1.3。