Product Description

Intended Audience: Designers, architects, engineers, users, general public, environmentalists, utilities.
Intended Interest Categories: Specifier (US), Affected (UA), Public Interest (UP), Academic, Research (GAR), Government, Regulatory (GGR), General SME (GSME), Organizational (OM) Test Equip User (TEU), Test Equip Manf (TEM).
Description: This document provides an overview of visual perceptions and performance, covering topics such as brightness, glare, flicker, visibility, and illuminance criteria; as well as basic descriptions and background of visual phenomena in order to guide lighting practitioners.
Page count: 59 pages
Publisher: Illuminating Engineering Society (2025)
SKU: ANSI/IES LS-8-25
ISBN: 978-0-87995-484-0
Previous edition: LS-8-20
Chapters:
- 1.0 Introduction and Scope
- 2.0 Psychophysics: Studying Perceptions and Performance
- 3.0 Basic Parameters of the Visual Stimulus
- 4.0 Visual Perceptions
- 5.0 Visual Performance
- 6.0 The Bases for Lighting Recommendations
Illuminating Engineering Society. ANSI/IES LS-8-25, Lighting Science: Vision – Perception and Performance. New York: IES; 2025.


