Phân biệt giữa cường độ ánh sáng của đèn LED và độ rọi lux

What is illuminance? Standards for illuminance in lighting design

When you step into a living space, have you ever wondered if the lighting is sufficient for your eyes? Or more simply, do you know that not every space requires the same level of brightness? This is where the concept of illuminance comes in. In this article, Zegal will guide you through the details of illuminance, from its definition to its practical applications in designing living spaces.

1. What is standard illuminance?

1.1 What is illuminance?

Illuminance (Lux) measures the amount of light illuminating a surface. Specifically, it reflects the amount of light emitted by a source over a given area. Illuminance is measured in lux (lx), where 1 lux equals 1 lumen distributed over 1 square meter.

Illuminance (Lux) is a metric that measures the amount of light on a surface.
Illuminance (Lux) is a metric that measures the amount of light on a surface.

Why is illuminance important? It not only affects comfort levels but also impacts productivity, health, and mood in a living space.

1.2 What is standard illuminance?

Standard illuminance refers to the recommended illuminance levels for various spaces to ensure optimal lighting efficiency. For instance, the standard illuminance in an office might range from 300-500 lux, while in a library, the level might be higher.

Standard illuminance provides clear benchmarks for designing lighting in living and working spaces.
Standard illuminance provides clear benchmarks for designing lighting in living and working spaces.

2. How to calculate illuminance and illuminance standards for specific spaces

The formula for calculating illuminance is:

Illuminance (Lux)=Luminous flux (Lumens)Area (square meters)\text{Illuminance (Lux)} = \frac{\text{Luminous flux (Lumens)}}{\text{Area (square meters)}}Illuminance (Lux)=Area (square meters)Luminous flux (Lumens)​

Where:

  • Luminous flux (lm): The total light output from a source.
  • Area: The surface area illuminated by the light.

Below are some standard illuminance values for common spaces:

Space Standard Illuminance (Lux)
Living room 100-200
Bedroom 100-200
Office 300-500
Kitchen 200-300
Library 300-500

Adhering to these standards helps create comfortable and efficient living and working environments.

Following these standards ensures comfortable and efficient living and working spaces.
Following these standards ensures comfortable and efficient living and working spaces.

3. Why is calculating standard illuminance important?

Calculating standard illuminance is not just a technical exercise. It plays a critical role in:

  • Optimizing user experience: Properly illuminated spaces enhance comfort and focus.
  • Protecting health: Insufficient or excessive light can cause eye strain, fatigue, and other health issues.

Setting the mood: Illuminance can influence the ambiance. Dim lighting fosters relaxation, while bright lighting energizes the space.

Calculating standard illuminance is vital in lighting design.
Calculating standard illuminance is vital in lighting design.

4. Illuminance standards for bedrooms and living rooms

Here are the recommended illuminance levels for specific areas:

  • Bedroom: Use Barrisol stretch ceilings to maintain an illuminance level of around 100-200 lux. This creates a quiet, relaxing atmosphere ideal for rest.
  • Living room: The required lighting level ranges from 100-200 lux. However, depending on the purpose, you can increase the illuminance for a lively ambiance during gatherings.
Space Standard Illuminance (Lux)
Bedroom 100 – 200
Living room 100 – 200
Kitchen 200 – 300
Office 300 – 500
Library 300 – 500

5. Difference between light intensity and illuminance

Many people confuse light intensity with illuminance. Light intensity, measured in lumens, indicates the total light emitted by a source, while illuminance, measured in lux, refers to the amount of light that reaches a surface.

With LED lights, the light intensity is often high, but without proper placement, the illuminance on surfaces may fall short. This highlights the importance of not only considering light intensity but also how light is distributed in the space.

Light intensity is measured in lumens, while illuminance is measured in lux.
Light intensity is measured in lumens, while illuminance is measured in lux.

6. Conclusion

We hope this article from Zegal has clarified what illuminance is and its importance in designing living spaces. Understanding illuminance and lighting standards is essential to creating comfortable and efficient environments for living and working.

For further consultation, please contact Zegal Vietnam at the following locations:

Zegal Hanoi

112 Vo Chi Cong, Nghia Do Ward, Cau Giay District, Hanoi

Zegal Ho Chi Minh

319 – C9 Ly Thuong Kiet, Ward 15, District 11, Ho Chi Minh City

Hotline: +84969 14 6688

Không gian Floraison kết hợp nghệ thuật mùi hương và giải pháp smarthome LTECH, tạo nên trải nghiệm mua sắm tinh tế.

Enhancing Perfume Shop Experience with Smart Home

In the realm of high-end retail, the customer experience extends beyond the products themselves; lighting plays a pivotal role in shaping the atmosphere and defining the brand identity. For a perfume boutique, in particular, every display detail requires meticulous attention to fully convey the essence of each fragrance. At Floraison, an LTECH smarthome project harmoniously

Xem thêm

Overview of mirror ceiling projects completed by Zegal

Mirror ceilings are becoming a sought-after solution in many modern architectural projects. Beyond merely creating a reflective effect, this solution visually enhances the depth of a space. Zegal tailors its approach to the specific architectural characteristics of each project. Developments such as Samsung West Lake, La Festa Phu Quoc, and Thiso Mall Sala demonstrate the

Xem thêm
Không gian Khẩn Thức Vietnamese Cuisine kết hợp chất liệu gỗ và ánh sáng ấm.

Discover the LTECH Smart Home System at Khan Thuc

Located in Hanoi, Khan Thuc Vietnamese Cuisine offers a dining experience rooted in the culinary traditions of Northern Vietnam. The restaurant’s interior impresses with its use of wood, rustic furnishings, and warm lighting. Beneath this nostalgic aesthetic lies a modern technological system; the LTECH smart home solution is integrated to control both lighting and air

Xem thêm
Ánh sáng tạo không gian nghỉ ngơi ấm cúng, dễ điều chỉnh.

Discover lighting design trends for 2026

Lighting does more than just ensure visibility; it shapes emotions and defines the spatial experience. In 2026 design trends, lighting scenarios have emerged as a crucial solution. This approach combines multiple layers of illumination with flexible control capabilities, allowing a space to transform its atmosphere to suit specific activities. From homes and hotels to showrooms

Xem thêm

Reputable Translucent Printed Ceiling Contractor in HCMC

A backlit printed ceiling is an interior decoration solution that combines printed imagery with an LED lighting system. This technology transforms the ceiling into a visual focal point while creating unique lighting effects. In Ho Chi Minh City, the demand for installing backlit printed ceilings is rising across residential projects, showrooms, offices, and shopping centers.

Xem thêm
.