Light Transmission Meter

How to select a suitable Light Transmission Meter?

Linshang light transmission meters are widely used to measure various transparent materials, such as glass, PC, PET, PMMA, acrylic, etc. You can choose the appropriate spectrum transmission meter according to the table below.

I. The Classical Applications of Light Transmission Meters

II. The Light Sources of Light Transmission Meters

III.  Application Cases

1.  Best Lens Transmission Meter for Eyeglass Lens Evaluation

Lens Transmission Meter is a crucial tool in the eyewear industry, providing precise measurements that ensure every lens meets the quality standards. Its advanced features not only guarantee consistent optical performance but also help manufacturers comply with international standards.

The LS108 Lens Transmission Meter, also called blue light spectrum analyzer, can measure the optical transmission properties of eyeglass lenses across the UV, blue, and full visible light spectrum, ensuring each lens exhibits optimal clarity, color accuracy, and protective features. It precisely measures at a 395nm peak to verify the lens's ability to block harmful UV and purple light, while its 430nm measurement evaluates blue light filtering—critical for reducing eye strain and enhancing visual comfort in today’s screen-dominated environments.

2.  High Precision Light Transmission Meter for Smartphone IR Hole

The LS108A Lens Transmission Meter is a high-precision instrument tailored for the rigorous demands of smartphone manufacturing. In modern smartphones, the IR (infrared) holes in the cover play a critical role in facilitating sensor communication while maintaining the aesthetic and functional integrity of the device. The LS108A is specifically designed to measure the optical transmission properties through these IR windows, ensuring they meet stringent quality standards.

In practice, manufacturers integrate the LS108A into their quality control processes to accurately capture transmission data across key wavelengths. This precise measurement ensures that the IR holes deliver optimal clarity and consistent transmission performance, which is vital for effective sensor operation and overall device reliability. By providing immediate, reliable feedback, the LS108A enables rapid process adjustments, minimizing defects and enhancing production efficiency.

III.  Frequently Asked Questions

1. What is the difference between the LS183 and LS108H spectrum transmission meters?

• The LS183 spectrum transmission meter uses a slot design, and LS108H uses a desktop design, the material placement for the LS108H is more convenient than LS183 spectrum transmission meter.

• The LS183 spectrum transmission meter is made of aluminum shell material, LS108H is made of stainless steel, which is more durable.

• The LS183 spectrum transmission meter is more suitable for measuring regular, flat materials with larger size, such as glass, PC plate. The LS108H can not also measure the above materials, but also suitable for small sized, irregular shaped materials.

2. What's the "UV400" measured by LS108 lens transmission meter?

• "UV 400" means that the lenses will block 100% Ultraviolet (UV) waves shorter than or equal to 400nm

• For example: "UV400=371nm" means the total UV blocking effect of the test object can only reach 371nm.

3. Can I customize the light source with different peak wavelength？

• Linshang light transmission meter has certain requirements on the built-in light source, not all light sources are compatible. If we can purchase the light source of the specific wavelength you need on the market, we can provide you with customization services. And you need to pay additional customization fees.

• The customized products do not apply to the returns and exchanges policy. Thanks for your understanding.

4.  Can the LS183 test automotive glass for UV/IR rejection?

• Yes. The LS183 light transmission meter can measure 365nm UV, 340nm IR and 680-760nm visible light, and its width of slot is 47mm, making it suitable for measuring glass with film, PMMA, PC and other large thickness materials.