In-depth Analysis of the Luminous Performance of Inorganic Self-Luminous Bricks by a Manufacturer

　　In scenarios such as outdoor water conservancy walkways, power plant yards, municipal passages and fire evacuation routes, the stability of nighttime warning and marking guidance directly affects operational safety. Traditional electrical safety signs require wiring and regular maintenance and replacement, and will lose warning and guiding functions immediately once power fails. As a new grade of engineered paving material, inorganic self-luminous bricks require no electricity and can glow autonomously for more than 10 hours in darkness to deliver all-weather warning and guidance. As an original equipment manufacturer, Shiming Optics provides a comprehensive analysis of the actual luminous performance of inorganic self-luminous bricks from the perspectives of manufacturing process, structural composition, performance characteristics and application value.

I. Forming Process and Layered Structure of Inorganic Self-Luminous Bricks

　　Core Forming Process: The product adopts multiple inorganic minerals as raw materials and is integrally sintered and fused at high temperatures of one thousand degrees. It is not a post-applied or pasted external luminous coating. This fundamentally eliminates delamination, powder shedding and peeling of the luminous layer, laying a material foundation for long-term stable luminescence.

　　Three Precisely Designed Functional Layers:

　　Top High-Density Crystal Glaze Layer: A high-transmittance inorganic crystal layer with self-cleaning, wear-resistant and anti-corrosion properties. On one hand, it efficiently transmits natural light and ambient light to ensure light absorption efficiency of the middle light-storing layer. On the other hand, it isolates sediment, abrasion as well as acid and alkali erosion from the outside world and protects the internal energy band structure from damage.

　　Middle 4mm-Thick Inorganic Light-Storing Luminous Layer: Sintered and fused into a dense monolith at one thousand degrees simultaneously. It has sufficient energy storage capacity and serves as the core functional layer to achieve long-term stable luminescence.

　　Bottom 10mm-Thick Substrate Carrier Layer: A high-strength inorganic sintered base material that greatly improves the product’s impact resistance, rolling resistance, weather resistance and crack resistance, ensuring the overall structural stability of bricks under heavy load and large temperature difference conditions outdoors.

II. Core Luminous Performance of Inorganic Self-Luminous Bricks

　　Inorganic self-luminous bricks outperform common luminous materials significantly in four dimensions: luminous duration, luminous stability, light absorption adaptability and long-term cycling performance.

　　Luminous Duration: After sufficient light absorption in a single cycle, the product can continuously emit light autonomously for more than 10 hours in dark environments. The 4mm complete light-storing luminous layer has ample energy storage capacity, and its luminous curve declines gently instead of sudden brightness drop and failure within a short time. This performance far exceeds the basic specification requirement of ≥90 minutes for fire emergency signs. It can fully cover scenarios including nighttime patrol, all-night emergency duty and long-term search and rescue after fires. Even without external lighting throughout the night, it can continuously provide clear boundary warnings and route guidance.

　　Stable Luminous Performance: The product features high initial brightness followed by gentle brightness attenuation. Graphics and texts remain clearly distinguishable after being placed in darkness for 2 hours, meeting visibility requirements for safety guidance throughout the whole period. Notably, luminous brightness rises with higher ambient temperature. Its warning effect becomes more prominent in high-temperature factory areas and summer outdoor environments, catering to safety demands of high-risk and high-temperature scenarios.

　　Light Absorption Efficiency: Inorganic self-luminous bricks have strong compatibility with light sources for energy storage. Direct natural sunlight on sunny days, scattered light on cloudy days and indoor lighting can all act as energy sources. Full energy storage can be completed within 5–20 minutes under normal ambient illuminance; higher illuminance leads to faster light charging.

　　Long-Term Stability: The physical properties of the inorganic light-storing luminous layer are extremely stable. The light absorption-energy storage-light emission cycle can be repeated infinitely, with no brightness degradation caused by increased use frequency. Under normal operating conditions without violent external damage, there is no obvious attenuation in luminous brightness and duration after more than 15 years of service, truly realizing one-time paving and long-term maintenance-free operation.

III. Differences in Luminous Performance Between Various Luminous Materials

　　Compared with organic luminous films: the latter only has a thin luminous powder coating on the surface, with a luminous duration of approximately 1 hour. Coating aging and severe luminous attenuation will occur after half a year of outdoor exposure. Inorganic self-luminous bricks are integrally fused with all-inorganic materials, featuring wear resistance, long-term luminescence for 10 hours, stable performance and excellent weather resistance in open-air outdoor environments.

　　Compared with acrylic luminous panels: the latter are made by physically mixing powder with plastic substrates, suffering from fast luminous attenuation, yellowing and brightness loss under long-term illumination. The all-inorganic structure of inorganic self-luminous bricks resists yellowing and maintains constant luminous performance year-round.

　　In summary, the superior luminous performance of inorganic self-luminous bricks mainly relies on the high-temperature fusion process at one thousand degrees and the three-layer stable structure composed of a high-density crystal glaze layer, a 4mm light-storing luminous layer and a 10mm carrier layer. It achieves the combined performance of 10-hour long-duration luminescence, uniform and stable brightness, and no performance degradation over 15 years. As an original manufacturer, Shiming Optics adopts an all-inorganic integrated sintering structural design, which is the core competitive advantage distinguishing this product from ordinary luminous materials. It can perfectly meet various high-standard long-term engineering scenarios including water conservancy, power, municipal works and fire protection. For engineering selection, integrated sintered inorganic materials should be chosen to fundamentally avoid pain points such as fast luminous attenuation and short service life, and build an all-weather, maintenance-free long-term safety protection system.