In the photovoltaic laboratory, engineers no longer suspend experiments due to rain. In the aerospace test room, researchers do not need to repeatedly try and make mistakes to replicate space light. Inside the agricultural greenhouses, farmers bid farewell to the helplessness of "relying on the weather for harvest" - all these changes are attributed to the "hardcore equipment" that Saifan Optoelectronics has developed over the past two decades in the field of optoelectronics: the solar simulator. With its core strength of "precision to the micrometer, stability to the hour, and customization to the scene", it brings "controllable light" to fields such as photovoltaic, aerospace, scientific research, and agriculture, transforming innovation from "passive waiting" to "active breakthrough".
Photovoltaic R&D: 0.3% stability + independent algorithm, maximizing "experimental efficiency"
"Previously, when testing perovskite solar cells, the morning data was 25.1%, but it dropped to 23.8% in the afternoon on a cloudy day. Half a year was spent on 'verifying data', and the research and development progress lagged behind by 40%." " Wang, the R&D director of a leading photovoltaic enterprise, was once at a loss about the capriciousness of natural light. It was not until the introduction of the Saifan solar simulator that the R&D pace completely "shifted gears and accelerated".
The "accuracy" of this device conceals the core technology of Saifan: The independently developed 5th generation intelligent spectral fitting algorithm can achieve an A + level (0.875-1.125) spectral matching degree across the entire 400nm to 1100nm band. Even in the near-infrared region of 780-1100nm, which is easily overlooked by traditional equipment, the energy distribution restoration accuracy exceeds 98%. It is equivalent to installing a "microscope of light" for battery testing. And its stability is an industry benchmark: the light intensity fluctuation is as low as ±0.3% per hour. After a continuous 10-hour test, the light intensity change does not exceed "the brightness of one candle". The spatial uniformity reaches ±2%, ensuring that every inch of the battery cell is "evenly illuminated", and the data deviation is strictly locked within 1%.
With Saifan, we identified the core issue in just 12 days - the battery's near-infrared absorption efficiency was 13% lower. After the Wang team optimized the materials, the battery conversion efficiency jumped to 27.3%, and the results were published in ACS Energy Letters. In the mass production stage, an automated testing line composed of 8 Saifan simulators is seamlessly integrated with the MES system of the production line. The testing speed reaches 60 pieces per minute, and the A-grade product rate has increased from 88% to 94%, reducing the loss of defective products by over 16 million yuan annually. Even more surprisingly, the equipment adopts energy-saving LED light sources, with a total power consumption of only 650W, which is 70% more energy-efficient than traditional xenon lamp equipment. A 1GW production line can save 200,000 yuan in electricity costs annually. "This is not merely a device; it's the 'efficiency engine' we have developed!" " Engineer Wang said.
Aerospace testing: -40℃ tolerance + 7-day customization, providing an insurance for "space safety"
"In-orbit life assessment of spacecraft battery wings: A 1% deviation in light intensity can lead to a three-year error. Traditional simulators have a light intensity drift of over 4% at a low temperature of -40 ℃, and the test data is simply not usable." " Sister Li, a test engineer from a certain team in China's space industry, once stayed up all night testing the power system of the space station. Saifan's customized solutions have become a "reassuring pill" for aerospace testing.
To adapt to the extreme environment of space, Saifan has equipped the equipment with "aerospace-grade protection" : military-grade 6061-T6 aluminum alloy body + optical chamber airtight packaging. It can operate stably within the temperature range of -40 ℃ to 60℃, with a temperature fluctuation of ≤±0.3℃ and a spectral output deviation of always ≤±0.5%, which is equivalent to putting on a "space protective suit" for the equipment. When simulating the AM0 spectrum in space, through calibration with 200,000 sets of space measurement data, atmospheric interference is precisely removed, and the irradiance error is ≤±1%, achieving a "1:1 replication" of space lighting. The 0.1ms high-sensitivity sensor corrects the light intensity fluctuation in real time. After 720 consecutive hours of low-temperature irradiation testing, the light intensity deviation is always ≤±1.2%, fully recording the aging law of the material.
Based on these data, the team developed a new type of anti-radiation coating, extending the in-orbit lifespan of the battery wing by three times. During the Mars exploration mission, the Saifan team demonstrated an "extremely fast response capability" : they completed the development of the "AM0 + Infrared Enhancement" module in just 7 days, increasing the irradiance in the 800-1100nm band by 30%, perfectly replicating the Martian light, and helping to increase the power generation efficiency of the Mars rover's sails by 22%. "This device from Saifan has given us 100% confidence in the power safety of space missions!" " Sister Li sighed.
Scientific Research Agriculture: 1% Precision Regulation + Scene Simulation, Turning "Light formula" into "Harvest Formula"
To study photocatalytic hydrogen production, it is necessary to adjust the proportion of the ultraviolet band from 5% to 15%. Traditional equipment only has a fixed spectrum, and the experiment has been stuck for half a year with no progress. The predicament of Teacher Zhou from Qingdao University of Science and Technology was completely broken by the "customization capability" of Saifan Simulator.
This device can be called a "palette of light" : The ultraviolet (350-400nm), visible (400-760nm), and near-infrared (760-1100nm) bands support 1% precision adjustment. The light intensity can be freely switched from 0.1sun (on cloudy days) to 2sun (strong midday light), and it can also simulate 8 lighting scenarios such as day-night alternations and pulsed light. Professor Zhou's team increased the efficiency of photocatalytic hydrogen production by 40% through precise control, and the results were published in "Applied Catalysis B: Environmental".
In the agricultural sector, it is even a "magic tool for increasing production". Lao Yang, a strawberry grower in Shandong Province, once suffered from insufficient winter sunlight. The sweetness of his strawberries was only 8 degrees, with an average yield of less than 2,000 kilograms per mu and a selling price of 6 yuan per jin. After the introduction of Saifan equipment, the technical team customized a solution of "65% red light + 10% blue light +2 hours of 380nm ultraviolet light", supplementing 6 hours of "customized light" every day. After one growing season, the sweetness of strawberries soared to 11 degrees, the anthocyanin content increased by 18%, the yield per mu rose to 2,150 kilograms, the price per jin rose to 12 yuan, and the annual income of 20 mu of land increased by more than 200,000 yuan. "Before, we relied on the weather for a living. Now, we make money from 'Saifan Light', and the electricity bill is even half that of traditional supplementary lights!" " Old Yang smiled and said that nowadays, more than ten strawberry bases around have followed suit and adopted this "light formula".
Full-cycle service: 48-hour on-site visit + free calibration, ensuring innovation is "worry-free
Saifan Optoelectronics is well aware that good equipment requires good service as a foundation. The seven major regional spare parts centers across the country have over 95% of the commonly used spare parts in stock, providing a 7× 24-hour response. Equipment malfunctions can be repaired within 48 hours. A photovoltaic enterprise's production line simulator suddenly broke down. Engineers from Saifan arrived at the scene within 2 hours and completed the repair within 3 hours, without affecting the production of the day. For research institutions, we offer "one-on-one" training. After a certain university's laboratory made the purchase, engineers provided on-site guidance for three consecutive days, helping the team master core operations such as spectral regulation and data calibration within a week. When purchasing the equipment, you can also enjoy the first spectral calibration service for free. The lifespan of the LED light source is up to 10,000 hours. Assuming it is used for 8 hours a day, it does not need to be replaced in 3 years, saving 50,000 yuan in replacement costs compared to traditional equipment annually.
Today, Saifan solar simulators have served over 200 customers worldwide. The repurchase rate of core customers is 82%, and 85% of new customers come from referrals by existing customers. From the efficient operation of photovoltaic production lines to the safe execution of space missions and the joy of harvest in the fields, Saifan has always been committed to "hardcore optical technology" to help various industries break through the shackles of light. If your innovation is also hindered by the problem of light exposure, this "light that understands your needs" might just be the key for you to break through the bottleneck.
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