Xiamen Mingjing Optical Technology Co., Ltd.

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Xiamen Mingjing Optical Technology Co., Ltd.

Xiamen Mingjing Optical Technology Co., Ltd. was registered and established on September 1, 2010.

18/06/2026

The requirements for glass lenses in monitoring and automotive applications can be seen as a test.
The surveillance camera needs to work continuously outdoors for several years, and the car mounted camera needs to maintain a locked target in vibration and temperature differences. The two have one thing in common: once installed, there is no opportunity for frequent calibration. The value of glass lenses in this scenario lies not in their peak performance at the factory, but in their ability to capture images even after being released for several years. UV irradiation does not cause yellowing, humid and hot environment does not mold, and temperature changes dramatically do not shift the focus - these may sound like basic requirements, but it is not easy to achieve solid results. At the design level, infrared confocal is a necessary option for surveillance lenses, while in vehicles, there is an additional requirement for focal plane stability at high and low temperatures. A lens that can do both of these things at the same time cannot do without coating, structure, and glass material selection.
lens lens lens

12/06/2026

The core advantage of glass lenses: stability is the ultimate benchmark.

The fundamental reason glass lenses are irreplaceable in high-end applications such as industrial, automotive, and security systems is just two words: stability. First is thermal stability.

The coefficient of thermal expansion of glass is much lower than that of plastic. Within a temperature range from -40°C to +85°C, the curvature radius and thickness of glass lenses change very little, making focal point drift unlikely. This property enables automotive cameras to clearly capture distant targets even after prolonged exposure to sunlight.

Next is optical stability. Glass has a low refractive index variation with temperature, and when combined with an appropriate structural design, it can effectively control image quality degradation caused by thermal drift. This advantage is particularly critical in applications such as infrared confocal imaging and precision measurement, where focal accuracy requirements are extremely high.

Finally, there's long-term stability—also known as durability. Glass lenses do not yellow, become brittle, or suffer reduced transmittance over time due to UV exposure and humid heat, as plastic lenses often do. A high-quality glass lens will maintain solid image quality even after several years of use.

lens lens lens lens

01/06/2026

Once there is fog inside the lens, even the highest resolution is useless. Car mounted cameras not only need to withstand vibrations and impacts, but also maintain stability in the intense temperature and humidity changes from humid rainforests to high-altitude snowy plains. True reliability design, from moisture-proof treatment at the edge of the lens to the selection of breathable film and sealing of the housing, every step is to prevent water v***r from entering the inside of the lens.

25/05/2026

No matter how beautiful the MTF at room temperature is, it cannot withstand the focal drift after one high and low temperature cycle. The core of in car optics is not peak performance, but "predictability" over the entire temperature range and lifecycle. When your camera can accurately recognize pedestrians 100 meters away even after exposure to sunlight, that is where the design experience value lies.
lens recorder lens

13/05/2026

In recent years, the lens industry has been pursuing full frame and large image surfaces, but it is easy to overlook the fact that the resolution of each inch lens is close to the diffraction limit, and the sensitivity to assembly tolerances and temperature drift will increase exponentially. The true expansion of the gap is usually not the peak of the MTF curve, but finding the minimum compromise between thermal balance, stray light suppression, and batch production consistency. Optical design has never been an isolated technical competition, but an honest response to physical boundaries.
lens lens lens lens

09/05/2026

When selecting lenses, MTF curve is the most essential but often misunderstood tool. It appears to be a line with ups and downs, but in reality, it is a "physical examination report" of the camera's ability to reproduce different spatial frequencies (detail thickness). The solid and dashed lines closer to the top of the chart represent the level of transmission of meridional and sagittal textures, respectively; The earlier the curve collapses, the faster the high-frequency details decay. If the "S" and "T" lines diverge too much, it will indicate obvious astigmatism - the uniformity of the image edges will be affected. I hope this concise visual perspective can help customers shift from "looking at numbers" to "understanding performance structures".

22/04/2026

We are a Chinese optical lens manufacturer，Welcome to consult with enterprises from all over the world lens

10/12/2025

20-year professional optical lens manufacturer！

27/06/2025

You will discover the difference our company brings by choosing our products.We prioritize customers, pursue continuouslythe technologicalinnovation,and strive for product excellence."
if you interested in the product, you can email:[email protected];
This is the website: www.mjoptc.com

22/06/2025

1/1.8" sensor | Zero distortion (

Address

Xiamen, Fujian
Xiamen
361101

Telephone

+8615980759818

Website

http://www.mjoptc.com/

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