Stock code:300790

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Dongguan Yutong Optical Technology Co.,Ltd

YTOT is a professional optical lens manufacturer in China. Focuses on R&D, production, sales and after-sales service of the optical lens.

Products are mainly used in high precise optical systems such as smart home, industry and automobile etc.
The headquarters of YTOT is situated in Dongguan city, Guangdong province.

YTOT successfully listed on the Shenzhen Stock Exchange in September 2019 with the stock code: 300790.




Professional optical lens manufacturer

Provide a visual fulcrum for the safety and progress of society










 Sep.2011   YTOT was established in Chang'an Town, Dongguan City, Guangdong province, China.

 Jan.2012  YTOT passed ISO9001/ISO14001 system certification.

 Oct.2015  Rated as new high-tech enterprise

Des.2015 YTOT completed the shareholding system reform

 Jun.2016   YTOT passed IATF16949 quality system certification and set up Plastic Molding Division


Aug.2018   Set up glass molding division.

Sep.2019   Listed in Shenzhen Stock Exchange.


Jun.2020   Co-built lab with Carl Zeiss


Research & Development

Research & Developmen

R&D team

The company's R&D technology center always adheres to independent innovation and masters the core technology of the industry. After years of accumulation, a strong technical R&D team has been formed!


328 patents have been applied, 306 have been authorized.

Honorary title

R&D Technology Center won the title of "Engineering Technology Research Center of Guangdong province"

Aspheric lens technology

The inside of the lens adopts a combination of aspherical lens and spherical lens. The use of aspherical lens can effectively correct various aberrations, greatly improve image quality, miniaturize the lens and obtain the most imaging effect.

Low dispersion glass material

Using low-dispersion materials, using its low refractive index characteristics to reduce the dispersion of the beam, which can effectively reduce the dispersion. It is effective in correcting axial chromatic aberration at the telephoto end and vertical chromatic aberration at the wide-angle end.

Temperature drift control

Using optical materials with low coefficient of thermal expansion, under different temperature environments, the lens does not need to be refocused, and a clear image can be obtained.

Flat image surface

The excellent optical design makes the image center to the edge uniformly achieve high pixels and high contrast, which can be better matched with high-definition network cameras.

Day and night confocal

The advanced optical design makes the visible light and near-infrared light imaging surfaces of the lens almost overlap, ensuring that the lens can clearly image both day and night.

Guarantee quality

YTOT establishes a lean production improvement system based on excellent performance, introduces a quality, environmental and social responsibility management system to ensure employee health, protect the ecological environment, and produce green and environmentally friendly products.

The company has passed ISO9001, ISO14001, IATF16949, IECQ-QC080000, intellectual property management system certification.
The products have passed CE and WEEE tests and meet ROHS and REACH standards.
UA3P surface type inspection, high and low temperature test, light inspection, MTF inspection and other multi-channel inspection items to ensure reliable product quality.


Manufacturing Advantage

YTOT  has the capacity to produce up to 25 million lenses per month.
The company strives to create automation transformation to achieve efficient and high-quality production.
Glass spherical lens processing has automatic production lines for core taking, coating, bonding and inking.
Plastic aspheric surface processing has an intelligent molding production line and an automated coating production line.
Lens assembly has a fully automated machine assembly production line, automated assembly production line, MTF automated inspection production line, automated locking production line, and multiple independent research and development machines to assist lens assembly.


Contact Us

Tel: +86-769 8926 6655 
Fax: +86-769 8926 6656
Add.: No.99 East Jinghai Road, Chang'an Town, Dongguan City, Guangdong Province, China

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