CLOSE

Products
HUD


Analysis of the Technological Trend of Automotive Lens


With the increasing demand for perception distance and more detailed perception content in ADAS functions, cameras with higher resolution are becoming more popular. As the most important imaging optical component, automotive lens have higher requirements.


Lens material: glass-plastic hybrid


Automotive lenses require high durability and thermal stability. In terms of materials, lens elements for automotive lens can be made of glass or plastic. Glass lens elements have high durability, scratch resistance, and better temperature performance, and therefore are more commonly used in high-end products.


However, plastic lens elements are cheaper but have poorer imaging effects and are easily deformed in the harsh environments of automobiles, affecting imaging quality.


Currently, taking cost and performance into account, automotive lens manufacturers are gradually beginning to use glass-plastic hybrid lenses as their main product, while some high-end lenses adopt all-glass solutions.


The performance comparison between plastic and glass lens elements is as follows:


Plastic lens elements:


Advantages: Lightweight, low cost, low process difficulty, suitable for mass production;


Disadvantages: Slightly lower transmittance, poor heat resistance, large thermal expansion coefficient, poor wear resistance, low mechanical strength, etc.


Glass lens elements:


Advantages: High performance, high transmittance;


Disadvantages: Mainly difficult to mass produce, low yield rate, high cost.


Lens processing technology: non-spherical lens elements


Spherical lens elements can cause aberration problems, that is, the focal point of light entering from the center of the lens does not coincide with that of light entering from the edge of the lens, resulting in imaging blur. Spherical lens elements require multiple lens elements to be combined to reduce aberrations.


Non-spherical lens elements are lens elements composed of non-spherical curved surfaces in addition to spherical and planar curved surfaces. By changing the curvature of the lens element, light can converge at a fixed focal point, solving the problem of aberration, and only one lens element is required to achieve this. Therefore, non-spherical lens elements have the advantages of miniaturization, lightweight and good imaging effects, and have become the best solution for high-pixel automotive lens.


Plastic non-spherical lens elements are produced by injection molding, while glass non-spherical lens elements are produced using high-quality optical glass and precision-controlled hot-pressing technology.


Self-cleaning and anti-fogging and defrosting of automotive lens


Self-cleaning and anti-pollution:


Currently, mainstream manufacturers will at least coat the surface of the automotive lens with a waterproof film, which can effectively remove dirt by means of water spray cleaning.


Anti-fogging and defrosting:


Currently, there are two directions in the industry. One is to coat the lens with a film, with a waterproof film on the outside of the lens and a hydrophilic film on the inside; the other is to use a heating scheme, either heating the entire lens or applying a transparent conductive film to the surface of the lens to achieve heating, thereby achieving the purpose of defogging and defrosting.


Related Products
What's New in Sunny Automotive Optech
Exhibition Invitation: Sunny Automotive Optech Welcomes You to the Changchun International Optoelectronic Expo 2024!

Exhibition Invitation: Sunny Automotive Optech Welcomes You to the Changchun International Optoelectronic Expo 2024!

2024-07-03

Sunny Automotive Optech Won ‘FORVIA Best Supplier Award’

Sunny Automotive Optech Won ‘FORVIA Best Supplier Award’

2024-04-28

New Trend in Intelligent Driving: ADAS Hybrid Lens

New Trend in Intelligent Driving: ADAS Hybrid Lens

2024-02-02

Inquiry

Your Name*:
Email*:
Phone:
Country:
Company*:
Company Type*:
Company Website:
Content*:

Excellent Customer Service Ability

  • Key customer manager mechanism

  • Oversea supporting points

Excellent Process Control Ability

  • Fully automated production

  • DMC traceability management

  • VDA6.3 / IATF16949 verifications

Excellent R&D Ability

  • Advanced technology new product development cooperation

  • Cost-effective optical solution proposal based on customer needs

  • Ecosystem resource integration