Key Takeaways

• Automotive grade lenses for ADAS cameras are optical components that comply with automotive industry standards, with high environmental adaptability, optical stability and anti-interference performance.
• The design of ADAS automotive grade lenses focuses on wide field of view, low distortion, high resolution and multi-scenario adaptability, matching the functional requirements of different ADAS camera installation positions.
• TOWIN’s ADAS automotive grade lenses cover multiple specifications such as IP67/IP69K waterproof, -40°C~+85°C wide temperature adaptation, and 2MP~8.3MP resolution, suitable for front view, surround view, side view and other ADAS camera scenarios.
• Core parameters of automotive grade lenses include focal length, field of view, distortion, resolution, waterproof grade and working temperature, which are the key to matching ADAS camera functions.
• TOWIN provides customized lens development services for ADAS scenarios, and all products meet the material and performance requirements of automotive regulations.

Introduction

ADAS (Advanced Driver Assistance Systems) have become the core of modern intelligent driving, and the automotive-grade lens as the “eye” of ADAS cameras directly determines the perception accuracy and driving safety of the system. TOWIN, a professional optical lens supplier, has developed a series of high-performance Automotive lens tailored for ADAS camera scenarios, meeting the strict requirements of vehicle regulations in terms of optical performance, environmental adaptability and structural stability.

1. Core Definition of Automotive Grade Lenses for ADAS Cameras

Automotive grade lenses for ADAS cameras are professional optical lenses specially designed for the automotive intelligent driving system, which are different from ordinary industrial and surveillance lenses, and their core attributes are reflected in full compliance with automotive industry technical specifications and extreme environmental adaptability.

The core characteristics of such lenses are:

• Comply with the reliability and durability requirements of automotive electronic components, and can work stably for a long time in the complex vehicle environment.
• Realize high-precision image collection, providing clear visual data for ADAS algorithms such as obstacle recognition, lane keeping, and automatic parking.
• Integrate multiple functional designs such as waterproof, dustproof, anti-glare, and infrared light passing to adapt to all-weather and complex road conditions.
• The structural design is compact and compatible with the miniaturization trend of ADAS camera modules.

2. Optical Design of Automotive Grade Lenses

The optical design of ADAS automotive grade lenses is centered on the perception needs of intelligent driving, and the core design logic is to balance “wide field of view, high resolution and low distortion”, while taking into account the adaptability of complex light environments. TOWIN’s optical design for automotive grade lenses has the following key points:

• Multi-field of view matching design: According to the different functions of ADAS cameras (front view, surround view, side view), design lenses with different focal lengths and field of view angles, such as ultra-wide angle (≥120°) for surround view and medium and long focal length for long-distance front view recognition.
• Low distortion optimization: Adopt advanced optical lens group structure (such as 6G+IRCF, 8G+IRCF), control the distortion rate to a low range, avoid image deformation and affect the accuracy of ADAS algorithm recognition.
• All-weather light adaptation: Integrate visible light + 940nm infrared pass filter or built-in IR filter, realize clear imaging in day/night, rain/fog and other low-light environments, and match the night vision function of ADAS cameras.
• Surface coating technology: Apply hydrophobic membrane coating on the lens surface, which has water repellency and anti-fouling performance, avoiding rainwater, dust and other attachments affecting imaging quality.
• Fixed aperture optimization: Use fixed aperture design with reasonable F value (F1.6~F2.5) to balance light intake and imaging clarity, and adapt to the dynamic light change of vehicle driving.

3. Lens Characteristics of Different ADAS Camera Installation Positions

ADAS cameras are installed in different positions of the vehicle (front view, surround view, side view, rear view) with different functional positioning, and the matching automotive grade lenses have distinct characteristic requirements. The following is the matching relationship between installation positions and lens characteristics, and TOWIN’s lens adaptation suggestions:

Key characteristics of lenses for different positions:

• Front view lens: Focus on high resolution and low distortion, and the long focal length design realizes long-distance accurate recognition (up to 350m for high-performance solutions), matching ADAS functions such as AEB (Automatic Emergency Braking) and ACC (Adaptive Cruise Control).
• Surround view lens: Take ultra-wide field of view as the core, the field of view angle is generally ≥90°, even up to 134°, to realize 360° panoramic stitching without blind spots, and the compact structure is suitable for embedded installation of the vehicle body.
• Side/rear view lens: Emphasize environmental adaptability and compactness, with high waterproof grade and wide temperature working range, adapting to the harsh installation environment of the vehicle side and rear.

4. Automotive Grade Material Selection Standard

The material selection of ADAS automotive grade lenses follows the strict automotive industry standards, and all components (lens glass, structural parts, coating materials) must meet the requirements of high temperature resistance, low temperature resistance, anti-aging, and mechanical shock resistance. TOWIN’s material selection standards for automotive grade lenses are as follows:

4.1 Lens Glass Material

• Adopt high-quality optical glass with low thermal expansion coefficient, which can avoid lens deformation and affect optical performance under extreme temperature changes (-40°C~+85°C).
• The glass material has high transmittance, ensuring the light intake of the lens and realizing clear imaging in low-light environments.

4.2 Structural Parts Material

• Use high-strength engineering plastics or metal materials with automotive grade certification, which have the characteristics of anti-corrosion, anti-vibration and anti-aging, and adapt to the long-term vibration and complex working environment of the vehicle.
• The structural design is optimized for sealing to match the high waterproof and dustproof grade (IP67/IP69K) requirements.

4.3 Coating and Filter Material

• Hydrophobic membrane coating uses high wear-resistant nanomaterial, which has long-term water repellency and anti-fouling performance, and is not easy to fall off under the washing of rainwater and the friction of dust.
• IR filter and visible light + 940nm pass filter adopt high transmittance optical film material, with stable spectral performance and no attenuation under long-term use.

5. Key Parameter Analysis of ADAS Automotive Grade Lenses

The performance of ADAS automotive grade lenses is directly determined by core parameters, and it is the key to selecting lenses to match the parameters with the ADAS camera function requirements. The following is the detailed analysis of core parameters and the standard range of TOWIN’s products:

5.1 Core Parameter Interpretation Table

5.2 Key Parameter Selection Principles

• Field of view & focal length: Surround view cameras choose short focal length (1.3mm~5mm) and ultra-wide field of view (≥90°); front view cameras choose medium and long focal length (4.4mm~16mm) and medium field of view (35°~101°) for long-distance recognition.
• Distortion: Front view cameras with high recognition accuracy requirements choose low distortion lenses (≤-2%~≤-14.5%); ultra-wide angle surround view cameras can appropriately tolerate higher distortion (≤-25%) on the premise of ensuring panoramic stitching.
• Waterproof grade & working temperature: Choose IP69K and -40°C~+85°C wide temperature lenses for outdoor installation positions (side view, rear view, surround view); front view cameras can choose IP67 lenses according to the installation environment.

6. TOWIN Automotive Grade Lenses for ADAS Cameras

TOWIN has launched a full range of automotive grade lens products for ADAS camera scenarios, covering multiple specifications such as ultra-wide angle, wide angle, low distortion, high resolution, and high waterproof grade. All products are designed in accordance with automotive grade standards, with excellent optical performance and environmental adaptability. The following is the detailed parameter introduction of TOWIN’s core ADAS automotive grade lenses:

6.1 TOWIN Core ADAS Automotive Grade Lens Parameter Table

6.2 Core Advantages of TOWIN’s Products

• Full scenario coverage: Cover ultra-wide angle for surround view, low distortion for front view, and medium wide angle for side view, meeting the lens needs of all ADAS camera installation positions.
• High environmental adaptability: IP67/IP69K waterproof and dustproof, -40°C~+85°C extreme temperature adaptation, adapting to the global complex climate and vehicle working environment.
• High optical performance: 2MP~8.3MP multi-resolution coverage, F1.6~F2.0 large aperture design, built-in IR filter/visible+940nm pass filter, realizing all-weather clear imaging.
• Automotive grade reliability: Strict material selection and structural design, complying with automotive electronic component reliability standards, and long-term stable work under vehicle vibration and aging environment.
• Strong compatibility: Multiple mount specifications (φ11.4mm, M12x0.5, M16x0.5) are compatible with mainstream ADAS camera modules in the market.

7. Application Scenarios of TOWIN ADAS Automotive Grade Lenses

TOWIN’s automotive grade lenses are widely used in various ADAS camera scenarios of passenger cars, commercial vehicles, new energy vehicles and other models, and are the core optical components of intelligent driving systems. The main application scenarios are:

• 360° Surround View System: Match S01314012225F69 (134° ultra-wide angle) and S05012607016F69 (90° low distortion) to realize 360° panoramic blind spot-free imaging and support low-speed automatic parking and blind spot monitoring.
• Front View ADAS System: Match D04412307720F940 (8.3MP high resolution) and S16011703016F67 (8MP ultra low distortion) to realize long-distance obstacle recognition, traffic light identification, lane keeping, AEB and ACC functions.
• Side View Lane Change Assistance System: Match S05512506318D9 (5MP IP69K waterproof) and S05012607016F69 (low distortion) to realize side obstacle recognition and lane change safety reminder.
• Rear View Reverse Assistance System: Match S01314012225F69 (ultra-wide angle compact) to realize reverse parking obstacle recognition and rear view real-time imaging.
• DMS (Driver Monitoring System): On the basis of ADAS lenses, customize the miniaturized lens design to realize driver state monitoring (fatigue driving, distracted driving).

FAQs

Q1: What is the difference between ADAS automotive‑grade lenses and ordinary surveillance/industrial lenses?

A: Automotive‑grade lenses meet strict vehicle standards:

Wide operating temperature: -40°C to +85°C

High waterproof/dustproof: IP67/IP69K

Better vibration resistance & anti-aging

Optimized for ADAS perception

Ordinary lenses only work in 0°C–50°C, lower waterproof, and cannot withstand long-term vehicle environments.

Q2: How to choose an ADAS lens for different camera positions?

A:

• Surround view: ultra-wide angle (>90°), short focal length (1.3–5mm), IP69K
• Front view: high resolution (≥8MP), low distortion, medium-long focal length (4.4–16mm)
• Side/rear view: compact, IP69K, medium wide angle

Q3: Does TOWIN provide custom ADAS lens development?

A: Yes. We offer full customization including focal length, FOV, resolution, mount, and waterproof rating, all to automotive-grade standards.

Q4: What are the benefits of TOWIN’s hydrophobic coating?

A: It repels water, dust, and oil. Rain slides off quickly, keeping the lens clean and ensuring stable imaging in bad weather.

Q5: Do TOWIN ADAS lenses support night & low-light imaging?

A: Yes. They use IR/940nm pass filters and large apertures (F1.6–F2.0) for clear night vision and low-light performance.

IP67 Waterproof Automotive Lens

Conclusion

ADAS is the inevitable trend of automotive intelligentization, and the automotive grade lens as the core optical component of ADAS cameras is the foundation of realizing high-precision environmental perception. TOWIN, as a professional optical lens supplier, has been deeply engaged in the field of automotive grade lenses for a long time, with mature R&D and manufacturing capabilities in optical design, material selection, and structural optimization.

TOWIN’s full range of ADAS automotive grade lenses cover multiple specifications such as ultra-wide angle, low distortion, high resolution, and high waterproof grade, meeting the lens needs of all ADAS camera installation positions (front view, surround view, side view, rear view). All products comply with automotive grade standards, with excellent environmental adaptability and optical performance, and can provide stable and reliable optical support for the intelligent driving system of various models.

Whether it is standard product selection or customized development, TOWIN can provide one-stop optical lens solutions for ADAS camera manufacturers, and escort the development of automotive intelligentization with professional technology and high-quality products.