Industrial Camera and Lens

ZnS Thermal Imaging Lens

Model：ZnS
Product description: ZnS thermal imaging lens for automotive night vision ADAS applications, featuring low thermal sensitivity, high mechanical strength, and DLC coating without germanium window.
INQUIRY

ZnS Thermal Imaging Lens — For NV (Night Vision) ADAS Automotive Applications

The ZnS thermal imaging lens is designed for NV (night vision) ADAS automotive applications.It offers low thermal sensitivity and high mechanical strength.
By adopting DLC coating technology, the lens enables a germanium-free protective window structure and is suitable for automotive night vision ADAS systems operating in the 8–12 μm infrared band

ZnS热成像镜头

Industry Challenges

· NV ADAS systems require high thermal stability from infrared lenses

· Conventional germanium lenses involve high cost and limited mechanical strength

· Complex automotive environments impose stringent requirements on optical and structural reliability

Product Features

· Designed to meet the requirements of automotive night vision ADAS applications

· Manufactured using a specialized forming process

· Rare-metal-free design: zinc sulfide (ZnS) lens

· Low thermal sensitivity combined with high mechanical strength

· DLC coating technology enabling a germanium-free protective window structure

Optical and Mechanical Performance

Category		ZnS
Optical	Transmittance (AR) @ 3 mmt	0.9
	Dispersion coefficient (8–12 μm)	22.8
	Refractive index @ 10 μm	2.200
Thermal	dn/dt@10μm	4.1
Thermal	Coefficient of thermal expansion α (10⁻⁶)	6.7
Mechanical	Knoop hardness (kg/mm²)	230
	Flexural strength (MPa)	98
	Young’s modulus (GPa)	86

· ZnS Forming Technology

ZnS成型技术

· Lens Transmittance

镜头透射率

Lens Specifications

Model	f(mm)	F-number	Pixel size	Transmittance	HFOV(°)	Mount
V3511	35.0	1.1	13.6	0.74	17.7(A)/8.9(B)	M34 ×0.5
V1810	18.8	1.0	13.6	0.79	32.9(A)/16.3(B)	M34 ×0.5
V1311	13.0	1.1	13.6	0.78	50.3(A )/24.3(B)	M34 ×0.5