Overview of ZnSe Asphercial Lens

Zinc selenide (ZnSe) is a commonly used optical material for the infrared spectrum, with a transmission range of 600 nm to 16 μm. It features low absorption and high thermal shock resistance, making it ideal for thermal imaging systems and certain visible-light optical applications. ZnSe serves as a substrate for various optical components, such as lenses and windows.

Aspheric lenses effectively correct spherical aberration due to their aberration-free surface design. They are widely used for collimating fiber-optic output beams and find applications in barcode scanning, laser beam collimation, and optical imaging. Designed as single-element optics, aspheric lenses significantly reduce the number of lenses required in multi-lens optical systems.

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Specifications of ZnSe Aspherical Lens

Parameter	Specification
Shape of Back Surface	Plano
Surface Roughness (Å)	<50 RMS
Substrate	ZnSe
Aspheric Surface Error (RMS @ 632.8nm)	λ/2
Surface Quality	40-20
Conjugate Distance	Infinite
Power (P-V) @ 632.8nm	λ/10
Power (P-V) @ 10.6μm	λ/10
Bevel	Protective bevel as needed

Applications of ZnSe Aspherical Lens

ZnSe aspheric lenses are extensively utilized across multiple industries, including the following key areas:

Optical Instruments: In telescopes, microscopes, and optical measurement devices, ZnSe aspheric lenses enhance imaging quality and measurement accuracy. By minimizing spherical aberration, coma, astigmatism, and distortion, they deliver superior optical performance and sharper imaging.

Laser Systems: For laser beam shaping, image transmission, and laser marking applications, ZnSe aspheric lenses adjust focal length, focusing performance, and spot shape to meet diverse requirements. Their exceptional flexibility makes them invaluable in high-end cameras, telescopes, and medical equipment.

Automotive Optics: In automotive headlights and onboard camera systems, ZnSe aspheric lenses improve illumination and image quality. By reducing the number of optical elements and overall weight, they simplify optical designs while boosting system reliability and performance.

Medical & Ophthalmic Applications: Aspheric lenses are also widely used in vision correction devices such as eyeglasses and contact lenses. They effectively address refractive errors in the human eye, providing clearer and more comfortable vision.