Garnt Optics | High-Precision Optical Components Manufacturer

About Garnt Optics

Nanjing Garnt Opto-electronics Co., Ltd is a leading manufacturer of precision optical components with over two decades of industry expertise. We specialize in optical cold-processing aspherical lenses and optical molding lenses—core technologies that define our competitive edge.

Our product range includes spherical and aspherical lenses, prisms, filters, windows, rods, and lightguides. We work with advanced materials such as Quartz, Sapphire, Silicon, Calcium Fluoride (CaF2), and Zinc Selenide (ZnSe), serving applications in medical equipment, agriculture, probes, and optical assemblies.

With in-house production, coating capabilities, and metrology systems, we ensure quality at every stage—from design to delivery.

Our Products

Engineered for precision, durability, and performance across industries

Aspherical Lens

Reduced spherical aberration for superior imaging. Ideal for laser focusing, medical devices, and high-resolution optics.

Band Pass Filter

Transmits specific wavelength bands while blocking others. Used in spectroscopy, fluorescence imaging, and sensing.

Short Wave Pass Filter

Allows transmission of short-wavelength light (UV/visible), blocking longer IR wavelengths. Critical in UV detection systems.

Long Wave Pass Filter

Transmits long-wavelength IR light while blocking UV and visible. Used in thermal imaging and environmental monitoring.

Plano-Convex Lens

Positive focal length lenses ideal for collimating or focusing light in industrial and scientific instruments.

Bi-Concave Lens

Negative focal length lenses used for beam expansion, image reduction, and optical system spacing.

Optical Prisms

Precision right-angle, penta, and wedge prisms for beam steering, reflection, and dispersion in optical systems.

Optical Windows

Plano, step, and wedge windows in various substrates for protection, sealing, and transmission in harsh environments.

Cemented Lenses

Doublet and triplet lenses cemented to correct chromatic aberration. Ideal for high-performance imaging systems.

Lightguides

Custom light pipes and guides for uniform illumination in medical, display, and industrial applications.

Balls Lens

Spherical lenses used in fiber coupling, endoscopy, and miniature optical systems requiring 360° symmetry.

Narrow Bandpass Filter

High selectivity filters transmitting a narrow wavelength range. Used in Raman spectroscopy and telecom.

Why Choose Garnt Optics?

Engineered excellence backed by decades of experience and customer-first values

Fast Response

Inquiry response within 1 hour. Rapid prototyping and fast turnaround times for urgent projects.

In-House Production

Full control over manufacturing and coating processes ensures consistency, quality, and cost efficiency.

Quality Assurance

Every process is checked and confirmed. In-house optical metrology and double-check before packaging.

After-Sale Service

Unconditional cooperation with customers. Urgent issue resolution and long-term relationship building.

Latest News

Short Wave Pass Filter (SWPF)

A short wave pass filter is an optical filtering device whose core function is to allow short-wavelength light (high-frequency light) to pass through while blocking or reflecting long-wavelength light. This selective transmission characteristic makes SWPFs essential in applications such as UV detection, fluorescence analysis, and solar-blind sensing.

Published: January 2025

Frequently Asked Questions

What materials do you work with?

We specialize in Quartz, Sapphire, Silicon, Calcium Fluoride (CaF2), and Zinc Selenide (ZnSe), among others.

Do you offer custom optical design?

Yes, we provide full custom optical design, prototyping, and volume production services tailored to your specifications.

What is your lead time for standard lenses?

Typical lead time is 2–4 weeks depending on complexity and order volume. Urgent orders can be expedited.

Can you coat optical components?

Yes, we have in-house coating capabilities including AR, HR, and filter coatings on various substrates.

What industries do you serve?

We serve medical equipment, agriculture, defense, industrial automation, telecommunications, and scientific research sectors.

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