Optolong optics Ltd

Optolong optics Ltd Optolong Optics Co.,ltd is a manufacturer of astronomy filters, fluorescence filters since 1999. We

Thank you to everyone who stopped by to speak with the Optolong team at CIOE. At the exhibition, we highlighted our core...
15/09/2026

Thank you to everyone who stopped by to speak with the Optolong team at CIOE.

At the exhibition, we highlighted our core products, including life science fluorescence filters, dedicated FISH (fluorescence in situ hybridization) filter sets, dichroic mirrors, narrowband filters, and optical coating components, and demonstrated our customization capabilities for full-spectrum coatings spanning ultraviolet-visible-near-infrared (250-2000nm). Our products precisely match application needs across multiple fields, including medical testing, scientific research imaging, machine vision, and astronomical observation.

We are at 话题标签 in Shenzhen China!🕹️ Visit our booth to explore our advanced optical coating filters and fluorescence fi...
11/09/2026

We are at 话题标签 in Shenzhen China!

🕹️ Visit our booth to explore our advanced optical coating filters and fluorescence filters.

🔬 Looking for high-precision optical coating filters?
Come and take a look at our latest high-end precision optical coating filters and talk to us about your research, experimental setup, and possibilities for fluorescence imaging applications.

🤖 You can also learn more about our fluorescence filter solutions, designed for a wide range of imaging technologies — including medical instruments, fluorescence, imaging systems, and hyperspectral imaging — for phenotyping and automated imaging of plant roots, shoots, and algae.

📍👉 Come visit our booth, see our filters, and talk to us about your research!

We offer wide spectral coverage (UV to LWIR) and custom engineering to solve your most complex light-management problems...
29/08/2026

We offer wide spectral coverage (UV to LWIR) and custom engineering to solve your most complex light-management problems.
✅ Biotech: Fluorescence and imaging filters.
✅ Autonomous Mobility: IR and bandpass filters for LiDAR
✅ Aerospace: Durable, high-performance coatings for harsh environments
✅ Industrial: Laser filters and machine vision components

We understand that "one size fits all" rarely fits perfectly. That’s why we specialize in custom optical coatings tailored to your exact spectral and durability needs, from initial R&D to volume production.

From fluorescence microscopy to flow cytometry, optical coating filters are the unsung heroes of life science discovery....
22/08/2026

From fluorescence microscopy to flow cytometry, optical coating filters are the unsung heroes of life science discovery. Precision-engineered with multilayer dielectric stacks, these filters deliver exceptional transmission, steep edge slopes, and deep rejection—enabling researchers to isolate faint signals from complex biological samples. Whether for PCR, DNA sequencing, or cell sorting, our custom thin-film coatings ensure reliability, reproducibility, and outstanding durability. Because in life sciences, every photon counts. Trust our advanced filter technology to illuminate the path to breakthrough diagnostics and therapeutics—where clarity meets critical insight, and innovation accelerates health solutions worldwide.

Optical Coating Filters: Pioneering Life Science Innovation.


Optolong Optics: 25+ Years of Precision, Innovation, and Global TrustSince 1999, Optolong Optics Co., Ltd. has been at t...
15/08/2026

Optolong Optics: 25+ Years of Precision, Innovation, and Global Trust
Since 1999, Optolong Optics Co., Ltd. has been at the forefront of advanced optical coating technology. From our humble beginnings to becoming a top-tier supplier serving 5000+ global customers, we have never stopped pushing the boundaries of what’s possible in thin-film filtration and precision optics.

What sets us apart? It starts with our facility. We proudly own and operate over 3,000 m² of factory space, designed entirely around efficiency, quality control, and scalable production. Our manufacturing backbone is reinforced by 5+ state-of-the-art high-end precision coating machines imported from Japan and Germany, ensuring that every filter meets the most demanding international standards.
But equipment is only half the story. Precision begins long before coating—it begins with cleaning. That’s why we’ve invested in a 12-channel ultrasonic cleaning system, guaranteeing substrate perfection before any deposition process begins. To verify every micron of performance, we rely on 3 world-class inspection instruments—each one uniquely available only in our facility, giving us unmatched diagnostic capability.

Yet, technology is only as powerful as the people behind it. At Optolong, our team brings over 20 years of hands-on experience per technician, translating into consistency, repeatability, and rapid problem-solving on the production floor. This deep expertise is paired with a dedicated 24/7 expert service team—ready to support customers across time zones, from prototype to mass production.
We don’t just manufacture optics; we design them. With a strong in-house R&D capability, we collaborate directly with clients to develop custom solutions that solve real-world optical challenges—whether in astronomy, biomedical, industrial laser, or defense.

From our own factory floors to your end products, Optolong is your reliable partner for precision optics. Built in 1999. Proven over decades. Trusted around the world.

Optolong Optics – Light, Engineered.
📧 Contact us today to discuss your next project.
🌐 www.optolongfilter.com

FISH enables the detection of chromosomal abnormalities at the single-cell level, establishing it as a cornerstone techn...
01/08/2026

FISH enables the detection of chromosomal abnormalities at the single-cell level, establishing it as a cornerstone technology in both cancer diagnostics and hereditary genetic testing.

Fluorescence detected in one channel may sometimes originate from another fluorophore.This effect, known as spectral ble...
01/08/2026

Fluorescence detected in one channel may sometimes originate from another fluorophore.
This effect, known as spectral bleed-through, occurs when excitation or emission spectra overlap. It can create false signal proximity or reduce confidence in multi-color FISH interpretation.
Careful filter selection, controlled exposure, and channel-specific acquisition help maintain signal separation and improve image clarity.

Our FITC/TRITC dual-bandpass fluorescence filter delivers what truly matters in fluorescence imaging: high-contrast, low...
28/07/2026

Our FITC/TRITC dual-bandpass fluorescence filter delivers what truly matters in fluorescence imaging: high-contrast, low-background, and color-accurate dual-channel images. In recent test shots, the filter simultaneously excited and captured both green (FITC) and red (TRITC) signals with exceptional balance—no channel bleed, no false positives, and minimal autofluorescence interference.

What makes the difference? Advanced hard‑coating technology and ultra-precise edge-steepness ensure that each emission band is sharply defined, while >90% transmission at peak wavelengths maximizes photon collection. The result? Crisp, bright cellular structures with deep, clean backgrounds—even in multicolor labeling experiments where crosstalk is normally unavoidable.

Backed by 26 years of in-house manufacturing, every filter undergoes rigorous quality control, from substrate flatness to environmental durability. Our dual-band filters are not just optical components; they are confidence tools for consistent, publishable data, run after run.

Upgrade your microscopy with filters that combine precision, durability, and affordability—and see your samples as they truly are.

/TRITC

Microscope Filter Set Check： We recently tested two new fluorescence filter sets on our Nikon microscope, and the result...
11/07/2026

Microscope Filter Set Check： We recently tested two new fluorescence filter sets on our Nikon microscope, and the results are impressive!

FITC Set (for FITC/GFP/Alexa 488): Very good signal strength. A minor note: users should be mindful of potential bleed-through in complex multi-color experiments.
Texas Red Set (for Texas Red/mCherry/Alexa 594): Outstanding specificity and brightness.
Overall, both sets of stable hard coatings, high contrast image optimized Optical fabrication for brilliant imaging, extremely sharp transitions from rejection to transition regions, lowest auto-fluorescence, Excellent signal-to-noise ratio, Superior field life, and specific signals for their target fluorophores. Sample images are below—what do you think?

We evaluated DAPI filter performance using the Nikon ECLIPSE Ni-L microscope paired with the DS10 camera, the system del...
11/07/2026

We evaluated DAPI filter performance using the Nikon ECLIPSE Ni-L microscope paired with the DS10 camera, the system delivered exceptional nuclear staining visualization.
Nikon's noise termination mechanism effectively eliminated stray light, producing high-contrast, bright images with a superior signal-to-noise ratio.
The DS10's full-frame sensor, combined with the microscope's 25mm field of view, enabled efficient capture of large samples in fluorescence mode. This setup proves ideal for reliable, high-quality nuclear staining documentation.

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科普路
Kunming
650000

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+18388158376

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