Spectrolight

What Spectrolight does

Spectrolight Inc. is a privately held South Korean optical technology company, headquartered at 7-16 Naseongnam-ro, Sejong-si, that designs and manufactures photonic instruments for spectroscopy and spectral imaging. Its core offering is the Flexible Wavelength Selector (FWS) family of tunable bandpass filters built on a proprietary TwinFilm™ technology, which combines grating-monochromator wavelength selection with circular-aperture bandpass filter imaging; the resulting products cover center wavelengths from 255–1700 nm with tunable bandwidths of 2–20 nm FWHM, >75% transmission efficiency, and out-of-band blocking of OD 5–10. The catalog extends to light sources (Energetiq LDLS covering 190–2500 nm, SL-Pico supercontinuum lasers, tunable light sources, tungsten-halogen and plasma lamps), hyperspectral imaging systems and cameras, and ancillary optical components (spectrometers, light aligners, optical fibers, mounting bases).

The company sells direct to end users worldwide via its own e-commerce storefront, shipping from South Korea; pricing is one-time hardware purchase, ranging from roughly $1,400–$1,500 for a CenterLine20 model, $3,200–$4,600 for CenterLine10 configurations, and additional accessories from $65–$180, with custom (CWS) units quote-based and shipped within 72 hours. Target buyers are research institutions and university laboratories (physics, optics, chemistry, quantum), life sciences and biotechnology (fluorescence imaging, microscopy, drug discovery, optogenetics), materials science labs, industrial metrology and quality control teams, and medical/environmental monitoring applications — a horizontal segmentation driven primarily by use case rather than by a single named vertical. There are no disclosed funding rounds, no reported revenue, no headcount data beyond an 11–50 employee band, no institutional investors, and a co-located affiliation with iiSM Inc. at the same address whose relationship is unconfirmed.

Name

Spectrolight

Legal name

SPECTROLIGHT Inc.

Website

https://spectrolightinc.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

Spectrolight Inc. designs and manufactures TwinFilm™-based tunable bandpass filters and broadband light sources for scientific, life sciences, and industrial photonics applications, selling globally via direct e-commerce from Sejong-si, South Korea.

Ownership category

akta.pro rank

Product category

Optical Spectroscopy Instrumentation

NAICS

Electric Lighting Equipment Manufacturing (33513), Electric Lamp Bulb and Other Lighting Equipment Manufacturing (335139)

SIC

Optical Instruments & Lenses (3827), Laboratory Analytical Instruments (3826)

akta.pro primary industry

Optoelectronic Components (LEDs, photodiodes, optocouplers, optical sensors) (IMAGAJAF)

akta.pro secondary industry

Optoelectronic Emitters (LED/Laser/VCSEL) (HDAHALAL)

Keywords

• Tunable bandpass filters
• Optical spectroscopy instruments
• Hyperspectral imaging systems
• Supercontinuum lasers
• Wavelength selection

Headquarters

HQ city

Irvine

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Operations, Marketing or Sales

Revenue model

1. Optical Hardware Sales: Sale of optical instruments including tunable bandpass filters, light sources, hyperspectral imaging systems, and optical components. Products sold as one-time purchases with various models and configurations.
2. Custom Product Manufacturing: Custom Wavelength Selector (CWS) products manufactured to customer specifications for specific wavelength and bandwidth requirements

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Spectrolight designs, manufactures, and sells optical instruments for spectroscopy and spectral imaging, anchored by its TwinFilm™-based Flexible Wavelength Selector (FWS) tunable bandpass filter line spanning 255-1700 nm. The offering is complemented by broadband light sources (LDLS laser-driven sources, SL-Pico supercontinuum lasers, tunable light sources, plasma, tungsten-halogen), hyperspectral imaging systems, and optical components (spectrometers, light aligners, optical fibers, mounting accessories).

Product overview

Spectrolight is an optical technology company that manufactures tunable bandpass filters and light sources for spectroscopy and spectral imaging applications. The core product line is the Flexible Wavelength Selector (FWS) series, which includes manually tunable filters (Manual, CenterLine models), software-controlled filters (Mono, Poly-RED, Poly-BLUE), and custom fixed filters (CWS). These are complemented by light sources including tunable light sources, SL-Pico supercontinuum lasers, and Energetiq LDLS laser-driven light sources. The portfolio also includes hyperspectral imaging systems and optical components (spectrometers, light aligners, optical fibers). The products utilize TwinFilm technology and are used in scientific research, life sciences, materials science, industrial metrology, and medical diagnostics. The company is headquartered in Sejong-si, South Korea.

Differentiator

Problem solved

Functional benefit

Brands

• Flexible Wavelength Selector (FWS): A tunable bandpass filter product line utilizing TwinFilm technology for wavelength filtering
• FWS-Poly
• FWS-Mono
• FWS-Manual
• CWS (Custom Wavelength Selector)
• CenterLine

Products and services

• FWS-Mono (Flexible Wavelength Selector Mono) A software-controlled tunable bandpass filter with center wavelength tuning across 255-1700 nm and adjustable bandwidth of 3-15 nm FWHM. Controlled via USB 2.0 with custom wavelength scanning, setting, and stepping. Designed for system integrators and researchers requiring automated spectral control.
• FWS-Poly-RED (Flexible Wavelength Selector Poly-RED) A software-controlled tunable bandpass filter with tunable center wavelength and adjustable FWHM of 2-15 nm across a broad spectral range. USB-controlled for integration with hyperspectral imaging and spectroscopy systems requiring flexible bandwidth control.
• FWS-Poly-BLUE (Flexible Wavelength Selector Poly-BLUE) A software-controlled tunable bandpass filter with fixed bandwidth options of 10 or 20 nm FWHM across the 430-1700 nm range. Designed for hyperspectral imaging applications requiring preset-bandwidth flexibility.
• FWS-CenterLine10 (Flexible Wavelength Selector CenterLine 10 nm) A manually tunable bandpass filter with a fixed bandwidth of approximately 10 nm and center wavelength adjustable across 255-1700 nm. Provides a low-cost entry to the FWS family for fixed-bandwidth spectroscopy applications.
• FWS-CenterLine20 (Flexible Wavelength Selector CenterLine 20 nm) A manually tunable bandpass filter with fixed bandwidth of approximately 20 nm, 5mm aperture, and center wavelength adjustable across 255-1700 nm. Targeted at fixed-bandwidth optical experiments requiring broader spectral pass-through.
• FWS-Basic / High Resolution (Manual Tunable Bandpass Filters) Manually tunable bandpass filters built on TwinFilm™ technology with a broadband spectral range of 255-1700 nm, distortion-free beam shape, and >75% transmission efficiency. Available in Basic, High Resolution, and CenterLine variants with various aperture sizes for laboratory optical experiments.
• CWS (Custom Wavelength Selector) A specialized optical tunable bandpass filter where users specify exact center wavelength and bandwidth; the company manufactures and ships the fixed custom filter within 72 hours. Designed for specialized research applications requiring non-standard wavelength specifications.
• LDLS (Laser-Driven Light Sources) Energetiq-manufactured laser-driven light sources providing a broad spectral range from 190 nm to 2500 nm for efficient deep UV to NIR illumination. Used for advanced spectroscopy, metrology, and imaging applications requiring intense, stable broadband output.
• SL-Pico Supercontinuum Lasers Picosecond-pulsed supercontinuum lasers that generate broadband light output for spectroscopy, imaging, and sensing applications. Designed for research laboratories requiring pulsed broadband illumination.
• Tunable Light Sources Light sources offering versatile and precise wavelength tuning with powerful output, excellent stability, and flexibility. Targeted at spectroscopy applications requiring adjustable wavelength illumination.
• Hyperspectral Imaging Systems Hyperspectral imaging systems and cameras that combine FWS tunable filters with imaging optics for spectral imaging applications, including hyperspectral imaging solutions and hyperspectral imaging cameras.
• Optical Components (Spectrometers, Light Aligners, Optical Fibers, Ruler Posts, Optical Hybrid Boards) A range of optical components including spectrometers, light aligners, ruler posts, optical hybrid boards, and optical fibers. Used to assemble complete optical setups for spectroscopy, imaging, and beam steering applications.

Quantifiable outcome

• Spectral range coverage from 255-1700 nm with tunable bandwidth (2-20nm depending on model)
• +2 more outcomes

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• iiSM Inc.unclearOthersiiSM Inc. is listed alongside Spectrolight Inc. at the same address in Sejong-si, South Korea. The nature of the relationship is unclear - could be a subsidiary, parent company, or co-located entity.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Thorlabs: Thorlabs is the dominant direct peer — a broad catalog photonics vendor offering tunable filters, light sources, spectrometers, and hyperspectral components to research and OEM customers worldwide, overlapping directly with Spectrolight's FWS, LDLS, and optical-components lines.
• Edmund Optics: Edmund Optics sells optical filters, light sources, spectrometers, and hyperspectral components to the same research, life-sciences, and industrial-buyer base as Spectrolight, with overlapping product categories and an established e-commerce motion.
• Chroma Technology: Chroma manufactures precision optical filters for microscopy, biomedical, and spectroscopy applications, competing head-to-head with Spectrolight's FWS line in research and life-sciences accounts.
• Semrock (IDEX Health & Science): Semrock specializes in optical bandpass filters for fluorescence microscopy and life-sciences instrumentation — the closest direct overlap with Spectrolight's FWS tunable-filter technology and a benchmark for filter-only specialists.
• Delta Optical Thin Film: Delta Optical Thin Film is a European specialist in custom optical filters and coatings, directly comparable to Spectrolight's CWS custom-filter offering and tunable filter technology.

Emerging players

• Wasatch Photonics: Wasatch Photonics is a smaller specialist in volume-phase holographic gratings, spectrometers, and OCT components, with a comparable niche-photonics, research-and-OEM go-to-market profile.

Broad incumbents

• Coherent (II-VI/Coherent Corp.): Coherent supplies lasers, optics, and photonics subsystems across research, life-sciences, and industrial markets — adjacent to Spectrolight's SL-Pico supercontinuum lasers and light-source portfolio, though at a far broader scale.
• Hamamatsu Photonics: Hamamatsu owns Energetiq (the LDLS technology Spectrolight resells/integrates) and supplies a wide range of photonic devices including light sources and detectors, positioning it as both a supplier and adjacent competitor.
• Newport / MKS Instruments: MKS/Newport offers a broad photonics portfolio (light sources, spectrometers, optomechanics) overlapping with Spectrolight's tunable light sources, LDLS, and optical-component categories, but at much greater scale and with broader system-level offerings.
• HORIBA Scientific: HORIBA manufactures spectrometers, light sources, and detection systems for research and industrial spectroscopy — overlapping with Spectrolight's spectroscopy and hyperspectral imaging offerings at the system level.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/SpectrolightInc
• Facebookfacebook.com/SpectrolightInc
• LinkedInlinkedin.com/company/spectrolight-inc

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Spectrolight