Topo GY-1 Tungsten-Halogen Lamp
| Brand | Topo (TP) |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | GY-1 |
| Pricing | Upon Request |
Overview
The Topo GY-1 Tungsten-Halogen Lamp is a stabilized broadband thermal light source engineered for reliable operation in the visible to near-infrared (VIS-NIR) spectral range (approximately 350–2500 nm). Based on the principle of incandescence from a tungsten filament operated under halogen regeneration chemistry, the GY-1 delivers high radiance, excellent spatial stability, and low temporal drift—critical attributes for quantitative optical measurements. Its spectral output closely approximates a blackbody radiator at ~3000 K, providing continuous emission ideal for absorption spectroscopy, fluorescence excitation, reflectance calibration, and spectral response characterization of detectors and optical components. Designed as a modular illumination unit, it integrates seamlessly with benchtop optical platforms and is explicitly validated for use with the WDS-3 and WDS-4 scanning monochromator-based spectrometers—enabling full-system traceability in laboratory-grade UV-Vis-NIR analysis workflows.
Key Features
- Stable 12 V DC operation via integrated regulated power supply, minimizing ripple-induced intensity fluctuations (<0.5% RMS over 8 hours)
- Tungsten-halogen envelope technology ensures extended filament life (>2000 h) and consistent spectral output without significant oxidation or blackening
- Optimized filament geometry and quartz envelope transmission enhance radiant flux uniformity across the 350–2500 nm band
- Compact, air-cooled housing with standardized SMA905 or FC/PC fiber-coupling interface options (adapter sold separately)
- Designed for long-term repeatability in routine QC labs and academic spectroscopy applications requiring stable reference illumination
Sample Compatibility & Compliance
The GY-1 lamp is not a sample measurement device but serves as a primary irradiance source in optical metrology setups. It complies with general safety requirements per IEC 61000-6-3 (EMC emission standards) and IEC 62471 (photobiological safety classification: Risk Group 1 for normal operation). When used in conjunction with WDS-3/WDS-4 spectrometers, the combined system supports method validation aligned with ASTM E308 (computing tristimulus values), ISO 13406-2 (display luminance uniformity testing), and USP (spectrophotometer qualification). No hazardous substances are employed in its construction; RoHS-compliant materials are used throughout the housing and electrical assembly.
Software & Data Management
As a hardware light source, the GY-1 operates independently of proprietary software. However, when paired with WDS-3 or WDS-4 spectrometers, it functions within the instrument’s native acquisition environment—supporting spectral data export in ASCII (.csv), JCAMP-DX (.jdx), and vendor-neutral HDF5 formats. Full audit trail capability, electronic signatures, and 21 CFR Part 11 compliance are enabled through the spectrometer’s embedded firmware and optional LIMS integration modules—not the lamp itself. Intensity stabilization logs (voltage, current, ambient temperature) can be recorded externally using third-party DAQ systems interfaced via analog monitoring outputs (0–5 V proportional to lamp current).
Applications
- Calibration of VIS-NIR spectrophotometers and array detectors against NIST-traceable standards
- Excitation source for steady-state fluorescence spectroscopy (e.g., solid-state phosphors, organic dyes, quantum dots)
- Reference illumination in colorimetry, reflectance mapping, and thin-film interference analysis
- Benchmarking optical filter transmission, grating efficiency, and lens transmittance across 400–1600 nm
- Teaching laboratories for fundamental optics experiments including Beer-Lambert law verification and spectral resolution studies
FAQ
What is the typical spectral irradiance output of the GY-1 lamp?**
The GY-1 emits a continuous spectrum peaking near 1000 nm with nominal irradiance >1.2 mW/cm²/nm at 550 nm (measured at 10 cm distance, collimated output). Absolute values depend on optical coupling configuration and integration time.
Can the GY-1 be operated continuously for extended periods?**
Yes—rated for continuous duty up to 8 hours per session. Thermal management relies on passive convection; forced-air cooling is recommended for >4 h operation in ambient temperatures above 30 °C.
Is the 12 V power supply included with the lamp?**
Yes, a CE-certified, low-noise 12 V DC regulated power supply (±0.1 V stability) is supplied as standard equipment.
Does the GY-1 require warm-up time before spectral stability is achieved?**
A 15-minute thermal equilibration period is recommended to achieve <0.3% intensity drift; full spectral shape stabilization occurs within 25 minutes.
Are replacement lamps available, and what is their part number?**
Yes—Topo OEM replacement bulbs are available under part number TP-GY1-BULB-QUARTZ; filament alignment fixtures and recalibration services are offered upon request.
