GY-1A Toppo Adjustable-Intensity Tungsten-Halogen Lamp
| Brand | Toppo (TP) |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | GY-1A |
| Pricing | Upon Request |
Overview
The GY-1A Toppo Adjustable-Intensity Tungsten-Halogen Lamp is a precision-engineered broadband visible light source designed for educational and research-grade optical experimentation. It utilizes a stabilized tungsten-halogen filament operating at elevated color temperature (~3000–3200 K), delivering continuous spectral output across the visible range (approximately 380–780 nm) with minimal UV emission and negligible infrared dominance in the usable beam path. The lamp’s core function is to serve as a stable, spectrally smooth, and intensity-controllable white-light reference—ideal for alignment, illumination calibration, interference studies, photometric validation, and qualitative spectroscopic demonstrations. Its design follows fundamental radiometric principles, enabling reproducible irradiance control without significant spectral shift over the adjustment range—a critical requirement for comparative optical measurements.
Key Features
- Continuously adjustable DC-powered intensity control via front-panel rotary potentiometer, enabling fine-grained luminance modulation from ~5% to 100% rated output without flicker or color temperature drift.
- Integrated ground-glass diffuser plate mounted in front of the collimated output port, generating uniform Lambertian (cosine) angular distribution for controlled diffuse illumination—essential for reflectance measurements and homogeneous sample illumination.
- Robust aluminum housing with passive thermal management, ensuring stable operation during extended duty cycles; lamp module is user-replaceable with standard G4 bi-pin halogen bulb (12 V / 20 W, included).
- Electrical safety compliance with GB/T 12113–2003 (equivalent to IEC 61000-4-5 for surge immunity) and reinforced insulation between primary and secondary circuits.
- Compact benchtop form factor (120 × 80 × 150 mm) with rear-mounted IEC C14 AC inlet and low-noise linear power supply—optimized for integration into teaching labs and optical breadboard setups.
Sample Compatibility & Compliance
The GY-1A is compatible with standard optical components including lenses, filters, polarizers, integrating spheres (with appropriate input apertures), and photodetectors calibrated for visible-range responsivity (e.g., silicon photodiodes traceable to NIM). It supports routine verification of photometric linearity, relative spectral response, and geometric alignment accuracy in undergraduate physics laboratories. While not certified for clinical or industrial metrology applications, its output stability (±2.5% over 30 min at constant setting) meets pedagogical requirements aligned with ISO/IEC 17025–2017 clause 7.2.2 for teaching instrument performance validation. No hazardous substances are used per RoHS Directive 2011/65/EU Annex II.
Software & Data Management
The GY-1A operates as a standalone analog instrument with no embedded firmware or digital interface. Intensity calibration is performed manually using a NIST-traceable photometer (e.g., ILT1700 with SEL-033 detector) and documented per lab-specific SOPs. For institutions implementing GLP or GMP-aligned workflows, intensity settings may be recorded in electronic lab notebooks (ELN) with timestamped entries and operator ID—supporting audit readiness under FDA 21 CFR Part 11 when paired with compliant ELN platforms. No proprietary drivers or configuration software are required or provided.
Applications
- Undergraduate optics laboratories: Young’s double-slit interference, Newton’s rings, Michelson interferometer alignment, and diffraction grating characterization.
- Photometry training: Luminous flux estimation, inverse-square law verification, and relative illuminance mapping using calibrated lux meters.
- Optical system commissioning: Collimation checks, aperture alignment, and stray-light assessment in spectrophotometer or ellipsometer prototypes.
- Material reflectance comparison: Qualitative evaluation of surface scattering behavior across matte, glossy, and textured samples using the integrated diffuser.
- Calibration reference: Provision of repeatable broadband illumination for validating CCD/CMOS sensor flat-field correction routines.
FAQ
What is the typical color temperature of the GY-1A at full intensity?
Approximately 3150 K, measured with a calibrated spectroradiometer under steady-state conditions.
Can the GY-1A be used with fiber-optic couplers?
Yes—its output port accepts standard SM1-threaded (1.035″-40) lens tubes; optional FC/PC or SMA adapters are available separately.
Is the halogen bulb replaceable by the end user?
Yes—the G4-base 12 V / 20 W tungsten-halogen lamp is field-replaceable using standard tools and requires no recalibration.
Does the unit include a calibration certificate?
No—calibration is application-specific and must be performed in situ using accredited reference instruments per ISO/IEC 17025 guidelines.
What safety standards does the GY-1A comply with?
It conforms to GB/T 12113–2003 (surge immunity), GB 4706.1–2005 (general safety for household appliances), and basic EMC requirements per GB 9254–2008 (Class B).
