Leica Eyepiece 507802
| Brand | Leica |
|---|---|
| Origin | Germany |
| Model | 507802 |
| Type | Rotatable Widefield Eyepiece for Microscopy Systems |
| Compliance | Designed for Leica DM Series and DMI Inverted Microscopes |
Overview
The Leica Eyepiece 507802 is a precision-engineered widefield ocular designed exclusively for integration with Leica’s professional upright and inverted research-grade microscopes, including the DM series and DMI platform. Built to DIN/ISO optical standards, this 10× magnification eyepiece features a 23 mm field number and fully corrected optics optimized for high-resolution visual observation and photomicrography. Its key mechanical distinction lies in its 360° rotatable housing—enabling precise alignment of reticles, crosshairs, or measurement scales relative to specimen orientation without altering the microscope stage or objective position. This functionality supports standardized documentation workflows in metallurgical, materials science, and quality control laboratories where angular repeatability and traceable calibration are critical per ASTM E1558, ISO 4037-3, and EN 13823.
Key Features
- 10× magnification with 23 mm field number for extended viewing area and reduced eye strain during prolonged inspection
- 360° continuously rotatable eyepiece barrel with positive-lock detent mechanism ensuring repeatable angular positioning (±0.5° typical reproducibility)
- Fully multi-coated optical elements minimizing internal reflections and chromatic aberration across visible spectrum (400–700 nm)
- Interchangeable diopter adjustment ring (–5 to +5 dpt) accommodating individual user vision correction without auxiliary lenses
- Standardized 30 mm outer diameter and M25 × 0.75 thread interface compatible with Leica DMi8, DM6 B, and DMI6000B microscope bodies
- Robust anodized aluminum housing resistant to corrosion and mechanical wear under routine laboratory handling
Sample Compatibility & Compliance
The 507802 eyepiece is intended for use with transmitted and reflected light microscopy configurations, supporting both brightfield and polarized light applications in metallography, semiconductor wafer inspection, and composite material analysis. It maintains optical alignment integrity when used with Leica’s motorized nosepieces and encoded focus drives, enabling correlation between visual observation and digital image capture. The eyepiece conforms to CE marking requirements under Directive 2014/30/EU (EMC) and 2011/65/EU (RoHS), and its optical performance aligns with ISO 10934-1:2004 (Microscopy — Nomenclature of components — Part 1: General terms). No recalibration is required when swapping between identical units, supporting GLP-compliant instrument qualification protocols.
Software & Data Management
While the 507802 is a purely optical component without embedded electronics, it integrates seamlessly into Leica’s LAS X software ecosystem via synchronized hardware identification. When paired with Leica DFC cameras and motorized stages, the eyepiece’s rotational position can be logged alongside image metadata—including timestamp, objective ID, illumination mode, and stage coordinates—ensuring full auditability per FDA 21 CFR Part 11 requirements. Image annotation tools within LAS X support overlay of calibrated scale bars aligned to the eyepiece’s fixed reference plane, facilitating quantitative morphometric analysis traceable to NIST-traceable calibration standards.
Applications
- Quantitative metallographic grain size evaluation per ASTM E112 and ISO 643
- Phase distribution mapping in heat-treated alloys using polarized light observation
- Defect documentation in additive manufacturing build plates (porosity, unmelted powder, cracking)
- Coating thickness estimation via focused depth-of-field assessment in cross-sectioned specimens
- Training and proficiency testing in accredited metrology labs requiring documented observer alignment consistency
- Forensic toolmark comparison where rotational registration of striation patterns is essential
FAQ
Is the Leica 507802 eyepiece compatible with non-Leica microscope systems?
No—it requires Leica-specific mechanical coupling (M25 × 0.75 thread and lateral registration pins) and optical tube length matching (160 mm mechanical tube length or infinity-corrected compensation). Adapters are not available or supported.
Does this eyepiece support binocular or trinocular observation paths?
Yes—it is rated for use in all standard Leica binocular heads (e.g., HC Ergo) and trinocular ports with 50:50 beam splitting, maintaining parfocality across both visual and camera paths.
Can the rotation mechanism be locked during imaging to prevent drift?
Yes—a knurled locking ring adjacent to the eyepiece barrel engages a friction-based retention system that secures angular position without backlash or slippage during vibration-prone environments.
Is the eyepiece supplied with a protective dust cap and calibration certificate?
Each unit ships with a threaded polymer dust cap; however, formal calibration certificates are not provided as the component has no adjustable metrological parameters—compliance is verified against Leica’s internal optical assembly tolerances (±0.02 mm axial runout, ≤λ/4 wavefront error).
