产品名称：苏光经纬仪弯管目镜（直角目镜）
Jiangsu Optical Theodolite Angled Eyepiece (Right-angle Eyepiece)

【产品概述】
苏光弯管目镜是专为DT402L/LP402/LT402L系列电子经纬仪研发的精密光学配件，采用90度折转光路设计，为工程测量、地形勘测等场景提供更便捷的目视观测方案。该目镜系统通过优化棱镜组合与多层镀膜工艺，有效提升图像解析度，使观测者在复杂环境下仍能获得清晰明亮的视场效果。主体结构采用轻量化合金与防刮光学镜片组合，在保证精度的同时实现设备整体重量的合理控制。

【核心优势】
• 人性化视角调节：直角观测设计有效避免仰视疲劳，支持±30度俯仰角度微调，满足隧道、基坑等狭窄空间作业需求
• 精密光学性能：搭载消色差复合镜组，视场直径达Φ5mm，边缘成像畸变率＜0.8%，确保标尺读数的准确性
• 稳固适配结构：定制化卡口设计实现与主机无缝衔接，三点式锁紧装置有效防止震动导致的观测偏移
• 全天候耐用设计：镜体表面经特殊防霉处理，关键部件配置防尘密封圈，适应-20℃至+50℃工作环境

【应用场景】
本产品适用于建筑基线放样、桥梁形变监测、矿山巷道测量等需要长期目视观测的领域。其折转式光路设计特别适合高空作业平台观测、地下管线定位等特殊体位测量场景，可显著降低作业人员颈部疲劳强度。配套遮光罩可灵活拆卸，满足强光环境下的观测需求。

【技术服务】
我们提供专业技术团队支持，包括目镜校准指导、日常维护建议及个性化改装方案咨询，确保设备在全生命周期内保持最佳工作状态。

[English Version]
Product Name: Jiangsu Optical Theodolite Angled Eyepiece (Right-angle Eyepiece)

[Product Overview]
Specially designed for DT402L/LP402/LT402L series electronic theodolites, this 90-degree angled eyepiece provides ergonomic observation solutions for engineering surveys and topographic mapping. Featuring optimized prism configuration with multi-layer coating technology, it delivers enhanced image clarity even in challenging environments. The lightweight alloy body paired with scratch-resistant optical components ensures measurement precision without compromising portability.

[Key Features]
• Ergonomic viewing angle: Right-angle design reduces neck strain, with ±30° vertical adjustment for confined spaces like tunnels
• Advanced optical system: Achromatic lens group provides Φ5mm field of view, maintaining edge distortion below 0.8%
• Secure mounting: Customized bayonet mount with triple-locking mechanism ensures vibration-resistant stability
• Durable construction: Fungus-resistant coating and dust-proof seals enable reliable operation from -20℃ to 50℃

[Applications]
Ideal for construction layout, bridge deformation monitoring, and mine surveying requiring prolonged visual observation. The folded light path design particularly benefits elevated work platforms and underground pipeline alignment, effectively reducing operator fatigue. Detachable sunshade adapts to various lighting conditions.

[Technical Support]
Our engineering team provides comprehensive services including calibration guidance, maintenance consultation, and customized modification solutions to optimize device performance throughout its service life.

（总字数：中英文各约420字）