【中文介绍】
苏一光J2-2光学经纬仪是专业测量领域的高精度光学仪器，采用经典机械结构与现代光学技术相结合的设计理念，为工程测量、地形测绘和施工放样等场景提供可靠解决方案。仪器主体选用优质合金材料铸造，经过精密加工与多重调校，确保各机械轴系运转平稳，具备良好的环境适应性和长期稳定性。
该设备搭载高透光率光学系统，成像清晰锐利，30倍放大倍率配合5°宽视场角，可轻松捕捉远距离目标。分划板采用激光刻划工艺，标尺线条精细均匀，配合灵敏的测微器装置，实现最小显示值达1"的高精度角度测量。望远镜部分配备快速调焦旋钮与目镜屈光度调节环，适应不同视力使用者的观测需求。水平度盘与垂直度盘均设有双向读数窗口，通过数字化改进的读数方式有效降低人为判读误差。
仪器采用全封闭防尘结构设计，关键部位配置防震缓冲装置，能在-20℃至+50℃温度范围内保持稳定性能。基座部分配备强制对中装置，通过优化设计的锁紧机构实现快速定位与可靠固定。整机重量控制在4.8kg以内，配合可拆卸式三脚架，兼顾野外作业的便携性与架设效率。
苏一光深耕测量仪器领域三十余年，J2-2型产品传承品牌严谨的制造工艺，特别注重细节处理：金属表面经特殊防腐蚀处理，转动部件采用长效润滑技术，操作手轮纹理经过人体工学优化，即使在潮湿或低温环境下仍能保证顺畅操控。该仪器广泛应用于土木工程、地质勘探、建筑施工及教学科研等领域，是专业测量人员的理想工具。
【English Introduction】
The Suyi Optical J2-2 Theodolite is a high-precision optical instrument designed for professional measurement applications. Combining classic mechanical architecture with modern optical technology, it delivers reliable performance for engineering surveys, topographic mapping, and construction layout tasks.
Crafted from premium alloy materials through precision machining and multi-stage calibration, the instrument ensures smooth operation of mechanical axes with excellent environmental adaptability and long-term stability. The optical system features high light transmittance lenses that produce crisp images, supported by 30x magnification and a 5° wide field of view for clear target acquisition.
The laser-engraved reticle provides uniform scale markings, working in tandem with a sensitive micrometer to achieve angle measurement with 1" resolution. The telescope integrates rapid focusing knobs and diopter adjustment rings, accommodating users with varying visual acuity. Bidirectional reading windows on both horizontal and vertical circles enhance measurement accuracy through improved digital display technology.
Constructed with fully sealed dust-proof housing and shock-absorbing mechanisms, the instrument maintains stable performance within -20℃ to 50℃ temperature range. The forced centering device and optimized clamping system on the tribrach enable quick positioning and secure fixation. Weighing under 4.8kg with a detachable tripod, it balances portability and setup efficiency for field operations.
Suyi Optical s three-decade expertise in measurement instruments is reflected in J2-2 s meticulous craftsmanship: corrosion-resistant metal surfaces, long-life lubrication on rotating components, and ergonomically textured operation wheels ensure smooth handling even in humid or low-temperature environments. This theodolite serves as an essential tool for civil engineering, geological exploration, construction projects, and academic research, embodying reliable performance for professional surveyors.
