A near-field far-field same screen optical path adjusting system
CN224696172UActive Publication Date: 2026-08-28BEIJING LANMU LASER TECH CO LTD
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Patent Information
- Application Number
- CN202522338160.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-11-04
AI Technical Summary
Technical Problem
举例说明，若要对12颗LD发出的光束进行空间合束，则需要先通过48个光学镜片完成校准，在校准过程中，光屏需要往复240次以上，这是一个非常巨大且耗时的工作
Benefits of technology
本实用新型提供了一种近场远场同屏的光路调整系统，通过光路设计，实现了远场和近场光斑同屏显示的效果。光斑同屏显示可以通过远场近场光斑的重叠情况表征LD出光的角度倾斜；通过远场近场光斑的大小表征光束的发散或收缩情况。本实用新型节省了光屏在远场和近场来回往复移动的时间，提升了光束准直调节效率；避免光屏往复，节省校准时间。
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Smart Images
Figure CN224696172U_ABST
Abstract
The utility model relates to a kind of optical path adjusting systems of near field far field same screen, involve optical path calibration field. Including LD, first 45-degree beam splitter, second 45-degree beam splitter, first 45-degree mirror, second 45-degree mirror, near field light shutter and far field light shutter;The light beam emitted by LD is divided into N light beam and P light beam by first 45-degree beam splitter;N light beam is transmitted through first 45-degree beam splitter again, and then is transmitted through second 45-degree beam splitter again, reaches the light screen position, and near field light spot is shown on light screen;P light beam is reflected by first 45-degree beam splitter, and then is propagated forward along the direction perpendicular to optical axis, and is folded back under the action of third 45-degree mirror and fourth 45-degree mirror, and is reflected by second 45-degree beam splitter, reaches the light screen, and far field light spot is shown on light screen.The utility model can save light screen reciprocating operation time, and greatly shorten optical path calibration time.
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