一种采用内置式遮光罩的镜头
By incorporating a built-in hood design, the problems of easy deformation and uneven sliding of the hood when installed outside the telescope tube are solved, achieving stable sliding and high sealing performance of the hood, thus improving its performance and observation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杭州图谱光电科技有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-17
Smart Images
Figure CN224519037U_ABST
Abstract
Claims
1. A lens employing a built-in lens hood, comprising a lens mounting tube (20) and a lens barrel (30) sleeved outside the lens mounting tube (20), characterized in that, An annular cavity is formed between the lens mounting tube (20) and the lens tube (30), and a light shield (10) that can slide along the axial direction is provided in the annular cavity. The outer side wall of the lens mounting cylinder (20) is provided with at least one limiting groove (22), and the inner side wall of the light shield (10) is provided with a slider that is slidably connected to the limiting groove (22). The front end of the light shield (10) is provided with a pull-out part (11), and the pull-out part (11) is located outside the annular cavity; The front outer side wall of the lens mounting tube (20) and the front inner side wall of the lens tube (30) are provided with velvet mounting grooves (21), and the first velvet (40) and the second velvet (50) are respectively provided in the two velvet mounting grooves (21).
2. The lens employing a built-in light shield according to claim 1, characterized by, The light shield (10) is provided with a first magnetic suction component, and the lens mounting cylinder (20) is provided with at least two second magnetic suction components that cooperate with the first magnetic suction component for positioning.
3. The lens employing a built-in light shield according to claim 2, characterized by, The first magnetic suction assembly includes at least one first mounting hole (13) provided on the light shield (10) and a first magnet (14) provided in the first mounting hole (13). The second magnetic assembly includes at least one second mounting hole (23) provided on the lens mounting cylinder (20) and a second magnet (24) provided in the second mounting hole (23).
4. The lens employing a built-in light shield according to claim 3, characterized by At least one first mounting hole (13) is uniformly arranged in a ring on the side wall of the light shield (10), and at least one second mounting hole (23) is uniformly arranged in a ring on the side wall of the lens mounting tube (20).
5. The lens employing a built-in light shield according to claim 2, wherein The lens mounting cylinder (20) has a second magnetic attraction component on the side wall near the front and rear ends of the annular cavity, respectively.