Lens convenient for core shift control
The utility model relates to the technical field of lenses, in particular to a lens convenient for core shift control, which comprises a lens frame, a sleeve and a plurality of lenses, at least two lenses in the plurality of lenses are core shift control lenses, at least one lens is a common lens, t...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to the technical field of lenses, in particular to a lens convenient for core shift control, which comprises a lens frame, a sleeve and a plurality of lenses, at least two lenses in the plurality of lenses are core shift control lenses, at least one lens is a common lens, the sleeve is fixed in the lens frame, and the core shift control lenses are arranged in the sleeve; and at least one common lens is arranged in the lens frame and outside the sleeve. Under the condition that the lens is only sensitive to the core shift of several lenses, all the core shift control lenses can be arranged in the sleeve, the core shift test is carried out independently, and the sleeve is arranged in the lens frame after the core shift control lenses pass the test, so that the manpower and material resources consumed by the core shift test of the lens can be greatly saved, and the production efficiency is improved.
本实用新型涉及镜头技术领域,特别是涉及一种便于偏芯管控的镜头,镜头包括镜框、套筒和多片镜片,多片镜片中至少两片镜片为偏芯管控镜片,至少一片镜片为普通镜片,套筒固定在镜框内,偏芯 |
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