Bar code reading device with symmetrical lenses
The utility model belongs to the technical field of bar code reading, and discloses a bar code reading device with a symmetric lens, which comprises a shell, the symmetric lens, a lighting assembly, a decoding deck and a photosensitive element. The symmetrical lens comprises two lenses which are com...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model belongs to the technical field of bar code reading, and discloses a bar code reading device with a symmetric lens, which comprises a shell, the symmetric lens, a lighting assembly, a decoding deck and a photosensitive element. The symmetrical lens comprises two lenses which are completely consistent in parameter and symmetrical in layout, the lenses are fixed in a lens cone through a pressing ring, a diaphragm is located in the center of the lens cone, and the lens cone is of a step type structure. According to the utility model, the symmetrical design of the double lenses is adopted, so that the scene requirements of high pixel, large field angle, low distortion and long depth of field can be met, and the limitation of a single lens is solved; and meanwhile, the structural design of the lens inner barrel is also symmetrical, and straight barrel type assembly is adopted, so that the assembly difficulty and cost are reduced.
本实用新型属于条码识读技术领域,公开了一种具有对称式镜头的条码识读设备,包括外壳,对称式镜头,照明组件,解码板,感光元件。所述对称式镜头 |
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