Telephoto lens
A telephoto lens is the abbreviation of a long-focal-length photographic lens. It is the core optical component in the fields of professional photography and long-distance imaging. Its core function is to achieve a close-up imaging effect on distant objects through long-focal-length optical design, optically magnifying the distant subject while compressing the spatial perspective of the frame, highlighting the subject and blurring the background. Yongxin Optics' telephoto lens products feature high resolution, high contrast, and excellent telephoto imaging capability.
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Line-scan lens
Imaging Lenses and Objectives
Astarphotonics
Focal length [Resolution(Pixel):4K / Relative aperture:F2.8 / Mount:M42X1 / Image format(“):Φ43mm / Field of view(°):53]: 25mm Resolution Pixel [Focal length(mm):25mm / Relative aperture:F2.8 / Mount:M42X1 / Image format(“):Φ43mm / Field of view(°):53]: 4K Relative aperture [Focal length(mm):25mm / Resolution(Pixel):4K / Mount:M42X1 / Image format(“):Φ43mm / Field of view(°):53]: F2.8
Line-scan lenses are machine-vision lenses mainly used for production-line inspection, including pharmaceutical fill-level and label inspection, date and batch-code reading, safety-seal inspection and dimensional consistency checks. Chenzheng Optoelectronics provides various line-scan lens designs and customization.
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Digital camera lens
Imaging Lenses and Objectives
Astarphotonics
Focal length [Relative aperture:1:1.8 / Mount:Various options available / Image format(“):APS-C Half-frame / Horizontal field of view(°):51°]: 25mm Relative aperture [Focal length(mm):25mm / Mount:Various options available / Image format(“):APS-C Half-frame / Horizontal field of view(°):51°]: 1:1.8 Interface Mount [Focal length(mm):25mm / Relative aperture:1:1.8 / Image format(“):APS-C Half-frame / Horizontal field of view(°):51°]: Various options available
Chenzheng Optoelectronics produces various digital-camera lenses and provides lens design and customization.
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UAV aerial imaging lens
Imaging Lenses and Objectives
Astarphotonics
Focal length [Resolution(Pixel):35MP / Relative aperture:1:5.6 / Mount:SONY NEX-E / Image format(“):APS-C half-frame / Horizontal field of view(°):51]: 25mm Resolution Pixel [Focal length(mm):25mm / Relative aperture:1:5.6 / Mount:SONY NEX-E / Image format(“):APS-C half-frame / Horizontal field of view(°):51]: 35MP Relative aperture [Focal length(mm):25mm / Resolution(Pixel):35MP / Mount:SONY NEX-E / Image format(“):APS-C half-frame / Horizontal field of view(°):51]: 1:5.6
UAV aerial-photography lenses, also called surveying lenses, support aerial imaging, mapping and geological surveys. Chenzheng's lenses feature ultralow distortion, high-transmission multilayer coatings, lightweight construction and ED glass. Various designs and customization are available.
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Machine vision lens
Imaging Lenses and Objectives
Astarphotonics
Focal length [Resolution (Pixel) ：8MP / Relative aperture ：1:2.8 / Mount ：C / Image format (“)：1/1.8 / Horizontal field of view Horizontal field view(°)：18]: 25mm Resolution Pixel [Focal length Focal length(mm)：25mm / Relative aperture ：1:2.8 / Mount ：C / Image format (“)：1/1.8 / Horizontal field of view Horizontal field view(°)：18]: 8MP Relative aperture [Focal length Focal length(mm)：25mm / Resolution (Pixel) ：8MP / Mount ：C / Image format (“)：1/1.8 / Horizontal field of view Horizontal field view(°)：18]: 1:2.8
Machine-vision lenses inspect products on production lines, including electronic-component defects, batch numbers, manufacturing dates and expiry dates. Chenzheng's lenses offer large image formats, 4K resolution, ultralow distortion and high-transmission multilayer broadband coatings, designed for automated factory lines. Various types are available.
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Telecentric lens （Telecentric）
Imaging Lenses and Objectives
Astarphotonics
Operating Wavelength: 400 – 700nm Optical magnification: 0.5X Working distance: 110mm±3%
Telecentric lenses correct parallax in conventional industrial lenses by maintaining constant magnification over a specified object-distance range, particularly useful when measured objects lie in different planes. This lens combines excellent telecentricity and low distortion with a fixed aperture and lockable focus for stable performance in measurement systems, workshops and assembly lines.
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