Nikon Corporation will release the “Rayfact UV25mm F2.8” industrial C-mount lens suitable for ultraviolet cameras. Rayfact’s UV series is suitable for visual inspection of semiconductor wafers and electronic components, and is used to detect fine scratches and irregularities, and to identify materials that are difficult to separate with visible light. It is also used in areas such as combustion research and plasma research, and is expected to be used in a wide range of fields in the future.
The “Rayfact UV25mm F2.8” released this time is optimized for the Sony Semiconductor Solutions “IMX487” UV image sensor, a high-definition camera sensor with 2.74 μm square pixels, the smallest pixel size* in the industry, and has been enlarged to the edge of the image Designed for clear pictures. In addition, the clarity has been improved compared to previous products, making it possible to study a wider area with a higher resolution.
- ※As of October 21, 2024, according to Nikon research.
Distribution summary
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Key features
- Compatible with ultraviolet light in the wavelength range of 200 to 400 nm
- Optimized design for Sony Semiconductor Solutions’ “IMX487” UV wavelength CMOS image sensor
- Image circle is Φ19.3mm, compatible with sensor type 1.2
- Ensures F2.8 brightness at standard viewing angle
- Minimizes focus shift within the wavelength range used
- Compatible with a very flexible C mount
Key specifications
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| focal length (mm) |
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| F number (∞) |
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| wavelength range (nm) |
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| image size (mm) |
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| the size of an object (mm) 1 |
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| distance between objects (mm) |
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| neighborhood Illumination ratio （%）※2 |
F2.8 |
| F4.0 | |
| aberration distortion （%）※2 |
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| working speed (mm) |
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| filter size | |
| External dimensions (mm) |
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| quality (g) |
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- ※1maximum value
- ※2When using the IMX487 sensor
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