Launch of Rayfact UV25mm F2.8 C-Mount Lens for Ultraviolet Cameras

Nikon Corporation is pleased to announce the release of the new C-mount industrial lens Rayfact UV25mm F2.8, designed for use with ultraviolet cameras. This Rayfact UV lens series is ideal for visual inspections of semiconductor wafers and electronic components, detecting microscopic scratches and surface irregularities. It can also identify materials that are difficult to distinguish under visible light. Additionally, this lens series is also used in areas such as combustion and plasma research and its applications are expected to expand in the future.

The Rayfact UV25mm F2.8 is optimized for use with the IMX487 high resolution UV image sensor featuring the industry’s smallest^* 2.74µm square pixels manufactured by Sony Semiconductor Solutions Corporation., This lens is designed to ensure clear images all the way to the edges and is brighter compared to previous products, enabling high resolution inspections over lager areas.

• *As of October 21, 2024, according to a survey by Nikon Corporation

Product Name: Rayfact UV25mm F2.8

Order Start Date: December 1, 2024

• Supports an ultraviolet wavelength range of 200 nm - 400 nm.
• Design optimized for Sony Semiconductor Solutions’ IMX487, a CMOS image sensor compatible with UV wavelengths
• Φ19.3 mm image size compatible with 1.2" sensors
• Maintains brightness of F2.8 at standard field angle.
• Minimal focal shift within supported wavelength range
• Compatible with highly versatile C-mount

Magnification                                   ∞          -0.05x            -0.15x            -0.20x
Focal length (mm)                           25.0
F Number (∞)                                   F2.8 - F16
Wavelength range (nm)                   200 - 400
Image size (mm)                              Φ19.3 (compatible with 1.2" sensors)
Object size (mm)^*1                           ─        Φ386.0         Φ128.7         Φ96.5
Object-to-image distance (mm)      ─       569.9              236.4             195.7
Relative illumination (%)^*2    F2.8  22.4      28.1                 38.8                 43.3
                                                F4.0  38.8      47.1                 61.1                 67.0
Distortion (%)^*2                               -0.8       -0.48               -0.08               +0.06
Working distance (mm)                   ─         488.7              155.2             114.5
Mount size                                        C-mount
Attachment size                               M35.5 (P = 0.5)
Diameter/length (mm)                      Φ60 x 63.5
Weight (g)                                         Approx. 380
 

*1Maximum value
*2When using the IMX487 sensor

The information is current as of the date of publication. It is subject to change without notice.