フォトクロス List of Products and Services

We provide custom CGHs that have recently begun to be utilized for shape measurement of aspheric and freeform surfaces, as well as for high-precision alignment of complex optical systems. Based on your objectives and usage environment, we will design and manufacture a CGH that generates the desired wavefront with the necessary precision. Even if you are not familiar with CGHs, please feel free to consult with us. Our experienced technicians will propose appropriate methods for you. 【Specifications】 ■ Usable wavelength range: 360nm to 2000nm ■ Substrate size: 100mm x 100mm to 500mm x 500mm ■ Substrate materials: Synthetic quartz, blue plate glass ■ Minimum pattern pitch: 0.5μm *For more details, please download the PDF or feel free to contact us.

• mirror

We offer custom mirrors with high-precision aspheric and freeform surfaces. By combining our unique technology, the CGH (Computer Generated Hologram) high-precision shape measurement technology with robotic polishing technology, we have made it possible to manufacture high-precision mirrors in various shapes with virtually no shape limitations. The materials that can be polished include not only common mirror materials such as synthetic quartz and low-expansion glass ceramics (Zero-Dur, ClearCeram) but also various types of optical glass. 【Specifications】 ■ Shape accuracy: <λ/20 (PV) ■ Surface roughness: Surface roughness <3nm (rms) ■ Usable size: φ50mm to φ600mm ■ Substrate materials: - Synthetic quartz, Zero-Dur, ClearCeram, various optical glasses, cordierite ■ Coatings: Aluminum coat, silver coat with protective film, gold coat *For more details, please download the PDF or feel free to contact us.

• mirror

The "PX-07002-A" is a measurement unit capable of measuring the specular reflectance that cannot be measured by conventional spectrophotometers, such as concave and convex mirrors. It is equipped with an FC-type fiber port, allowing for the measurement of reflectance at various wavelengths in the visible to near-infrared range by preparing any fiber light source. Additionally, it can also be used as a monitoring device integrated into existing systems, so please feel free to consult us. 【Specifications】 ■ Method: Contact type ■ Measurable wavelengths: 532nm, 635nm, 780nm, 810nm, 1064nm ■ Reflectance measurement accuracy: <1% ■ Minimum mirror size: φ60mm ■ Accessories (optional): Calibration mirror, fiber light source *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments

The "PX-07001-A" is a portable, compact low-dispersion spectrometer. It features a wide slit width and high-efficiency optical elements, taking into account the domestic seeing size, while also pursuing further miniaturization, achieving "high efficiency, ultra-compactness, and lightweight" that is difficult for conventional spectrometers. Additionally, it is recommended for students' graduation research and observational practice. 【Specifications】 ■ Wavelength range: 380–720nm ■ Wavelength resolution (λ/Δλ): R~300@600nm ■ Slit width × slit length: 6"×120" ■ Size (spectrometer body only): 9×10×5cm ■ Weight (spectrometer body only): ~650g ■ Detector mount: C mount ■ Slit viewer field of view: 10.5'×7.9' *For more details, please download the PDF or feel free to contact us.

• Spectroscopic Analysis Equipment

The PX-08001-A is a non-contact precision freeform mirror shape measurement device that uses CGH (Computer Generated Hologram). By combining two principles, the CGH interferometer and the Hartmann method, it achieves measurements over a wide dynamic range (0.01μm to 100μm) that were impossible with conventional interferometers or Shack-Hartmann sensors. For example, it demonstrates significant power when gradually refining surface accuracy during the manufacturing process of large optical elements. 【Specifications】 ■ Method: 1. CGH interferometer method, 2. Hartmann method ■ Measurement wavelength: 633nm ■ Ejected beam diameter: φ50nm (0th order light) ■ Measurement dynamic range: 0.01μm to 100μm ■ Options: CGH for flat surface measurement, CGH for curved surface measurement *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments

We handle various optical mechanism designs. We offer design and simulation of various optical elements such as lenses, mirrors, and diffractive optical elements, as well as design analysis of mechanisms that hold these optical elements. In addition, we provide optical system construction, measurement and testing services, consulting, and we also handle the manufacturing and sales of optical components. Please feel free to contact us. 【Services】 ■ Design using ray tracing ■ Wave optical design ■ Optical simulation of complex systems *For more details, please download the PDF or feel free to contact us.

• Other optical parts