The Horizontal Four-wave Dynamic Interferometer features a variable shear rate four-wavefront transverse shear optical common-path interferometer, fully digitizing and enhancing the capabilities of traditional visual laser planar interferometers. This system is compactly designed, offers stable interference fringes, and uses self-interfering wavefront technology to precisely measure deformation and wavefront transmission in parallel planes, making it highly suitable for quality control in manufacturing environments. Additionally, our equipment offers exceptional cost-effectiveness, providing a high-value solution for users.
Product name |
Horizontal Four-wave Dynamic Interferometer |
Detectable sample aperture (mm) |
Up to 100, there are two interchangeable aperture sizes of 40 and 100 |
CCD pixels |
2048*2048 |
Wavelength (nm) |
633±10 |
Dynamic range (um) |
100 |
Precision PV value (λ) |
Better than 1/10 wavelength |
RMS measurement repeatability (λ) |
1/1000 wavelength |
Sensitivity (nm) |
2 |
Real time display frame rate (Hz) |
15 |
The system is equipped with random equipment |
Image processing computer |
Processing software |
The software "Industrial Window Component Distortion Detection Instrument" can display real-time output wavefront values such as PV value, RMS value, and POWER value |
Overall dimensions (including sample stage) (mm) |
600 (length) x 300 (width) x 180 (height) |
Total weight (KG) |
30 |
◆Common path self interference - no reference plane required
◆Good real-time performance, able to achieve dynamic detection of dozens of frames
◆Good vibration resistance, no need for isolation platforms, can be applied for testing in ordinary workshop environments
◆Good cost-effectiveness, simple adjustment, and compact structure
The BOJIONG Horizontal Four wave Dynamic Interferometer was compared with the results obtained from the ZYGO GPI interferometer, which is currently commonly used internationally. The average values of PV, RMS, and POWER for the same component were calculated after being measured separately in two devices, and the results were consistent. The equipment has been applied to the workshop site.
◆Beam quality detection and transient wavefront detection
◆Optical flat panel components, sapphire substrates, precision metal surfaces, and other surface shapes, as well as transmission wavefront detection
◆Detection of distortion of flat glass in smartphones and high-definition monitoring windows
◆Bioquantitative phase microscopy imaging
◆Can be used for high-precision optical system image quality detection
◆Detection of adaptive optical wavefront sensing and other aspects
Transmission wavefront detection results of sapphire components |
Surface shape detection of optical components |
BOJIONG developed the Horizontal Four-wave Dynamic Interferometer leveraging the common-path self-interference principle of the FIS4 four-wave interferometric sensor, this device is capable of real-time surface shape detection for planar optical elements within a 100mm aperture. The beam carrying the surface shape information of the measured element is diffracted through a specially encoded grating, which divides the wavefront horizontally into four parts, creating a two-dimensional interference pattern with four wavefronts in common-path shearing. By demodulating this two-dimensional interference pattern, the precise surface contour information of the element can be captured.Professional software module
◆Equipped with the "Horizontal Four-wave Dynamic Interferometer" software, the system is capable of displaying and outputting real-time 3D images of the measured optical element plane, as well as providing key surface measurement parameters such as Peak-to-Valley (PV), Root Mean Square (RMS), and Power Spectral Density (POWER) values.
◆Additionally, the software features the capability to export raw measurement data, offering precise quantitative analysis support across a broad spectrum of research fields, and enabling users to more conveniently conduct subsequent data analysis and in-depth research.
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No. 578 Yingkou Road, Yangpu District, Shanghai, China
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