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SD Optics never stops challenging. With years of experience and core competency(WiseScope), we develop vision systems that overcome the limitations of the existing ones.
SD Optics never stops challenging. With years of experience and core competency(WiseScope), we develop vision systems that overcome the limitations of the existing ones.
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SD Optics is a leading company in the optical field, securing a solid position in the industry through continuous technological innovation and development. Leveraging MALS™ technology, the company is accelerating the development of new products to meet industry demands and has recently launched the WiseScope Vx200 optical module. The WiseScope Vx200 optical module integrates MALS™ (Micromirror Array Lens System) technology to provide essential features for visual inspections. These include real-time EDoF (Extended Depth of Field), All In Focus 2D/3D imaging, multi-focus settings, focus-locking functions, 3D measurements, intuitive depth map information acquisition, and 3D profile generation, including cross-sectional profiles.Notably, the WiseScope Vx200 offers flexibility in changing magnifications, thanks to its compatibility with multiple objective lenses via a nosepiece. This allows users to freely switch magnifications according to inspection needs. Additionally, it can be used as an independent microscope for visual inspections when combined with specific objective lenses and can also be integrated into inspection equipment. The features of the WiseScope Vx200 optical module include:- High-speed focus change technology utilizing MALS™ (Micromirror Array Lens System)- EDoF (Extended Depth of Field) and 3D imaging capabilities with MALS™ technology- Convenience and flexibility in selecting objective lens magnifications- Real-time 3D and depth map generation- Auto-Focus, Multi-Focus, and All-in-Focus functions- Auto-Focus and Focus-Lock functions for specific regions of interest (ROI)- Optimized lighting system application- Accurate 3D measurements with calibration programs- Capability to build independent 3D microscopes when combined with objective lenses SD Optics continues to lead as a total solution provider in the optical vision application field. The company is committed to strengthening its influence in the optical field through ongoing innovation and development.
Equipment that can quickly detect defects by inspecting semiconductor and display material components in three dimensions (D) has been developed.
SD OPTICS (SD OPTICS) has released a 3D line scanner that performs 3D inspection in real time.The scanner utilizes the "High-Speed Variable Focus Device (MALS)" technology developed independently by SD Optics and supplied to the German Zeiss electron microscope.It is possible to quickly inspect a subject with a height (step) and obtain a high-definition 3D image.
Typical 3D scanners are divided into area (area) inspection and line inspection methods.When looking closely at narrow areas, area inspection is performed, and line inspection is performed for inspection of semiconductor chips and display panels.Line inspection is a method of moving the inspection line to scan the entire object, similar to a copier moving a light line and scanning it.
Line inspection is easy to obtain a 2D (2D) image, but 3D image acquisition has high technical difficulty. This is because the focus of the scanner camera lens needs to be readjusted due to different subject heights.Whenever the inspection line moves, the focus must be renewed.There are 3D line scanners that can be scanned with some automatic focus, but it takes a long time and the image is not clear because an actuator or motor is used to move the lens.Even this depends on foreign products.
SD Optics solved this problem with a high-speed variable focus element.An element is a kind of digital lens. It is made of micro-precision mechanical technology (MEMS) and is smaller than 1cm, but contains 8,000 ultra-fine mirrors inside. It moves ultra-fine mirrors through voltage and controls the angle of light to focus in real time.It is similar to focusing the lens of the human eye with a different shape.SD Optics is the only company that has secured this technology.
Using a high-speed variable focus element, it is possible to automatically focus according to the height of the subject when the inspection line of the 3D line scanner moves.It obtains 3D images in real time according to the speed of movement of the inspection line.By utilizing 3D inspection software developed by SD Optics, various data such as subject height can also be quantified.
SD Optics is set to supply 3D line scanners. Currently, it is discussing with customers to apply it to semiconductor, display, and PCB inspection lines.
Seo Chung-soo the CEO of SD Optics said, "The speed of inspecting semiconductor wafers and display panels is so fast that not only samples but also full inspection is possible," adding, "We plan to diversify our product portfolio using high-speed variable focus devices such as 3D line scanners."
Issued Date: 2023.02.26
Application of ultra-high varifocal lenstechnology
Emerging as an alternative to expensive 3D microscopes
Releasing this month at Photonics West
SD OPTICS announced on the 26th that they have developed 'WiseTopo', a 3Ddigital optical module using MEMS-based lenses.
This product is characterized by overcoming the limitations of 2D microscopeswith fixed focus which can used by mounting a module instead of an existingmicroscope image sensor.
The range recognized as being in focus during shooting is called depth of field(DoF), and 2D microscopes have very limited DoF. The plane can be seen fromabove, but the exact shape or height change of the object cannot be easilydetected. Solving this problem requires refocusing manually or with a Z-axis(height) motor, which is inconvenient and less productive.
SD OPTICS products also adopted 'C-mount' as a fixed mount standard requiredwhen removing the existing microscope image sensor and mounting the module,enhancing versatility. Since many microscopes adopt this standard, SD OPTICSproducts can be used regardless of the brand model.
In addition, they provide functions including △Depth of field expansion function △Real-time 'all-in-focus' thatfocuses in all areas △'Fast auto focus' that automatically focuses on the desired area △Real-time 'multi-focus lock'function that maintains focus even when the sample is moved.
SD OPTICS plans to unveil their products at the world's largest opticsexhibition 'Photonics West 2023' to be held at the end of this month and beginto target the market in earnest. Demand for 3D replacement of existing 2Dmicroscopes is the target. As of last year, the optical microscope market wasestimated at 2.6 billion USD (about 3.2 trillion KRW). Among them, 2Dmicroscopes account for more than 70%.
SD OPTICS’ Vice President Kyung-Suk Jeong said, “It is an innovative technologythat can evolve existing 2D microscopes into high-priced 3D microscopes, and weare proud to build the foundation for popularization of 3D microscopes. We planto upgrade performance and functions so that we can target the bio microscopemarket in the future.”
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