——Interview with Mr. Bruce Owen, International Sales Manager of American Optical Research Associates, General Manager of Wang Bohua, Design Systems Trading (Shanghai) Co., Ltd.
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   In optical design, optical energy loss has always been the most problematic issue for design engineers. There are three reasons for the loss of light energy in the optical system: reflection loss of the transmission surface, absorption loss of the reflection surface, and absorption loss inside the optical material. Optical design engineers need a powerful optical design software that minimizes the loss of light source through precise calculations, which in turn shortens the product development cycle. The release of the professional optical design software LightTools 6.2 is undoubtedly the new gospel of optical design engineers.
   On March 16, Gaogong LED Network reporter accepted the invitation of Sha Yibo Design Systems Trading (Shanghai) Co., Ltd. to interview Mr. Bruce Owen, International Sales Manager of Optical Research Associates (ORA).
   Bruce Owen Rochester University graduate student, now ORA International Marketing Sales Manager, joined ORA in 1979, led the development of optical software design procedures and provided technical support. He has presided over user training in the ORA seminar and is currently responsible for the development and technical support of LightTools users in the international market.
   LightTools is a new interactive 3D solid modeling software system with optical precision that provides the most modern means to directly describe light sources, lenses, mirrors, beam splitters, diffractive optics, prisms, scanning drums, Mechanical structure and light path. Because LightTools combines optical and mechanical components in a unified system, and is equipped with the power to “place†the light source and emit non-sequential surface ray tracing, it is designed in the system, complex system design, and optical machine. One-piece design, stray light analysis, lighting system design analysis, academic exchanges and data exchanges between departments and departments, project demonstration or product promotion can play an important role and become an ideal tool.
   When introducing LightTools software, Mr. Bruce said: Before 2008, it was mainly used in research institutes and some traditional optical applications. With the development of domestic general LED lighting, the application of optical design software has gradually increased, and Sha Yibo The company's cooperation also marks the market development of LightTools software in the field of general lighting. Semiconductor lighting (LED) is one of the most promising high-tech fields in the 21st century, and it is also a huge potential market that ORA attaches great importance to.
Figure 1 LightTools LED design example
   As the third lighting revolution after the open flame and incandescent lamps, LED lighting, a new high-efficiency solid-state light source, has the advantages of long life, energy saving, color, miniaturization, etc., and will become another leap in the history of human lighting.
   Faced with the huge business opportunities and development prospects of semiconductor lighting, manufacturers from all over the world have stepped into this huge market. Although China is the world's largest producer of lighting sources and lamps, it is mainly for the low-end and mid-end products market, but not strong. To get rid of this situation, domestic LED lighting manufacturers are required to continue to innovate, and to develop and manufacture products with the concept of quality. From the source of product design, we will work hard to get rid of the industry homogenization competition and create new and core competitive products to participate in more intense international competition.
   For the reporter's point of view, Mr. Bruce agrees very well that semiconductor lighting is abroad, especially in the United States, and ORA has accumulated a lot of experience in serving optical design engineers. ORA is very willing to present its achievements in automotive lighting, LCD backlight (PDA), office applications (projectors), and urban lighting in front of Chinese users. The introduction of LightTools 6.2 also has some considerations based on this aspect, which can help enterprises shorten the product development cycle and improve product quality quickly. At present, ORA and CCS (Sai ​​Yibo) are working together to hope that LightTools can better serve Chinese optical companies.
   At present, China's LED product technology innovation and application development capabilities are gradually improving, device reliability research position is more prominent, test methods and standards are gradually getting closer, all of which mark that China's LED industry has entered a new stage of development. . After more than 30 years of development, China's LED industry has initially formed a relatively complete industrial chain including the production of epitaxial wafers, the preparation and packaging of chips, and the application of LED products.
   For this good trend, Mr. Wang Bohua, general manager of Sha Yibo, believes that the mature semiconductor lighting industry chain is a powerful driving force for LED lighting applications. However, although the LED lighting market has great potential, the market application is still a gradual process, which is also a test for semiconductor manufacturers. The market is hot, and suddenly a large number of traditional manufacturers enter this emerging field, but the market's potential has not been fully stimulated, and some companies that do not have the ability to innovate or have weak research and development capabilities will naturally lose at the beginning of this starting line. It is necessary to use a powerful optical design software to strengthen product development, shorten product development cycle and improve product quality. The release of LightTools 6.2 is a good way to help engineers and vendors achieve these goals.
   The cooperation between Shayibo and ORA will help to develop domestic semiconductor lighting, which is of great significance to enhance the international competitiveness of the industry. In the current version of LightTools 6.2 released by ORA, the design engineer's experience has been greatly improved. Here, Mr. Wang has made a description of LightTools 6.2:
Analysis of test points using reverse ray tracing: LightTools now supports ray illuminating from the test points on the receiver to one or more sources in the model for illuminance and intensity analysis of the test points. This feature greatly improves the simulation efficiency of the model and allows local illuminance values ​​to be found at specific locations in the receiver.
   LightTools SolidWorks Interface Module: The 3D mechanical model built by SolidWorks software can be integrated with LightTools software. In the process of communication and optimization using two software, the optical property definitions and changes of the model can be transferred in both directions in LightTools and SolidWorks.
Improvements have improved receiver and charting capabilities: New light intensity data measurement capabilities and the ability to draw histograms along the longitudinal plane. This greatly improves the accuracy of the measurement, especially the near field measurement. In addition, the far field receiver's charting capabilities have been improved so that the receiver's orientation and coordinates can now be clearly depicted and displayed.
Supports the format of the files required for industrial lighting design: You can export files of the light intensity distribution files IES and LDT standard formats from LightTools.
   Support for the use of composite particles in bulk scattering materials: LightTools now supports the definition of composite particles in bulk scattering materials, allowing support for multiple phosphor modeling.
   Practical enhancements: LightTools' user interface has many enhancements and improvements, including new surfaces based on reference points and coordinate system definitions. The new system navigation flags make it easier to identify the type of entity. New mouse control settings can be The model can be enlarged and moved, and multiple selections and editing can be performed.
   Enhancements to the optimization module: The enhanced LightTools optimization module defines optimization functions, including new optimization function-based test points and light intensity surfaces, as well as simple light definition functions. LightTools' backlight optimization module has been further enhanced with new features, especially keyboard backlight optimization.
Figure 2 Front and back contrast of backlight optimization
   Optical Research Associates (ORA) is known for developing the world's leading CODE V optical engineering software. In 1995, based on the development of users' needs and computer technology, the company launched the latest product, the optical system modeling software LightTools, which was immediately welcomed and praised by users all over the world and won international awards. In 1997, ORA developed the Illumination module that was successfully used with the LightTools main program to solve the computer-aided design problem of the lighting system.
About Sha Yibo
   Cybernet Systems Co., Ltd. is a Japanese listed company specializing in CAE software, related technical services and solutions. It has more than 20 years of experience in CAE, providing solutions including optical, electronic, mechanical, nanotechnology, and new drugs. In the application fields of development, IT information technology and knowledge innovation, there are more than 2,500 customers in Japan, providing more than 78,000 software usage rights and holding more than 800 technical trainings every year. Currently, it has branch offices in China and Taiwan and has a good reputation in the optical and electronic design industry. For more information on Cybernet, please visit:
China Cybernet website: http://
Taiwan Cybernet website: http://
(High-tech LED Network News Center reporter Zhong Qiong / Wen)
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