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Laser light source with digital chromatic control for medical, diagnostic and surgical applications

Grant number: 18/10249-0
Support type:Research Grants - Innovative Research in Small Business - PIPE
Duration: March 01, 2019 - February 28, 2021
Field of knowledge:Engineering - Biomedical Engineering - Medical Engineering
Principal researcher:Alexandre Martinewski
Grantee:Alexandre Martinewski
Company:Sigmed Equipamentos Eletrônicos Ltda. - EPP
CNAE: Fabricação de aparelhos eletromédicos e eletroterapêuticos e equipamentos de irradiação
Fabricação de instrumentos e materiais para uso médico e odontológico e de artigos ópticos
City: Ribeirão Preto
Associated research grant:16/15325-0 - Laser light source with digital chromatic control for medical, diagnostic and surgical applications, AP.PIPE
Associated scholarship(s):19/05024-1 - Laser light source with digital chromatic control for medical, diagnostic and surgical applications, BP.PIPE


The light sources for fiber optic lighting have wide applicability in the medical specialties, promoting lighting or image capture. Additionally, solid state lighting has great prospects for general lighting, with enormous ramifications throughout the world. As a result, enormous efforts have been made to promote their efficiency and decrease their costs. The solid state lighting based on LEDs "InGaN" (LEDs) and phosphorus has shown the highest luminous efficiency of any "white" halogen light source, but with the restriction of only emitting a single color with a dispersed focus. This results in difficulty in capture by the optical fiber. In this context, the need for a polychromatic source which allows the emission of light from the red to white, with a great ability to focus suggests the use of lasers, becoming more efficient electrical energy into optical energy, a great challenge in this setting, to obtain white light laser. Therefore, this is the exact challenge of this project, getting white sources of laser light (SLL) from the technologies that are currently available, providing advantages such as better focus and performance. The equipment with white laser light source will be constituted by a combination of the respective collimated beams after passing through lenses, mirrors drivers. There will be four laser guns, namely, red, green, blue, and yellow. The SLL will position itself as an innovative alternative on the market by integrating the functions described above, in addition to offering greater durability, as well as the regulation intensity of the color components, and can thus be corrected any type of chromatic distortions, intentionally or correctively. Moreover, the generation of light by means of light emitting laser diodes present the greater efficiency of white light generation with low energy loss during the process as another great advantage, since the laser focus will be directed into the optical fiber and present major advantages over currently available technologies. (AU)

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