Designing Lenses for Near-Infrared and Fluorescence Endoscopy

Watch our video on optical design and fluorescence endoscopy and download our new white paper for a more in-depth look at how to optimize the performance of NIR fluorescence endoscopy in medical and life science applications.
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Designing Lenses for Near-Infrared and Fluorescence Endoscopy

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Optical Lens and Filter Advances Improve Medical and Bioscience Device Performance

Hyper-wide-angle fundus camera allowing wide field fundus photography

Joint development with Nara Institute of Science and Technology

Fundus image

Fundus camera are used for early detection of frequent causes in Japan of blindness such as glaucoma, retinitis pigmentosa and diabetic retinopathy. Although wider view angle is necessary for eye fundus imaging and examination, existing cameras currently used for medical examination have viewing angle of 60°which detects only part of eye fundus.There are difficulties in designing a lens for clear photography of a concave sphere such as the fundus, and projecting light through the lens to the fundus. Tamron has specifically designed and completed a prototype of hyper-wide-angle lens optimized for fundus photography. The lens was installed into near-infrared fundus camera developed by Nara Institute of Science and Technology and approximately 180° of hyper-wide viewing angle photographing was achieved. Without mydriatic (eye drop) used to dilate the pupils, a wide field of eye fundus image can be acquired.

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