发明申请
- 专利标题: MULTI-SPECTRUM IMAGE CAPTURING DEVICE AND MULTI-SPECTRUM ILLUMINATING DEVICE
- 专利标题(中): 多光谱图像捕获装置和多光谱照明装置
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申请号: US11669779申请日: 2007-01-31
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公开(公告)号: US20070120046A1公开(公告)日: 2007-05-31
- 发明人: Hiroyoshi Kobayashi
- 申请人: Hiroyoshi Kobayashi
- 申请人地址: JP Tokyo
- 专利权人: OLYMPUS CORPORATION
- 当前专利权人: OLYMPUS CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2003-385540 20031114
- 主分类号: H01J3/14
- IPC分类号: H01J3/14
摘要:
A multi-spectrum image capturing device includes a multi-spectrum illuminating device comprising LED's for emitting lights of different wavelengths from one another, a plurality of optical rods for relaying the lights emitted from the LED's, an optical diffusion element for diffusively reflecting the lights from the optical rods by a white diffusion surface and an aluminum-coated reflecting surface to be irradiated at an angle of about 60° with respect to an image-capturing optical axis, and an optical sheet for further diffusing the lights from the optical diffusion element, and also includes an image-capturing optical system and a CCD for forming an image based on lights reflected from an irradiated surface under illumination by the multi-spectrum illuminating device to capture the formed image. An image output captured by the CCD is analyzed to measure color components of the irradiated surface.