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AssigneeFuji Photo Optical Co., Ltd.
InventorsFumio Kobayashi, Tetsuo Udagawa
Estimating the term…
In a three-dimensional image scanner, a grating projection type moire topography is used, so as to capture three-dimensional form information of an object to be measured easily in a short time with a high degree of freedom in measurement. Also, a heat-insulating partition comprising at least two partition walls forming a cooling/heat-insulating path is disposed between a light source and a heat-sensitive section, so as to effectively inhibit the heat generated by the light source from being transmitted to the heat-sensitive section. The three-dimensional form information of the object is captured by a measurement head 12 having a function as a grating projection type moire device. As a consequence, a reference grating such as that in a grating shadow type moire device is unnecessary, and it will be sufficient if a virtual reference grating surface is set at a position conjugate with both of a projection grating 40 and an observation reference grating 46, whereby the size of the measurable object would not be restricted, and the object can be disposed fore and aft through the virtual reference grating surface. A first partition wall 74 is disposed so as to separate a projection lamp 32 and an illumination lamp 64 from a CCD camera 52, and a second partition wall 76 is disposed on the side of the lamps 32, 64, so as to form a cooling passage 102 for guiding the heat generated by both lamps 32, 64 to a cooling fan 70. As a consequence, heat insulation is attained between the lamps 32, 64 and the CCD camera 52, and the temperature rise of the partition wall 74 is suppressed. Further, a cooling fan 72 and a third partition wall 78 are disposed on the side of the CCD camera 52 with respect to the first partition wall 74, so as to form an exhaust heat-insulating path 104. As a consequence, heat is effectively inhibited from being transmitted to the CCD camera 52 via the first partition wall 74.
A three-dimensional image scanner for capturing three-dimensional form information and pattern information (two-dimensional image) of an object to be measured and generating a three-dimensional image of said object according to thus captured three-dimensional form information and pattern information (two-dimensional image),
A three-dimensional image scanner for capturing three-dimensional form information and pattern information (two-dimensional image) of an object to be measured and generating a three-dimensional image of said object according to thus captured three-dimensional form information and pattern information (two-dimensional image),
A three-dimensional image scanner for capturing three-dimensional form information and pattern information (two-dimensional image) of an object to be measured and generating a three-dimensional image of said object according to thus captured three-dimensional form information and pattern information (two-dimensional image),
Dependencies are inferred from the claim text.