Distortion inspecting apparatus and distortion inspecting method

A distortion inspecting apparatus, which inspects perspective distortion of a transparent object, comprising:

• a projector that projects a plurality of display points arranged at predetermined intervals;
• a pedestal that disposes the transparent object at a position where an image projected by the projector passes through;
• a screen that displays the image that passed through the transparent object;
• a camera that captures the image displayed on the screen;
• and
• a control device that stores a reference position coordinate of the image that passed through a reference transparent object, compares the reference position coordinate with an inspection position coordinate of the image that passed through the transparent object as an object to be inspected, and calculates a displacement quantity of the reference position coordinate.

A distortion inspecting apparatus, which inspects reflective distortion of a reflective object, comprising:

• a projector that projects a plurality of display points arranged at predetermined intervals;
• a pedestal that disposes the reflective object at a position where an image projected by the projector is reflected;
• a screen that displays the image reflected by the reflective object;
• a camera that captures the image displayed on the screen;
• and
• a control device that stores a reference position coordinate of the image reflected by a reference reflective object, compares the reference position coordinate with an inspection position coordinate of the image reflected by the reflective object as an object to be inspected, and calculates a displacement quantity of the reference position coordinate.

A distortion inspecting apparatus, which inspects reflective distortion of a reflective object, comprising:

• a screen that displays a plurality of display points arranged at predetermined intervals;
• a pedestal that disposes the reflective object at a position where an image displayed by the screen is reflected;
• a camera that captures the image reflected by the reflective object;
• and
• a control device that stores a reference position coordinate of the image reflected by a reference reflective object, compares the reference position coordinate with an inspection position coordinate of the image reflected by the reflective object as an object to be inspected, and calculates a displacement quantity of the reference position coordinate.

A distortion inspecting method of inspecting perspective distortion of a transparent object, comprising:

• projecting a plurality of display points arranged at predetermined intervals;
• displaying an image projected by the plurality of display points and allowing the image to pass therethrough;
• disposing the transparent object at a position where the image has passed through;
• capturing the image that passed through the transparent object;
• and
• storing a reference position coordinate of the image that passed through a reference transparent object, comparing the reference position coordinate with an inspection position coordinate of the image that passed through the transparent object as an object to be inspected, and calculating a displacement quantity of the reference position coordinate.

A distortion inspecting method of inspecting perspective distortion of a transparent object, comprising:

• projecting a plurality of display points arranged at predetermined intervals;
• disposing the transparent object at a position where an image projected by the plurality of display points passes through;
• displaying the image that passed through the transparent object;
• capturing the image displayed by the displaying;
• and
• storing a reference position coordinate of the image that passed through a reference transparent object, comparing the reference position coordinate with an inspection position coordinate of the image that passed through the transparent object as an object to be inspected, and calculating a displacement quantity of the reference position coordinate.

A distortion inspecting method of inspecting reflective distortion of a reflective object, comprising:

• projecting a plurality of display points arranged at predetermined intervals;
• disposing the reflective object at a position where an image projected by the plurality of display points is reflected;
• displaying the image reflected by the reflective object;
• capturing the image displayed by the displaying;
• and
• storing a reference position coordinate of the image reflected by a reference reflective object, comparing the reference position coordinate with an inspection position coordinate of the image reflected by the reflective object as an object to be inspected, and calculating a displacement quantity of the reference position coordinate.

A distortion inspecting method of inspecting reflective distortion of a reflective object, comprising:

• displaying a plurality of display points arranged at predetermined intervals;
• disposing the reflective object at a position where an image displayed by the displaying is reflected;
• capturing the image reflected by the reflective object;
• and
• storing a reference position coordinate of the image reflected by a reference reflective object, comparing the reference position coordinate with an inspection position coordinate of the image reflected by the reflective object as an object to be inspected, and calculating a displacement quantity of the reference position coordinate.