1. A color measuring device, comprising:
a housing;
a reference chart held to the housing;
a sensor to capture, from inside the housing, image data of a two-dimensional region that includes the reference chart and an area outside the housing, the sensor being held by the housing, the captured image data including subject image data of a subject whose color is to be measured, the subject being located in the area outside the housing;
an illumination light source to illuminate the region from inside the housing, the illumination light source being held by the housing;
a detector to detect a distance between predetermined two points within the subject image data obtained by the sensor;
a correcting unit configured to correct the subject image data obtained from the sensor according to a ratio of the detected distance to a reference distance; and
a calculating unit configured to calculate a colorimetric value of the subject based on the subject image data corrected by the correcting unit.
2. The color measuring device according to claim 1, further comprising:
a determining unit configured to determine a shape distortion of an image of the subject; and
a deciding unit configured to decide whether the subject image data is to be used to calculate the colorimetric value of the subject based on the presence or absence of the shape distortion or a type of the shape distortion.
3. The color measuring device according to claim 2, further comprising:
a suction amount adjusting unit configured to adjust an amount of suction generated by a sucking unit for holding the subject on a holding member when the shape distortion is distortion of a predetermined pattern.
4. The color measuring device according to claim 1, further comprising,
a position adjusting unit configured to adjust a position of the housing in an optical axis direction of the sensor such that a difference between the detected distance and the reference distance approximates to zero.
5. The color measuring device according to claim 1, further comprising:
a position adjusting unit configured to adjust a position of the housing in an optical axis direction of the sensor such that a difference between the detected distance between the two points and the reference distance approximates a predetermined value.
6. The color measuring device according to claim 1,
wherein the detector detects the distance between the two points from the subject image data including the subject.
7. The color measuring device according to claim 1, wherein the detector detects the reference distance from an image of the reference chart included in the image data.
8. The color measuring device of claim 1, wherein the detector detects the distance between the predetermined two points and the predetermined two points are set to have a predetermined distance therebetween.
9. An image forming apparatus comprising:
an image output unit configured to output an image to a recording medium; and
the color measuring device according to claim 1,
wherein the color measuring device calculates a colorimetric value of the image using the image output from the image output unit as the subject.
10. A color measuring method executed in a color measuring device that includes a housing, a reference chart held to the housing, a sensor configured to capture, from inside the housing, image data of a two-dimensional region that includes the reference chart and an area outside the housing, the sensor being held by the housing, the captured image data including subject image data of a subject whose color is to be measured, the subject being located in the area outside the housing, and an illumination light source to illuminate the region from inside the housing, the illumination light source being held by the housing, the color measuring method comprising:
detecting a distance between predetermined two points within the subject image data obtained by the sensor;
correcting the subject image data obtained from the sensor according to a ratio of the detected distance to a reference distance; and
calculating a colorimetric value of the subject based on the corrected subject image data.
11. The color measuring method of claim 10, wherein the predetermined two points are set to have a predetermined distance therebetween.
12. An image forming apparatus, comprising:
a housing;
a reference chart held to the housing;
a sensor to capture, from inside the housing, image data of a two-dimensional region that includes the reference chart and an area outside the housing, the sensor being held by the housing, the captured image data including subject image data of a subject whose color is to be measured, the subject being located in the area outside the housing;
an illumination light source to illuminate the region from inside the housing, the illumination light source being held by the housing;
a detector to detect a distance between predetermined two points within the subject image data obtained by the sensor;
a correcting unit configured to correct the subject image data obtained from the sensor according to a ratio of the detected distance to a reference distance; and
an image forming unit configured to change an amount of recording liquid used to form an image on a recording medium based on the subject image data corrected by the correcting unit.
13. The image forming apparatus of claim 12, wherein the detector detects the distance between the predetermined two points and the predetermined two points are set to have a predetermined distance therebetween.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An adjusting apparatus for a thermal release of a switching device (1), having a bimetallic element (3) held in a fixed position on a bimetallic support (4), whose free end (3b) is spaced apart from a tripping lever (6) and acts on it as a result of thermal deformation increasingly in the tripping direction (D), in which case the distance (A) can be set by bending the bimetallic support (4), characterized in that the bimetallic support (4) has, in the region of a first predetermined bending point (7), a retaining limb (4b), which runs parallel to the bimetallic element (3) and is connected to the contact end (3a) of said bimetallic element, as well as an operating limb (4a), which runs approximately transversely with respect to said retaining limb, whose free end, is guided in or against an enclosure profile (12 or 15, 16), can be pivoted on an at least approximately circular adjustment path (B).
2. The adjusting apparatus as claimed in claim 1, characterized in that the bimetallic support (4) has, along its retaining limb (4b), a second predetermined bending point (8), spaced apart from the first predetermined bending point (7).
3. The adjusting apparatus as claimed in claim 1 or 2, characterized in that the bimetallic support (4) has a fixing limb (4c) which adjoins the retaining limb (4b) via a bend (8, 8) and is at least approximately U-shaped.
4. The adjusting apparatus as claimed in one of claims 1 to 3, characterized in that the end of the operating limb (4a) of the bimetallic support (4) is guided against an adjustment profile (12) in the form of an arc.
5. The adjusting apparatus as claimed in claim 4, characterized in that the adjustment profile (12) forms an adjustment path (B) at least approximately in the form of a circular arc and having a decreasing radius (R, R).
6. The adjusting apparatus as claimed in one of claims 1 to 3, characterized in that the operating limb (4a) of the bimetallic support (4) has a pivot pin (14), which runs transversely with respect to the longitudinal direction of the limb and can be fixed in position in a pivot opening (15), which is in a fixed position, a further (third) predetermined bending point (13) being provided between said pivot pin and the first predetermined bending point (7).
7. The adjusting apparatus as claimed in one of claims 1 to 6, characterized in that the or each predetermined bending point (7, 8, 13) is formed by a material cutout in the respective vertex of the bend in the bimetallic support (4).
8. A switching device, in particular a power breaker, having the adjusting apparatus (4, 12 or 15) as claimed in one of claims 1 to 7.
9. The switching device as claimed in claim 8, in which the adjusting apparatus (4, 12 or 15) compensates for any shrinkage of the enclosure such that, when the distance (A) between the tripping lever (6) and the free end (3b) of the bimetallic element (3) changes, the tripping lever (5) moves automatically in a corresponding manner in the clockwise or counterclockwise direction.