1. A prepreg comprising:
a fibrous reinforcement; and
an uncured epoxy resin composition comprising:
an epoxy resin component; and
a curative powder comprising particles of 4,4\u2032-diaminobenzanilide wherein the size of said particles is less than 100 microns and wherein the median particle size is below 20 microns.
2. A prepreg according to claim 1 wherein said the median particle size is between 10 microns and 20 microns.
3. A prepreg according to claim 1 wherein said epoxy resin component consists essentially of a trifunctional epoxy.
4. A prepreg according to claim 1 wherein the stoichiometric ratio of said epoxy component to said 4,4\u2032-diamino benzanilide is between 1.0 to 1.0 and 1.0 to 0.7.
5. A prepreg according to claim 4 wherein the stoichiometric ratio of said epoxy component and said 4,4\u2032-diamino benzanilide is about 1.0 to 0.85.
6. A prepreg according to claim 1 wherein at least 70 percent of the particles in said curative powder have a particle size of below 50 microns.
7. A cured laminate comprising prepreg according to claim 1 that has been cured.
8. A cured laminate comprising prepreg according to claim 2 that has been cured.
9. A cured laminate comprising prepreg according to claim 3 that has been cured.
10. A cured laminate comprising prepreg according to claim 4 that has been cured.
11. A cured laminate according to claim 7 which has a flexural strength of at least 25 ksi and a strain to failure of at least 4.0 percent.
12. A method for making a prepreg comprising the step of combining a fibrous reinforcement with an uncured epoxy resin composition comprising:
an epoxy resin component; and
a curative powder comprising particles of 4,4\u2032-diaminobenzanilide wherein the size of said particles is less than 100 microns and wherein the median particle size is below 20 microns.
13. A method for making a prepreg according to claim 12 wherein said median particle size is between 10 microns and 20 microns.
14. A method for making a prepreg according to claim 12 wherein said epoxy resin component consists essentially of a trifunctional epoxy.
15. A method for making a prepreg according to claim 12 wherein the stoichiometric ratio of said epoxy component to said 4,4\u2032-diamino benzanilide is between 1.0 to 1.0 and 1.0 to 0.7.
16. A method for making a prepreg according to claim 12 wherein at least 70 percent of the particles in said curative powder have a particle size of below 50 microns.
17. A method for making a cured laminate comprising the step of curing prepreg according to claim 1.
18. A method for making a cured laminate comprising the step of curing prepreg according to claim 2.
19. A method for making a cured laminate comprising the step of curing prepreg according to claim 3.
20. A method for making a cured laminate comprising the step of curing prepreg according to claim 4.
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 assisting system comprising:
n units (n\u22671) of first photographing devices with which an apparatus is equipped, the n units of the first photographing devices being configured to pick up images and output image signals;
a receiving device configured to wirelessly receive image signals outputted from m units (m\u22671) of second photographing devices with which other external apparatus is equipped and to receive information regarding location, orientation, viewing angle, and moving speed of the m units of the second photographing devices, wherein part of photographing coverage of at least one of the second photographing devices is common with part of photographing coverage of at least one of the first photographing devices;
a selector configured to choose k units (n+m>k\u22671) of image signals out of image signals outputted from n units of the first photographing devices and image signals outputted from m units of the second photographing devices and received by the selector;
a controller configured to control choice of image signals by the selector by using information on the location, orientation, viewing angle, and moving speed of the n units of the first photographing devices and of the m units of the second photographing devices, and
a signal combiner to combine at least one of the chosen image signals outputted from n units of the first photographing devices with an image signal cut out from at least one of the chosen image signals outputted from m units of the second photographing devices and output a combined image signal, the cut out image signal being an image signal of a blind spot for all of n units of the first photographing devices,
wherein the controller is configured to dynamically switch the chosen image signals from the selector by using relative information between the location, orientation, viewing angle and moving speed of the n units of the first photographing devices and the location, orientation, viewing angle and moving speed of the m units of the second photographing devices so that the blind spot will remain, without interruption, within photographic coverage within the combined image signal,
wherein the controller calculates, by using information on the location, orientation, viewing angle, and moving speed of n units of the first photographing devices and m units of the second photographing devices, the time taken by a specific object in a common region of the photographing coverage of the first and second photographing devices to deviate from the common region;
wherein the controller controls, before the above time elapses, to switch the choice of image signals such that one or more of the image signals of p units (p\u22671) of third photographing devices with which the other external apparatus is equipped is chosen; and
wherein the specific object exists in the common region of the photographing coverage of the first and third photographing devices.
2. A driving assisting apparatus comprising:
n units (n\u22671) of first photographing devices mounted on a self-vehicle and picking up images around the self-vehicle;
a detector to detect information about the location, orientation, viewing angle, and moving speed of the first photographing devices;
a receiver to wirelessly receive image signals picked up by m units (m\u22671) of second photographing devices mounted on an other vehicle to picked up images around the other vehicle and picking up images around the self-vehicle, and to receive information on the location, orientation, viewing angle, and moving speed of the second photographing devices;
a selector to choose k units (n+m>k\u22671) of image signals by using, out of the image signals picked up by said first and second photographing devices, one or more information on the location, orientation, viewing angle, and moving speed of said first photographing devices detected by said detector and by using one or more information on the location, orientation, viewing angle, and moving speed of the second photographing devices received by said receiver;
a display to display k units of image signals chosen by said selector; and
a signal combiner to combine at least one of the chosen image signals outputted from n units of the first photographing devices with an image signal cut out from at least one of the chosen image signals outputted from m units of the second photographing devices and output a combined image signal, the cut out image signal being an image signal of a blind spot for all of n units of the first photographing devices,
wherein a controller is configured to dynamically switch the chosen image signals from the selector by using relative information between the location, orientation, viewing angle and moving speed of the n units of the first photographing devices and the location, orientation, viewing angle and moving speed of the m units of the second photographing devices so that the blind spot will remain, without interruption, within photographic coverage within the combined image signal,
wherein the controller calculates, by using information on the location, orientation, viewing angle, and moving speed of n units of the first photographing devices and m units of the second photographing devices, the time taken by a specific object in a common region of the photographing coverage of the first and second photographing devices to deviate from the common region;
wherein the controller controls, before the above time elapses, to switch the choice of image signals such that one or more of the image signals of p units (p\u22671) of third photographing devices with which the other vehicle is equipped is chosen; and
wherein the specific object exists in the common region of the photographing coverage of the first and third photographing devices.
3. A driving assisting apparatus according to claim 2, wherein said display displays two or more image signals chosen by said selector in succession or in separate windows on the same screen.
4. A driving assisting apparatus according to claim 2, wherein said display combines or superimposes and displays two or more image signals chosen by said selector.
5. A driving assisting apparatus according to claim 2 comprising a recognizing device to perform object recognition with respect to an image signal chosen by said selector, wherein said display displays an object recognized by said recognizing device.
6. A driving assisting apparatus according to claim 2, comprising a stereo-photographing processor to perform photographing in stereo by using two or more image signals chosen by said selector.
7. A driving assisting apparatus according to claim 2, wherein object recognition is performed in said first and second photographing devices and image signals of objects to be recognized including a person andor an obstacle around the self-vehicle are chosen and displayed.
8. A driving assisting apparatus according to claim 2, wherein, with respect to a region to be the driver’s blind spot which cannot be photographed by said first photographing devices because of an obstacle, image signals picked up by said second photographing devices are chosen and displayed.
9. A driving assisting apparatus according to claim 8, wherein, with respect to a region to be the driver’s blind spot which cannot be photographed by said first photographing devices because of an obstacle, when image signals picked up by said second photographing devices are chosen and displayed, a notice in voice about such processing is outputted.
10. A driving assisting apparatus according to claim 8, wherein when image signals picked up by said second photographing devices are chosen and displayed with respect to a region to be the driver’s blind spot which cannot be photographed by said first photographing devices because of an obstacle, the obstacle portion is colored and its image is explicitly displayed.
11. A vehicle having n units (n\u22671) of first cameras and a monitor for displaying images picked up by the first cameras, said vehicle comprising:
a receiver to wirelessly receive image signals outputted from m units (m\u22671) of second cameras with which a self-vehicle is not equipped, and to receive information regarding location, orientation, viewing angle and moving speed of the second cameras, wherein part of photographing coverage of at least one of the second cameras is in common with part of photographing coverage of at least one of the first cameras;
a selector to choose k units (n+m>k\u22671) of images signals out of image signals outputted from n units of the first cameras and image signals outputted from m units of the second cameras and received by the selector; and
a controller to control choice of image signals by the selector by using one or more information on the location, orientation, viewing angle, and moving speed of the n units of the first cameras and of the m units of the second cameras,
wherein, with respect to a region of photographing coverage to be a driver’s blind spot which cannot be photographed by the first camera because of an obstacle, at least one of the image signals picked up by the second cameras is chosen and displayed on the monitor, and
further comprising:
a signal combiner to combine at least one of the chosen image signals outputted from n units of the first cameras with an image signal cut out from at least one of the chosen image signals outputted from m units of the second cameras and output a combined image signal, the cut out image signal being an image signal of a blind spot for all of n units of the first cameras,
wherein the controller is configured to dynamically switch the chosen image signals from the selector by using relative information between the location, orientation, viewing angle and moving speed of the n units of the first cameras and the location, orientation, viewing angle and moving speed of the m units of the second cameras so that the blind spot will remain, without interruption, within photographic coverage within the combined image signal,
wherein the controller calculates, by using information on the location, orientation, viewing angle, and moving speed of n units of the first cameras and m units of the second cameras, the time taken by a specific object in a common region of the photographing coverage of the first and second cameras to deviate from the common region;
wherein the controller controls, before the above time elapses, to switch the choice of image signals such that one or more of the image signals of p units (p\u22671) of third cameras with which the self-vehicle is not equipped is chosen; and
wherein the specific object exists in the common region of the photographing coverage of the first and third cameras.