摘要:
A photosensitive polyimide precursor composed of the structural units (A) represented by the following general formula (I) and the structural units (B) represented by the following general formula (II), in which the ratio of the molar quantity of the structural units (A) to the sum of the molar quantity of the structural units (A) and that of the structural units (B) is 0.01 or greater, and having a viscosity of 100 cP or above as measured at 25.degree. C. in the state of a 10% by weight solution in N-methylpyrrolidone: ##STR1## wherein R.sub.1 represents a tetravalent aromatic hydrocarbon residue; R.sub.2 represents a divalent aromatic hydrocarbon residue; X, identical or different represents a halogen or an alkyl group; and m represents 0 or an integer from 1 to 4. The photosensitivity of the present photosensitive polyimide precursor is about 20 to 100 times that of conventional products. After heat dehydration cyclization, it shows a heat resistance of 400.degree. C. or above.
摘要:
An image pickup apparatus, which comprises, in order from the object side, an aperture member having an opening section, a zoom lens changing a magnification by properly changing distances between a plurality of lens units, and an image pickup device, is provided with a flare stop which has an opening section with a set shape and is integrated with the most object side lens unit in the plurality of the lens units, the opening section of the aperture member does not intercept an effective light beam in the wide-angle position and intercepts a part of the effective light beam in the telephoto position, and the flare stop does not intercept in the wide-angle position the effective light beam having passed through the opening section of the aperture member and intercepts in the telephoto position a light ray which is included in the effective light beam passing through the opening section of the aperture member and strikes the edge of the opening section of the aperture member to be scattered.
摘要:
Transfer control means (41) transfers part of held digital contents in an internal storage device (51) to a network storage device (57). List information presentation means (42) returns list information which makes the digital contents stored in the internal storage device (51) and the network storage device (57) as the held digital contents in response to a list presentation request for the held digital contents. Upon reception of a data transmission request, search means (43) searches where the held digital contents are currently stored. If the result of the search shows the network storage device (57), content data transmission processing means (44) allows the stream-delivery of the data from the network storage device (57) to a network player (56). There is provided a server device for media (40) capable of maintaining the convenience of playback in a network player, while properly dealing with the large total size of held digital contents.
摘要:
A content reproducing apparatus comprises a server monitoring means for monitoring the connection status of a server existing on a network; a content information acquiring means for acquiring information of the contents on public view at the server; and a content reproducing means for reproducing the contents on public view at the server. When detecting a server connected to a network, the content reproducing apparatus acquires information of the contents on public view at the server, and automatically reproduces the contents on public view at the server based on the acquired information of the contents. The content reproducing apparatus is provided which can reproduce the contents on public view at DMSes on a network without requiring any troublesome operations.
摘要:
A zoom lens system includes, in order from an object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. During zooming from a wide-angle end to a telephoto end, a space between the first lens unit and the second lens unit narrows, at least the second lens unit moves only toward the object side, and the third lens unit is constituted of one positive lens.
摘要:
An abnormality detecting apparatus for an imaging apparatus that detects a presence of abnormalities in imaging apparatuses mounted on a vehicle to capture vehicle surroundings, which includes: a luminance variance value calculating device that calculates a luminance variance value of each image from the imaging apparatuses using the luminance value of each image from the imaging apparatuses obtained by the imaging apparatuses; and an abnormality detecting device that detects the presence of abnormalities in any of the imaging apparatuses in accordance with the luminance variance values calculated by the luminance variance value calculating device.
摘要:
An ECU of a night vision system stores small obtained images of provisional targets as six templates depending on the distance from infrared cameras, and selects one of the templates depending on the distance up to an actual object. Using the selected template, the ECU performs template matching on images obtained by the infrared cameras, and calculates coordinates of the inspection target. The ECU compares the calculated coordinates of the inspection target and stored reference coordinates with each other, and determines mounted angles of the infrared cameras.
摘要:
An image pickup apparatus, which comprises, in order from the object side, an aperture member having an opening section, a zoom lens changing a magnification by properly changing distances between a plurality of lens units, and an image pickup device, is provided with a flare stop which has an opening section with a set shape and is integrated with the most object side lens unit in the plurality of the lens units, the opening section of the aperture member does not intercept an effective light beam in the wide-angle position and intercepts a part of the effective light beam in the telephoto position, and the flare stop does not intercept in the wide-angle position the effective light beam having passed through the opening section of the aperture member and intercepts in the telephoto position a light ray which is included in the effective light beam passing through the opening section of the aperture member and strikes the edge of the opening section of the aperture member to be scattered.
摘要:
An image processing unit determines the size of a circumscribed quadrangle of the target object, and predicts the overlap of the two different objects. If overlap is predicted, the target object is divided into two divided regions L_b and R_b containing the left and right edges of the target object respectively, and by performing a correlation calculation between the left image and the right image captured by a stereo camera for each of the divided regions, the parallaxes of the respective divided regions L_b and R_b can be determined. Then, if the absolute value of the difference between the parallaxes of the respective divided regions L_b and R_b is greater than a predetermined value, a determination is made that different objects are overlapping within the target object, and the target object is divided for recognition, and the distance to the respective objects is calculated independently.
摘要:
A zoom lens system comprising, in order from an object side: a first lens unit comprising two lens components; and a second lens unit comprising one lens component, during zooming, a space between the first lens unit and the second lens unit changing, the first lens unit and the second lens unit having aspherical surfaces, at least one aspherical surface of the first lens unit satisfying the following condition: R1/h1