摘要:
A laser diode capable of performing self-pulsation operation, and capable of sufficiently reducing the coherence of laser light and stably obtaining low-noise laser light is provided. A laser diode includes: a laser chip including at least one laser stripe which extends in a resonator length direction between a first end surface and a second end surface opposed to each other, in which the laser stripe includes a gain region and a saturable absorption region in the resonator length direction, and the width of the laser stripe in the saturable absorption region is larger than the width of the laser stripe in the gain region.
摘要:
A laser diode capable of performing self-pulsation operation, and capable of sufficiently reducing the coherence of laser light and stably obtaining low-noise laser light is provided. A laser diode includes: a laser chip including at least one laser stripe which extends in a resonator length direction between a first end surface and a second end surface opposed to each other, in which the laser stripe includes a gain region and a saturable absorption region in the resonator length direction, and the width of the laser stripe in the saturable absorption region is larger than the width of the laser stripe in the gain region.
摘要:
An image processing apparatus includes an evaluation value calculation unit configured to acquire an evaluation value from image data, a reduction coefficient calculation unit configured to calculate a reduction coefficient based on the evaluation value, a reduction unit configured to subject the image data to image processing to reduce color bleeding in a target area in the image data based on the reduction coefficient, and a size change unit configured to change the size of the image data. The reduction coefficient calculation unit calculates the reduction coefficient to reduce the color bleeding in a target area in the image data when the evaluation value exceeds a threshold. The threshold is set so that the range of the evaluation value where the reduction coefficient is not calculated when the size change unit sets the size of the image data to a second value larger than a first value is made wider than the range of the evaluation value where the reduction coefficient is not calculated when the size change unit sets the size of the image data to the first value.
摘要:
An image pickup apparatus includes a first image generator 3 that generates a first unit image based on a signal read from the image pickup device with each read cycle of the signal, a detector 5 that detects a luminance of the first unit image and detects a luminance variation in a plurality of the first unit images, a second image generator 6 that amplifies the first unit image in accordance with the luminance to generate a second unit image if the luminance variation exists, and a controller 8 or 9 that generates a focus evaluation signal based on the second unit image to perform a focus control using the focus evaluation signal. The controller does not use the focus evaluation signal based on the second unit image generated from the first unit image in which the luminance is lower than that of a predetermined level for the focus control, and the controller uses the focus evaluation signal based on the second unit image generated from the first unit image in which the luminance is higher than that of the predetermined level for the focus control.
摘要:
To provide a selective radio paging receiver which can receive timely and efficiently even under heavy traffic the service information which can include a vast amount of data. The selective radio paging receiver of the present invention comprises a receiving unit for receiving a selective radio paging signal, a user operation unit for accepting operations by a user, an analyzing unit for analyzing the received signal, a memory for storing temporarily the information which was divided at the time of transmission, an assembling unit for assembling the divided information, a man-machine interface for analyzing the operation information, and a display unit for displaying the output of the man-machine interface.
摘要:
An image pickup apparatus capable of reducing camera-shake blur and rolling-caused distortion of image data obtained by shooting without including invalid data. An object obtained by shooting is stored in a memory area as first image data, and data having a smaller data size than the first image data is acquired as second image data by clipping from the memory area. A clipping position which enables correction of camera-shake blur is calculated according to an amount of movement due to a camera shake. Range information indicative of a range in the memory area and shift amounts used for correcting rolling-caused distortion are calculated. Rolling-caused distortion of the second image data is corrected based on the calculated shift amounts.
摘要:
A wheel type traveling body includes: a drive device provided on a frame for forming a chassis of the wheel type traveling body; pairs of left and right front and rear wheels which are provided on a front axle and a rear axle respectively, which are provided at the front and rear of the frame, respectively; a propeller shaft provided between the front and rear axles and transmitting the travel drive force of the drive device to the front and rear axles; and a bearing provided on the frame and rotatably supporting an intermediate part of the propeller shaft. The wheel type traveling body also includes a protection member provided so as to be separated from the bearing in the radial direction of the propeller shaft and so as to cover the outer periphery of the bearing from below.
摘要:
An image pickup apparatus includes a first image generator 3 that generates a first unit image based on a signal read from the image pickup device with each read cycle of the signal, a detector 5 that detects a luminance of the first unit image and detects a luminance variation in a plurality of the first unit images, a second image generator 6 that amplifies the first unit image in accordance with the luminance to generate a second unit image if the luminance variation exists, and a controller 8 or 9 that generates a focus evaluation signal based on the second unit image to perform a focus control using the focus evaluation signal. The controller does not use the focus evaluation signal based on the second unit image generated from the first unit image in which the luminance is lower than that of a predetermined level for the focus control, and the controller uses the focus evaluation signal based on the second unit image generated from the first unit image in which the luminance is higher than that of the predetermined level for the focus control.
摘要:
Whether a user of a video camera can discern an unnatural motion or the discernable unnatural motion is permissible is evaluated based on an taken image so as to make a change between mixing of still image shooting driving and maintaining of motion image shooting driving.
摘要:
An image pickup apparatus capable of reducing camera-shake blur and rolling-caused distortion of image data obtained by shooting without including invalid data. An object obtained by shooting is stored in a memory area as first image data, and data having a smaller data size than the first image data is acquired as second image data by clipping from the memory area. A clipping position which enables correction of camera-shake blur is calculated according to an amount of movement due to a camera shake. Range information indicative of a range in the memory area and shift amounts used for correcting rolling-caused distortion are calculated. Rolling-caused distortion of the second image data is corrected based on the calculated shift amounts.