A 5000-pixel high sensitivity type color line sensor has been developed. A Simple voltage amplifier is installed in its output circuit. The amplifier is consist of an AC coupling capacitor, a negative feedback capacitor and a clamp MOS transistor, in addition to the conventional MOS inverter amplifier, realizing noise reduction like built-in CDS circuit, stable operation without delicate voltage adjustment and stable voltage gain characteristics, with sensitivity of 65μV/e.
A dot sequential CCD color linear sensor employing high-speed driving method has been developed for color image scanners. This device has only one row of sensors in dot sequential form and a separate register for each primary color. Therefore the output signals are unaffected by the positional deviation of sensors or color mixing caused by transfer degradation. The data rate of this device is 18MHz, twice as high as the conventional linear sensor employing the same configuration of sensors and registers.
A Contact Image Sensor (CIS) was developed for a flatbed type facsimile, image scanner, photocopier etc. It is made up of multichip sensor ICs and a new lens array, in place of the Rod Lens Array (RLA) used previouly. Therefore, the Depth Of Focus (DOF) problems which had previously occured in the flatbed CIS were eliminated, due to an improved DOF obtained by using the new lens array. The sensor unit size was virtually the same as in the previous series. The advantage of flatbed type machines is that they can be miniaturized, simply assembled, easily maintained and so on.
Two new-type flip-chip semiconducter bonding methods and two new-type optical substrates have been developed. In addition, two new-type multi-chip direct contact-type image sensors have been developed, using the above bonding methods and optical substrates, for graphic image scanners used in office equipment such as high-speed facsimiles, intelligent photo-copy equipment and computers.
An MCCS (M__-ulti-C__-hip C__-ontact S__-ensor) has high performance such as low noise level below 15mV and high operational frequency of 2MHz. Such performance has been achieved by utilizing a clamping circuit for reducing difference of off-set voltage among individual chips, an FPN (F__-ixed P__-attern N__-oise) cancellation circuit and high drivability OP-AMP.
In1989, KODAK announced plans to develop a digital imaging system for motion picture film. On september 25th,we are opening a Digital Film Center "Cinesite" in Burbank, California. High resolution electronic intermediate system "Cineon" will be used to scan and digitize 35mm motion picture film so the images can be manipulated at image computing workstations. The digital pictures will then be reproduced onto film without compromising the quality of the original image.
Electronic images such as electronic still camera images or computer graphics are increasing in number as input images to printing process. Hi-Vision has changed the mutually compensating relationship, i.e. prompt response and information preservation, motion picture and still image etc., between Hi-Vision and printing. Owing to the features of Hi-Vision such as high defintion image quality, and the capability to select the exact scene. Hi-Vision printing, defined by the printing of Hi-Vision images, has been developed. In this report we will introduce Hi-Vision printing with an example of its application to newspaper printing for the Olympic Games of Barcelona.