244results about How to "Accurate exposure" patented technology

An exposure apparatus includes a projection optical system for projecting a pattern on a reticle onto an object to be exposed, a reference mark that serves as a reference for an alignment between the reticle and the object, a first fluid that has a refractive index of 1 or greater, and fills a space between at least part of the projection optical system and the object and a space between at least part of the projection optical system and the reference mark, and an alignment mechanism for aligning the object by using the projection optical system and the first fluid.

A lithography reticle advantageously includes “proximity effect halos” around tight tolerance features. During reticle formation, the tight tolerance features and associated halos can be carefully written and inspected to ensure accuracy while the other portions of the reticle can be written/inspected less stringently for efficiency. A system for creating a reticle data file from an IC layout data file can include a processing module and a graphical display. The processing module can read the IC layout data file, identify critical features and define a halo region around each of the critical features. The graphical user interface can facilitate user input and control. The system can be coupled to a remote IC layout database through a LAN or a WAN.

An exposure apparatus for exposing a pattern formed on a mask (M) onto a photosensitive substrate (P) through a projection optical system (PL), comprising an upper pedestal (26) on which at least one of the projection optical system (PL) and a mask stage (MST) which is to hold the mask (M) is mounted, and a plurality of lower pedestals (6a) which supports the upper pedestal (26) and which has a longitudinal direction in a predetermined direction.

An electronic imaging sensor. The sensor includes an array of photo-sensing pixel elements for producing image frames. Each pixel element defines a photo-sensing region and includes a charge collecting element for collecting electrical charges produced in the photo-sensing region, and a charge storage element for the storage of the collected charges. The sensor also includes charge sensing elements for sensing the collected charges, and charge-to-signal conversion elements. The sensor also includes timing elements for controlling the pixel circuits to produce image frames at a predetermined normal frame rate based on a master clock signal (such as 12 MHz or 10 MHz). This predetermined normal frame rate which may be a video rate (such as about 30 frames per second or 25 frames per second) establishes a normal maximum per frame exposure time. The sensor includes circuits (based on prior art techniques) for adjusting the per frame exposure time (normally based on ambient light levels) and novel frame rate adjusting features for reducing the frame rate below the predetermined normal frame rate, without changing the master clock signal, to permit per frame exposure times above the normal maximum exposure time. This permits good exposures even in very low light levels. (There is an obvious compromise of lowering of the frame rate in conditions of very low light levels, but in most cases this is preferable to inadequate exposure.) These adjustments can be automatic or manual.

A camera can take a picture at the instant of activating a shutter release button and can store a plurality of pictures which in a buffer storage. The plurality of pictures contains pictures taken before as well as after the traditionally taken picture. This provides the user with the possibility of reviewing the pictures taken at the instant of activation of the shutter release button as well as the pictures in the plurality of pictures and selecting one or more preferred pictures to be stored in a non-volatile memory of the camera.

The present invention relates to a camera system.

The system includes a selector configured to select one of a still image shooting mode and a movie shooting mode, and

• • a communication unit employing a plurality of communication methods by which communication between an interchangeable lens and a camera body is performed. If the still image shooting mode is selected by the selector and a lens information request command is sent from the camera body to the interchangeable lens, the communication unit operates such that information on the interchangeable lens is sent from the interchangeable lens to the camera body. If the movie shooting mode is selected by the selector, the communication unit operates such that the information on the interchangeable lens is sent from the interchangeable lens to the camera body even without the lens information request command being sent from the camera body to the interchangeable lens.

A novel method and apparatus for controlling the display of a portable electronic device having a user input device and a camera function; the portable electronic device including a photosensor chip having a sensor array of a predetermined number of rows and columns of pixels for converting radiant energy into electronic signals representing an image for display via a viewfinder.; The method comprises selecting via the user input a zoom level and viewfinder resolution for the camera application, and in the event the zoom level is 1x then scaling the predetermined number of rows and columns of pixels to the selected viewfinder resolution and generating an image corresponding thereto; and in the event the zoom level is greater than 1x then cropping a region of interest of the predetermined number of rows and columns of pixels in accordance with the zoom level and then scaling the cropped region of interest in accordance with the viewfinder resolution and generating an image corresponding thereto.

This invention relates to a process for regulating the exposure time of a light sensor, characterized in that it comprises the following steps:

• • a) setting the exposure time of the sensor to a value selected in a first range of M prefixed values defined between a minimum and a maximum value;
  • b) acquiring an image of an object on the sensor, such image comprising a plurality of luminous pixels;
  • c) analyzing the acquired image in order to detect its level of luminosity;
  • d) comparing the detected level of luminosity with a prefixed higher (lower) global threshold level representative of a condition of overexposure (under-exposure) of the image;
  • e) varying the exposure time of the sensor and iteratively repeating the previous steps until an optimum exposure time equal to the highest (lowest) exposure time is found, amongst the ones set, for which the image presents a level of luminosity which is smaller (greater) than the prefixed higher (lower) global threshold level.

A digital camera includes an image pick-up element which receives light reflected from an object and generates image data of the object, and a light-receiving element which receives light reflected form the object and outputs light-quantity data for the object. The light-receiving element differs from the image pick-up element. In the sequence photograph mode, the exposure amount of the image pick-up element is controlled based on the light-quantity data output from the light-receiving element. In the other modes, the exposure amount of the image pick-up element is controlled based on the image data generated by the image pick-up element itself.

A mammography apparatus capable of irradiating radiation having enough irradiation dose to radiograph an image surely. The mammography apparatus has: a radiation source; a subject platform for supporting a subject so as to face the subject to the radiation source; a radiation image detector located so as to be faced to the radiation source with respect to the subject platform for detecting radiation transmitted through the subject; a controller for controlling the radiation source; wherein the controller sets an irradiation condition of the radiation to be irradiated from the radiation source based on control conditions including at least thickness of the subject and a distance from the radiation source to the subject platform.

A surveillance camera system includes a first camera 5 having an angle of view θ1, a second camera 6 which is a combination of two camera modules 6a, 6b each having an angle of view θ2, a third camera 7 which is a combination of three camera modules 7a, 7b, 7c each having an angle of view θ3, and a local camera 8 having an angle of view θs. The first to third cameras 5 to 7 act as area surveillance cameras to which the optimum shooting distance is set, respectively. The local camera 8 takes a shot of a local area, which is set in a shooting area of the third camera 7, at the narrowest angle of view θs. The respective cameras take a shot individually under automatic exposure control.

A triple imager arrangement is mounted onto a linear accelerator, providing pre- or post-treatment images of a patient, for verification and monitoring of patient position. Left and right diagnostic radiation sources mounted onto the treatment head. The triple imager arrangement is mounted on the gantry counterweight, with a portal imager and left and right diagnostic image detectors. Image-forming plates of the portal imager and the diagnostic imagers are positioned perpendicular to the therapy beam central axis, and perpendicular to the central axes of the diagnostic sources. The image forming plates are the same given distance X from the respective source. The resulting image information can be used in conjunction with an assistance module for assisting the linear accelerator therapist in accurate adjustment of the patient position.

An image-taking apparatus includes two-dimensionally arranged LEDs for emitting fill lights to eradiation areas. The image-taking apparatus also includes light-receiving sensors for respectively receiving reflected lights from the irradiation areas. The amount of the fill lights or the emission and ceasing of the fill lights are independently controlled so that a correct exposure can be obtained.

A photographing method based on dual cameras is used in electronic equipment. The method comprises the steps as follows: acquiring first exposure of a first camera and second exposure of a second camera; adjusting first photographing parameters of the first camera according to the first exposure, and adjusting second photographing parameters of the second camera according to the second exposure; when receiving a photographing instruction, making the first camera photograph a target object to get a first image, and making the second camera photograph the target object to get a second image; and fusing the first image and the second image to generate a target image. The invention further provides a photographing system based on dual cameras. Through the method and the system, the problem that the background is over-exposed or the foreground target object is dark in a backlight scenario can be improved effectively, an accurately exposed image can be obtained, the image quality is optimized, the imaging effect is improved, and the user experience is enhanced.

The present invention relates to a nano-scale MOS device having a saddle structure. Particularly, the invention relates to a high-density, high-performance MOS device having a novel structure capable of improving the scaling-down characteristic and performance of the MOS device, in which a channel and gate structure is formed in the shape of a saddle. The inventive MOS device is mainly characterized in that a channel region is recessed, a gate insulating film and a gate electrode are formed on the surface and sides of the recessed channel, and the gate electrode is self-aligned with the recessed channel. Namely, in the disclosed MOS device, a portion of the insulating film around the recessed channel is selectively removed to expose the surface and sides of the recessed channel. According to the present invention, the scaling-down characteristic of the device is excellent and current drive capability is greatly increased since a channel through which an electric current can flow is formed on the surface and sides of the recessed channel. Also, the ability of the gate electrode to control the channel is enhanced. Accordingly, the invention can improve device characteristics.

An electron beam exposure apparatus comprising: column 1 for irradiating an electron beam to wafer 10 serving as a sample; sample chamber 3 having vacuum pump 40 as a vacuum exhaustion unit for controlling the internal unit to a vacuum atmosphere; stage 4A arranged in the sample chamber 3 for holding and moving the wafer 10; and first mounting 5A for elastically supporting the column 1 with respect to the sample chamber 3.

A method of exposing images on a wafer having varying topography during lithographic production of microelectronic devices. The method initially includes determining topography of a wafer, dividing the wafer into two or more separate regions based on the wafer topography, and determining desired focus distance for exposing a desired image on each of the separate regions of the wafer. The method then includes exposing a desired image on one of the regions of the wafer at the desired focus distance while blocking remaining regions and exposing a desired image on another of the regions of the wafer at the desired focus distance while blocking remaining regions. The desired focus distance may be different for each of the separate wafer regions.

Automated film processing kiosk automatically receives and processes a customer film unit, e.g., a film cartridge or OTUC, and the finished prints can be picked up when processing is completed. The interior is climate controlled. The customer swipes a credit or debit card through a card reader, and inserts the exposed film unit into the kiosk. Inside the enclosure a mini-lab processor automatically processes the film, using either a wet or dry process, and extracts images from the film, either negatives, or else as digital images. A digital printer (i.e., color ink-jet printer) produces photographic prints of the customer's images and a print packaging unit packages and labels the photographic prints for each customer film unit, and an optional optical disk with digital images. A storage carousel within enclosure has chambers for storing the packaged prints for the customers. At pick-up, the customer swipes a card through for identification. A carousel unload mechanism transfers the customer's finished prints from the carousel to a delivery bin. A communications module communicates order status, inventory, and equipment status to a central monitoring station. Print correction for color, density, and contrast can be carried out remotely.