Abstract: In an imaging system having a variable magnification element, a controller for controlling magnification so as to achieve desirable image composition. An object image is projected onto a visual field of a camera view finder and divided into a number of small blocks. The distance to the image portion in each small block is detected by a multipoint range finder. Small blocks having the same detected distance, or small blocks whose distances differ by less than a predetermined threshold value, are grouped together into one or more medium block(s). An sight line detection sensor detects where, in the visual field of the view finder, a photographer's line of sight is directed. At least one medium block is selected as the final desired image to be photographed on the basis of the sight line determination.

Abstract: A portable screen assembly for use with a projector has a housing made up of a lower casing and an upper casing pivotally mounted on the lower casing to open or close the lower casing. The housing accommodates a roll rotatably mounted on the lower casing, a screen wound around the roll, a hanger bar to which one side of the screen is connected, and two extension robe assemblies having respective first ends pivotally mounted on the lower casing for movement between folded-down positions and erected positions generally perpendicular to each other. The hanger bar extends parallel to the roll in a spaced relationship when accommodated within the housing, while the two extension robe assemblies extend, when in the folded-down positions, in line with each other in a direction parallel to the roll and in a spaced relationship thereto. A bar clip is mounted on a second end of each of the extension robe assemblies.

Abstract: A semiconductor manufacturing apparatus having a vibration insulation apparatus with a damper for insulating floor vibrations is so designed that damping characteristics of a damper can be changed. Thus, a semiconductor manufacturing apparatus capable of preventing floor vibrations from being transmitted to the apparatus and efficiently attenuating vibrations generated by the apparatus can be provided.

Abstract: The present invention provides an image forming system having an original-stationary scanning mode and an original-through scanning mode characterized by control means for more shortening a sheet supply distance in the original-through scanning more than that in the original-stationary scanning mode.

Abstract: A method and apparatus for projecting multiple patches of full spectrum, rainbow colors to multiple, widely distributed locations is provided. The invention enables the display of such patches on a surface area toward which a source of light is directed, for example the walls and ceiling of a room from sunlight entering the room through a window in the room. The method and apparatus provide first for the refraction of the light from the source of light, and secondly for both the refraction and the reflection of the initially refracted light. The initially refracted light is projected onto a surface of the room as main multiple spectral patches; and the refracted-refracted light, and the reflected-refracted light are projected onto other surfaces of the room laterally of the main patches as additional spectral patches, creating in all, multiple spectral displays of full spectrum, rainbow colors nearly surrounding a viewer and changing in position and shapes with the movement of the sun or other light source.

Abstract: A focus detecting device for detecting the focus adjusted state of an imaging optical system with respect to an object body comprises first and second photoelectric element arrays each including a plurality of photoelectric elements arranged in one direction, a focus detecting optical system for forming first and second optical images of the body on or near the first and second arrays by first and second light beams passed through different first and second areas, respectively, of the exit pupil of the imaging optical system, the first array producing a series of first output signals having a distribution pattern associated with the illumination intensity distribution pattern of the first image, the second array producing a series of second output signals having a distribution pattern associated with the illumination intensity distribution pattern of the second image, focus detection means for producing a focus detection signal representative of the focus adjusted state of the imaging optical system, on the b

Abstract: To improve the responsiveness of an automatic focus adjustment camera in which focus adjustment of the photographic lens is performed based on the results of focus detection in multiple regions, defocus amounts of the photographic optical system in multiple focus detection regions are detected asynchronously and independently of one another in multiple focus detection regions that are established on the photographic screen of the photographic optical system. The value of the defocus amounts in the various focus detection regions are compensated at times T3, T5, T8 and T9 when the defocus amounts are detected in the various focus detection regions, or at preset time intervals W, and the final defocus amount is set from among these multiple compensated defocus amounts in order to drive the photographic optical system.

Abstract: The improved image forming apparatus first performs scan exposure on a light-sensitive material, then applies an image forming solvent to the exposed light-sensitive material, brings the light-sensitive material and an image-receiving material into a superposed relationship, and performs thermal development and transfer on the assembly to form an image on the receiving material. The apparatus is characterized by performing image formation with the temperature conditions for thermal development being held substantially constant whereas the other conditions for thermal development and transfer being preset in accordance with various combinations of the light-sensitive and image-receiving materials.

Abstract: An exposure apparatus is for illuminating a pattern on a mask by an illumination optical system to transfer the pattern on the mask onto a photosensitive substrate set on a stage through a projection optical system. The exposure apparatus comprises a first supply device for supplying an inert gas toward the photosensitive substrate substantially in parallel with the optical axis of the projection optical system in a space open to communicate with the atmosphere between the projection optical system and the photosensitive substrate, and a second supply device for supplying the inert gas to the space in a direction intersecting with the optical axis of the projection optical system so as to establish an inert gas atmosphere in the space together with the first supply device. The transfer is conducted in the inert gas atmosphere.

Abstract: In a camera controller using a CMOS-analog IC, a microcomputer, logarithmic compression type distance measuring and photometric circuits, each constituted by a CMOS device having a parasitic bipolar transistor having a p- or n-type well as a base and an n.sup.+ -type layer in the p-type well or p.sup.+ -type layer in the n-type well as an emitter, and the like are arranged on the same chip.

Abstract: A projection exposure apparatus comprising:an illumination, optical system for irradiating a mask with illumination light;a projection optical system for projecting an image of a pattern formed on the mask onto a substrate;an optical member for defining a light quantity distribution of the illumination light on a Fourier transform plane to the pattern on the mask in the illumination optical system or on a plane in the vicinity thereof such that the illumination light is intensified in a first region inside a substantial circle of radius r.sub.1 with the center on the optical axis of the illumination optical system and in a second region formed as a substantially annular zone bordered by a substantial circle of radius r.sub.2 and a substantial circle of radius r.sub.3 (where r.sub.1 .ltoreq.r.sub.2 <r.sub.

Abstract: A camera having a pointing aid emitter that is operable by the user to produce a output beam generally aligned with the optical axis of the camera objective lens such that the output beam illuminates an object in the scene includes a timer for inhibiting repetitious operation of the emitter to reduce the risk of damage to the object that is illuminated by the beam. In a preferred embodiment of a still camera, the operation of the emitter is initiated by partial depression of the camera image capture button so that the beam is emitted and terminated prior to camera shutter opening. The scene captured on full depression of the image capture button is not illuminated by the beam. After light emission and is halted by release of the image capture button or time out of a maximum emission time interval, further attempts to repeat the operation of the emitter are inhibited for a set time period.

Abstract: A uniform-brightness, high-gain projection screen is especially suited for reflecting radiation from a projector to a viewer who is spaced from the projector along a projection axis. The screen is formed with a plurality of reflective faces that each form at least a portion of a ring that is transverse to the projector axis, have different spacings from the projector and are axially tilted to set the projector-face angle equal to the viewer-face angle. The faces are preferably defined by a plurality of tiles that are bonded to the interior of a projection dome such as a flight simulator dome.

Abstract: A masking guide includes a plurality of masking frames each having a different peripheral dimension for positioning the frames concentrically one within another in a nested arrangement. Each masking frame has an aperture and the dimensions of the aperture vary from a base frame having an aperture of greatest dimension to an innermost masking frame having an aperture of the least dimension. The masking frames are positioned so that the dimensions of the apertures progressively decrease from the base frame to the innermost frame. The frames are pivotally connected one within another, permitting the frames to be raised and lowered relative to a proof. A photographic proof is positioned in underlying relation with the masking guide. The proof has a full print area which is exposed entirely through the aperture of the base frame. The remaining frames mask a selected portion of the full print area of the proof.

Abstract: A pocket infinite kaleidoscope has two opposed cylindrical cases each one with an internal mirror. Multiple circular colored flexible intertwined springs are adhered to the respective mirrors and a peephole is formed through one of the mirrors. The kaleidoscope is handled by an observer by displacing the cases by stretching the springs and looking through the peephole to create an amusing virtual image.

Abstract: A camera having a depth priority operation mode calculates a stop value and perform photography such that multiple objects at different distances all enter into the photographic depth of field. When the calculated stop value is less than the smallest possible stop value of a photographic lens attached to the camera, the photographic lens is driven so that the closest object is placed on the photographic lens side of the focal surface, when the closest object is focused into the photographic depth of field.

Abstract: A control strip holder having a light interrupting door opened and closed by the instruction of an external open-and-close instruction means is installed on the exposure table of an automatic printing and developing machine, which is provided with the open-and-close instruction means. The control strip is automatically drawn out from the holder, held onto the exposure table by air-suction and transferred to the developing unit. The control strip is drawn out by the holding force of the exposure table. As a structure for concentrating the holding force on the driving of the control strip, a mask plate is provided on the control strip holder to cover almost all the holding zone of the exposure table. The leading end of the control strip remaining outside the control strip holder is held on the exposure table by a force which is stronger than exerted on normal paper. Thus, the control strip is transferred to the developing unit through the outlet by the paper conveying belt of the exposure table.

Abstract: An automatic focusing camera having a strobe, a light source for emitting visible light having a first wavelength, a light source for emitting light having a second wavelength, and a lens. The visible light and the second wavelength light are transmitted through the lens, and projected towards an object to be photographed.

Abstract: A photolithography system includes a plurality of cantilevers, preferably formed in a silicon wafer. Each cantilever includes a tip located near the free end of the cantilever and a waveguide which extends along the length of the cantilever and intersects the tip. An aperture is formed at the apex of the tip so that light travelling through the waveguide may exit the tip. A light switch is included in the waveguide to control the passage of light to the tip of the cantilever.The array of cantilevers is positioned adjacent a wafer which is to be lithographed, in the manner of an atomic force microscope operating in the attractive mode. Each cantilever is a compound structure, including a thick portion and a thin portion, the latter having a preselected mechanical resonant frequency.

Abstract: An image recording apparatus having a light source which illuminates light to one of a reflection original image and a transparency original image, and an imaging lens system which uses the light reflected or transmitted from the original image after being emitted from the light source to form an image on a photosensitive surface of a photosensitive material. A plurality of light emitting diodes are used as the light source. Accordingly, controlling the current to the diodes allows control of a quantity of light without changing the color. It therefore becomes unnecessary to provide a diaphragm mechanism for the imaging lens system. As a result, the apparatus can be made small.