摘要:
A rangefinder apparatus includes an effective minimum value certifying unit for comparing a minimum value, exhibiting the smallest value in correlation values calculated for the each rangefinding area, with a reference value for a degree of correlation and certifying a minimum value smaller than the reference value as an effective minimum value, effective for a rangefinding calculation, a distance calculating unit for calculating the distance to the object according to the effective minimum value certified for each rangefinding area; and a correlation calculation restricting unit for omitting the correlation calculation within a specific distance range, farther by at least a predetermined amount than the shortest distance calculated according to the effective minimum value in the correlation calculation for a rangefinding area to be later subjected to the correlation calculation, when the effective minimum value exists in the rangefinding area earlier subjected to the correlation calculation.
摘要:
A position determining device for a control knob includes a relative position determiner and an absolute position determiner. The standard output data of the potentiometer corresponding to the rotational limits of the control knob is recorded in a ROM during manufacturing of the device. Since the device is activated until the potentiometer reaches one of the limits, the operating amount of the control knob is determined in accordance with absolute position data outputted from the potentiometer. When the potentiometer reaches one of the rotational limits of the control knob, the standard data corresponding to the rotational limits is read from the ROM and set as an initial value for the determination by the rotary encoder. Thereafter, the operated amount of the control knob is determined in accordance with relative position data outputted from the rotary encoder.
摘要:
This application provides an electronic endoscope system allowing an accurate delay time corresponding to a length of an electronic scope to be set and allowing a configuration to be simplified. The electronic endoscope system is configured by connecting electronic endoscopes different in length to a processor unit and provided with a reference-delay-time generation circuit for generating a signal having a rough reference delay time and a short-delay-time generation circuit for generating a signal having a delay time shorter than the reference delay time by using a gate delay device or the like. A microcomputer in the processor unit reads delay-time-designation control data D1 and D2 from a ROM in an electronic scope, generates a delay drive clock signal by the two delay-time generation circuits in accordance with the control data D1 and D2, and executes preferable image processing in accordance with the delay signal.
摘要:
In an exposure apparatus of the invention, for a spatial light modulator, each of a plurality of pixel portions fewer than the total number of the pixel portions is controlled with a control signal generated according to exposure information. Namely, a part of the pixel portions is controlled without controlling a whole of the pixel portions on the substrate. Thus, the number of pixels in the pixel portions is decreased, and transfer time of the control signal becomes short. This enables modulation speed of the laser beam to be increased and the high-speed exposure to be performed. An incorporated laser light source, in which the laser beams are incorporated and struck on the optical fiber, is preferable to the laser device. By adopting the incorporated laser light source, high brightness and high output can be obtained, and it is preferable to the exposure of the spatial light modulator. Since the fiber array is obtained with few optical fibers, it is low cost. Since the number of optical fibers is few, the light-emitting region is further decreased when the optical fibers are arrayed.
摘要:
An electronic endoscopic apparatus having various sorts of electronic endoscopes mounting a CCD with a different number of pixels, for example, 410,000 pixels, 270,000 pixels or 190,000 pixels that are connectable to a processor. A CCD drive and signal processing circuit drives all the CCDs at a frequency set up for the CCD with 410,000 pixels, and an information quantity conversion circuit expands an image acquired by the CCD with 270,000 pixels or 190,000 pixels by pixel interpolation in a horizontal direction or a vertical direction to form an image with an aspect ratio of 4 to 3. Also, a video signal acquired in an NTSC system is converted into a video signal of a PAL system by using a television standard conversion circuit, thereby displaying an excellent PAL video without any bar noise.
摘要:
A method including: dropping the ultraviolet-curable resin fluid onto the aspheric face of a metallic mold set horizontally, the aspheric face having a desired concave face; bringing a convex lens close to the metallic mold and stopping the movement of the lens just before it comes into contact with the ultraviolet-curable resin fluid; inclining the metallic mold and the lens together to cause the ultraviolet-curable resin fluid to flux; after bringing the convex face of the lens into point contact with this fluxed and swelled ultraviolet-curable resin fluid, moving the lens to a prescribed position relative to the metallic mold to place the ultraviolet-curable resin fluid between the lens and the metallic mold; returning the lens and the metallic mold together from the inclined state to the horizontal state, thereby irradiating the ultraviolet-curable resin fluid with ultraviolet rays to cure the resin fluid and form a molded resin layer.
摘要:
The present invention provides an optical element (or plastic molding) comprising an optically functional surface and a flange formed on the outer periphery thereof, and having on the flange outer peripheral surface a fitted portion inscribing on the inner peripheral surface of a lens-barrel and an adhering portion to be adhered to the lens-barrel by the adhesive filled in a concave groove of the lens-barrel, wherein a raised portion is formed on the flange surface inside the flange outer peripheral surface, whereby the adhesion area is enlarged, the adhesive capacity is increased, and a sufficient fitting area is secured, without the possibility of flow of the adhesive to the optically functional surface.
摘要:
A projection type image display apparatus comprises a light source unit; an integrator unit for mixing luminous fluxes emitted from the light source unit so as to homogenize their light quantity distribution; a curved mirror for bending the optical path of luminous fluxes, which are turned into uniform light by the integrator unit, toward a projection unit; and the projection unit for causing the luminous fluxes to carry image information and projecting these luminous fluxes onto a screen.
摘要:
In a method of analyzing a fringe image, a mask is provided to a gap for separating a plurality of fringe image regions from each other, a virtual fringe distribution is once rendered to the mask region so as to yield a single fringe image, a fringe analysis is carried out thereafter, and then data of the mask region is deleted, so that the separated independent regions have a phase relationship therebetween, whereby information of the object to be observed is obtained at a high speed.