摘要:
A display device has a white point light source, a condenser lens, a liquid crystal display, and an imaging lens. The white point light source has a substantial conjugate relationship with a user's pupil that is located on the front surface of the user's eyeball. The liquid crystal display has a substantial conjugate relationship with the user's retina. The scattering plate is further provided to broaden the bundle width of the light at a location in the vicinity of the user's pupil.
摘要:
Maintenance performance is promoted and a vivid printed image is provided in an electrophotographic device capable of conducting color printing. Cartridges corresponding to different printing colors, each of which includes a photosensitive body, are stacked in a vertical direction. A recording sheet is fed along a sheet feeding path and brought into contact with the photosensitive bodies corresponding to the respective colors, and toner images of the respective printing colors are transferred on the recording sheet. A transfer belt for feeding the recording sheet is arranged in a front cover, and the transfer belt is exposed when the front cover is opened. Therefore, correcting a mis-feeding of the recording sheet is facilitated. Also, the respective cartridges are spaced apart such that optical paths are provided between the cartridges so that optical beams corresponding to the respective printing colors may be directly irradiated onto the corresponding photosensitive bodies. In addition, the cartridges and optical scanners are mounted on the device using materials having substantially the same coefficient of thermal expansion so that changes in the ambient temperature will not affect the relative positions of the scanners and the photosensitive bodies.
摘要:
The invention relates to an optical waveguide array producing method. The optical waveguide array producing method according to the invention uses an intermediate material forming process for forming an intermediate material of photoresist on a flat sheet, the intermediate material having projections formed in the shape of a predetermined pattern; a resist master forming process of forming a resist master by heating the intermediate material to thereby smooth the surfaces of the projections; an inverted mold forming process for forming an inverted mold having a surface shape that is the inverse of the resist master; a clad portion forming process, for forming a clad portion having grooves equal in sectional shape to the inverted mold, using the inverted mold and also using a first light-transmitting material of a low refractive index; a process for forming core portions by filling the grooves of the clad portion with a second light-transmitting material which is higher in refractive index than the first light-transmitting material; and a process of covering the core portions with a third light-transmitting material lower in refractive index than the first or the second light-transmitting material.
摘要:
A fixing device includes a fixing unit, a power controller, a pressure applying unit, and a timing controller. The fixing unit fixes toner onto a recording medium transported in a determined transport direction, by using heat generated by a heat generator. The power controller controls supply of power for heating the fixing unit. The pressure applying unit applies pressure to the recording medium in a nip part formed between the pressure applying unit and the fixing unit. The timing controller controls the power controller to start supply of the power at a time which is a determined time period prior to an arrival time at which a leading edge of the recording medium in the transport direction arrives at the nip part.
摘要:
An apparatus is disclosed for projecting patterned electromagnetic waves onto an object. This apparatus includes: an electromagnetic-wave source; a modulating element allowing at least part of an electromagnetic wave incoming from the source to be modulated; and a selector for allowing a selected one of angular components of an electromagnetic wave outgoing from the modulating element, to pass through the selector. The modulating element is shaped to include at least one pair of two portions having different surface shapes. One of the two portions allows one of the angular components which has a radiant angle characteristic that achieves a predetermined entrance numerical aperture, to go out as a component which will be selected by the selector. The other allows one of the angular components which has a radiant angle characteristic that does not achieve the entrance numerical aperture, to go out as a component which will not be selected by the selector.
摘要:
A three-dimensional shape and color detecting apparatus that detects a three-dimensional shape of an object and a color thereof is provided with an illuminating system that emits light to illuminate the object, and a light receiving device that receives a reflected component of the light from the object. In this structure, the illuminating system is configured to emit the light from a surface having a predetermined area to the object.
摘要:
An image forming machine includes an exposure unit and a pressure development unit for forming an image on a microcapsule coated sheet. The exposure unit includes a plurality of light emitting elements, a substrate having reflective recesses formed in the surface thereof, the plurality of light emitting elements being disposed in the recesses, and a mask having openings formed opposite the plurality of light emitting elements. The reflective recess prevents light from the light emitting element from exiting through the pinhole other than the pinhole opposed to that light emitting element, thus improving the efficiency of utilization of exposure light. A partition may be provided between the light emitting elements.
摘要:
The invention relates to an optical microlens array producing method. The microlens array producing method according to the invention uses an intermediate material forming process for forming an intermediate material of photoresist on a flat sheet, the intermediate material having projections formed in the shape of a predetermined pattern; a resist master forming process of forming a resist master by heating the intermediate material to thereby smooth the surfaces of the projections; an inverted mold forming process for forming an inverted mold having a surface shape that is the inverse of the resist master; a clad portion forming process, for forming a clad portion having grooves equal in sectional shape to the inverted mold, using the inverted mold and also using a first light-transmitting material of a low refractive index; a process for forming microlenses by filling the concave portion of the clad portion with a second light-transmitting material which is higher in refractive index than the first light-transmitting material microlens with index than the first or the second light-transmitting.
摘要:
An optical scanning device comprising a light source for emitting a light beam on the basis of the image information, an optical waveguide array including plural optical waveguides each comprising a core portion formed at the center portion thereof for guiding the light beam from the light source therealong and a cladding portion formed so as to surround the core portion and each having a light incident end for receiving the light beam from the light source and a light emitting end for emitting the light beam guided along the core portion, and a polygonal mirror for successively distributing the light beam having the image information to each of the light incident ends of the optical waveguides in a spot form. The optical waveguides are arranged in such a manner that an interval between centers of neighboring cores is smaller than a spot diameter of the light beam incident to the light incident end of each of the optical waveguides.
摘要:
A fixing device includes a fixing member including a heat generating layer that generates heat by induction, the fixing member fixing images onto plural recording media that are successively supplied thereto with heat generated from the heat generating layer; a pressure member that contacts the fixing member and forms a nip between the pressure member and the fixing member, the nip allowing the recording media to pass therethrough; an induction heating unit that inductively heats the heat generating layer of the fixing member; and a controller that controls a manner in which the induction heating unit heats the heat generating layer when the plural recording media successively pass through the nip in accordance with a total of times during which the recording media are not present in the nip, the total of times being measured from when the recording media started passing through the nip.