Abstract: Provided is a scanning endoscope including: an insertion portion that has a distal-end section and a proximal-end section; a light-guide optical system that guides illumination light toward the distal-end section; a spherical lens that is disposed in the distal-end section and that radiates the illumination light guided by the light-guide optical system onto a subject; an optical waveguide that extends from the distal-end section to the proximal-end section, that receives observation light coming from the subject, and that guides the observation light; and a light detector that detects the observation light guided by the optical waveguide, wherein the optical waveguide is inclined, at the distal-end section, in such a direction as to approach an optical axis of the spherical lens toward a distal end.

Abstract: A scanning endoscope includes: an optical fiber for illumination including an incidence side to which illumination light enters and an irradiate side from which the illumination light is irradiated, and configured to irradiate an object from the irradiation side with the illumination light; a holder configured to hold the optical fiber; a plurality of drive elements arranged so as to make the optical fiber swing between the irradiation side and the holder, and configured to make the optical fiber swing according to a drive signal; and a cylinder made of metal, and securing the optical fiber and the plurality of drive elements, wherein the cylinder is electrically connected to a ground potential.

Abstract: The illumination apparatus includes a first light source and a second light source configured to generate light in wavelength bands required for at least two illumination modes; a dichroic mirror configured to transmit light in a predetermined band from the first light source, to transmit light in the predetermined band from the second light source while reflecting light that is outside the predetermined band in the direction of the optical axis of light from the first light source, and to combine the light from the first light source and the light from the second light source; and a control unit configured to control the illumination states of the first light source and the second light source.

Abstract: The illumination apparatus includes a first light source and a second light source configured to generate light in wavelength bands required for at least two illumination modes; a dichroic mirror configured to transmit light in a predetermined band from the first light source, to reflect light from the second light source outside the predetermined band in the direction of the optical axis of light from the first light source, and to combine the light from the first light source and the light from the second light source; and a control unit configured to control the illumination states of the first light source and the second light source.

Abstract: An object is to provide an endoscope system that is capable of cooling photoelectric conversion devices provided in an inserted portion while suppressing an increase in an outer diameter of the inserted portion. An endoscope system employed includes a long, thin inserted portion; photoelectric conversion devices that are mounted at a distal end of the inserted portion; a fluid-feed channel that is provided in the inserted portion and that has a fluid-feed port which opens at the distal end of the inserted portion; a radiator that is connected to an intermediate position of the fluid-feed channel and that is provided in a manner enabling heat exchange with the photoelectric conversion devices; and a fluid-supply-direction switching portion that switches a supply direction of cooling fluid fed by the fluid-feed channel to the fluid-feed port side or to the radiator side.

Abstract: An image projector projects images according to inputted image data. A light source unit has at least a plurality of LED light sources configured as a single unit for emitting an illumination. A space modulation element is modulated according to inputted image data. An illumination optical unit leads the illumination light emitted from the light source unit, and illuminates the space modulation element. A projection optical unit projects an image illuminated by the illumination optical unit and modulated by the space modulation element. The light source unit is configured removably from the image projector.

Abstract: In discharge recovery processing, a continuous sheet 23 is moved from a facing position facing a head portion 21 to a first position (in the down direction in the drawing) as an evacuating position in the discharge recovery processing, thereafter, a discharge recovery processing unit 22 in the standby mode at a second position (in the up direction in the drawing) different from the facing position is moved to the facing position, and the discharge recovery processing is performed. In the discharge recovery processing, the head unit 21 is not moved and therefore the preferable positional reproducibility is obtained after ending the discharge recovery processing.

Abstract: An illumination apparatus comprises a plurality of luminous bodies as light sources, luminous body drive portions configured to drive to light each of the plurality of luminous bodies, an optical member configured to lead and apply light exiting from a luminous body lighted by the luminous body drive portion to an illumination target area, a light control member configured to perform change of a light path of the light exiting from the luminous body with which the illumination target area is illuminated and/or movement of the luminous body, a movable portion configured to operably drive the light control member, and a light selection portion configured to control the movable portion and/or the luminous body drive portion in such a manner that light with which the illumination target area is selected from light exiting from the plurality of luminous bodies.

Abstract: A projector comprises a light source, an optical system for illumination, a reflective light modulating device having a plurality of reflective elements arranged in matrix form to be illuminated by the light emitted from the optical system for illumination, and an optical system for projection. The optical system for projection includes a reflective surface configured to bend a projection chief ray reflected at the center of the reflective light modulating device among projection chief rays in the optical system for projection. The reflective surface has a predetermined angle to the ray which is emitted from the optical system for illumination and which strikes the center of the reflective light modulating device, and includes a P shaft parallel to one of an X axis and a Y axis along which the plurality of reflective elements is arranged.

Abstract: An illumination apparatus comprises a plurality of luminous bodies as light sources, luminous body drive portions configured to drive to light each of the plurality of luminous bodies, an optical member configured to lead and apply light exiting from a luminous body lighted by the luminous body drive portion to an illumination target area, a light control member configured to perform change of a light path of the light exiting from the luminous body with which the illumination target area is illuminated and/or movement of the luminous body, a movable portion configured to operably drive the light control member, and a light selection portion configured to control the movable portion and/or the luminous body drive portion in such a manner that light with which the illumination target area is selected from light exiting from the plurality of luminous bodies.

Abstract: A light emitting apparatus has a light source unit having a light source portion which is arranged on a circumference of a circle, and emits light, a light leading unit which has a light entering end into which the light emitted by the light source unit is entered, and a light emitting end from which the light, which is sent from the light entering end and is reflected by an inner surface, is emitted, a driving unit for rotating the light leading unit around a rotation axis which passes through a center of the circumference of the circle, and is made orthogonal to a surface including the circumference of the circle, and a cover portion which covers at least a part of the light leading unit, and decreases a reaction which is given from a surrounding atmosphere according to a rotation of the light leading unit.

Abstract: An image projector projects images according to inputted image data. A light source unit has at least a plurality of LED light sources configured as a single unit for emitting an illumination. A space modulation element is modulated according to inputted image data. An illumination optical unit leads the illumination light emitted from the light source unit, and illuminates the space modulation element. A projection optical unit projects an image illuminated by the illumination optical unit and modulated by the space modulation element. The light source unit is configured removably from the image projector.

Abstract: A printer system includes a host computer, K, C, M, and Y printer elements for four colors, a paper feeding section, and a head cleaning section. The printer elements each include a head controller and print head groups. The head controllers are connected to the host computer via SCSI interfaces in a daisy chain. When printing, the host computer transfers information, such as an image-printing region, image-printing data, to the head controllers via the SCSI interfaces, thereby executing image printing. The printer system can control a large number of print heads with a simple configuration and also can perform high-accuracy image printing.

Abstract: An illumination apparatus comprises a plurality of luminous bodies as light sources, luminous body drive portions configured to drive to light each of the plurality of luminous bodies, an optical member configured to lead and apply light exiting from a luminous body lighted by the luminous body drive portion to an illumination target area, a light control member configured to perform change of a light path of the light exiting from the luminous body with which the illumination target area is illuminated and/or movement of the luminous body, a movable portion configured to operably drive the light control member, and a light selection portion configured to control the movable portion and/or the luminous body drive portion in such a manner that light with which the illumination target area is selected from light exiting from the plurality of luminous bodies.

Abstract: A projector apparatus to project an image observable by an observer, comprises: a projector projection unit including at least a projection optical system; a projector base unit which is pivotally coupled to the projector projection unit and which is disposed in contact with a mounting surface; and a pivot mechanism configured to pivot the projector projection unit to a storage position and a projecting position. The projector apparatus further comprises a characteristic changing portion configured to vary at least one of electric characteristics and mechanical characteristics of the projector apparatus in accordance with a position of the projector projection unit pivoted by the pivot mechanism.

Abstract: A projector comprises a light source, an optical system for illumination, a reflective light modulating device having a plurality of reflective elements arranged in matrix form to be illuminated by the light emitted from the optical system for illumination, and an optical system for projection. The optical system for projection includes a reflective surface configured to bend a projection chief ray reflected at the center of the reflective light modulating device among projection chief rays in the optical system for projection. The reflective surface has a predetermined angle to the ray which is emitted from the optical system for illumination and which strikes the center of the reflective light modulating device, and includes a P shaft parallel to one of an X axis and a Y axis along which the plurality of reflective elements is arranged.

Abstract: In discharge recovery processing, a continuous sheet 23 is moved from a facing position facing a head portion 21 to a first position (in the down direction in the drawing) as an evacuating position in the discharge recovery processing, thereafter, a discharge recovery processing unit 22 in the standby mode at a second position (in the up direction in the drawing) different from the facing position is moved to the facing position, and the discharge recovery processing is performed. In the discharge recovery processing, the head unit 21 is not moved and therefore the preferable positional reproducibility is obtained after ending the discharge recovery processing.

Abstract: A recovery device for an ink jet printer includes a recovery unit having a wiper and a cap. When performing recovery processing, the recovery unit is inserted into a lower portion of a print head. The wiper moves along the +Y direction above the cap in a retreated state, and wipes the ink discharge surface of the print head. Also, in a state where the wiper is retreated outside the moving locus of the cap, the cap moves upward and caps the ink discharge surface of the print head. In this capping state, discharging and sucking of ink are performed for cleaning. This recovery device for an ink jet printer has a simple structure, and allows the suction of discharged ink during recovery processing to be efficiently performed. Furthermore, the present recovery device has a smaller space required for placement, thereby enabling the size-reduction of a printer apparatus.

Abstract: An illumination apparatus comprises an illuminant configured to radiate diffused light from an outgoing plane and a light guiding member. The light guiding member includes an incident end which is close to the outgoing plane of the illuminant and on which the diffused light is incident, an outgoing end from which the incident light which was incident on the incident end is emitted, and which has an area larger than that of the incident end, and a tapered portion which is positioned between the incident end and the outgoing end, and which has a tapered reflective surface transmitting the incident light to the outgoing end while reflecting the incident light. The illumination apparatus further comprises a holding member configured to integrally hold the illuminant and the light guiding member.

Abstract: A printer system includes a host computer, K, C, M, and Y printer elements for four colors, a paper feeding section, and a head cleaning section. The printer elements each include a head controller and print head groups. The head controllers are connected to the host computer via SCSI interfaces in a daisy chain. When printing, the host computer transfers information, such as an image-printing region, image-printing data, to the head controllers via the SCSI interfaces, thereby executing image printing. The printer system can control a large number of print heads with a simple configuration and also can perform high-accuracy image printing.