Abstract: Disclosed is a laser projector to display an image having a predetermined number of gradations by a combination of n division gradations, each being set with a maximum luminance, comprising: a storage section to store a luminance value of each of the gradations, and division signals being associated with each other, each of the division signals corresponding to an intensity of each of the division gradations, and the division gradations being combined with each other to represent the luminance value; a determination section to determine the division signal of each of the division gradations corresponding to the luminance value of each pixel which constitutes the image; and a signal output section to divide a display period of the each pixel into n intervals, and to sequentially output the division signal of each of the division gradations to a light source in a predetermined order, in each of the intervals.

Abstract: A laser projector includes a green laser, a two-wavelength laser, a PBS, a collimator lens, a two-axis galvanometer mirror, a group of lenses, and a screen. The green laser emits a green laser beam. The two-wavelength laser emits red and blue laser beams. The PBS is provided at the position where respective optical paths of laser beams emitted from respective lasers cross each other to cause these optical paths to coincide with each other.

Abstract: A system on a network provides estimated time of arrival information to a client located on the network. The system is adapted to present to the client pages for eliciting a product inquiry including a product number. The system receives the product inquiry, determines estimated time of arrivals for various destinations for at least one in-transit unit having the product number, and transmits to the client the estimated time of arrivals.

Abstract: The present invention aims to correct the spherical aberration and ensure the working distance and furthermore to obtain satisfactory recording and reproducing property by shaping the optical spot formed on the disc surface. A liquid crystal element for correcting spherical aberration includes diffraction electrodes for converting the light beam to a divergent light when reproducing a CD, and phase shift electrodes for providing a phase difference to the light beam when reproducing a BD. When reproducing a BD, voltage is applied to the diffraction electrodes as well as the phase shift electrodes to diverge the light beam and lower the light intensity of the central portion, thereby shaping the optical spot formed on the disc.

Abstract: An optical pickup device includes a beam shaping mirror. The mirror has a first optical surface on which a wavelength selection film and a diffraction grating are formed, and a second optical surface that is composed of a reflecting surface. The wavelength selection film passes a first laser beam and reflects a second laser beam. A light intensity distribution of the first laser beam is converted from an elliptic shape to a circular shape by operation in which the first laser beam which passes the wavelength selection film and is input to the beam shaping mirror, is reflected on the second optical surface, passes the wavelength selection film and is output from the mirror. The second laser beam is diverged by the diffraction grating. Directions of the first and second laser beams which are output from the mirror are made the same by diffraction of the second laser beam.

Abstract: An optical pickup device includes a beam shaping mirror. The mirror has a first optical surface on which a wavelength selection film is formed and a second optical surface on which a diffraction grating is formed. The wavelength selection film transmits a first laser beam and reflects a second laser beam. Light intensity distribution of the first laser beam is converted from an elliptic shape to a circular shape by reflecting the first laser beam transmitted by the wavelength selection film and input to the beam shaping mirror by the diffraction grating, then transmitting it by the wavelength selection film and outputting it from the beam shaping mirror. The diffraction grating diffracts the first laser beam in order that directions of the first and second laser beams which are output from the beam shaping mirror become the same.

Abstract: An optical pickup device in which light via a beam shaping mirror is input to an objective lens and the light is directed to an optical disc, includes a collimator lens which changes the light input to the beam shaping mirror into infinite system light and the beam shaping mirror includes a diffraction grating which changes the infinite system light into finite system light.

Abstract: An optical pickup device for reducing comma aberration, spherical aberration, and astigmatism while entering a beam light having an ideal intensity distribution to the objective lens is provided. In an optical pickup device for emitting beam lights having different wavelengths from light sources, transmitting the beam lights through a common collimator lens and an objective lens and irradiating the beam lights onto an optical disc, one of the beam lights is converted to an infinite light and exit from the collimator lens, and the other beam light is converted to a finite light and exit from the collimator.

Abstract: An optical pickup device includes a spherical aberration compensating element which can compensate the spherical aberration of a light beam for a BD or a CD, and a phase shift element which can compensate the spherical aberration of a light beam for a DVD. In the spherical aberration compensating element, a first region which can compensate the spherical aberration of a light beam for a CD by diffraction and diffusion, and a second region which is formed to surround the first region and can compensate the spherical aberration of a light beam for a BD by changing phase distribution, are formed. Functions of the first region and the second region can be electrically controlled in ON-OFF manner.

Abstract: A hard disk drive, which is mounted on a vehicle, includes a casing, a hard disk, a magnetic head, and a sealing device. The casing has a breathing hole. The hard disk is assembled in the casing. The magnetic head is assembled in the casing. The sealing device seals the breathing hole of the casing in accordance with external atmospheric pressure.

Abstract: A game machines has a back side display unit composed of reels for displaying back patterns, and a front side display unit composed of transparent EL panels for displaying overlapping patterns overlapping with the back patterns. The back side display unit and the front side display unit are disposed not to produce blind spot regions of the back patterns. The game machine can provide various overlapping patterns with good visibility and a high game selection capability to a player.

Abstract: An objective lens actuator is provided with an objective lens holder and a tilting coil that drives the objective lens holder in a tilting direction. The tilting coil is inclined with respect to the horizontal direction, so that a rotation center when the objective lens holder is driven in the tilting direction, is located on extension lines of sides that effectively contribute to driving the objective lens holder in the tilting direction by interaction between a magnetic field formed by a magnet and current that is supplied and flows in the coil among sides of the tilting coil.

Abstract: A game machines has a back side display unit composed of reels for displaying back patterns, and a front side display unit composed of transparent EL panels for displaying overlapping patterns overlapping with the back patterns. The back side display unit and the front side display unit are disposed not to produce blind spot regions of the back patterns. The game machine can provide various overlapping patterns with good visibility and a high game selection capability to a player.

Abstract: A game machines has a back side display unit composed of reels for displaying back patterns, and a front side display unit composed of transparent EL panels for displaying overlapping patterns overlapping with the back patterns. The back side display unit and the front side display unit are disposed not to produce blind spot regions of the back patterns. The game machine can provide various overlapping patterns with good visibility and a high game selection capability to a player.

Abstract: In an optical pickup apparatus, a collimator lens is rockably supported by edges of two protruding portions formed on opposing sides of a groove of an optical base. The collimator lens is urged against the edges of the two protruding portions by a leaf spring. The position in vertical direction of one end of the leaf spring is adjusted by a position adjustor. In this manner, a tilt angle of the collimator lens is adjusted. Therefore, astigmatism of the light spot can precisely be compensated for irrespective of variations among apparatuses to achieve an excellent light spot.

Abstract: A game machines has a back side display unit composed of reels for displaying back patterns, and a front side display unit composed of transparent EL panels for displaying overlapping patterns overlapping with the back patterns. The back side display unit and the front side display unit are disposed not to produce blind spot regions of the back patterns. The game machine can provide various overlapping patterns with good visibility and a high game selection capability to a player.

Abstract: A system on a network provides estimated time of arrival information to a client located on the network. The system is adapted to present to the client pages for eliciting a product inquiry including a product number. The system receives the product inquiry, determines estimated time of arrivals for various destinations for at least one in-transit unit having the product number, and transmits to the client the estimated time of arrivals.

Abstract: A display device is comprised of a main display panel, a transparent display panel that is disposed to cover the first display panel, and a control unit. The main display panel indicates a first information pattern, the transparent display panel indicates a second information pattern, and the control unit controls relative visibility of the main and transparent display panels to selectively indicate the first and second information patterns according to various vehicle conditions.

Abstract: A vehicle information supply system comprises user terminals and an information center connected to each other through a communication network. The information center stores maintenance management information of a user's vehicle in its user-divided database, and information regarding maintenance works provided by advertisement requestors in its advertisement requestor-divided database. The information center links the stored maintenance management information and the stored maintenance work information and extracts a maintenance work which is required by the user for the vehicle and corresponds to the required maintenance work. The information center transmits a message to a user terminal of the user to notify the time of next regular vehicle inspection along with information about an advertisement requester which provides the extracted maintenance service.

Abstract: A game machines has a back side display unit composed of reels for displaying back patterns, and a front side display unit composed of transparent EL panels for displaying overlapping patterns overlapping with the back patterns. The back side display unit and the front side display unit are disposed not to produce blind spot regions of the back patterns. The game machine can provide various overlapping patterns with good visibility and a high game selection capability to a player.