摘要:
A styrylcoumarin compound jointing a styryl group by - (C = C)n - portion and having -NR, R 2 group, wherein n is an integer of 2 to 4, and each R is a proton or an alkyl group having 1 to 10 carbon atoms. A photopolymerizable composition comprises the styrylcoumarin compound as a photosensitizer, a polymerization initiator and a polymerizable compound. A photocrosslinking composition comprises the styrylcoumarin compound as a photosensitizer, a crosslinking agent and a polymerizable compound. A volume phase hologram recording medium which comprises the styrylcoumarin compound, a crosslinking agent and a polymer comprising a carbazole.
摘要:
A photo-crosslinkable resin composition comprises (a) a polymer having an electron-donating group in a monomer unit, (b) a halogen compound and (c) at least one sensitizer selected from the group consisting of coumarin derivatives, rhodanine derivatives, thioxanthene derivatives and unsaturated ketone compounds. The composition can be used as a hologram recording medium.
摘要:
This invention provides an off-axis type hologram lens and a display apparatus using the same, which can satisfactorily correct aberrations caused by an off-axis arrangement of a hologram lens and an eclipse of a displayed image by a pupil of an observer by properly setting an arrangement of the off-axis type hologram lens, so that image information from an image display and another image information are spatially superposed on each other, and the superposed images can be observed in an observation field at a uniform brightness.
摘要:
This invention relates to an image display apparatus capable of displaying a high-definition image. An image display apparatus of this invention is characterized in that light beams from a plurality of image display elements (1) are displayed as continuous single image information via a hologram optical element (2). An image display apparatus of this invention is characterized by including a plurality of image display elements respectively assigned to different partial image information regions of an image to be displayed, and a hologram optical element for diffracting a plurality of light beams from the plurality of image display elements, and displaying the diffracted light beams as continuous single image information. An image display apparatus is also characterized by including a plurality of image display elements, each of the image display elements having a large number of pixels, and a hologram optical element for forming a synthesized image by diffracting a plurality of image light beams from the image display elements, wherein the hologram optical element diffracts the plurality of image light beams so as to display a synthesized image by interpolating information between pixels of a plurality of images to be synthesized.
摘要:
This invention provides an off-axis type hologram lens and a display apparatus using the same, which can satisfactorily correct aberrations caused by an off-axis arrangement of a hologram lens and an eclipse of a displayed image by a pupil of an observer by properly setting an arrangement of the off-axis type hologram lens, so that image information from an image display and another image information are spatially superposed on each other, and the superposed images can be observed in an observation field at a uniform brightness.
摘要:
The present invention relates to scanned image displaying apparatus and a method using this apparatus. The apparatus comprises an image displaying element, provided for each of right and left eyes and a virtual image moving element for moving at least one of the virtual images for the right and left eyes in a horizontal direction. The image displaying element has an illuminating element for emitting light, a display unit for displaying an image by using the light from the illuminating element. The image displaying element also has an optical system for projecting the light from the display unit toward a pupil of a viewer and, as a result, forming virtual images of the image to be displayed on the display unit in front of the pupil.