摘要:
A method for manufacturing an optical element in which a display quality of a projection image is improved is provided. The method is for manufacturing an optical element having a polarization plate of which one side a transmissive member is bonded. The method includes preparing a light source, a polarization plate, a transmissive member, a certificating polarization plate and a spectrophotometer; arranging the polarization plate, the transmissive member, and the certificating polarization plate between the light source and the spectrophotometer; measuring a light transmittance spectrum of a predetermined wavelength at each rotational position of the transmissive member; determining the rotational position of the transmissive member that yields a smallest value for a difference between a maximum value and a minim value of the light transmittance spectrum; and bonding the transmissive member to the polarization plate at the determined rotational position.
摘要:
An optical device includes a polarizer having a polarizing layer, a first light-transmissive substrate bonded on one surface of the polarizing layer of the polarizer, and a second light-transmissive substrate bonded on the other surface of the polarizing layer of the polarizer. The first light-transmissive substrate and the second light-transmissive substrate are made of an inorganic material.
摘要:
A light source device which can prevent deterioration of a polarization rotation element and an adhesive for bonding the polarization rotation element is to be provided. A light source device includes a polarization separation element obtaining first polarization and second polarization by separation and a polarization rotation element converting a polarization component aligned in a second polarization direction into a polarization component aligned in a first polarization direction.
摘要:
A projector according to an embodiment of the invention includes a first light source adapted to emit a light including a first colored light, a second light source adapted to emit a light including a second colored light and a third colored light, a color separation section to which the lights emitted from the respective light sources are input, and adapted to separate the incident lights into a first colored light, a second colored light, and a third colored light, liquid crystal light valves (first through third light modulation elements), and a relay optical system (a light transmission section) including a plurality of optical elements disposed between the color separation section and the first light modulation element.
摘要:
Aspects of the invention can provide a polarization member that can include a reflection type polarization element that transmits, of an incident light, a linear polarization component in a specific direction and reflects components other than the linear polarization component in the specific direction, and a return light splitting prism having a light incident surface on which the incident light goes incident, a light exiting surface disposed at a specific tilting angle with respect to the light incident surface, and a light discharge surface from which a return light that is reflected on the reflection type polarization element provided to the light exiting surface and enters inside by way of the light exiting surface, can be discharged in a direction that crosses neither an optical path of the incident light that goes incident on the light incident surface nor an optical path of a light that has passed through the reflection type polarization element. The light discharge surface can include a light transmission region surface, on which, of return lights entering inside by way of the light exiting surface, lights that have been reflected different numbers of times on one of the light incident surface and the light reflection type polarization element or on both, go incident at almost a same angle of incidence in opposite tilting directions to pass through.
摘要:
An optical device is provided which includes a plurality of optical modulation devices, plurality of optical elements, and a prism having a plurality of luminous flux incidence surfaces positioned on a luminous flux irradiation-side of each optical element. The optical device includes a holding member which holds at least one of the plurality of optical modulation devices and a pair of light-transmissive substrates. In one implementation, an irradiation-side substrate disposed on the luminous flux irradiation-side of the optical element has a dimension larger than that of the optical element, and the irradiation-side substrate is secured to the luminous flux incidence surface of the prism, an aperture is formed in the holding member, and the holding member is attached to the irradiation-side substrate so as to cover the optical element. Detailed information is provided in the Description of Exemplary Embodiments below, and the inventions are defined by the appended claims.
摘要:
A projector includes: an optical modulator including a liquid crystal cell, a first optical element formed of an optical material having positive uniaxiality, a second optical element formed of an optical material having positive uniaxiality, a third optical element including at least one optical film formed of optical material having a refractive index anisotropy, and a pair of polarization elements; an adjustment mechanism that can adjust an optical azimuth of a first group, having at least one of the first optical element, second optical element, and at least one optical film included in the third optical element, with respect to a fixed optical azimuth of a second group as a remainder excluding the element included in the first group among the first to third optical elements; a light source generating light for illuminating the optical modulator; and a projection optical system projecting the light passed through the optical modulator.
摘要:
An optical device is provided which includes a plurality of optical modulation devices, a plurality of optical elements, and a prism having a plurality of luminous flux incidence surfaces positioned on a luminous flux irradiation-side of each optical element. The optical device includes a holding member which holds at least one of the plurality of optical modulation devices and a pair of light-transmissive substrates. In one implementation, an irradiation-side substrate disposed on the luminous flux irradiation-side of the optical element has a dimension larger than that of the optical element, and the irradiation-side substrate is secured to the luminous flux incidence surface of the prism, an aperture is formed in the holding member, and the holding member is attached to the irradiation-side substrate so as to cover the optical element.
摘要:
A projector includes: a light source device; a light modulation device adapted to modulate a light beam emitted from the light source device; a light transmissive substrate adapted to transmit the light beam modulated by the light modulation device; and a projection optical device adapted to project the light beam transmitted through the light transmissive substrate, wherein the light modulation device includes a first light modulation unit having a plurality of pixels arranged, the pixels having colors different from each other, and the light transmissive substrate is disposed so as to be tilted with respect to an imaginary plane perpendicular to a light axis of the light beam modulated by the first light modulation unit.
摘要:
A liquid crystal projector includes: an illumination system; a liquid crystal optical element; an inorganic polarizer arranged on the emission side of the liquid crystal optical element; and a projection system arranged on the emission side of the inorganic polarizer, the inorganic polarizer includes a substrate, a plurality of reflective layers arranged on the substrate, a dielectric layer formed on each reflective layer, and an inorganic particulate layer formed on the dielectric layer to be shifted in a first direction from a center line that bisects the corresponding reflective layer in a short-side direction, at least one of a optical axis of the illumination system and a optical axis of the projection system is shifted with respect to a center axis of the liquid crystal optical element.