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第2光学素子
第2の光学素子
The first optical element (LS1) has a lower surface (T1) provided so as to face the surface of a substrate (P) and an upper surface (T2) provided so as to face the second optical element (LS2).
The projection optical system (PL) has a first optical element (LS1) closest to the image surface of the projection optical system (PL) and a second optical element (LS2) closest to the image surface next to the first optical element (LS1).
For the purpose of providing such objective optical element unit and optical pickup device, the cost is reduced by making a first optical element and a second optical element from a plastic, and aberration deterioration of a focusing spot due to temperature change and thickness difference of a protection substrate is suppressed by providing first to third phase structures, thereby forming an optimum focusing spot on the information recording surfaces of different optical information recording media.
The first optical element and the second optical element are bonded to each other with the half mirror therebetween, in a state wherein the first optical element main plane having the flat shape, and the second optical element main plane having the flat shape are facing each other.
This light deflection element is a light deflection element for deflecting incident light, and is provided with: a first optical element for deflecting the incident light; a second optical element for changing the deflection direction of outgoing light by changing a refractive index according to applied voltage; a first electrode provided on the first optical element side; a plurality of second electrodes provided on the second optical element side; and a control unit for controlling the voltage to be applied to the second optical element.
An optical element driver (1) includes a first optical element (2) movable in a light path direction extending along the light path at one position on the light path of a light beam, a second optical element (3) movable in an intersecting direction intersecting with the light path at another position and capable of changing over first and second states in which different optical characteristics are exhibited for the light beam when moved in the intersecting direction, and a shared driving means (4) for moving the first optical element in the light path direction and moving the second optical element in the intersecting direction.
This projection-type video display device comprises: a first optical element (2) which collects light from a light source; a second optical element (4) which causes light from the first optical element to achieve a light distribution of a uniform intensity; a relay lens (5) which transmits light from the second optical element; a first mirror (61) which reflects light from the relay lens; a second mirror (71) which reflects light from the first mirror; a reflecting video display element (8) which displays an image on the basis of a video signal and reflects light from the second mirror; and a projection lens (9) which projects light from the reflecting video display element.
The liquid crystal panel is comprised of a cell, a first polarizer set on one side of the cell, a second polarizer set on the other side of the cell, a first optical element set between the first polarizer and the cell, a second optical element set between the first optical element and the cell, wherein the first optical element is substantially optically negative uniaxial, and the second optical element shows a refractive ellipse of nx>nz>ny and is formed by one or more kinds of polycyclic compounds having -SO3M group and/or -COOM group (M represents a counter ion).
The second optical element (2) has an optical path correcting layer (9) for correcting the optical path of image light totally reflected by the total reflection surface of each rib of the first optical element (1) so as to cause the image light to go out substantially perpendicularly to the observation side.
A combination optical element of the present invention is provided with: a first optical element for condensing light from one direction on an illumination plane; and a second optical element for condensing light from a different direction.
In order to provide an optical element manufacturing method capable of molding optical elements with a high degree of precision, an optical element manufacturing method for producing optical elements that have opposing optical surfaces by means of a pair of molding dies that have molding surfaces for molding the optical elements is configured so that each molding die is provided with a molding surface for molding a first optical element and a molding surface for molding a second optical element, which is distinct from the molding surface for molding the first optical element and is used to adjust the relative positions of the pair of molding dies, and so that each molding die is used to perform a molding step in which the second optical element is molded, a measurement step in which the relative displacement of the opposing optical surfaces is determined on the basis of the transmitted wavefront aberration of the second optical element molded in the molding step, a relative position adjustment step in which the relative position of the pair of molding dies is adjusted on the basis of the relative displacement determined by the measurement step, and a second molding step in which the first optical element is molded using the molding die, the relative position of which has been adjusted by the relative position adjustment step.
The liquid crystal panel includes a liquid crystal cell, a first polarizer arranged at one side of the liquid crystal cell, a second polarizer arranged at the other side of the liquid crystal cell, a first optical element arranged between the liquid crystal cell and the first polarizer, a second optical element arranged between the liquid crystal cell and the first optical element, and a third optical element arranged between the liquid crystal cell and the second polarizer.
In order to provide an image-capturing device for improving recognition capabilities and reducing variation of each individual recognition capability, there is provided an image-capturing device having a first image-capturing element for receiving light passed through a first optical element and outputting an image processed as a reference image having a brightness value according to the intensity of the light; a second image-capturing element for receiving light passed through a second optical element and outputting an image processed as a reference image having a brightness value according to the strength of the light; a distance calculation means for calculating the distance image on the basis of the reference image and a comparison image; and a recognition means for recognizing an object on the basis of the distance image calculated using the distance calculation means, the optical element or the image-capturing element fulfilling at least one of the following conditions: the transmissivity of the first optical element is higher than that of the second optical element; the distortion of the first optical element is lower than that of the second optical element; the sensitivity characteristic of the first image-capturing element is greater than that of the second image-capturing element; and the noise of the first image-capturing element is less than that of the second image-capturing element.
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Synoniemen voor second optical element in het Engels