Patent ID: 6492065
Filing Date: 2002-12-10
Classification: G02B,G02F

Abstract:
A method for producing a transmission-type hologram lens for obliquely receiving light having a specific wavelength and outputting the light at a desired angle, the method comprising the steps of:a first step for disposing an electron beam master in contact with and opposite to a hologram recording material formed on a glass substrate, the electron beam master being provided with an electron beam lattice generated by an electron beam; a second step for irradiating exposure light at a predetermined angle from the electron beam master side to form a fringe pattern inclined to a plane of the hologram recording material by an interference between 0 order light which advances straight and primary order light diffracted by the electron beam lattice; and a third step for performing heat development on the hologram recording material in which the fringe pattern is formed, the heat development causing a fringe rotation in which an inclination angle of the fringe pattern to the plane of the hologram recording material increases, wherein the predetermined angle in the second step predictively includes an additional angle for decreasing the inclination angle of the fringe pattern by an angle to be increased by the fringe rotation in the third step to cancel the fringe rotation and obtain a desired inclination angle of the fringe pattern after the heat development.