Abstract: A method of manufacturing an optical element including, a first step of, after affixing a hologram forming material to a glass substrate having a marking portion, performing interference exposure on the hologram forming material, thereby forming a hologram layer at the glass substrate, and a second step of affixing the hologram layer peeled off from the glass substrate to a plastic substrate having a first alignment mark, wherein in the second step, the first alignment mark on the plastic substrate, and a second alignment mark formed at a position corresponding to the marking portion in the hologram layer during the interference exposure are used to implement positioning of the plastic substrate and the hologram layer.

Abstract: A diffraction optical member includes a first substrate having moisture permeability, a first dielectric film provided at one surface of the first substrate, a hologram element provided at the first dielectric film, a second substrate provided facing the hologram element, and an adhesive member configured to adhere the first substrate to the second substrate to form an accommodation space that accommodates the hologram element.

Abstract: A diffractive optical element according to the invention includes a holographic element configured to deflect incident light, a first substrate provided on one surface side of the holographic element, a first dielectric film provided between the first substrate and the holographic element, a second dielectric film provided on another surface side of the holographic element, and a third dielectric film provided on a side surface side of the holographic element.

Abstract: A display module of the present disclosure includes a display module main body and a housing. The display module main body includes a first, a second display element, and a prism. The housing includes a first, and a second frame. The first frame holds the first display element in a state in which the prism is positioned between a first and a second plate portion, and in which a third plate portion is in contact with the first display element and faces a first surface, and the second frame holds the second display element in a state in which the prism is positioned between a fourth and a fifth plate portion, and in which a sixth plate portion is in contact with the second display element and faces a second surface.

Abstract: An optical module according to the present disclosure includes a cross dichroic prism, a first display panel, a second display panel, a third display panel, a first adhesive layer configured to bond the first display panel to the cross dichroic prism, a second adhesive layer configured to bond the second display panel to the cross dichroic prism, and a third adhesive layer configured to bond the third display panel to the cross dichroic prism. At least one of the first adhesive layer, the second adhesive layer, and the third adhesive layer includes a spacer member.

Abstract: A method for manufacturing an optical element according to the present disclosure includes, a first step of, after affixing a hologram forming material to a glass substrate having a marking portion, performing interference exposure on the hologram forming material, thereby forming a hologram layer at the glass substrate, and a second step of affixing the hologram layer peeled off from the glass substrate to a plastic substrate having a first alignment mark, wherein in the second step, the first alignment mark on the plastic substrate, and a second alignment mark formed at a position corresponding to the marking portion in the hologram layer during the interference exposure are used to implement positioning of the plastic substrate and the hologram layer.

Abstract: A display module of the present disclosure includes a display module main body and a housing. The display module main body includes a first, a second display element, and a prism. The housing includes a first, and a second frame. The first frame holds the first display element in a state in which the prism is positioned between a first and a second plate portion, and in which a third plate portion is in contact with the first display element and faces a first surface, and the second frame holds the second display element in a state in which the prism is positioned between a fourth and a fifth plate portion, and in which a sixth plate portion is in contact with the second display element and faces a second surface.

Abstract: An optical module according to the present disclosure includes a cross dichroic prism, a first display panel, a second display panel, a third display panel, a first adhesive layer configured to bond the first display panel to the cross dichroic prism, a second adhesive layer configured to bond the second display panel to the cross dichroic prism, and a third adhesive layer configured to bond the third display panel to the cross dichroic prism. At least one of the first adhesive layer, the second adhesive layer, and the third adhesive layer includes a spacer member.

Abstract: A light-guiding device used in a display device includes a plurality of first half mirrors between a first light-guiding body and a second light-guiding body. Each of the first half mirrors is formed on a first surface extending along a first direction of the first surface and a second surface extending along a second direction in the first light-guiding body. The first light-guiding body includes a third surface overlapping the second surface in a direction along a third direction in which two first surfaces located on both sides of the second surface do not overlap each other between the first surface and the second surface. The third surface extends in a direction different from the first direction.

Abstract: A diffractive optical element according to the invention includes a holographic element configured to deflect incident light, a first substrate provided on one surface side of the holographic element, a first dielectric film provided between the first substrate and the holographic element, a second dielectric film provided on another surface side of the holographic element, and a third dielectric film provided on a side surface side of the holographic element.

Abstract: A light-guiding device used in a display device includes a plurality of first half mirrors between a first light-guiding body and a second light-guiding body. Each of the first half mirrors is formed on a first surface extending along a first direction of the first surface and a second surface extending along a second direction in the first light-guiding body. The first light-guiding body includes a third surface overlapping the second surface in a direction along a third direction in which two first surfaces located on both sides of the second surface do not overlap each other between the first surface and the second surface. The third surface extends in a direction different from the first direction.

Abstract: An optical element includes a light guide plate and a first light transmitting material disposed to be in contact with a first surface of the light guide plate. The light guide plate has a second surface opposite to the first surface. The light guide plate includes a first part and a second part made of a light transmissive material, and a transflective layer disposed between the first part and the second part. The transflective layer is disposed to be inclined with respect to the first surface and the second surface and to extend from the first surface to the second surface. The first surface has a non-flatness portion. The non-flatness portion of the first surface is covered with the first light transmitting material. A surface of the first light transmitting material that is opposite to a surface that is in contact with the first surface is flat.

Abstract: An optical element includes a light guide plate that has therein a light transmissive flat plate member on which a transflective layer is formed, and a layer of a light transmissive adhesive or a light transmissive resin layer that uniformly covers the light guide plate. The refractive index of the layer of the adhesive or the resin layer is set to a refractive index different from that of the light guide plate. A first surface of the layer of the adhesive or the resin layer that is on the light exit surface side of the light guide plate is kept parallel with a second surface of the layer of the adhesive or the resin layer that is on the opposite side to the light exit surface side of the light guide plate.

Abstract: An optical element includes a light guide plate that has therein a light transmissive flat plate member on which a transflective layer is formed, and a layer of a light transmissive adhesive or a light transmissive resin layer that uniformly covers the light guide plate. The refractive index of the layer of the adhesive or the resin layer is set to a refractive index different from that of the light guide plate. A first surface of the layer of the adhesive or the resin layer that is on the light exit surface side of the light guide plate is kept parallel with a second surface of the layer of the adhesive or the resin layer that is on the opposite side to the light exit surface side of the light guide plate.

Abstract: There is provided a light-emitting apparatus formed by attaching a device substrate where light-emitting device is formed and a sealing substrate which seals the device substrate through a sealing material and sealing the light-emitting device between the device substrate and the sealing substrate through the sealing material, wherein the sealing material includes a first sealing material and a second sealing material, wherein the first sealing material is formed to surround the light-emitting device between the device substrate and the sealing substrate and to have a sealing hole portion formed by not disposing the first sealing material, so that the first sealing material is discontinuous, wherein the sealing hole portion of the first sealing material is closed with the second sealing material, so that the second sealing material and the first sealing material constitute a ring-shaped sealing member, and wherein the first sealing material is provided with guide portions which are formed to be continuous wit

Abstract: There is provided a light-emitting apparatus formed by attaching a device substrate where light-emitting device is formed and a sealing substrate which seals the device substrate through a sealing material and sealing the light-emitting device between the device substrate and the sealing substrate through the sealing material, wherein the sealing material includes a first sealing material and a second sealing material, wherein the first sealing material is formed to surround the light-emitting device between the device substrate and the sealing substrate and to have a sealing hole portion formed by not disposing the first sealing material, so that the first sealing material is discontinuous, wherein the sealing hole portion of the first sealing material is closed with the second sealing material, so that the second sealing material and the first sealing material constitute a ring-shaped sealing member, and wherein the first sealing material is provided with guide portions which are formed to be continuous wit