An optical device displaying an image of a blind spot includes a blind spot-side outward mirror disposed on a blind spot-side of a line of sight with respect to an obstacle; a blind spot-side inward mirror disposed to face the blind spot-side outward minor; an eye point-side inward mirror disposed on an eye point-side of the line of sight with respect to the obstacle; and an eye point-side outward minor disposed to face the eye point-side inward mirror. Each of the blind spot-side inward mirror and the eye point-side inward mirror has a plurality of reflection surfaces, and the reflection surfaces are arranged in parallel with each other and arranged at positions where the reflection surfaces partially overlap with each other.

An apparatus for monitoring the blind spot of a motor vehicle has a mirror assembly with at least one mirror element that can be moved using an actuator, and a microphone assembly. The microphone assembly is designed to determine the sound direction, and the movable mirror element is in the form of a sound reflector.

A side view mirror assembly for use by an operator of an vehicle including a mirror housing mounted to an outer surface of the vehicle, a side view mirror including a reflective surface, the side view mirror being mounted in the mirror housing so that the side view mirror reflects items disposed rearwardly of the vehicle, wherein the side view mirror is configured for adjustment with respect to the mirror housing so that an angle of the mirror with respect to the mirror housing is selectively changeable, and a first marking that is visible on the reflective surface of the side view mirror so that a reflection of a portion of the vehicle falls within a first portion of the reflective surface that is defined by the first marking.

A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side, and a reference optical axis extending from the object-side to the image-side. An object-side CR reflection boundary and an object-side optical component sub-assembly are positioned on the object-side and an image-side CR reflection boundary and an image-side optical component sub-assembly are positioned on the image-side. The object-side optical component sub-assembly includes an object-side outward-positioned half-mirror, an object-side inward-positioned half-mirror, and at least one of an object-side outward-positioned reflection boundary and an object-side half-wave plate. The image-side optical component sub-assembly includes an image-side outward-positioned half-mirror, an image-side inward-positioned half-mirror, and at least one of an image-side outward-positioned reflection boundary and an image-side half-wave plate. Light from an object located on the object-side of the cloaking device and obscured by the cloaked region is redirected around the cloaked region via three optical paths.

An image display apparatus has: a setting device (132) for setting a synthesizing plane (CS) at a position that is away backward from a first vehicle; a synthesizing device (133) for synthesizing a rear image (111B) captured by a rear imaging device (11B) for imaging a rear area of the first vehicle and a rear side image (111BL, 111BR) captured by a rear side imaging device (11B) for imaging a rear side area of the first vehicle to generate a synthesized image (111C) in which a scene in the rear image and a scene in the rear side image are seamlessly connected at a position of the synthesizing plane, the setting device sets the synthesizing plane at a position that is different from a position at which the synthesizing plane is set when a second vehicle does not exist at the rear of the first vehicle, when the second vehicle exists at the rear of the first vehicle.

A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side, and a reference optical axis extending from the object-side to the image-side. An object-side CR reflection boundary and an object-side optical component sub-assembly are positioned on the object-side and an image-side CR reflection boundary and an image-side optical component sub-assembly are positioned on the image-side. The object-side optical component sub-assembly includes an object-side outward-positioned half-mirror, an object-side inward-positioned half-mirror, and at least one of an object-side outward-positioned reflection boundary and an object-side half-wave plate. The image-side optical component sub-assembly includes an image-side outward-positioned half-mirror, an image-side inward-positioned half-mirror, and at least one of an image-side outward-positioned reflection boundary and an image-side half-wave plate. Light from an object located on the object-side of the cloaking device and obscured by the cloaked region is redirected around the cloaked region via three optical paths.

A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side, and a reference optical axis extending from the object-side to the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side color filter are positioned on the object side and an image-side CR reflection boundary, an image-side half-mirror, and an image-side color filter are positioned on the image-side. The object-side half-mirror and the object-side color filter are spaced apart from and positioned generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side color filter are spaced apart from and positioned generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR propagates via three optical paths to form an image of the object on the image-side of the cloaking device.

A cloaking device includes an object-side, an image-side and a cloaked region between the object-side and the image-side. An object-side polyhedron with an entrance side and an exit side parallel to the entrance side is positioned on the object-side and an image-side polyhedron with an entrance side and an exit side parallel to the entrance side is positioned on the image-side. The entrance side of the object-side polyhedron is oriented relative to a reference optical axis extending between the object-side and the image-side at an acute angle and the exit side of the image-side polyhedron is oriented relative to the reference optical axis at an oblique angle equal to 180. Light from an object positioned on the object-side of the cloaking device is redirected around the cloaked region, without total internal reflection of the light within the object-side polyhedron or the image-side polyhedron.

A cloaking device includes an object-side, an image-side, and a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side external reflection boundary are positioned on the object-side, and an image-side CR reflection boundary, an image-side half-mirror, and an image-side external reflection boundary are positioned on the image-side. The object-side half-mirror and the object-side external reflection boundary are spaced apart and generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side external reflection boundary are spaced apart and generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR is redirected around the CR via two optical paths to form an image of the object on the image-side of the cloaking device.

A cloaking device includes an object-side, an image-side, an object-side cloaking region (CR) reflection boundary having an outward facing mirror surface, and an image-side CR reflection boundary having an outward facing mirror surface. A cloaking region is bounded by the object-side CR reflection boundary and the image-side CR reflection boundary. An object-side lens, an image-side lens and at least one exterior reflection boundary are included. Light from an object positioned on the object-side of the cloaking device and obscured by the cloaking region is focused by the object-side lens, reflected by the object-side CR reflection boundary, the at least one exterior reflection boundary and the image-side CR reflection boundary, and focused by the image-side lens to form an image of the object on the image-side of the cloaking device such that the light from the object appears to pass through the cloaking region.