摘要:
The present invention relates to an imaging device for motion detection of objects in a scene, and method for motion detection of objects in a scene. Generally the present invention relates to a system and method for creating a three dimensional image or image sequence (hereinafter “video”), and more particularly to a system and method for measuring the distance and actual 3D velocity and acceleration of objects in a scene.
摘要:
The present invention relates to optical unit comprising, seen in the direction from the object side to the imaging surface, a first substrate, a first lens, a second lens and a second substrate, characterised in that the distance [(vertex first lens) and (vertex second lens)] is 250-650 pm. Such an optical unit is used, inter alia, in image processing units, such as cameras. It is an object of the present invention to provide an optical unit in which the desired dimensional precision of the lens system can be accomplished without this leading to an undesirable increase of the optical unit's dimensions.
摘要:
The present invention relates to optical unit comprising, seen in the direction from the object side to the imaging surface, a first substrate, a first lens, a second lens and a second substrate, characterized in that the distance [(vertex first lens) and (vertex second lens)] is 250-650 pm. Such an optical unit is used, inter alia, in image processing units, such as cameras. It is an object of the present invention to provide an optical unit in which the desired dimensional precision of the lens system can be accomplished without this leading to an undesirable increase of the optical unit's dimensions.
摘要:
An optical system comprising a substrate and disposed on said substrate a replica layer, characterised in that a functionality selected from the group consisting of grating, volume Bragg grating, holographic, diffractive, non-periodic structure, optical polarizer, micro lens and gradient index lens is incorporated in the substrate. The object of the present invention is therefore to provide an optical system in which elements which previously played a passive part are given an active role in order to thus realise desired properties of the optical system.
摘要:
Method of manufacturing a lens assembly by means of a replication process, wherein the following steps are carried out i) introducing a first, liquid, UV curable composition (2) into a first mould (1) provided with regularly spaced-apart cavities (6), ii) curing said first composition by UV radiation so as to obtain a first lens element comprising lenses arranged beside each other, wherein the surface of the obtained lens element is the negative of that of the cavities, in) applying a second, liquid, UV curable composition (5) to the first composition cured in step ii), iv) placing a second mould (4) on the second composition (5) applied in step iii), which second mould is provided with regularly spaced-apart recesses (7), in such a manner that said recesses will fill with the second composition, v) curing the second composition by UV radiation so as to obtain a second lens element comprising lenses arranged beside each other, wherein the surface of the obtained lens element is the negative of that of the recesses, and vi) possibly removing the first and/or the second mould.
摘要:
A camera device comprising an image capturing element, one or more lens elements for projecting an object on the image capturing element, one or more spacer means for maintaining a predetermined distance between the lens and the image capturing element, and one or more lens substrates for carrying the lens, wherein the camera device further comprises an electrically variable focus polymer-stabilized liquid crystal lens.
摘要:
The present invention relates to an optical unit. The present invention further relates to the use of such an optical unit. Such an optical unit comprises, seen in a direction from the object side to the imaging surface, a first substrate, a first lens element, a flat, transparent intermediate layer, a second lens element and a second substrate, which intermediate layer has an optically correcting function near the imaging surface.
摘要:
Method of manufacturing a lens assembly by means of a replication process, wherein the following steps are carried out i) introducing a first, liquid, UV curable composition (2) into a first mould (1) provided with regularly spaced-apart cavities (6), ii) curing said first composition by UV radiation so as to obtain a first lens element comprising lenses arranged beside each other, wherein the surface of the obtained lens element is the negative of that of the cavities, in) applying a second, liquid, UV curable composition (5) to the first composition cured in step ii), iv) placing a second mould (4) on the second composition (5) applied in step iii), which second mould is provided with regularly spaced-apart recesses (7), in such a manner that said recesses will fill with the second composition, v) curing the second composition by UV radiation so as to obtain a second lens element comprising lenses arranged beside each other, wherein the surface of the obtained lens element is the negative of that of the recesses, and vi) possibly removing the first and/or the second mould.
摘要:
The present invention relates to an optical unit. The present invention further relates to the use of such an optical unit. Such an optical unit comprises, seen in a direction from the object side to the imaging surface, a first substrate, a first lens element, a flat, transparent intermediate layer, a second lens element and a second substrate, which intermediate layer has an optically correcting function near the imaging surface.