Abstract:
This invention relates to a method for the taking and projecting of wide-screen images having an image format with a width to height ratio of 3:1 or greater. The method involves using a camera having an anamorphic compression lens with a compression ratio along one axis of two times or more in which the image is formed on stock run horizontally through the camera. The image formed is subsequently printed onto film run vertically through the projector to produce an undistorted panoramic image with a ratio of 3:1 or wider.
Abstract:
The invention relates to a method and a device for producing a wide-angle picture, in particular a panoramic picture. It proposes the following procedural steps and a device operating according to this method in order to take the most complete wide angle or panoramic picture possible in a single moment of recording: reflection of the picture to be taken on a rotationally symmetrical mirror structure (1,1') to the picture recording plane (2); recording of the reflected image; conversion of the image recorded into digital imagery; processing of the digital imagery in a computer to correct the image distortion caused by reflection and to display the image.
Abstract:
An optical assembly is disclosed, comprising: a curved reflector disposed on an optical path between a source of electromagnetic radiation and a target onto which the electromagnetic radiation is to be directed; an adaptive optical element disposed on the optical path between the source and the target, wherein the adaptive optical element is controllable to change an angle through which the electromagnetic radiation on the optical path is deflected by the adaptive optical element; and a controller configured to control the adaptive optical element so as to move a point at which the optical path intersects a surface of the curved reflector, thereby to produce a variation in a part of the optical path beyond the curved reflector. A control method of such an optical assembly is also disclosed.
Abstract:
An imaging device (100,500) comprises: - an anamorphic unit (10) to form a virtual image (VMG1) of a cylindrical viewing region (SRF1), and - a focusing unit (20) to form a real image (IMG1) of the auxiliary virtual image (VMG1), wherein the anamorphic unit (10) comprises two or more refractive lenses (LNS11, LNS12) which have been selected such that the horizontal refractive power (P x,C ) of the imaging device (100) is greater than 1.5 times the vertical refractive power (P y,C ) of the imaging device (100), and the anamorphic unit (10) is arranged to form the virtual image (VMG1) by refracting light (B0 k ) received from the cylindrical viewing region (SRF1) such that the aspect ratio(Δϕ/ΔΦ) of the virtual image (VMG1) is lower than the aspect ratio (Δϕ'/ΔΦ') of the viewing region (SRF1).
Abstract:
The invention is related with a lens apparatus which enables 360° recording that can be secured to cameras, or be secured to cellular phones carrying similar camera-wise functions, and the whole invention provides 360° wide-ranging sphere recording.
Abstract:
An imaging system (100) includes a spherical window (105), a reflector (120), an image sensor (140), a housing (150) and a snap ring (160). The reflector (120) has a focus point (135) located at a center of a sphere defined by an outer surface (110) of the window (105). Light entering the window (105) at an angle perpendicular to the outer surface (110) of the window (105) and traveling to the focus point (135) is reflected onto the image sensor (140) by the reflector (120). The window (105) and housing (150) have first and second grooves (215, 210), respectively. In order to couple the window (105) to the housing (150), the snap ring (160) is placed in the second groove (210), the snap ring (160) is compressed with the window (105) and then the snap ring (160) is allowed to expand so that the snap ring (160) is located in both the first and second grooves (215, 210).
Abstract:
The invention relates to an optical device (40) for obtaining, with a single acquisition, a hyper-hemispheric field of view, which can be applied to an optical system (20) for obtaining a hyper-hemispheric image, comprising a retro-reflector (3) with an outer convex spherical surface (1) and an image sensor (18) for digital processing the field of view; the optical device (40) comprises an optical element (6) which is fixable to the retro-reflector (3) in correspondence with the outer convex spherical surface (1); the optical element (6) is able to capture the rays (16, 17) coming from an object to shoot and is able to transmit said rays to the image sensor (18). The invention also relates to an optical system (20) comprising said optical device (40), an apparatus for shooting images and an apparatus for projecting images comprising said optical system (20).