摘要:
Image sensor (331; 531; 531') for use with a lens (340; 540') arranged to focus light onto an image sensing area (333; 533) of said image sensor (331; 531). Camera (330; 530'; 730) comprising the image sensor (331; 531; 531') and said lens (340; 540'). Imaging system (305; 705; 730) for three-dimensional imaging of an object (320; 720) based on light triangulation, comprising the camera. The image sensor (331; 531) comprising an optical plate (337; 537) arranged to cover the image sensing area (333; 533) by at least two optical plate portions (334-1, 334-2; 534-1, 534-2) with different refractive properties such that light incident from said lens (340; 540') and refracted by said optical plate portions (334-1, 334-2; 534-1, 534-2) towards and onto the image sensing area (333; 533) will travel different distances to be in focus on the image sensing area depending on which of said optical plate portions (334-1, 334-2; 534-1, 534-2) the light was refracted by. As a result, the image sensing area portions covered by said at least two optical plate portions (334-1, 334-2; 534-1, 534-2) become associated with different focus planes (351-1, 351-2; 751-1, 751-2).
摘要:
A photographing lens assembly (8) includes at least four lens elements that are, in order from an object side to an image side along an optical path, a first lens element (E1), a second lens element (E2), at least one subsequent lens element and a last lens element that is closest to an image surface (IMG). Each of the at least four lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one surface among lens surfaces from the image-side surface of the second lens element (E2) to the object-side surface of the last lens element is a metasurface having a subwavelength microstructure (Lm).
摘要:
The invention relates to a multi-aperture imaging device comprising an image sensor, a single-row array of optical channels arranged next to one another, wherein each optical channel has an optic for imaging a sub-region of an object region on an image sensor region of the image sensor, and a beam deflection device for deflecting a beam path of the optical channels. The multi-aperture imaging device comprises an actuator device for generating a relative movement between the image sensor, the single-row array and the beam deflection device, wherein the actuator device is arranged in such a way that it is arranged at least partially between two planes, which are spanned via sides of a cuboid, wherein the sides of the cuboid are arranged in parallel to one another, as well as in relation to a row extension direction of the single-row array and a part of the beam path of the optical channels between the image sensor and the beam deflection device. A volume of the cuboid is minimal and nevertheless comprises the image sensor, the single-row array and the beam deflection device.
摘要:
Optical systems including an image surface, a stop surface, a partial reflector disposed between the image surface and the stop surface, a reflective polarizer disposed between the stop surface and the partial reflector, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector are described. The reflective polarizer is convex along two orthogonal axes. The reflective polarizer may be a thermoformed multilayer reflective polarizer.
摘要:
In the image capturing apparatus M, the optical path difference producing member 21 is disposed on the second optical path L2. Thereby, it is possible to suppress the amount of light when an optical image which is focused at the front of an optical image made incident into the first imaging device 18 (front focus) and an optical image which is focused at the rear thereof (rear focus) are respectively imaged at the second imaging device 20 and also to secure the amount of light on image pickup by the first imaging device 18. Further, in the image capturing apparatus M, a position of the first imaging region 22A and a position of the second imaging region 22B on the imaging area 20a are reversed with respect to the axis P in association with reversal of a scanning direction of the sample S. Therefore, despite the scanning direction of the sample S, it is possible to obtain a deviation direction of the focus position under the same conditions.
摘要:
A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.
摘要:
Provided is an objective optical element which can appropriately correct degradation from spherical aberration upon fluctuation of a light source wavelength while maintaining light use efficiency, just by changing the magnification of the objective optical element, and which can record/reproduce information to/from different optical discs. Also provided is an optical pickup device using the objective optical element. When a light flux having two different wavelengths λ 11 , λ 12 (wherein λ 11 12 and λ 12 - λ 11 = 5nm) within a range of wavelength λ 1 is introduced to the objective optical element to measure the wavefront aberration, the following third order and fifth order spherical aberrations in unit of λrms are obtained: SA3(λ 11 ), SA5(λ 11 ), SA3(λ 12 ), SA5(λ 12 ). If ΔSA3 = |SA3(λ 12 ) - SA3(λ 11 )|, ΔSA5 = |SA5(λ 12 ) - SA5(λ 11 )|, the following expression is satisfied: 0.18 > ΔSA3 > ΔSA5 >0 (1)
摘要:
An optical system of a portable projector and a mobile communication terminal using the same are disclosed. The optical system comprises a light transmission member (50) having first and second surfaces, a light source device (51) for emitting light beams onto the first surface of the member, so as to allow the light beams to be transmitted into the member, and one or more optical elements (52 - 59) supported on at least one of the first and second surfaces of the member for diffracting the light beams incident from the light source device into the member, and subsequently reproducing and emitting an image from the diffracted light beams, to the outside of the member.
摘要:
Eine Zusatzoptik mit positiver Brechkraft wird dazu verwendet, durch Einbringen der Zusatzoptik zwischen einem Kameraobjektiv und einem Bildsensor einer Kamera eine durch das Kameraobjektiv auf dem Bildsensor erzeugte optische Abbildung zu beeinflussen, wobei die Mittendicke der Zusatzoptik und die Brechkraft der Zusatzoptik derart aufeinander abgestimmt sind, dass für eine vorbestimmte Arbeitsblende des Kameraobjektivs ein durch das Kameraobjektiv definiertes Auflagemaß durch das Einbringen der Zusatzoptik im Wesentlichen unverändert bleibt.