-
公开(公告)号：EP2625560B1
公开(公告)日：2018-11-21
申请号：EP11741056.3
申请日：2011-07-26
申请人： Raytheon Company
IPC分类号： G02B27/00
CPC分类号： G02B27/0018 , F41G7/2213 , F41G7/2253 , F41G7/2293 , G02B27/0025
摘要： Asymmetric rotating stray light baffles are provided for conformal dome two-axis seekers having arch corrector optics mounted on the outer gimbal. A pair of side skirt baffles are mounted on opposite sides of the arch corrector optics on the outer gimbal extending forward beyond the transparent arch adjacent but not touching the inner surface of the dome and extending aft beyond the forward most receiver optic for all fields of regard (FOR). The optical system may also include: (a) an annular objective baffle mounted on and around the receiver optics on the inner gimbal and between the pair of side skirt baffles, the objective baffle extending forward of the receiver optics without interfering with the receiver optics' FOV and without interfering with the transparent arch as the inner gimbal rotates, (b) a plurality of fin baffles mounted between the side skirt baffles on the outer gimbal that extend forward adjacent but not touching the inner surface of the dome and aft of the transparent arch, each fin baffle positioned to reduce the cross-section seen by the receiver optic when rotated in the direction of that fin baffle and (c) central baffles (short or long) along the axis of symmetry that obscure a portion of the receiver optics' FOV at a zero degree angle of rotation about the second axis.
-
公开(公告)号：EP2161609B1
公开(公告)日：2018-11-07
申请号：EP09160048.6
申请日：2009-05-12
发明人： Bille, Josef F.
CPC分类号： G02B27/0025 , B23K26/06 , B23K26/0624 , B23K2103/32 , B23K2103/50 , G02B5/32 , G02B26/06
摘要： A custom phase plate for a light beam of wavelength "»" includes a sheet of plastic material having a base refractive index "n o ". Formed onto a surface of the sheet is a plurality of contiguous spots having different refractive indices. Together, the spots establish a diffraction pattern in a light beam that removes optical aberrations from the beam. Specifically, each spot has a selected Optical Path Difference (OPD) relative to the base index (n o ) that is equal to k»/10 (for k = 1 to 10). Further, the OPD for each spot in the pattern is individually established by heating the plastic material with a laser beam of ultra-short pulses.
-
3.发明授权
公开(公告)号：EP3248037B1
公开(公告)日：2018-09-26
申请号：EP16715908.6
申请日：2016-01-15
CPC分类号： G02B13/22 , G02B3/06 , G02B13/0065 , G02B13/08 , G02B17/023 , G02B27/0025 , H04N5/2256
摘要： An image-acquiring equipment with camera with linear sensor is described, having a telecentric optical objective whose main lens 23 is of the cylindrical type, placed in the same way as of the main lens of a known telecentric optics; the lens 23 can be of an a-cylindrical type, with profile computed for removing the cylindrical aberration; the optical assembly 13 for forming a real image 16 on the sensor 26 of the linear camera can be replaced with an optics of the photographic type, obtaining the best possible exploitation of the opening A of the main lens 23, greatly simplifying the construction of the telecentric optics; the image-acquiring equipment comprises a telecentric optics 27, a lamp 34 and a camera 24 of the linear or array type, and is pertaining to a viewing system for dimensional, geometric, or metrological checks.
-
公开(公告)号：EP3349052A1
公开(公告)日：2018-07-18
申请号：EP15903413.1
申请日：2015-09-13
发明人： SHI, Hongyan , YANG, Songling
IPC分类号： G02B27/01 , G02B15/173
CPC分类号： G02B17/08 , G02B3/04 , G02B9/34 , G02B17/086 , G02B27/0025 , G02B27/0081 , G02B27/0172 , G02B2027/0134
摘要： The present application relates to an optical module, an optical device and a wearable display device. The wearable display device includes: a miniature display module, configured to output a display source; the optical module, configured to magnify the display source and project the display source to an exit pupil. The optical module includes: a first optical unit, including a first lens having a positive focal power, a second lens having a negative focal power, and a third lens having a positive focal power, the three lens being sequentially arranged; and a second optical unit, including a fourth optical element having a positive focal power, the fourth optical element including a first aspheric surface, a second aspheric surface and a reflection surface, the reflection surface being configured to change a direction of the light path from the first optical unit to an exit pupil.
-
公开(公告)号：EP3208644A4
公开(公告)日：2018-06-13
申请号：EP15850169
申请日：2015-08-27
申请人： NITTOH INC
CPC分类号： G02B7/028 , G02B7/04 , G02B13/16 , G02B27/0025 , G03B21/14 , G03B21/142
摘要： In order to provide a projection lens barrel and a projection display device that are capable of correcting the optical characteristics of a plurality of lens groups, a projection lens barrel 100, comprising a lens optical system 2 causing light from an image display element to be formed as a projected image on a screen, also comprises correction mechanisms 39, 40 that move each of at least two lens groups 5, 8 along an optical axis X and correct the optical characteristics to be corrected, said lens groups each having different optical characteristics for correction in order to suppress reduction in image quality of a projected image caused by changes in optical characteristics caused by temperature changes in the projection lens barrel 100.
-
公开(公告)号：EP2790050B1
公开(公告)日：2018-05-30
申请号：EP14161455.2
申请日：2014-03-25
申请人： asphericon GmbH
发明人： Kiontke, Sven , Fuchs, Ulrike , Moritz, Jens
IPC分类号： G02B27/09
CPC分类号： G02B27/0955 , G02B3/04 , G02B7/021 , G02B27/0025 , G02B27/30
-
公开(公告)号：EP3155468A4
公开(公告)日：2018-05-09
申请号：EP15806796
申请日：2015-06-04
申请人： CANON KK
发明人： AOKI KOJI
CPC分类号： G02B27/0025 , G02B15/14 , G02B15/173 , G02B27/646
摘要： To obtain a zoom lens easily performing image blur correction and maintaining optical performance while performing image blur correction while restricting an increase in size of the lens. A zoom lens including, in order from an object side: a positive first unit; a negative second unit; a positive third unit; and a rear group that has one or more units. Spacings between adjacent units change during zooming. First and second correction systems rotatable about first and second centers on or in the vicinity of an optical axis during blur correction are respectively constituted by at least a part of the second unit and at least a part of an optical system disposed on image side of the second unit. The first and second centers are on image side of a surface vertex of the respective first and second correction systems closest to the object side.
-
公开(公告)号：EP3308213A1
公开(公告)日：2018-04-18
申请号：EP17760743.9
申请日：2017-03-01
申请人： Oculus VR, LLC
发明人： GENG, Ying , GOLLIER, Jacques , MCNALLY, Stephen, James , BRYARS, Brett, Joseph , MCELDOWNEY, Scott, Charles
CPC分类号： G02B27/0172 , G02B5/3083 , G02B6/0005 , G02B6/0008 , G02B6/06 , G02B6/08 , G02B17/0812 , G02B27/0025 , G02B27/283 , G02B2027/011 , G02B2027/0132
摘要： A head mounted display (HMD) includes a field curvature corrected (FC) display to mitigate field curvature in an image that is output to a user's eyes. The FC display includes elements that generate the image light and elements to mitigate field curvature from the image light. The FC display may include a display panel with lenses, a display panel with a reflective polarizer and reflective surface, or other optical elements. The FC display may include a pancake lens configuration including a polarized display with a quarter wave plate, a reflective mirror, and a polarization reflective mirror.
-
9.发明公开
公开(公告)号：EP3301647A1
公开(公告)日：2018-04-04
申请号：EP17192568.8
申请日：2017-09-22
申请人： Thomson Licensing
发明人： HU, Wei , REINHARD, Erik , SEIFI, Mozhdeh
IPC分类号： G06T7/80
CPC分类号： H04N5/2254 , G02B3/0056 , G02B27/0025 , G06T7/80 , G06T2207/10052 , H04N5/23245 , H04N17/002
摘要： The present disclosure concerns a method for calibrating a plenoptic camera, said plenoptic camera comprising a lenstlet array placed between a main lens and a photosensor, said lenslet array comprising a plurality of lenslets. The method is remarkable in that it comprises:
obtaining a white image W and a model that describes light scene occlusion induced by the main lens and each lenslet, for a given pixel of said photosensor, wherein said model is represented by a set of parameters;
obtaining a first subset of parameters values from said set of parameters in said model;
obtaining a second subset of parameters value from said set of parameters in said model by performing a maximum likelihood estimation method based on said model, said white image and said first subset of parameters values, and wherein a union of said first and said second subsets of parameters corresponds to said set of parameters.摘要翻译： 本公开涉及一种用于校准全光照相机的方法，所述全光照相机包括放置在主透镜和光电传感器之间的透镜阵列，所述小透镜阵列包括多个小透镜。 该方法的显着之处在于其包括：对于所述光电传感器的给定像素，获得白色图像W和描述由主透镜和每个小透镜引起的光场景遮挡的模型，其中所述模型由一组参数表示; 从所述模型中的所述一组参数中获得参数值的第一子集; 通过基于所述模型，所述白色图像和所述第一参数值子集执行最大似然估计方法，从所述模型中的所述一组参数中获得参数值的第二子集，并且其中所述第一和所述第二子集 参数对应于所述一组参数。
-
公开(公告)号：EP3292686A1
公开(公告)日：2018-03-14
申请号：EP16725302.0
申请日：2016-05-06
IPC分类号： H04N9/31
CPC分类号： H04N9/3144 , G02B27/0025 , G02B27/0927 , G03B21/16 , G03B21/2053 , G03B21/206 , G06T5/003 , H04N9/3126 , H04N9/3182 , H04N9/3194
摘要： Apparatus for controlling a spatial light modulator (106) of an image projector (100), the image projector further comprising an illumination source (102) arranged to illuminate the spatial light modulator (106), the apparatus comprising an input (126) for receiving image data, an output for outputting image data and a controller (110) in communication with the input and the output, the controller (110) being configured to: •determine an estimated thermal state of the projector; •use at least the estimated thermal state of the projector to obtain an expected illumination pattern of light incident on the spatial light modulator (106) when illuminated by the illumination source (102); •use the expected illumination pattern to adjust the received image data so as to compensate for thermal changes in one or more components of the image projector; and •output the adjusted image data to the spatial light modulator (106).
-
-
-
-
-
-
-
-
-
搜索结果
750 条记录 (耗时 0.021 秒)
