Abstract:
The invention refers to an Illumination device for illuminating a spatial light modulator device. Sub-holograms are used for encoding a hologram into the spatial light modulator device. The Illumination device comprises at least one light source for emitting light for illuminating the spatial light modulator device and a beam shaping unit. The beam shaping unit provides a flat- top plateau-type distribution of an absolute value of a complex degree of mutual coherence of the light in a plane of the spatial light modulator device to be illuminated. The flat-top plateau- type distribution of the absolute value of the complex degree of mutual coherence has a shape that is at least similar to a shape of the largest sub-hologram used for encoding of object points into the spatial light modulator device.
Abstract:
An image acquisition system for acquiring iris images for use in biometric recognition of a subject includes an optical system comprising a cluster of at least 2 lenses arranged in front of a common image sensor with each lens optical axis in parallel spaced apart relationship. Each lens has a fixed focus and a different aperture to provide a respective angular field of view. The lens with the closest focus has the smallest aperture and the lens with the farthest focus has the largest aperture so that iris images can be acquired across a focal range of at least from 200mm to 300mm.
Abstract:
Vorrichtung zur Formung von Laserstrahlung (10a, 10c), umfassend ein Bauteil (1) mit einer Eintrittsfläche (2) und einer Austrittsfläche (3), ein erstes Linsenarray (4) auf der Eintrittsfläche (2), das eine Mehrzahl von in X-Richtung nebeneinander angeordneten Linsen (5a, 5c, 5e) aufweist, sowie ein zweites Linsenarray (6) auf der Austrittsfläche (3), das eine Mehrzahl von in Y-Richtung nebeneinander angeordneten Linsen (7a, 7c, 7e) aufweist, wobei von einer ersten der Linsen (5a, 5c, 5e) des ersten Linsenarrays (4) die Laserstrahlung (10a, 10c) hinsichtlich der X- und Y-Richtung unter einem anderen Winkel abgelenkt wird als von einer zweiten der Linsen (5a, 5c, 5e) des ersten Linsenarrays (4), und/oder wobei von einer ersten der Linsen (7a, 7c, 7e) des zweiten Linsenarrays (6) die Laserstrahlung (10a, 10c,) hinsichtlich der X- und Y-Richtung unter einem anderen Winkel abgelenkt wird als von einer zweiten der Linsen (7a, 7c, 7e) des zweiten Linsenarrays (6).
Abstract:
An optoelectronic module has multiple optical channels each of which includes a respective optical element at a different height within the module. The modules can include channels arranged side-by-side where each channel is covered by a respective cover that is optically transmissive to one or more wavelengths of light emitted by or detectable by the optoelectronic devices in the module. The transmissive covers, which respectively can include one or more passive optical elements on their surfaces, are disposed at different heights within the module.
Abstract:
본 발명의 일실시예에 따른 프로젝터용 광학엔진은, 제1 광원부, 제1 광원부와 다른 색상의 광을 출력하는 제2 광원부, 제1,2 광원부와 다른 색상의 광을 출력하는 제3 광원부, 소정 영상을 출력하는 마이크로 디스플레이 패널, 각각 블록렌즈로 구성되는 복수의 셀(cell)을 포함하고, 광을 균일하게 하는 파리눈(fly eye) 렌즈와 제1 내지 제3 광원부의 출력 광 및 출력되는 영상에 기초하여, 생성된 투사 영상을 외부로 투사하는 투사 렌즈를 포함하고, 복수의 셀 중 2이상의 셀은 다른 셀과 상이한 형상을 가지는 것을 특징으로 한다. 이에 따라, 프로젝터의 구조 및 부품을 단순화하면서 광학 효율을 향상시킬 수 있어, 제조비 및 설치 공간을 감소시키고 표시 품질은 향상시킬 수 있다.
Abstract:
A mobile terminal that may take images and a control method for the mobile terminal are disclosed. The mobile terminal comprises a display module; a camera provided with a plurality of lenses; and a controller configured to receive images through the plurality of lenses and outputting the received images on the display module, wherein the controller generates one moving image data by using an image received from the first lens of the plurality of lenses and an image received from the second lens different from the first lens.