Please select the most similar patent number from A, B, C and D. Which number is?
The present application relates to a dot matrix spectrum measurement apparatus and method, and an area array chrominance measurement apparatus and method, which relate to the technical field of spectrum measurement. The dot matrix spectrum measurement apparatus comprises an objective lens, which is used for imaging a target; a dot scanning assembly, which is used for collecting, in the form of a two-dimensional dot matrix, an image of the target that is formed by means of the objective lens, so as to obtain two-dimensional dot matrix light, converting the two-dimensional dot matrix light into one-dimensional dot matrix light and then emitting same; and a collimation and dispersion assembly, which is used for performing collimation processing, dispersion processing and focusing processing on the one-dimensional dot matrix light; and an imaging assembly, which is used for imaging the one-dimensional dot matrix light that has been subjected to collimation processing, dispersion processing and focusing processing, so as to obtain spectrum information of each beam of light in the two-dimensional dot matrix light. By means of the present application, two-dimensional dot matrix light is converted into one-dimensional dot matrix light, and spectrum information of each beam of light in the two-dimensional dot matrix light is obtained in combination with collimation and dispersion processing, such that the present application can be applied in spatial multi-dot spectrum testing, and the spectrum test efficiency is improved.
A: Provided is a spectrometer, comprising: a collimating element (2) for converting a broadband beam into parallel light; a dispersion device (8) for dispersing the parallel light into a plurality of beams of dispersed light based on the wavelengths thereof; a focusing element (5) for focusing dispersed light with the same wavelength, the focusing element (5) focusing dispersed light with different wavelengths onto different positions in a focal plane, and focal spots of all the dispersed light being arranged along a straight line; and a detecting device (6) performing detection at a plurality of positions in the focal plane, the detecting device being used for detecting multiple types of dispersed light with different preset wavelengths. When an incident angle of the parallel light incident to the dispersion device (8) is fixed, the dispersion device (8) and the focusing element (5) cooperate with each other in such a manner that the focusing positions of the multiple types of dispersed light with different preset wavelengths and the multiple detection positions are in one-to-one correspondence; and the difference between the wave numbers of any two adjacent beams of the dispersed light among the dispersed light with the different preset wavelengths is equal, thereby greatly reducing the number of operations during imaging by means of the spectrometer, saving on the imaging time, and improving the imaging speed.
B: A light source structure (1), used for transmitting a light beam to a target object to be sensed to carry out three-dimensional sensing. The light source structure (1) comprises a semiconductor substrate (10) and multiple light-emitting units (12) formed on the semiconductor substrate (10). The light-emitting units (12) are distributed, in the form of a two-dimensional lattice, on the semiconductor substrate (10). At least three adjacent light-emitting units (12) are arranged at unequal intervals on the semiconductor substrate (10). The peak value of the overall normalized correlation coefficients between the light-emitting units (12) is greater than or equal to 0.3 but is less than 1.
C: The present application is applicable to the technical field of three-dimensional imaging, and particularly relates to a three-dimensional imaging method, apparatus, and terminal device. The three-dimensional imaging method comprises the two parts of real-time processing and post-processing. The real-time processing part comprises: acquiring a two-dimensional image collected by an imaging unit during a three-dimensional scanning process, performing fast processing on the two-dimensional image, and calculating the position of the imaging unit and a three-dimensional point cloud under multiple channels in real time. The post-processing part comprises performing secondary processing on the collected two-dimensional image so as to obtain a complete three-dimensional point cloud under each channel, and reconstructing a three-dimensional model of a target object according to the complete three-dimensional point cloud. In the embodiments of the present application, multi-channel feature information is used to acquire three-dimensional point cloud data of the target object. Since the acquired original data is more comprehensive, the obtained three-dimensional model is more accurate, and the accuracy of three-dimensional data reconstruction is improved.
D: A depth information image acquisition apparatus and an electronic device (400). The present application is simple in structure, can reduce device power consumption, and facilitates the improvement of outdoor use effect. The apparatus comprises: multiple two-dimensional optical phase modulation structures (110), each two-dimensional optical phase modulation structure (110) comprising a substrate (111) and a protrusion (112) disposed on the substrate (111), and being used for performing spatial phase modulation on an optical signal reflected by an object; and an optical sensor that is disposed below the multiple two-dimensional optical phase modulation structures (110) and comprises multiple pixel arrays (120). The multiple pixel arrays (120) correspond one-to-one to the multiple two-dimensional optical phase modulation structures (110). A pixel array (120) is used for receiving the optical signal modulated by the corresponding two-dimensional optical phase modulation structure (110). A pixel array (120) comprises multiple pixels. The intensity distribution of optical signals received by the multiple pixels is used for determining the incident angle of the optical signal incident on the corresponding two-dimensional optical phase modulation structure (110), and the incident angle is used for determining depth information of an object image.
Answer: A