Laser display visual speckle detection device for simulating human eyes
A technology of laser display and detection device, which is applied in the direction of measuring device, adopting optical device, testing optical performance, etc., to achieve the effect of constant measurement field angle, convenient installation and maintenance, and exquisite structure
Active Publication Date: 2020-10-13
杭州三泰检测技术有限公司
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[0008] The purpose of the embodiment of the present invention is a laser display visual speckle detection device that simulates the human eye, so as to solve the problem that the existing measurement device does not truly simulate the perception characteristics of the laser speckle by the human eye
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[0030] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
[0031] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and / or combinations thereof.
[0032]It should be noted that the terms "first", "second" and the like in the description and claims of the present ap...
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The invention discloses a laser display visual speckle detection device for simulating human eyes. The laser display visual speckle detection device comprises a visual field optical detector, and an iris diaphragm, a lens and a photoelectric image collector which are sequentially arranged on an optical axis; the visual field light detector is used for measuring a brightness signal of visual fieldlight with a certain solid angle in front of the screen; the solid angle of the light received by the visual field light detector is greater than the solid angle formed by the iris diaphragm, the lensand the photoelectric image collector and used for measuring the speckle image light beam of the measuring screen; the aperture of the iris diaphragm changes according to the brightness of the visualfield light detected by the visual field light detector, the relative positions of the lens and the iris diaphragm are kept unchanged, and the photoelectric image collector can move forwards and backwards in the optical axis direction relative to the lens and the iris diaphragm. The visual field light detector is used for simulating perception of human eyes on visual field light brightness changes, and then the characteristic that the pupil size of the human eyes changes along with changes of external light is simulated by adjusting the aperture size of the iris diaphragm and linkage adjustment of the visual field light detector and the iris diaphragm.
Description
technical field [0001] The invention relates to the technical field of laser display, in particular to a laser display visual speckle detection device simulating human eyes. Background technique [0002] Laser is a kind of light source with high brightness and strong directionality, which emits monochromatic related beams. Due to the good monochromaticity and high color purity of lasers, according to the principle of three-color synthesis, there is the largest color triangle area on the chromaticity diagram. It has incomparable advantages over other light sources, and has been gradually applied in the field of projection display technology in recent years. [0003] However, the speckle problem of the laser light source is serious. The so-called speckle refers to that when the coherent light source is irradiated on the surface of the rough object, the scattered light interferes in space. Forms randomly distributed blobs. [0004] Due to the optical path difference, the ligh...
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IPC IPC(8): G01M11/02G01B11/02G01B11/00
CPCG01M11/02G01B11/02G01B11/00
Inventor 牟希王建平
Owner 杭州三泰检测技术有限公司