Portable optical camera obscura

Abstract

The invention provides a portable optical camera obscura, which belongs to the field of optical analog simulation and the technical field of aerospace. The portable optical camera obscura comprises a camera obscura body, a telescopic extinction cover, an incoming and outgoing line module and a temperature and humidity monitoring module; the camera obscura body serves as a main body of the optical camera obscura and is used for accommodating an optical tested device; the telescopic extinction cover is used for sealing the obscura body; the incoming and outgoing line module is adapted to incoming and outgoing of cables of various specifications, and meanwhile, the extinction rate in the camera obscura is ensured; the temperature and humidity monitoring module provides environment monitoring data for the testing process. The portable optical camera obscura has excellent compatibility, can be used for dark environment testing of various optical systems under various environment conditions, is convenient and reliable to operate, can be used for quickly building an optical testing system, and provides an independent illumination shielding space for optical testing.

Description

technical field [0001] The invention belongs to the technical fields of optical simulation and aerospace, and relates to a portable optical dark box. Background technique [0002] The satellite navigation star sensor captures the star map for attitude positioning, and when performing star point recognition, it will refer to the magnitude value to extract the star point. In order to simulate the star map extraction and recognition ability of the satellite actually in orbit, a real magnitude test system will be built during the ground test to verify the relevant performance of the navigation star sensor. [0003] Magnitude is a measure of the brightness of a celestial body. Different magnitudes correspond to different brightnesses. The brightness of a star point is represented by magnitude. The dimmest star visible to the naked eye is magnitude 6. The higher the value, the lower the brightness. During the real magnitude ground test, in order to be able to simulate and extract...

AI Technical Summary

Problems solved by technology

Due to the limited resources in the darkroom, it is often necessary to provide some equipment in the room when this kind of test work is in progress, so the test preparation period is relatively long, which is very inconvenient

In addition, there is a kind of darkroom built with temporary blackout curtains. The actual extinction effect is not ideal, so it is not suitable for testing in high-dark environments.

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