T/CSOE 0005-2025 Active Group standards

T/CSOE 0005-2025 Underwater Camera Optical System Image Quality Test Method

T/CSOE 0005-2025

Publish Date: 2025-04-18 Implement Date: 2025-04-18 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CSOE 0005-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Oceanography

ICS Name: Geology, meteorology, and hydrology

Publish Date: 2025-04-18

Implement Date: 2025-04-18

Scope

Scope: This document specifies the testing principles, testing conditions, testing equipment, testing methods, data processing, and testing reports for the image quality testing of underwater camera optical systems. This document is applicable to the resolution and distortion testing of underwater camera optical systems with rotationally symmetric design; Main technical content: A diffraction grating is placed at the focal plane of the underwater-dedicated parallel light tube lens under uniform illumination. The light beam emitted by the parallel light tube source is imaged onto the camera target plane after passing through the underwater-dedicated parallel light tube internal lens, the water body, and the underwater camera optical system to be tested. By moving the position of the diffraction grating in the underwater-dedicated parallel light tube, different object distances such as infinity and specific object distances can be simulated. By rotating the underwater gimbal to adjust the shooting field of view, the underwater camera captures different field of view diffraction grating patterns, and the pattern data are analyzed to achieve the testing of the resolution and distortion of the underwater camera optical system.