Head-mounted equipment field-of-view measurement system

Abstract

The invention discloses a head-mounted equipment field-of-view measurement system, and the system comprises a control board which is used for the transmitting, receiving, analyzing and calculating ofinformation; a spherical fornix internally provided with a space for a tested object to wear head-mounted equipment to measure the field of view, wherein a plurality of light-emitting pieces for providing light spots required by field-of-view measurement are arranged on the intersection points of the longitude and latitude lines of the inner spherical surface of the spherical fornix, the light-emitting pieces being electrically connected to a control panel through cables and controlled by the control panel to be turned on or turned off; and a feedback transponder electrically connected with the control panel through a wire and used for feeding back response results of the tested object to the light spots on the spherical fornix. The light spots required by field-of-view measurement are arranged on the inner spherical surface of the spherical fornix; due to the fact that the spherical aperture of the spherical fornix is large, the number of light spots capable of being distributed on the inner spherical surface of the spherical fornix is large; and the distribution range of the light spots on the inner spherical surface of the spherical fornix is wide, so that the visual field measurement range of the head-mounted equipment can be expanded, and the stability of the visual field measurement result is improved; and the visual field design of various head-mounted devices can be evaluated.

Description

technical field [0001] The invention relates to the technical field of head-mounted equipment detection, in particular to a head-mounted equipment field of view measurement system. Background technique [0002] The pilot's head-wearing equipment includes helmets, goggles (glare goggles, windshields), night vision goggles, oxygen masks, anti-virus (biochemical) masks and other head protection or visual equipment. The field of view of these devices and their combinations directly affects the spatial range observed by the pilot, which in turn affects flight operations. [0003] At present, there is no field of view measurement system for the pilot's head-mounted equipment to evaluate the design of the pilot's head-mounted equipment. The closest product is the medical perimetry. The specific operation method of the medical perimetry is: ① adjust the fixed background brightness in the detection equipment; The examiner actively looks at a fixed point; ⑤The detection procedure st...

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Problems solved by technology

[0004] However, the medical perimetry has a small caliber (a spherical surface with a diameter of about 0.5m), fewer light spots (about 200 light spots), and a small measurement range (less than 90°, that is, less than half a sphere), so it can only be used with the naked eye. Visual field inspection, for the diagnosis of ophthalmic diseases, cannot be used for visual field (field of view) measurement of head-mounted equipment

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