Eyes-shielded hemlet display system

A helmet display and eye protection technology, applied in optical components, optics, instruments, etc., can solve the problems of large size, inconvenience, and small field of view of eyepieces

Inactive Publication Date: 2007-01-17
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] CRT is used as the image source in the traditional goggle-type helmet display system, which has problems such as large volume, fragile, high quality, low resolution, small field of view and high-voltage connection, and the matching eyepiece field of view Also smaller, in order to solve the problem that the traditional eye protection helmet display system has a small field of view, large mass, and high voltage brings danger to users and inconvenient use, the purpose of the present invention is to propose a large field of view, quality Lightweight, safe and convenient eye protection helmet display system

Method used

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  • Eyes-shielded hemlet display system
  • Eyes-shielded hemlet display system
  • Eyes-shielded hemlet display system

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Embodiment Construction

[0011] combined with figure 2 , the implementation of the present invention is further described:

[0012] An embodiment includes: a first lens 1 , a second lens 2 , a third lens 3 , a lens group 4 , an aperture stop 5 and a display 6 . The working waveband of the present invention is the visible light waveband, adopts the C light of 0.656 μm, the D light of 0.587 μm, the F light of 0.486 μm during design; ), the exit pupil distance is 20mm; the total system length: 60mm-75mm (including the exit pupil distance).

[0013] The reverse design is adopted, that is, starting from the virtual image at -2 meters away (because it is too far away, it is not drawn in the figure), reaching the aperture stop 5 with a full field of view angle of 50°, and then moving forward from the aperture stop 5 (to the right) propagates, passes through the first lens 1 , the second lens 2 , the third lens 3 and the lens group 4 , and reaches the display 6 . Wherein the aperture stop 5 represents the...

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Abstract

The invention belongs to eye guard headgear display system, including a aperture diaphragm, the first lens, the second lens, the third lens, a lens group and a display. It adopts OLED or AMLCD as the image source. It has small volume, light weight, high distinguishability and wide view field. And it is not connected with high pressure. The volume of the ocular system is small and the weight is light. When the tiny display of small size and high image element is adopted, the ocular with the big exit pupil diameter and the big eye point distance is certain to lead big incidence angle and high project to bring big high-level image error. The invention uses the second lens, the third lens and the fourth lens to compress beam. The first lens and the fifth lens balance the image error led by the second, the third and the fourth lens to gain the ocular system of the big exit pupil diameter, the big eye point distance and the big view field. The display and the ocular group form the eye guard headgear display system. It has big view field, light weight, small volume and is used safely and conveniently.

Description

technical field [0001] The invention belongs to an optical imaging system, and relates to a helmet display system. Background technique [0002] With the continuous improvement of the maneuverability of modern fighter jets, air-to-air missiles are developing towards large off-axis angles (±30°), optical sights (10° field of view) and flat head-up displays (14°-18°), Due to the limitation of its field of view, it can no longer fully meet the needs of weapon matching. Therefore, helmet-mounted sights and helmet-mounted displays, which are not limited by their field of view, have been paid attention to by countries all over the world, and have successively developed into helmet-mounted sighting systems and become an important part of aviation fire control systems. Modern helmet-mounted displays can be designed as eye-protection type and see-through type according to needs. The eye-protecting helmet-mounted display is to enlarge the virtual image by passing the image of the di...

Claims

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Application Information

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IPC IPC(8): G02B27/01G02B9/34G02B11/20G02B1/00
Inventor 孙强葛振杰
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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