Free-form surface goggles-based see-through helmet mounted display device

A technology for helmet display and goggles, which is applied to helmets, helmet covers, clothing, etc., can solve the problems of difficulty in aberration correction, limited type and position of the folding screen, etc., and achieves a simple structure, improved illumination, and improved imaging quality. Effect

Inactive Publication Date: 2010-12-15
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The projection structure belongs to the Pupilforming form, that is, the pupil plane in the optical system is conjugate to the eye exit pupil. Although the eyepiece structure has the advantages of simple structure and color display, it also has the disadvantage ...

Method used

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  • Free-form surface goggles-based see-through helmet mounted display device
  • Free-form surface goggles-based see-through helmet mounted display device
  • Free-form surface goggles-based see-through helmet mounted display device

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Embodiment Construction

[0021] Such as figure 1 As shown, the penetrating helmet display device based on free-form surface goggles includes a micro-display imaging device S1, free-form surface goggles S8, a helmet body S10, and a relay lens group S21. A free-form surface is provided directly in front of the helmet body S10 The goggles S8, the front of the helmet body S10, and the upper sides of the free-form surface goggles S8 are respectively provided with a micro-display imaging device S1 and a relay lens group S21. The two relay lens groups S21 are arranged at an inclination angle of 42 degrees. The lens group S21 includes the first relay lens S2, the second relay lens S3, the third relay lens S4, the fourth relay lens S5, the fifth relay lens S6, the sixth relay lens S7, the first relay lens The lens S2 is placed in sequence with the second relay lens S3, the third relay lens S4, the fourth relay lens S5, the fifth relay lens S6, and the sixth relay lens S7.

[0022] The free-form surface goggle...

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Abstract

The invention discloses a free-form surface goggles-based see-through helmet mounted display device. A pair of free-form surface goggles is arranged in front of a helmet body, wherein micro-display imaging devices and relay lens assemblies are arranged in front of the helmet body and on the two sides of the upper part of the free-form surface goggles respectively; the two relay lens assemblies are arranged at an inclination angle of 42 degrees; each relay lens assembly comprises a first relay lens, a second relay lens, a third relay lens, a fourth relay lens, a fifth relay lens and a sixth relay lens; and the first relay lens, the second relay lens, the third relay lens, the fourth relay lens, the fifth relay lens and the sixth relay lens are arranged in turn. In the device, a tire tread-shaped free-form surface is used for imaging, so the device can realize a large off-axis angle of 33 degrees, correct the aberration well and obviously improve the imaging quality and has a simple structure; the device is suitable to be arranged on a human head and conforms to the characteristic of man-machine efficacy; and by using the design of a short-focus large angle of view, the device has an exit pupil of between 12 and 15mm and an angle of view of between 40 and 50 degrees.

Description

technical field [0001] The invention relates to a penetrating helmet display device based on free-form surface goggles. Background technique [0002] After more than 30 years of development, especially in recent years, the technology of the helmet-mounted display has made great progress. The helmet-mounted display was first used in virtual reality. The feeling of being in a virtual environment. Head-mounted displays are widely used in virtual reality, visual training, medicine, aviation, entertainment and other occasions, and have a huge application market. HMD can be divided into immersion type and penetrating type according to its application. The immersion type is to block the external signal of the helmet and only display the internal signal generated by the helmet. The penetrating type is just the opposite. It superimposes the internal signal and the external scene of the helmet. The helmet-mounted display can realize the superposition of internal virtual signals and ...

Claims

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Application Information

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IPC IPC(8): G02B27/01A42B3/22
Inventor 郑臻荣徐良李海峰刘旭顾培夫艾曼灵张梅骄
Owner ZHEJIANG UNIV
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