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Optical system for dressing display

An optical system and display technology, applied in the field of optical systems, can solve the problems of reducing the divided volume of the head-mounted display, and the optical device being unsuitable for patients to use.

Active Publication Date: 2014-04-16
HANGZHOU KOTI OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution reduces the segmentation volume of the head-mounted display by focusing the image generated by a single display screen and segmenting the image near its focus, making it small and easy to integrate. However, this optical device is still not suitable for myopia, etc. Use by patients with abnormal vision

Method used

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  • Optical system for dressing display
  • Optical system for dressing display
  • Optical system for dressing display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] like figure 1 As shown, it is an optical system for wearable display, including: a display device 1 (OLED) that generates an image light signal; a 1 / 2 wave plate 2 arranged on the transmission optical path of the image light signal of the display device 1; The polarization beam splitter 3 at the output end of the / 2 wave plate 2; the first 1 / 4 wave plate 4 for receiving the image light signal (ie, the P component image light signal) passing through the polarization beam splitter 3; The image optical signal of the 1 / 4 wave plate 4 is reflected back through the reflector 5 of the first 1 / 4 wave plate 4 (embodiment 3); used to receive back through the first 1 / 4 wave plate 4 and then polarized The first lens 7 reflects the image light signal from the dichroic prism 3 . The beam-splitting surface of the polarization beamsplitter prism 3 reflects the image light signal passing through the first 1 / 4 wave plate 4 to a direction away from the human eye 8, and a second 1 / 4 wave ...

Embodiment 2

[0063] like figure 2 As shown, it is another optical system for wearable display, including: a display device 1 (OLED) that generates an image light signal; a 1 / 2 wave plate 2 set on the transmission optical path of the image light signal of the display device 1; The polarization beam splitter 3 at the output end of the 1 / 2 wave plate 2; the first 1 / 4 wave plate 4 for receiving the image light signal (ie, the P component image light signal) passing through the polarization beam splitter 3; The image light signal of a 1 / 4 wave plate 4 is reflected back through the reflector 5 of the first 1 / 4 wave plate 4 (embodiment 4 is used); for receiving it back through the first 1 / 4 wave plate 4 and then passing through the first 1 / 4 wave plate 4 The second lens 9 reflects the image light signal from the polarization splitter prism 3 . The beam-splitting surface of the polarizing beam-splitting prism 3 reflects the image light signal passing back through the first 1 / 4 wave plate 4 to th...

Embodiment 3

[0065] like image 3 As shown, it is a mirror, including a glass substrate 10 and a base layer, a high-reflection layer and a protective layer arranged on the glass substrate 10 in sequence, and a high-reflection film 19 is formed by the base layer, a high-reflection layer and a protective layer; the base layer and the glass The substrate 10 is closely attached, and the base layer includes Ti 3 o 5 Layer 11, SiO 2 Layer 12 and Al 2 o 3 Layer 13, where Ti 3 o 5 The layer 11 is closely attached to the glass substrate 10; the high-reflection layer includes a silver-copper alloy layer 14, and the silver-copper alloy layer 14 is formed by mixing 30% by weight copper and 70% by weight silver; the protective layer includes sequentially Al set 2 o 3 Layer 15, SiO 2 Layer 16 and Ti 3 o 5 Layer 17, where Al 2 o 3 Layer 15 abuts silver-copper alloy layer 14 . That is, from the glass substrate 10 along its thickness direction (direction away from the glass substrate 10), Ti ...

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Abstract

The invention discloses an optical system for dressing display. The optical system for the dressing display comprises a display device, a one second wave plate, a polarization splitting prism, a first one fourth wave plate, a reflector and a lens, wherein the display device is used for generating image optical signals, the one second wave plate is arranged on an image optical signal transmission light path of the display device, the polarization splitting prism is arranged at the output end of the one second wave plate, the first one fourth wave plate is used for receiving the image optical signals penetrating through the polarization splitting prism, the reflector is used for reflecting the image optical signals of the first one fourth wave plate back to penetrate through the first one fourth wave plate, and the lens is used for receiving the image optical signals which penetrate through the first one fourth wave plate backwards and are reflected by the polarization splitting prism. The optical system for the dressing display is small in size, convenient to integrate, capable of being used for the dressing display and capable of being adapted to observers of different levels of vision, and has broad application prospect.

Description

technical field [0001] The invention relates to the field of optical systems, in particular to an optical system for wearable display. Background technique [0002] Wearable display technology integrates input devices, sensors, detectors, wireless communication and signal processing into devices that can be embedded in people's clothing, supports gestures and eye movement operations, and other interactive methods. There is great potential in many fields such as technology, commerce and media, and it is possible to bring about substantial changes in our lives through some small applications. Therefore, wearable display technology has developed rapidly in recent years, and various wearable display devices, such as watches and glasses, have appeared in people's lives one after another. [0003] Head Mounted Display (HMD) and Heads-up Display (HUD) in wearable display devices project images or video media through micro-displays close to the eyes, inserting virtual content into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B27/28
Inventor 杨晓华郑臻荣艾曼灵金波陶占辉李小瑞
Owner HANGZHOU KOTI OPTICAL TECH
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