Ocular lens

A technology of eyepieces and lenses, applied in the field of eyepieces, can solve the problems of unfavorable eyepiece miniaturization, long working distance, etc., and achieve the effect of high imaging quality and short working distance

Active Publication Date: 2018-07-20
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, due to the limitation of magnification, the conventional VR eyepiece usually has a long working distance, which is not conducive to the miniaturization of the overall eyepiece, and is not suitable for miniaturized VR equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Refer to the following figure 1 with figure 2 An eyepiece according to Embodiment 1 of the present application is described. figure 1 A schematic structural view of the eyepiece according to Embodiment 1 of the present application is shown.

[0057] Such as figure 1 As shown, the eyepiece according to the exemplary embodiment of the present application includes sequentially along the optical axis from the human eye side to the image source side: a stop STO, a reflective polarizer RL, a 1 / 4 wave plate L, a first lens E1, a filter Light sheet E2 and image source surface S15.

[0058] The first lens E1 has positive refractive power, its side near the human eye is convex, and the side near the image source is convex, and the side of the first lens E1 near the human eye is a Fresnel surface, and the side near the image source is aspherical. Wherein, a layer of semi-transparent and semi-reflective optical film is coated on the side near the image source of the first lens...

Embodiment 2

[0073] Refer to the following Figure 3 to Figure 4 An eyepiece according to Embodiment 2 of the present application will be described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. image 3 A schematic structural view of the eyepiece according to Embodiment 2 of the present application is shown.

[0074] Such as image 3 As shown, the eyepiece according to the exemplary embodiment of the present application includes sequentially along the optical axis from the human eye side to the image source side: a stop STO, a reflective polarizer RL, a 1 / 4 wave plate L, a first lens E1, a filter Light sheet E2 and image source surface S15.

[0075] The first lens E1 has positive refractive power, its side near the human eye is convex, and its side near the image source is convex, and the first lens E1's side near the human eye and the side near the image source are both aspherical. Wherein, a la...

Embodiment 3

[0085] Refer to the following Figure 5 with Image 6 An eyepiece according to Example 3 of the present application will be described. image 3 A schematic structural view of the eyepiece according to Embodiment 3 of the present application is shown.

[0086] Such as Figure 5 As shown, the eyepiece according to the exemplary embodiment of the present application includes sequentially along the optical axis from the human eye side to the image source side: a stop STO, a reflective polarizer RL, a 1 / 4 wave plate L, a first lens E1, a filter Light sheet E2 and image source surface S15.

[0087] The first lens E1 has positive refractive power, its side near the human eye is convex, and its side near the image source is convex, and the first lens E1's side near the human eye and the side near the image source are both aspherical. Wherein, a layer of semi-transparent and semi-reflective optical film is coated on the side near the image source of the first lens E1, and the semi-...

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Abstract

The invention discloses an ocular lens. The ocular lens comprises a reflective polaroid, a 1/4 wave plate and a lens set with positive focal power from a human eye side to an image source side in sequence along an optical axis, wherein the lens set comprises one or more lenses, and an aspherical mirror surface of any lens is plated with semi-permeable and semi-reflective optical thin film, and thedistance Lm between the reflective polaroid and the semi-permeable and semi-reflective optical thin film on the optical axis and the distance Ld between the reflective polaroid and an image source plane of the ocular lens on the optical axis satisfy the condition that Lm/Ld is larger than 0.25 and smaller than 0.75.

Description

technical field [0001] The present application relates to an eyepiece, in particular to a folding eyepiece for virtual reality (VR) visual optical system imaging. Background technique [0002] In recent years, with the advancement of technology and the needs of social and economic development, virtual reality (VR) technology has developed rapidly. On the one hand, conventional VR eyepieces usually have a long working distance due to the limitation of magnification, which is not conducive to the overall miniaturization of the eyepiece, and is not suitable for miniaturized VR equipment. On the other hand, the VR eyepiece is a core component of a virtual reality head-mounted display (HMD) device, and its imaging quality directly affects the user experience of the HMD device. [0003] Therefore, there is a need for a VR eyepiece that is applicable to HMD devices and has thinner, lighter and higher imaging quality. Contents of the invention [0004] The present application pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B25/00G02B27/01G02B27/28G02B1/04
CPCG02B1/041G02B25/001G02B27/0172G02B27/28
Inventor 宋立通
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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