Short distance optical magnification module, glasses, helmet and vr system

An optical magnification, short-distance technology, applied in the field of optical instruments, can solve the problem of low experience, and achieve the effect of large eye movement range, high-quality imaging effect, and good field of view.

Active Publication Date: 2018-08-14
SHENZHEN DLODLO NEW TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An embodiment of the present invention provides a short-distance optical zoom module, glasses, a helmet, and a VR system to solve the problem of low user experience in smart VR wearable devices in the prior art

Method used

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  • Short distance optical magnification module, glasses, helmet and vr system
  • Short distance optical magnification module, glasses, helmet and vr system
  • Short distance optical magnification module, glasses, helmet and vr system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Such as figure 2 As shown, in the short-distance optical magnification module, the first focal length f2 of the second lens 20 is designed to be equal to the system focal length F, where,

[0078] The specific design parameters of the short-distance optical amplification module are shown in Table 1:

[0079]

[0080]

[0081] In Table 1, the first row OBJ represents the relevant design parameters of the object plane; the second row STO represents the diaphragm in the optical system, and the aperture is 7mm; the third row represents the reflective polarizer and the third row in the optical module A diaphragm formed by a phase retarder, the type of the diaphragm is STANDARD (standard surface), the material is PMMA, the diameter is 24.685mm, and the aspheric coefficient is 0; the fourth row and the fifth row represent the first lens, respectively The data corresponding to the first optical surface E1 and the second optical surface E2 of 10, the radius of curvature of the first...

Embodiment 2

[0089] Such as Image 6 As shown, in the short-distance optical magnification module, the focal length of the first lens 10 is designed to be 10.4F, and the first focal length f2 of the second lens 20 is equal to the system focal length of 1.5F, where,

[0090] The specific design parameters of the short-distance optical amplification module are shown in Table 3:

[0091] Surf

Type

Radius of curvature

thickness

Material

Mirror radius

Aspheric coefficient

OBJ

STANDARD

Infinity

-200

476.7014

0

STO

STANDARD

Infinity

9

9

0

2

STANDARD

Infinity

4

H-QK3L

30.04656

0

3

STANDARD

-134.133

5.996206

33.5536

0

4

STANDARD

Infinity

4

H-QK3L

47.00138

0

5

STANDARD

-99

-4

MIRROR

48.08787

0

6

EVENASPH

Infinity

-5.996206

48.07203

0

7

EVENASPH

-134.133

-4

H-QK3L

47.88681

0

8

STANDARD

Infinity

-0.2

PMMA

47.64044

0

9

STANDARD

Infinity

0

MIRROR

47.61382

0

10

STANDARD

Infinity

0.2

PMMA

47.61382

0

11

STANDARD

Infinity

4

H-QK3L

47.58719

0

12

EVENASPH

-134.133

5.996206

47.33418

0

13

EVENASPH

Infinity

4

H-QK3L...

Embodiment 3

[0100] Such as Picture 10 As shown, in the short-distance optical magnification module, the focal length of the first lens 10 is designed to be 6.7F, and the first focal length f2 of the second lens 20 is equal to the system focal length of 1.6F, where,

[0101] The specific design parameters of the short-distance optical amplification module are shown in Table 5:

[0102]

[0103]

[0104] In Table 5, the second row represents the paraxial design of PARAXIAL; the fourth row represents the relevant parameter design in the diaphragm formed by the reflective polarizer in the optical module and the first phase retarder; the sixth and seventh rows Represents the relevant parameter design of the first lens 10, wherein the second optical surface E2 of the first lens 10 is an EVENASPH aspheric surface; the eighth and ninth rows represent the relevant parameter design of the first lens 20, wherein The third optical surface E3 of the first lens 20 is an EVENASPH aspheric surface. For the ...

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PUM

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Abstract

The embodiment of the invention discloses a short range optical amplification module, glasses, a helmet and a VR system. The short range optical amplification module comprises a reflection type polaroid, a first phase delay sheet, a second lens and a second phase delay sheet; a first lens is arranged at any position on two sides of any optical element selected from the group composed of the reflection type polaroid, the first phase delay sheet, the second lens and the second phase delay sheet; the optical surface in the second lens close to the second phase delay sheet is a semi-transmissive semi-reflective layer optical surface; the first focal length f2 of the second lens meets:1F<=f2<=2F, wherein F is the system focal length of the optical amplification module. According to the invention, the parameters of the first focal length f2 influencing an optical amplification effect are refined, allowing the module to maintain smaller overall thickness at the same time of obtaining greater optical amplification effects, allowing a VR device to realize a better field angle, a larger eye movement scope and high quality imaging effects, and providing better experiences for users.

Description

Technical field [0001] The invention relates to an optical instrument, in particular to a short-distance optical amplification module, glasses, helmet and VR system. Background technique [0002] In the existing optical amplifier module structure, such as figure 1 As shown, it includes a reflective polarizer 01, a first phase retarder 02, a lens unit 03, and a second phase retarder 04 arranged in sequence. The lens unit 03 is close to the second phase retarder 04. The surface is a semi-transmissive and semi-reflective optical surface. During use, the optical image is transmitted and magnified by the lens unit 03, then reflected on the reflective polarizer 01, and then magnified twice by the lens unit 03, and finally passed through the reflective polarizer 01 Into the human eye. Further, any position on both sides of any one of the reflective polarizer 01, the first phase retarder 02, the second lens 03, and the second phase retarder 04 is also provided Other lens units that do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/28G02B27/01
Inventor 李刚汤伟平
Owner SHENZHEN DLODLO NEW TECHNOLOGY CO LTD
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