Optical eyepiece lens and head-mounted display device

A technology of eyepiece and lens, which is applied in the field of head-mounted display equipment and its optical eyepiece lens, can solve the problems of product weight, large size, and high cost, and achieve the effects of improving user experience, excellent imaging quality, and good optical performance

Active Publication Date: 2018-06-15
CHONGQING ORGANIC POLYTRON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing optical eyepiece system using a multi-lens combination can have good optical performance and imaging quality, its size is large and heavy, which cannot meet the requirements of miniaturization of equipment, and most of them use glass lenses. The cost is high and the product is heavy, which reduces the user experience

Method used

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  • Optical eyepiece lens and head-mounted display device
  • Optical eyepiece lens and head-mounted display device
  • Optical eyepiece lens and head-mounted display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Such as figure 1 As shown, the optical eyepiece lens of this embodiment includes a diaphragm 2, a first lens 3, a second lens 4, a third lens 5, and a fourth lens in sequence from the image side to the object side along the optical axis I. Lens 6, a fifth lens 7 and a protective glass 8, the first lens 3, the second lens 4, the third lens 5, the fourth lens 6 and the fifth lens 7 all have refractive power, and respectively include a An image side facing the image side and allowing the imaging light to pass through, and an object side facing the object side and allowing the imaging light to pass through.

[0074] The aperture (aperture stop) 2 is an equivalent aperture, and the entity of this part may not be provided in practical applications. The aperture stop 2 is arranged on the optical axis I of the first lens 3 facing the image side, and is located The position of the exit pupil of the optical eyepiece lens. The protective glass 8 is arranged on the optical axis I...

Embodiment 2

[0091] Such as Figure 5 As shown, each lens structure of this embodiment is basically the same as Embodiment 1, the difference is that the optical parameters and aspheric coefficients of each lens of this embodiment are different from Embodiment 1, and the optical parameters of each lens of this embodiment and aspherical coefficients are shown in Table 3 and Table 4 respectively

[0092] Table three, each lens optical parameter data of the second embodiment

[0093]

[0094]

[0095] Table four, the aspherical parameters of the second embodiment

[0096] noodle

K

a2

a4

a6

a8

a10

a12

like profile 31

-

0

-

-

-

-

-

object side 32

-0.109

0

-9.22E-06

2.82E-07

2.74E-10

5.01E-12

4.86E-14

like side 41

-0.104

0

4.29E-05

-5.88E-08

8.06E-10

2.71E-12

5.45E-14

object side 42

89.795

0

-4.16E-05

-5.05E-09

-2.04E-10

-8.13E-13

1.04E-14

lik...

Embodiment 3

[0102] Such as Figure 9 As shown, each lens structure of this embodiment is basically the same as Embodiment 1, the difference is that the optical parameters and aspheric coefficients of each lens of this embodiment are different from Embodiment 1, and the optical parameters of each lens of this embodiment and aspheric coefficients are shown in Table 5 and Table 6 respectively

[0103] Table five, each lens optical parameter data of the third embodiment

[0104]

[0105]

[0106] Table six, aspherical parameters of the third embodiment

[0107] noodle

K

a2

a4

a6

a8

a10

a12

like profile 31

-

0

-

-

-

-

-

object side 32

0.077

0

2.30E-05

-3.17E-08

-4.52E-10

-1.79E-12

2.16E-14

like side 41

0.383

0

-1.63E-05

3.46E-08

-2.88E-10

-4.31E-13

1.71E-14

object side 42

5.337

0

-3.77E-05

2.68E-08

3.19E-10

-3.55E-13

7.95E-17

like profile 5...

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PUM

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Abstract

The invention relates to a head-mounted display device and its optical eyepiece lens. The invention discloses an optical eyepiece lens, which sequentially includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens with refractive power along the optical axis from the image side to the object side, each lens Respectively comprising an image side facing the image side and allowing the imaging light to pass through and an object side facing the object side and allowing the imaging light to pass through; the first lens, the third lens and the fourth lens are positive lenses; the second lens and the fifth lens are negative lenses; the first lens to the fifth lens are all aspherical lenses; and the materials of the first lens to the fifth lens are all plastic. The invention also discloses a head-mounted display device with the optical eyepiece lens. The present invention provides an optical eyepiece lens and a head-mounted display device with thinner, lighter, lower-cost characteristics while maintaining good optical performance, thereby improving user experience.

Description

technical field [0001] The present invention relates to a head-mounted display device and its optical eyepiece lens, and in particular to a head-mounted display device using a five-piece lens and its optical eyepiece lens. Background technique [0002] In recent years, due to the rise of wearable electronic devices, miniaturized display modules including optical lens systems and microdisplays have flourished, and are widely used in head-mounted display devices. Head-mounted display devices are widely used in military, aerospace, medical, entertainment, simulation training and other fields. As head-mounted display devices are more and more widely used, the requirements for imaging quality are getting higher and higher, and the imaging quality mainly depends on the optical eyepiece system. [0003] In order to improve the optical performance and imaging quality of the optical eyepiece system, in the prior art, a combination of multiple lenses is often used for realization. Fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B25/00G02B27/01
CPCG02B1/041G02B13/0045G02B25/001G02B27/0101G02B27/0172G02B2027/011
Inventor 付承李德秋
Owner CHONGQING ORGANIC POLYTRON TECH
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