KR20140077378A - Apparatus for head mounted display using holographic optical element lens - Google Patents
Apparatus for head mounted display using holographic optical element lens Download PDFInfo
- Publication number
- KR20140077378A KR20140077378A KR1020120146115A KR20120146115A KR20140077378A KR 20140077378 A KR20140077378 A KR 20140077378A KR 1020120146115 A KR1020120146115 A KR 1020120146115A KR 20120146115 A KR20120146115 A KR 20120146115A KR 20140077378 A KR20140077378 A KR 20140077378A
- Authority
- KR
- South Korea
- Prior art keywords
- lens
- optical element
- image
- hoe
- output unit
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 62
- 210000005252 bulbus oculi Anatomy 0.000 claims description 5
- 210000001508 eye Anatomy 0.000 abstract description 4
- 238000001093 holography Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 210000003128 head Anatomy 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000255789 Bombyx mori Species 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004424 eye movement Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B27/0103—Head-up displays characterised by optical features comprising holographic elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/20—Copying holograms by holographic, i.e. optical means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B27/0103—Head-up displays characterised by optical features comprising holographic elements
- G02B2027/0109—Head-up displays characterised by optical features comprising holographic elements comprising details concerning the making of holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
- G02B2027/0174—Head mounted characterised by optical features holographic
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head mounted display apparatus, and more particularly, to an optical system of a head mounted display apparatus.
A head mounted display is a device mounted on a user's head to display a stereoscopic image and to detect movement of the head and use it in a robot or a control system. The head-mounted display has been used for military purposes because it has little eye movement and therefore not only low risk of an accident, but also has less fatigue of eyes and is applied to fighter control. However, with advances in technology, these head-mount displays are beginning to be used in a variety of areas.
2. Description of the Related Art Generally, a head mount display device forms a focus so that a virtual large screen can be formed at a certain distance using a transmissive optical system or a reflective optical system using light refraction, So that the user can see the enlarged virtual image.
In such an optical system of a head mount display, a display element is located close to the eyeball and the image needs to be magnified at a high magnification, so that a high performance optical system is required and a large number of glass lenses having a large refractive index are required. Therefore, the characteristics of such a head-mounted display device require a heavy optical structure and a complicated optical structure. Thus, it becomes difficult to manufacture a light-weight head-mounted display.
A problem to be solved by the present invention is to use a holographic optical element (hereinafter referred to as HOE) lens having a small thickness instead of the heavy and complicated optical structure of a conventional head-mounted display device, The weight of the head-mounted display device is reduced through the structure of directly projecting the silkworm.
A head-mounted display device using a holographic optical element according to the present invention includes a lens made of a holographic optical element as an optical element and an image output unit.
The HOE lens is a lens made of an optical element using the principle of holography. The HOE lens is made by using the existing diffraction grating, lens, mirror and optical filter using holography technique, and can simplify the structure. The HOE lens is disposed at a predetermined distance along the optical axis of the image light generated in the image output unit. In addition, the HOE lens refracts the image light projected from the image output unit and guides it to the user's eyeball, thereby focusing.
The video output unit is formed on the same horizontal line as the HOE lens at a predetermined distance. The image output unit projects the image light to the HOE lens, and provides the image light refracted by the HOE lens to the user. The video output unit is not limited to a specific video output device, and can be applied to any type of video output device if it can be installed in the head mount display device.
The head-mounted display device using the holographic optical element according to the present invention can employ a multi-resolution HOE lens. A head-mounted display device using a holographic optical element having a multi-resolution HOE lens has the same closed structure as the above-described device. The multi-resolution HOE lens is disposed at a predetermined distance along the optical axis of the image light generated in the image output unit. The image output unit is formed at a predetermined distance on the same horizontal line as the multi-resolution HOE lens. The image output unit projects the image light to the multi-resolution HOE lens, and provides the image light refracted by the multi-resolution HOE lens to the user.
A multi-resolution HOE lens is divided into two or more regions, each of which has a different resolution. The multi-resolution HOE lens refracts the image light projected from the
The head-mounted display device using the holographic optical element according to the present invention can simplify the weight and structure of the optical system that occupies a large portion of the weight compared with the head-mounted display using the conventional optical system, Excellent HMD can be realized. In addition, the resolution of the HOE lens of the head mount display differs depending on the area, thereby providing a high-resolution image at the center of the field of view, providing a high-quality image and providing a relatively low resolution image at the periphery, By providing a viewing angle, a user's immersion feeling can be enhanced.
1 is a configuration diagram showing a general transmissive head-mounted display device.
2 is a configuration diagram showing a general closed head-mounted display device.
3 is a block diagram showing an embodiment of a head-mounted display device using a holographic optical element according to the present invention.
4 is a block diagram showing an embodiment having multiple resolutions of a head-mounted display device using the holographic optical element according to the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms used in the present specification are terms selected in consideration of the functions and effects in the embodiments, and the meaning of the terms may vary depending on the intention of the user or the operator or industry custom. Therefore, the meaning of the term used in the following embodiments is based on the defined definition when specifically stated in this specification, and unless otherwise stated, it should be interpreted in a sense generally recognized by those skilled in the art.
Head-mounted display devices can be broadly divided into two types, see-through and closed-type.
1 is a configuration diagram showing a general transmissive head-mounted display device.
Referring to Fig. 1, a transmissive head-mounted display device comprises a
2 is a configuration diagram showing a general closed head-mounted display device.
Referring to FIG. 2, a typical closed head-mounted display device includes an
3 is a block diagram showing an embodiment of a head-mounted display device using a holographic optical element according to the present invention.
Referring to FIG. 3, a head-mounted display device using a holographic optical element (HOE) according to the present invention uses a
Since the number of optical elements is remarkably reduced due to the use of the
The head-mounted display device using the holographic optical element according to the present invention has a closed structure. The
The
4 is a block diagram showing an embodiment having multiple resolutions of a head-mounted display device using the holographic optical element according to the present invention.
Referring to FIG. 4, the head-mounted display device using the holographic optical element according to the present invention may include a
A head-mounted display device using a holographic optical element having a
The
The
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is possible.
110: HOE lens
130: Video output unit
210: Multiple resolution HOE lens
Claims (1)
A holographic optical element lens which is formed of a holographic optical element and is disposed at a predetermined distance along the optical axis of the image light projected from the image output unit and refracts the image light projected from the image output unit to guide the light to the user's eyeball, ; And
An image output unit for projecting image light to the holographic optical element lens;
And a display unit for displaying the image on the display unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120146115A KR20140077378A (en) | 2012-12-14 | 2012-12-14 | Apparatus for head mounted display using holographic optical element lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120146115A KR20140077378A (en) | 2012-12-14 | 2012-12-14 | Apparatus for head mounted display using holographic optical element lens |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140077378A true KR20140077378A (en) | 2014-06-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020120146115A KR20140077378A (en) | 2012-12-14 | 2012-12-14 | Apparatus for head mounted display using holographic optical element lens |
Country Status (1)
Country | Link |
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KR (1) | KR20140077378A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180115311A (en) * | 2016-06-21 | 2018-10-22 | 애플 인크. | Optical system for display |
KR20210130672A (en) * | 2014-09-04 | 2021-11-01 | 삼성디스플레이 주식회사 | Head mounted display apparatus |
-
2012
- 2012-12-14 KR KR1020120146115A patent/KR20140077378A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210130672A (en) * | 2014-09-04 | 2021-11-01 | 삼성디스플레이 주식회사 | Head mounted display apparatus |
KR20180115311A (en) * | 2016-06-21 | 2018-10-22 | 애플 인크. | Optical system for display |
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