TW201317628A - One-dimensional scanning type pupil projection display device - Google Patents

Abstract

The object of the present invention is to disclose a one-dimensional scanning type pupil projection display device, which comprises an image scanning section, and a crucial optic element. The image scanning section comprises a system light source, an image development device, a mechanical one-dimensional scanner, a splitter, and a lens set. The system light source projects received image information in a homogenous form through a light homogenization member to pass through the splitter to be deflected toward the image development device. The image development device receives the image information and generates an image. The image development device projects the image through a lens set to the one-dimensional scanner. The one-dimensional scanner reflects the image to the crucial optic element, and the crucial optic element diffracts the received image to form an image on the pupil of a user.

Description

One-dimensional scanning pupil projection display device

The invention relates to a one-dimensional scanning type pupil projection display device, which is an imaging projection device which can be seen through the surrounding environment and high photon utilization.

According to the modern science, as the technology grows stronger and stronger, it gradually pays attention to its leisure and recreation. The image can bring shock and feelings more and more attention, regardless of the comfort, presence, convenience and privacy of viewing... All are indispensable conditions. In addition, many people spend their time playing games, mobile phones, tablet games or watching information and videos online while waiting for time, but long-term holding game consoles, mobile phones, tablets Computers watch video information, and the hands and neck are prone to overuse and soreness. If you use your game console, mobile phone, or tablet computer while walking, it is dangerous.

The imaging device of the conventional technology is a head-mounted display device, which can be worn on the head or in front to display an enlarged virtual image through the imaging device, and the user can use the device to achieve the sense of presence and privacy in space and time, and can be carried and used without being carried. Limited to the space and posture, it can also be combined with a game machine or other projection device, such as carrying a large screen to watch; however, the conventional imaging device uses the image information presented by the reflective lens reflection panel or the optical light guiding element to image the pupil. However, such an imaging device cannot be used to restrict the use conditions when it is used, and thus the manufacturer uses the light-splitting element or the optical light-guiding element to make the overall system visible to the outside environment, but wastes unnecessary photons during the imaging process. The energy causes low photon utilization of the image, so it is necessary to develop an imaging device that can penetrate the surrounding environment and improve photon utilization.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a one-dimensional scanning type pupil projection display device which can improve the conventional imaging device from being invisible to the surrounding environment and low photon utilization.

In order to achieve the above objects and effects, the one-dimensional scanning type pupil projection display device of the present invention comprises an image scanning portion and a key optical component, wherein:

The image scanning unit comprises a system light source, a developing device, a mechanical one-dimensional scanner, a beam splitter and a lens group. The light source of the system is uniformly projected through a light uniform to be deflected to a received image via a beam splitter. A developer produces a picture on the developer, through which the developer projects the image onto a one-dimensional scanner, and the one-dimensional scanner reflects the image of the specific angle and wavelength scanned onto the critical optical component, and the key optical component receives the diffraction The image is imaged by the user's pupil.

In this way, the image light is projected by the system light source to the display to generate a picture, and the angle and wavelength of the scanning picture are reflected by the one-dimensional scanner, so that the key optical component can be diffracted into the pupil of the user for imaging.

The light source of the system is a plurality of light-emitting diodes of different wavelengths combined with white light-emitting diodes of mixed light, and the light source of the system can be (red, green, blue), (red, green, green, blue), (red, The green, yellow, blue or blue light excites the fluorescent single powder or the double powder; the light uniform of the present invention is a light guiding tube, so that the light source is uniformly projected to the display.

The light homogenizer of the present invention is a diffusion sheet that allows the light source to be uniformly projected onto the display.

The light uniformity of the present invention is a combination of a diffusion sheet and a light guide tube, so that the light source can be uniformly projected onto the display.

The one-dimensional scanner of the present invention can continuously rotate or oscillate.

The one-dimensional scanner of the present invention is a reflective sheet, and the reflective sheet receives the screen light source generated by the developing device and is reflected onto the critical optical element.

The key component of the present invention is a holographic optical component. The key component has wavelength and angle selectivity, and the key component is matched with the diffraction angle and wavelength of the one-dimensional scanner for diffraction under special conditions.

Therefore, the present invention is a relatively practical and progressive invention by using a one-dimensional scanner and a key optical component, and the imaging device has a visual and high photon utilization rate, which is quite worthy of promotion by the industry. And publicized to the public.

The present invention relates to a one-dimensional scanning type pupil projection display device, which is an imaging device that can be seen through the surrounding environment and high photon utilization. Referring to the first figure, it is a first embodiment of the present invention. The scanning unit 1 includes a system light source 10, a developing device 11, a mechanical one-dimensional scanner 12, a lens group 13, and a beam splitter 14. The system light source 10 (in this embodiment, the light-emitting diode is mixed with light). The white light emitting diode) uniformly projects the received image information at a fixed wavelength through the light uniform 101 (the light guide tube in this embodiment) via a beam splitter 14 to the developing device 11 (the embodiment is a reflection) The lens panel is deflected by the beam splitter 14 and transmitted through the lens group 13 to the one-dimensional scanner 12. The one-dimensional scanner 12 reflects the image onto the critical optical component 2, and the key optical component 2 is diffracted. The image is imaged to the user's pupil 3 .

Referring to the second embodiment, which is a second embodiment of the present invention, the system light source 10 uniformly projects the received image information at a fixed wavelength through the light uniform 101 to be deflected to the developing device 11 via the beam splitter 14, which is 11 may be a reflective lens panel or an optical light guiding component (in this embodiment, a reflective lens panel), and the developing device 11 receives an image information generating screen, and the image is transmitted through the lens group 13 to the one-dimensional scanner 12, and the one-dimensional scanner 12 reflects From the picture to the critical optical element 2, the critical optical element 2 is imaged by diffracting the received picture to the user's pupil 3.

Please refer to the third embodiment, which is a third embodiment of the present invention, wherein the main components and devices are the same as those of the first embodiment, and will not be described again. Only for different structures, the system light source 10 is blue-excited. Fluorescent single powder or blue light excitation white light emitting diode of fluorescent double powder.

Please refer to the fourth embodiment, which is a fourth embodiment of the present invention, wherein the main components and devices are the same as those of the second embodiment, and will not be described again. Only for different structures, the system light source 10 is blue-excited. Fluorescent single powder or blue light excitation white light emitting diode of fluorescent double powder.

The aforementioned system light source 10 can be (red, green, blue), (red, green, green, blue), (red, green, yellow, blue), etc., different wavelengths of light emitting diodes, mixed light white light The diode, or a white light emitting diode that emits a fluorescent single powder or a blue light-emitting fluorescent double powder, can project the received image information to the developing device 11 through different light emitting diode patterns.

The aforementioned system light source 10 mode is a Lambertian Light Source, and the radiant light waves from the different light emitting diodes are uniformly projected onto the display 11 through the light uniformity 101.

The light uniformity member 101 may be a light pipe or a diffusion sheet or a light pipe combined with a diffusion sheet, so that the system light source 10 is transmitted through the light uniform member 101 to uniformly project the received image information to the developing device 11 through a beam splitter 14. .

The one-dimensional scanner 12 is a reflection plate that reciprocates or rotates at a fixed angle of a mechanical axis. The one-dimensional scanner 12 continuously receives and reflects the light source to the developing device 11 in a fixed angle range, and the one-dimensional scanner 12 Receiving and reflecting the picture light source at different angles, adjusting the angle of incidence and exit of the light source, thereby affecting the picture generated on the key optical element 2.

The above-mentioned key component 2 is a holographic optical component, and the holographic optical component is small in size, light and thin, and has wavelength selectivity and angular selectivity, and has the characteristics of single source and single wavelength of light source, and thus different wavelengths affect the diffraction image. The angle of the light source, which in turn affects the imaging of the user's pupil 3.

In this way, the fixed-wavelength and various angles of the picture light source are reflected by the one-dimensional scanner 12 to the key optical element 2, and the key optical element 2 circulates the picture light source to the user's pupil 3 so that the picture light source is not reflected or refracted by the ... Other photon transfer methods waste photon energy, thereby increasing photon utilization, and the picture source is diffracted to the user's pupil 3 to form a clear image.

Referring to the fifth and sixth figures, the one-dimensional scanning type pupil projection display device can be mounted on the eyeglass structure, the image scanning portion 1 is disposed in a casing 4, and the key optical component 2 is disposed in front of the lens 5. In this way, the image scanning unit 1 projects the light source of the screen onto the key optical element 2, and the key optical element 2 is formed by imaging the light source through the lens 5 to the user's pupil 3, and the user can wear the glasses device in any space and environment at any time. Then, the required screen information is viewed through the glasses device, and the glasses device is visible to the surrounding environment, so that the user can view the surrounding information content at the same time.

The above description is only intended to explain the preferred embodiments of the present invention, and is not intended to limit the invention in any way. The changer should still be included in the scope of the intention of the present invention.

In summary, the "one-dimensional scanning type pupil projection display device" of the present invention is practically and cost-effectively required to fully meet the needs of industrial development, and the disclosed structural invention has an unprecedented innovative structure, so Its "novelty" should be undoubtedly considered, and the invention can be more effective than the conventional structure, so it is also "progressive", which fully complies with the requirements of the application requirements of the invention patents of the Chinese Patent Law. Patent applications, and please ask the bureau for an early review and give affirmation.

1. . . Image scanning department

10. . . System light source

101. . . Light uniform

11. . . Developer

12. . . One-dimensional scanner

13. . . Lens group

14. . . Beam splitter

2. . . Critical optical component

3. . . pupil

4. . . case

5. . . lens

The first figure is a schematic view of a first embodiment of the present invention.

The second drawing is a schematic view of a second embodiment of the present invention.

The third figure is a schematic view of a third embodiment of the present invention.

The fourth figure is a schematic view of a fourth embodiment of the present invention.

The fifth figure is a schematic view of the structure of the present invention installed on the glasses.

The sixth drawing is a schematic diagram of the state of use of the user of the present invention.

1. . . Image scanning department

10. . . System light source

101. . . Light uniform

11. . . Developer

12. . . One-dimensional scanner

13. . . Lens group

14. . . Beam splitter

2. . . Critical optical component

3. . . pupil

Claims (6)

A one-dimensional scanning type pupil projection display device includes an image scanning unit and a key optical component, wherein the image scanning unit comprises a system light source, a developing device, a mechanical one-dimensional scanner, and a beam splitter. And a lens group, the light source of the system uniformly projects the received image information through a light uniform to be deflected to the developing device via the beam splitter, and the developing device receives the image information generating screen, and the developing device projects the image through the lens group to the one-dimensional scanning The one-dimensional scanner reflects the image onto the critical optical component, and the critical optical component diffracts the received image to the user's pupil for imaging. According to the one-dimensional scanning type pupil projection display device according to the first aspect of the patent application, the system light source can be a plurality of light-emitting diodes of different wavelengths combined with a white light-emitting diode. According to the one-dimensional scanning type pupil projection display device of the first aspect of the patent application, the light uniform member is a light pipe or a diffusion sheet or a combination of the two. According to one of the scanning type pupil projection display devices described in claim 1, the one-dimensional scanner can be continuously rotated or oscillated. A one-dimensional scanning pupil projection display device according to the fourth aspect of the patent application, the one-dimensional scanner is a reflection sheet. According to the one-dimensional scanning type pupil projection display device described in claim 1, the key optical element is a holographic optical element.