KR-102961743-B1 - LENS HOLDER, OPTICAL MODULE INCLUDING THE SAME AND EYE GLASS TYPE AUGMENTTED REALITY PROVIDING DEVICE

Abstract

The present invention provides a lens holder comprising a frame that fixes the lens by combining with the lens; and a display unit holder fixing part formed to be connected to the frame and accommodating a display unit holder, and an optical module comprising the same, and an eyeglass-type augmented reality providing device comprising the optical module.

Inventors

• 박영수
• 김재민

Assignees

• 주식회사 레티널

Dates

Publication Date

20260507

Application Date

20230309

Priority Date

20221125

Claims (20)

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8. A frame that fixes the lens by combining with the lens; and A display unit holder fixing part formed to be connected to the above frame and accommodating a display unit holder. Includes, The above-mentioned display unit holder fixing part has a foreign substance receiving part for receiving foreign substances from the outside, and A lens holder characterized in that the above foreign substance receiving portion is composed of at least one of an internal groove formed on the bottom surface of the display unit holder fixing portion and an external groove formed on the side of the display unit holder fixing portion.
9. In claim 8, A lens holder characterized by the above frame being coupled to at least a portion of the outer surface of the lens to fix the lens.
10. In claim 8, A lens holder characterized in that the above frame includes a first frame and a second frame, each extending in opposite directions along the outer surface of the lens, centered on the display unit holder fixing part.
11. In claim 8, A lens holder characterized by having a groove formed in the frame that engages with a protrusion formed on the lens.
12. In claim 8, A lens holder characterized in that the display unit holder is received and fixed in the display unit holder fixing part with the display unit positioned therein.
13. In claim 12, A lens holder characterized by having a gap formed between the display unit holder fixing part and the display unit holder so that the display unit holder can be moved or rotated within the display unit holder fixing part.
14. In claim 8, The above-mentioned display unit holder has a holder opening formed therein through which virtual image light emitted from the display unit passes, and In the above-mentioned display unit holder fixing part, an opening is formed through which virtual image light emitted from the display unit and passing through the holder opening of the display unit holder passes. A lens holder characterized in that the inner groove is formed on the outer edge of the opening.
15. In claim 14, Front and rear edges are formed on the outer edges of the front and rear sides of the opening of the display holder fixing part, and A support plate is formed on the outer side of the front and rear edge portions, spaced apart from the front and rear edge portions, and A lens holder characterized by the fact that the above internal groove is formed by the bottom surface of the support plate, the front and rear edge portions and the display portion holder fixing portion.
16. In claim 15, A lens holder characterized by having a receiving plate disposed on the outside of the support plate, extending to have an angle of inclination with respect to the protruding direction of the support plate.
17. In claim 16, A lens holder characterized by having an adhesive member applied to the bottom surface of the above-mentioned receiving plate for adhering foreign substances.
18. In claim 14, A side edge is formed on the outer edge of the side of the above-mentioned opening, and On the outer side of the above-mentioned side edge portion, a side wall is formed spaced apart from the above-mentioned side edge portion, and A lens holder characterized by the fact that the above internal groove is formed by the side wall, the side edge portion, and the bottom surface of the display portion holder fixing portion.
19. In claim 14, A lens holder characterized by having a blocking plate formed on the bottom surface of the display unit holder, which protrudes downward from the bottom surface to divert the direction of travel of foreign substances from the outside and guide them into an internal groove.
20. In claim 19, A lens holder characterized in that, when the display unit holder is placed in the display unit holder fixing part, the outer surface of the blocking plate is formed to be aligned parallel to the outer surface of the side edge part or positioned closer to the opening than the outer surface of the side edge part.

Description

Lens holder, optical module including the same, and eyeglass-type augmented reality providing device The present invention relates to a lens holder, an optical module including the same, and a glasses-type augmented reality providing device. More specifically, the invention relates to a lens holder, an optical module including the same, and a glasses-type augmented reality providing device that can significantly reduce the product defect rate by increasing manufacturing convenience and minimizing tolerances during assembly. To implement Augmented Reality (AR) or Virtual Reality (VR), an optical system is required to transmit virtual images played on a device, such as a computer, to the user's eyes. For example, an optical system for augmented reality is generally composed of a display unit that emits virtual image light, an optical module that includes an optical element for transmitting the virtual image light emitted from the display unit to the user's eye, and a lens for transmitting image light from an external real object to the eye. Since these optical modules are configured to transmit virtual image light emitted from a small display unit to the user's eye, they must be assembled with great precision. In particular, the combination of the display unit and the lens on which the optical element is placed requires very high precision. Especially in the case of a binocular optical module, when cumulative tolerances between the left and right lenses occur, the position of the display unit changes excessively from the designed position, which becomes a factor causing dipvergence and convergence failures. However, in conventional technology, when combining the display unit with the lens, a method of simply attaching the display unit to the required position on the lens and applying adhesive was used, which had the problem of being difficult to assemble and having a very high product defect rate. FIGS. 1 to 4 respectively show a perspective view, an exploded perspective view, a front view, and a side view of an optical module (100) including a lens holder (10) according to the present invention. FIG. 5 is an exploded perspective view showing the lens holder (10) and the display unit holder (20) together. FIG. 6 is a perspective view of a state in which a display unit holder (20) is placed on a lens holder (10). FIG. 7 shows the rear view of the lens holder (10) and the lens (30) together. FIGS. 8 and FIGS. 9 respectively show a perspective view and a plan view of a lens holder (10) according to an embodiment of the present invention. Figure 10 is a magnified perspective view of part L of Figure 8. FIG. 11 is a perspective view of the display unit holder (20) viewed from the bottom side. FIG. 12 is a partial cross-sectional view taken from the BB′ line of FIG. 4 with the lens holder (10) combined with the lens (30) and the display unit holder (20). FIG. 13 is a partial cross-sectional view taken from the line AA′ of FIG. 3 with the lens holder (10) combined with the lens (30) and the display holder (20). FIG. 14 is a perspective view of another embodiment of an optical module (100) including a lens holder (10) according to the present invention. FIG. 15 shows a perspective view of a binocular optical module (300). FIGS. 16 and FIGS. 17 respectively show a perspective view and a front view of an embodiment of a glasses-type augmented reality providing device (400) implemented in the form of smart glasses. Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings. First, an optical module (100) including a lens holder (10) according to the present invention will be described with reference to FIGS. 1 to 4. FIGS. 1 to 4 respectively show a perspective view, an exploded perspective view, a front view, and a side view of an optical module (100) including a lens holder (10) according to the present invention. Referring to FIGS. 1 to 4, the optical module (100) includes a lens holder (10), a display unit holder (20), a lens (30), and a display unit (40). The optical module (100) is manufactured in the form shown in FIGS. 1 to 4 and can be assembled with other parts to be manufactured into a glasses-type augmented reality providing device, such as so-called "smart glasses" in the form of glasses (see FIGS. 16 and 17). For example, by embedding the optical module (100), that is, the lens holder (10), the display holder (20), and the display (40) inside the eyeglass frame, it can be assembled into an eyeglass-type augmented reality providing device in the form of smart glasses. In addition, the lens holder (10) itself can be formed into an eyeglass frame. Additionally, the optical module (100) may be used in a form that can be attached to, for example, conventional glasses by means of a suitable attachment/detachment method. The optical modules (100) of FIGS. 1 to 4 are for monocular use for either the left or right eye, but it is also possible to co