Glued reflection optical lens
Through the glued reflective optical lens structure, the problem of limited interaction angle between virtual and reality in the prior art is solved, and the optical effect with high transmittance and low reflectance is achieved, meeting the virtual and reality interaction needs in the AR/VR field.
Patent Information
- Application Number
- CN202422199240.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-09
AI Technical Summary
When existing AR optical lenses realize the interaction between virtual and reality, the angle is limited and cannot be reflected according to the set line chart, resulting in poor interaction between virtual and reality.
The glued reflective optical lens structure is adopted, and the first lens layer, a glue layer, a reflective film layer and a second lens layer are included from top to bottom. The reflective film layer is plated on the second lens layer and connected to the first lens layer through the glue layer. The transmittance of the first lens layer is ≥95% @420-680nm band, the reflectance is ≤1% @420-680nm band, and the sum of the transmittance and reflectance of the reflective film layer does not exceed 1%, so that the refraction and reflection of light are realized to achieve the interaction between virtual and reality.
It realizes high transmittance and low reflectivity of light, and can effectively realize the interaction between virtual and reality in the AR/VR field, meeting the interaction needs of images, videos and 3D models.
Smart Images
Figure CN223180430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of AR optical lenses, and particularly relates to a glued reflective optical lens. Background Art
[0002] AR optical technology provides virtual information for users through technologies such as images, videos, 3D models, etc. while displaying the real scene, realizing the ingenious integration of virtual information and the real world. It is a technology that calculates the position and angle of the image in real time and adds corresponding images. The goal of this technology is to overlay the virtual world on the real world on the screen and interact with it.
[0003] The prior art uses a single lens to partially transmit and partially reflect. Although it can achieve both transmission and reflection, and the human eye can see the reflected image and the real world outside, and can achieve the delivery of virtual and real, the angle is limited, and it cannot be reflected according to the set broken line graph, and the delivery effect of virtual and real is not good. Content of the Utility Model
[0004] The purpose of the utility model is to provide a glued reflective optical lens.
[0005] The utility model provides the following technical solutions:
[0006] The utility model provides a glued reflective optical lens, which includes a first lens layer, a glue layer, a reflective film layer and a second lens layer from top to bottom. The reflective film layer is plated on the second lens layer, and the reflective film layer is connected to the first lens layer through the glue layer.
[0007] Further, the transmittance of the first lens layer ≥ 95% @ 420 - 680nm band, and the reflectivity ≤ 1% @ 420 - 680nm band.
[0008] Further, the ratio of the transmittance and reflectivity of the reflective film layer does not exceed 1.
[0009] Further, the thickness of the first lens is 2 - 4mm.
[0010] Further, the thickness of the second lens is 2 - 5mm.
[0011] Further, the thickness of the glue layer is 30μm - 50μm.
[0012] Further, the thickness of the reflective film is 300 - 500nm.
[0013] Compared with the prior art, the utility model provides a glued reflective optical lens. Light reaches the second lens layer through the first lens layer. Since a reflective film layer is plated on the second lens layer, a part of the light is refracted through the first lens layer and then reflected back to the first lens layer, and the image is magnified or reduced to the human eye through the first lens layer; another part of the light reaches the real world through the second lens layer, realizing the interaction between virtual and real. It can be applied to the AR / VR field for realizing the interaction between virtual and real, and its function can meet the interaction between conventional images, videos, 3D models and the human eye. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 FIG. is a schematic diagram of the positional relationship between the layers of the present utility model. (The shape and thickness of this figure are not for reference, and this figure is used to illustrate the relative positions of the layers.)
[0015] Figure 2 FIG. is a schematic diagram of the effect of the present utility model.
[0016] In the figure, 1 - the second lens layer; 2 - the reflective film layer; 3 - the glue layer; 4 - the first lens layer; 5 - the limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The following will further describe the present utility model in conjunction with the Figure 1 and Figure 2 drawings.
[0018] Referring to Figure 1 , in an embodiment of the present utility model, the present utility model provides a glued reflective optical lens, which includes, from top to bottom, a first lens layer 4, a glue layer 3, a reflective film layer 2 and a second lens layer 1. The reflective film layer 2 is plated on the second lens layer 1, and the reflective film layer 2 is connected to the first lens layer 4 through the glue layer 3; light reaches the second lens layer 1 through the first lens layer 4. Since the reflective film layer 2 is plated on the second lens layer 1, a part of the light is refracted through the first lens layer 4 and then reflected back to the first lens layer 4, and the image is magnified or reduced to the human eye through the first lens layer 4, and another part of the light reaches the real world through the second lens layer 1.
[0019] In the above embodiment, referring to Figure 2 , a limiting plate 5 is provided at the end of the first lens layer 4, and the limiting plate 5 extends from the end face of the first lens 4 to the end face of the second lens layer 1; when the reflective film layer 2 and the first lens layer 4 are glued through the glue layer 3, the limiting plate 5 plays a limiting role to prevent misalignment during gluing.
[0020] In an embodiment of the present utility model, the transmittance of the first lens layer is ≥95% in the wavelength band of 420 - 680 nm, and the reflectance is ≤1% in the wavelength band of 420 - 680 nm; since the sum of the transmittance and the reflectance does not reach 1, a small amount of light is absorbed and lost; the light reaches the second lens layer 1 through the first lens layer 4 with high transmittance. Since a reflective film layer 2 is coated on the second lens layer 1, a part of the light is refracted through the first lens layer 4 and then reflected back to the first lens layer 4, and the image is magnified or reduced to the human eye through the first lens layer 4.
[0021] In an embodiment of the present utility model, the ratio of the transmittance to the reflectance of the reflective film layer 2 does not exceed 1; so that the image can be reflected to the human eye, and the transmittance enables the human eye to see the real world outside, realizing the interaction between virtual and real.
[0022] In an embodiment of the present utility model, the reflective film layer 2 has a transmittance of 29% and a reflectance of 68%.
[0023] In an embodiment of the present utility model, the reflective film layer 2 has a transmittance of 18% and a reflectance of 80%.
[0024] In an embodiment of the present utility model, the reflective film layer 2 has a transmittance of 37% and a reflectance of 59%.
[0025] In an embodiment of the present utility model, the thickness of the first lens is 2 - 4 mm.
[0026] In an embodiment of the present utility model, the thickness of the second lens is 2 - 5 mm.
[0027] In an embodiment of the present utility model, the thickness of the glue layer is 30 μm - 50 μm.
[0028] In an embodiment of the present utility model, the thickness of the reflective film is 300 - 500 nm.
[0029] In practical applications, refer to Figure 2 , the light reaches the second lens layer through the first lens layer. Since a reflective film layer is coated on the second lens layer, a part of the light is refracted through the first lens layer and then reflected back to the first lens layer, and the image is magnified or reduced to the human eye through the first lens layer. Another part of the light reaches the real world through the second lens layer, realizing the interaction between virtual and real.
[0030] The embodiments of the present utility model are given for the purposes of illustration and description. Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.
Claims
1. A glued reflective optical lens, characterized in that: From top to bottom, it includes a first lens layer, an adhesive layer, a reflective film layer, and a second lens layer. The reflective film layer is plated on the second lens layer, and the reflective film layer is connected to the first lens layer through the adhesive layer.
2. The glued reflective optical lens according to claim 1, wherein: The transmittance of the first lens layer is ≥95% in the wavelength band of 420 - 680 nm, and the reflectivity is ≤1% in the wavelength band of 420 - 680 nm.
3. The glued reflective optical lens according to claim 1, characterized in that: The ratio of the transmittance to the reflectivity of the reflective film layer does not exceed 1.
4. The glued reflective optical lens according to claim 1, wherein: The thickness of the first lens is 2 - 4 mm.
5. The glued reflective optical lens according to claim 1, wherein: The thickness of the second lens is 2 - 5 mm.
6. The glued reflective optical lens according to claim 1, wherein: The thickness of the adhesive layer is 30 μm - 50 μm.
7. The glued reflective optical lens according to claim 1, wherein: The thickness of the reflective film is 300 - 500 nm.