Blind zone lens
By designing a blind spot lens that uses a concave lens to reduce the size of objects in the blind spot and refract them into the driver's field of vision, the problem of blind spot observation for drivers is solved, enabling intuitive blind spot observation and safe driving, while reducing the complexity and cost of the device.
Patent Information
- Application Number
- CN202423266474.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When driving, drivers often encounter blind spots, making it difficult to respond promptly to traffic hazards. Existing blind spot observation systems are complex, costly, and provide unintuitive images, making them difficult to install on vehicles.
Design a blind spot lens that uses a concave lens to reduce the size of objects in the blind spot and refract them into the driver's field of vision. The lens projects light from the blind spot onto the driver through a circular, elliptical, or polygonal lens. It is made of glass, crystal, or resin material and has a continuously variable focal length. The lens can be used alone or stacked with a prism.
It enables drivers to directly observe objects in blind spots, expands their field of vision, reduces traffic safety hazards, and has a simple structure and low cost.
Smart Images
Figure CN223611734U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a blind area observation device for a vehicle. BACKGROUND
[0002] When a driver drives a vehicle, there is a blind area in the observation area of the driver due to the structural limitations of the vehicle, which makes it difficult for the driver to observe the dynamic of the blind area and respond in time, and there is a potential safety hazard in driving. Most of the existing blind area observation systems or sensing systems for vehicles use electronic imaging, radar detection and other methods, and the structure of the device is complex, the cost is high, and the image is not intuitive. It is difficult to install a blind area observation system on a vehicle later. SUMMARY
[0003] The purpose of the present application is to provide a blind area lens that can directly observe the blocked area.
[0004] The technical solution of the present application is: a blind area lens for observing the blind area of a vehicle, which is a lens prepared with a template obtained by projecting a circle, an ellipse, or any polygon along the main optical axis direction of a concave lens to the lens body intercepted by the concave lens without the optical center area. The blind area lens reduces the image of the scene and refracts the light of the blind area scene to the driver, allowing the driver to observe the scene and event dynamics of the blind area to respond in time and avoid traffic hazards.
[0005] The template for preparing the blind area lens is intercepted from a plano-concave lens, a double-concave lens, or a Fresnel lens.
[0006] The material for preparing the blind area lens is glass, crystal, resin, or soft gel.
[0007] Further, the blind area lens is provided with a continuously changing focal length.
[0008] Further, the blind area lens is composed of two pieces of the blind area lens stacked together, or one piece of the blind area lens and one piece of a triple prism lens stacked together.
[0009] The problem solved by the present application is that the blind area lens uses a concave lens to reduce the blind area scene and expand the observation field of view, while the local concave lens refracts the light in the same direction, and the blind area scene light is projected to the driver according to the planned path, achieving the purpose of the driver directly observing a larger blind area. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is a schematic diagram of using a quadrilateral to project the template to a double-concave lens, and the blind area lens of the present application is prepared with 2 as the template.
[0011] Figure 2 is a schematic diagram of using a quadrilateral to project the template to a plano-concave lens, and the blind area lens of the present application is prepared with 4 as the template.
[0012] Figure 3 is a schematic diagram of the template of the present application prepared by projecting the quadrilateral to the Fresnel lens.
[0013] Figure 4 is a schematic diagram of the light path of the present application prepared by the template of the present application prepared by the biconcave lens.
[0014] Figure 5 is a schematic diagram of the light path of the present application prepared by the template of the present application prepared by the plano-concave lens.
[0015] Figure 6 is a schematic diagram of the light path of the present application prepared by the template of the present application prepared by the Fresnel lens.
[0016] Figure 7 is a schematic diagram of the light path of the present application prepared by the template of the present application prepared by the Fresnel lens.
[0017] Figure 8 is a schematic diagram of the light path of the present application prepared by the template of the present application prepared by the Fresnel lens.
[0018] Figure 9 is an example of the application of the present application.
[0019] In the figure: 1, biconcave lens; 2, template cut from the biconcave lens; 3, plano-concave lens; 4, template cut from the plano-concave lens; 5, Fresnel lens; 6, template cut from the Fresnel lens; 7, blind area lens prepared by the template cut from the biconcave lens; 8, blind area lens prepared by the template cut from the plano-concave lens; 9, blind area lens prepared by the template cut from the Fresnel lens; 10, one of the blind area lenses; 11, the second blind area lens; 12, the third blind area lens; 13, the three-prism lens. DETAILED DESCRIPTION
[0020] The following specific embodiments are a description of the technical solutions described in the claims of the present application, so that the skilled person can accurately understand the content described in the claims of the present application.
[0021] In specific implementation, the blind area lens is prepared with glass, crystal, resin and soft gel as the material. The use of resin material to prepare the blind area lens is the preferred solution, especially the Fresnel lens prepared with resin material to prepare the blind area piece is more economical and practical.
[0022] In specific implementation, the shape of the blind area lens can be circular, elliptical or any polygon.
[0023] In specific implementation, the blind area lens is set to different focal lengths according to the position of the observer and the range and distance of the blind area to be observed.
[0024] In practice, the blind area lens is divided into regions and each region is provided with a continuously varying focal length as required.
Claims
1. A blind zone lens, characterized by, The lens is prepared by projecting a circle, an ellipse or any polygon along the main optical axis of the concave lens to the mirror body intercepted by the concave lens without the light center area.
2. The blind zone optic of claim 1, wherein The template for preparing the blind area lens is intercepted from a plano-concave lens, a double-concave lens or a Fresnel lens.
3. The blind zone optic of claim 2, wherein The material for preparing the blind area lens is glass, crystal, resin or soft gel.
4. The blind zone optic of claim 2, wherein The focal length of the blind area lens is continuously and gradually changed.
5. The blind zone optic of claim 2, wherein The blind area lens is composed of two pieces of the blind area lens.
6. The blind zone optic of claim 2, wherein The blind area lens is composed of one piece of the blind area lens and one piece of a triple prism lens.