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Optical system, optical lens and construction method thereof

A technology of optical lens and optical axis, which is applied in the field of optical systems and can solve problems such as complex configuration of optical modules

Inactive Publication Date: 2020-05-08
DEPO AUTO PARTS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these lenses can only provide a fixed single focal point, and it is easy to make the configuration of optical modules more complicated when multiple optical modules are used in headlights

Method used

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  • Optical system, optical lens and construction method thereof
  • Optical system, optical lens and construction method thereof
  • Optical system, optical lens and construction method thereof

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Embodiment Construction

[0035] The positional relationships described in the following embodiments include: up, down, left and right. Unless otherwise specified, they are all based on the directions in which the components are drawn in the drawings.

[0036] See first figure 1 and Figure 1A The optical lens of the first embodiment provided by the present invention has a body 2, and an opposite light input surface 3 and a light output surface 4, the body 2 of the optical lens is provided with a virtual optical axis Ax as the Z axis at the same time Through the light input surface 3 and the light output surface 4, the Z axis and the light output surface have a center point M, and the body 2 of the optical lens is also provided with a virtual X axis and a Y axis perpendicular to each other and perpendicular to the Z axis, forming a right angle of XYZ Coordinate System. There are two first intersection points n between the X axis and the light output surface 4 in the positive direction and the negativ...

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Abstract

The invention provides an optical system, an optical lens and a construction method thereof. The optical lens is provided with a virtual optical axis which serves as a Z axis and penetrates through alight output surface of the lens, an X axis and a Y axis which are perpendicular to the Z axis and are mutually perpendicular are defined, so that a central point, two first intersection points and two second intersection points are respectively generated on the light output surface and the Z axis, the X axis and the Y axis, four curves are respectively formed between the central point on the light output surface and the first intersection points and the second intersection points, and the curves all accord with a unary quadratic polynomial curve. Therefore, the focus of the optical lens can be adjusted through a formula of the unary quadratic polynomial curve, and the light emitted by the light source and penetrating through the optical lens forms a required light shape.

Description

technical field [0001] The present invention relates to an optical system, an optical lens and its construction method, more precisely, it relates to an astigmatic optical lens and its construction method which are combined with an LED light source to form a vehicle optical system, and its construction method satisfies multiple vehicle lighting requirements. need. Background technique [0002] In order to save energy, most of the optical modules are currently formed by multiple LED light sources, and a spherical or single-curvature lens is arranged on the light emitting surface of the LED light source to project an appropriate light shape and brightness that meet the needs. However, these lenses can only provide a fixed single focal point. If multiple optical modules are used in automotive headlights, it is easy to make the configuration of the optical modules more complicated. [0003] Therefore, the inventors have accumulated many years of practical experience in related ...

Claims

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Application Information

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IPC IPC(8): G02B3/00G02B27/00
CPCG02B3/00G02B27/0012
Inventor 谢孟宏
Owner DEPO AUTO PARTS IND