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Surface mount fresnel led micro flash structure

A technology of surface packaging and flashlight, which is applied in the field of portable electronic devices, can solve the problems of affecting image quality and inability to produce brightness, and achieve the effect of uniform illumination

Active Publication Date: 2018-09-25
LITE ON SINGAPORE PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the position where the light hits the target cannot produce uniform brightness, which may affect the quality of the image

Method used

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  • Surface mount fresnel led micro flash structure
  • Surface mount fresnel led micro flash structure
  • Surface mount fresnel led micro flash structure

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Experimental program
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Embodiment Construction

[0051] The implementation of the present invention is described below with reference to specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0052] Please refer to figure 1 , is a schematic cross-sectional view of the structure of the microcolumnar Fresnel LED miniature flash lamp of the present invention. The Fresnel LED micro flash structure of the present invention includes a housing 10 , a micro-cylindrical Fresnel lens (Fresnel lens) 20 placed on the housing 10 , and an array light source 30 placed in the housing 10 .

[0053] The housing 10 has a bottom wall 11, and a plurality of side walls 12, 14 extending upwards from the bottom wall 11 (see Figure 2A ) to form an accommodating space, the casing 10 defines a longitudinal direction (ie, along the direction of the side wall 14 ) and a width direction (ie, the direction along the side wall 12 ). ...

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PUM

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Abstract

A surface-package Fresnel LED miniature flashlight structure is suitable for mobile phone cameras, which includes a housing, an array light source and a micro-cylindrical Fresnel lens. The housing has a bottom wall and a plurality of side walls extending upward from the bottom wall to form a rectangular accommodating space. The housing defines a longitudinal direction and a width direction; the array light source is placed along the longitudinal direction On the bottom wall; the micro-cylindrical Fresnel lens covers the top of the housing, which includes a cylindrical plano-convex lens, and two toothed lens areas are located on both sides of the cylindrical plano-convex lens, each of the toothed lens areas has A plurality of bar-shaped tooth-shaped lenses; the column-shaped plano-convex lens and the plurality of bar-shaped tooth-shaped lenses are parallel to each other along the width direction; the central axis of the column-shaped plano-convex lens corresponds to the central position of the array light source. Accordingly, the present invention provides a substantially rectangular flash lighting pattern with uniform illumination.

Description

technical field [0001] The invention relates to a surface-mounted Fresnel LED miniature flashlight structure, which can be used for cameras or portable electronic devices with photographic functions, such as mobile phone cameras, especially a light source with more than two light-emitting diodes. The Fresnel flash light structure of the Fresnel lens is applied to the technical field of photography. Background technique [0002] Due to the rapid development of electronic products, many portable electronic devices already have camera lenses and LED flashlights. LED flash usually consists of single or multiple LED light sources. In order to meet the luminous flux and thin structure design, Fresnel lens (Fresnel lens) has been widely used in LED flash lighting because of its light, thin and plastic characteristics. The Fresnel lens in the prior art is usually a circular or elliptical Fresnel lens with at least one set of Fresnel zone plates on its surface, and has a complicate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/20F21K9/69F21V19/00F21V5/04G03B15/05H01L25/075H01L33/48F21Y115/10
CPCH01L2224/48091H01L2924/00014
Inventor 王又法
Owner LITE ON SINGAPORE PTE LTD