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Optical lens

A technology of optical lenses and optical areas, which is applied in the field of optical lenses and can solve problems such as unsatisfactory illumination uniformity

Inactive Publication Date: 2013-01-09
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its performance in illumination uniformity is still not ideal. The light intensity in the middle part of the illuminated area is strong, while the surrounding part is relatively weak.

Method used

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  • Optical lens
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Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] see figure 2 and image 3 , the optical lens 1 provided by the present invention is used in a flashlight of an electronic product, which is located in front of the light source in the flashlight and cooperates with the outer surface of the electronic product. The optical lens 1 includes an effective optical area 11 and a non-effective optical area 12 located around the effective optical area 11 , the effective optical area 11 is used for light transmission, and the non-effective optical area 12 does not participate in light transmission. A plurality of micro-concave structures 112 are formed on the light emitting surface of the optical lens 1 .

[0018] Each concave surface of the plurality of micro-concave surfaces 112 is a spherical surface with a fixed radius, which plays a role in diverging light, and is designed on the light-emitting surface of the opt...

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Abstract

A lens includes an incidence surface and an emission surface. The emission surface includes an effective area and a non-effective area around the effective area. The non-effective area includes a first effective area located at the center of the effective area and a second effective area around the first effective area. The first effective area is three fifths of the effective area. A number of recesses formed on the surface of the first effective area and substantially over the entire first effective area.

Description

technical field [0001] The invention relates to an optical lens, in particular to an optical lens for a flash lamp. Background technique [0002] Today, lens modules have been widely used in various portable electronic products to achieve convenient camera functions, and in order to adapt to various light environments, people are eager to equip these electronic products with flashlights. With the advancement of technology, existing The volume of the flashlight is also being made smaller and smaller, and has been able to adapt to various miniaturized portable electronic products. [0003] Generally, the flash includes a light source. In order to ensure the effect of the emitted light, an optical lens is arranged in front of the light source. The optical lens is usually matched with the outer surface of the electronic product to protect the internal structure of the flash and make the structure of the flash not too abrupt. At the same time, The optical lens should also have t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B15/03
CPCG03B15/02G02B3/08
Inventor 林光伟叶信宗张炜修黄俊翔陈冠廷林玫君
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD