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Lens and semiconductor light-emitting element module using same

A light-emitting element module and semiconductor technology, which is applied in the direction of semiconductor devices, semiconductor devices, optical elements, etc. of light-emitting elements, and can solve problems such as the inability to reduce the width

Inactive Publication Date: 2012-05-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the width cannot be reduced, and the collimator lens itself becomes larger

Method used

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  • Lens and semiconductor light-emitting element module using same
  • Lens and semiconductor light-emitting element module using same
  • Lens and semiconductor light-emitting element module using same

Examples

Experimental program
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Embodiment Construction

[0020] figure 1 It is an enlarged side view showing the structure of the semiconductor light emitting element module according to the embodiment of the present invention. figure 2 yes means figure 1 An explanatory diagram of the alignment of the lens of the semiconductor light emitting element module shown. Figure 3A , Figure 3B , Figure 3C respectively figure 2 Top view, left side view, front view of the lens shown. This semiconductor light emitting element module includes, for example, a light source (point light source) 1 composed of, for example, a light emitting diode (LED) mounted on a substrate (not shown), and a lens arranged in front of one side of the light emitting surface 1A of the light source 1. 2. The light source 1 composed of chip-type LEDs has a reflector. The shape of the reflector is circular in plan view, and may also be elliptical, square or polygonal. Such a semiconductor light emitting element module is incorporated in a mobile phone or the...

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PUM

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Abstract

A lens includes a light entrance surface, a light exit surface, and a side surface. The light entrance surface is disposed near or in contact with a light source. The light exit surface is provided on the side opposite the light entrance surface. The side surface has a curved total-reflection surface that totally reflects rays entered from the light entrance surface. The total-reflection surface is configured so that the rays reflected by the total-reflection surface can converge within a predetermined angle from the light exit surface.

Description

technical field [0001] The present invention relates to a lens having a light incident surface on which light from a light source enters and an output surface for irradiating the light incident on the light incident surface to an object side, and a semiconductor light emitting element module using the lens. Background technique [0002] As a light source for photographing by a camera on a mobile phone, a semiconductor light emitting element such as a light emitting diode (LED) is used as a point light source. In addition, in order to effectively utilize light emitted from a point light source such as an LED, a collimator lens that emits as much light as possible as parallel light is used (for example, refer to Patent Document 1). [0003] In the collimator lens disclosed in Patent Document 1, a concave portion is formed to form a space in which an LED can be inserted. The concave portion is surrounded by a curved first surface and a curved refractive inner wall at a positio...

Claims

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Application Information

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IPC IPC(8): F21V5/00F21V5/04G02B17/08H01L33/58
CPCG02B19/0061G02B19/0028F21V7/0091H01L33/58F21Y2101/02G02B17/0868G02B17/086F21V5/04F21Y2115/10
Inventor 大条和宏
Owner PANASONIC CORP
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