KR20140091877A

KR20140091877A - Light Pipe Lens

Info

Publication number: KR20140091877A
Application number: KR1020130003882A
Authority: KR
Inventors: 강성택
Original assignee: 주식회사 히타치엘지 데이터 스토리지 코리아
Priority date: 2013-01-14
Filing date: 2013-01-14
Publication date: 2014-07-23

Abstract

According to the present invention, a light pipe lens, for example, comprises a beam incident layer, a beam penetration layer, and a beam projection layer so as to project a beam, emitted from a light emitting device such as an LED, to the outside. On the surface of the beam projection layer, saw-teeth-like shapes are formed. On both sides of the beam penetration layer, an angle of inclination on which step-like shapes are formed is arranged. Therefore, a beam leakage phenomenon of the beam leaking through the both sides of the beam penetration layer to the outside can be prevented. Moreover, a gradation phenomenon that brightness on a peripheral side of the LED gradually decreases compared to the brightness of the center of the LED can be efficiently prevented. Therefore, a user can accurately check a state of light emission of the LED.

Description

Light pipe lens {Light Pipe Lens}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light pipe lens, for example, installed on a front panel of an electronic apparatus such as an archive system.

2. Description of the Related Art Generally, electronic devices that perform various functions and operations include, for example, a display panel for displaying a current operation state, a front panel, a rear panel, a side panel, Or the like.

The display panel provided on the front surface of the electronic apparatus is referred to as a front panel, the display panel provided on the rear surface is referred to as a rear panel, the display panel provided on the side surface is referred to as a side panel Side Panel).

FIG. 1 shows an embodiment in which a front panel is installed on a front surface of a general archive system. For example, in the front panel 10 of the archive system 100, a first single-board computer SBC1 And two LEDs (LEDs) for indicating the operating state of the second single-board computer SBC2.

1, the front panel 10 includes two LEDs for indicating the operation states of the first hard disk drive HDD1 and the second hard disk drive HDD2, Six LEDs for displaying the operation states of the first to sixth optical disc drives ODDA1, ODDA2, ODDA3, ODDB1, ODDB2 and ODDB3 may be arranged at regular intervals.

2, a light pipe lens 20 (Light Pipe Lens), which is manufactured in the form of a module, is mounted on the front end of a plurality of LEDs provided on the front panel 10, Can be installed.

The module type light pipe lens 20 includes, for example, a beam incidence layer 21 for projecting a beam emitted from each of the eight LEDs to the outside, A layer 22, and a beam projection layer 23.

That is, the diffusion beam emitted from each LED is incident on the beam incident layer 21 of the light pipe lens 20, passes through the beam passing layer 22 and the beam projection layer 23 in turn The user can easily check the current operation state by confirming whether or not the LED provided on the front panel 10 emits light.

3, when the surface of the beam incident layer 21 of the light pipe lens and the surface of the beam transmitting layer 23 are simply plate-shaped, the light emitted from each LED (LED) The central portion of the diffused beam is linearly transmitted through the light pipe lens and is normally transmitted, but the outer portion of the diffused beam leaks outward through both sides of the beam passing layer 22 do.

Accordingly, as shown in FIG. 4, the center of each of the LEDs displayed on the front panel 10 is bright while the periphery thereof is gradually darkened. As a result, The light emitting state of the light emitting diode can not be precisely confirmed.

The present invention relates to a method for efficiently suppressing a gradation phenomenon in which the ambient brightness of an LED displayed on a front panel or the like of an electronic apparatus such as an archive system becomes gradually darker than a center brightness, To provide a light pipe lens for use.

A light pipe lens according to the present invention is a light pipe lens for incident and passing a beam emitted from a light emitting device and projecting the beam to the outside, wherein the light pipe lens comprises a beam incident layer, a beam passing layer and a beam projection layer , Sawtooth shapes are formed on the surface of the beam projection layer, and both side surfaces of the beam passage layer have an inclination angle at which stepped shapes are formed,

Further, in the surface of the beam incident layer, longitudinal or transverse sawtooth shapes are formed with respect to the major axis,

Further, the surface of the beam incident layer is characterized by being a plane shape,

Further, in the surface of the beam-projecting layer, longitudinal or transverse saw-tooth shapes are formed with respect to the major axis,

In addition, the light pipe lens is fabricated as one module type in which the diffusion beams emitted from the plurality of light emitting devices are individually incident and passed through and projected to the outside,

In addition, the beam projected through the beam projection layer is dispersed by sawtooth shapes formed on the surface of the beam projection layer,

In addition, the beam reflected internally by the sawtooth shapes formed on the surface of the beam projection layer is re-reflected by the step shapes formed on both side surfaces of the beam passage layer.

The light pipe lens according to the present invention is composed of a beam incident layer, a beam passing layer, and a beam projection layer for projecting a beam emitted from a light emitting device such as an LED, for example, It is possible to prevent the beam leakage phenomenon in which the beam leaks out through both side surfaces of the beam passing layer by forming sawtooth shapes on the surface of the beam passing layer and having inclined angles formed with stepped shapes on both sides of the beam passing layer In addition, since the brightness of the surroundings of the LEDs can be effectively suppressed, the user can precisely check the light emission state of the LEDs .

1 shows an embodiment in which a front panel is installed on a front surface of a general archive system,
2 is a perspective view of a general light pipe lens,
3 shows an embodiment in which a beam is leaked through the outside of a general light pipe lens,
FIG. 4 is a view showing an embodiment in which the front panel of the general archive system generates the phenomenon of the radial phenomenon,
5 and 6 are perspective views of a light pipe lens according to the present invention,
7 is a side view of a light pipe lens according to the present invention,
8 shows an embodiment in which the beam of the LED is projected to the outside through the light pipe lens according to the present invention,
9 shows an embodiment in which the front panel of the archive system to which the present invention is applied is suppressed from being radiated,
10 illustrates an embodiment in which a beam of an LED is projected through a light pipe lens according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the light pipe lens according to the present invention will be described in detail with reference to the accompanying drawings.

First, the light pipe lens according to the present invention can be applied to, for example, a front panel of an archive system and the like, and further, various types of electronic apparatuses It can be widely applied to a display panel installed on the front, side, and rear surface.

5 and 6 show a perspective view of a light pipe lens according to the present invention. For example, in a front panel of an archive system, a beam emitted from each of eight LEDs is projected to the outside A light pipe lens (Light Pipe Lens) 30 in the form of a module may be installed.

The module type light pipe lens 30 is composed of a beam incident layer 31, a beam passing layer 32 and a beam projection layer 33, As shown in FIG. 5, longitudinal sawtooth shapes are arranged at regular intervals with respect to the major axis. The sawtooth shapes may also be formed in the lateral direction with respect to the major axis.

As shown in FIG. 6, both side surfaces of the beam passing layer 32 have an inclination angle formed with step shapes. On the surface of the beam projection layer 33, And sawtooth shapes in the longitudinal direction are arranged at regular intervals. In the surface of the beam projection layer 33, sawtooth shapes in the horizontal direction may be arranged at regular intervals with respect to the long axis.

7 shows a side view of the light pipe lens according to the present invention. A plurality of LEDs (light emitting diodes) may be provided as a light emitting element for emitting a diffusion beam under the surface of the beam incident layer 31 A diffusion beam emitted from the LED passes through the beam incident layer 31, the beam passing layer 32, and the beam projection layer 33, and is projected to the outside.

At this time, as shown in Fig. 8, the beam projected to the outside through the beam projection layer 33 is diffused and projected at various angles by the sawtooth shapes formed on the surface, and the sawtooth shape of the surface A part of the reflected beam reflected by the inner side of the beam passing layer 32 is re-reflected by being reflected by the stepped shapes of the inclined angle formed on both sides of the beam passing layer 32.

As described above, the central brightness and the peripheral brightness of the LED beam projected to the outside become substantially equal due to the repeated reflection between the beam projection layer 33 and the beam passing layer 32. Therefore, It is possible to effectively suppress the gradation phenomenon that the outer portion of the LED becomes gradually darker than the central portion as described above.

Since both side surfaces of the beam passing layer 32 have inclined angles at which stepped shapes are formed, as described above with reference to Fig. 3, when the both side surfaces of the beam passing layer are vertical, the beam leaks outward The beam leakage phenomenon can be prevented, and the light efficiency of the LED can be efficiently improved.

9, in the front panel 10 provided on the front surface of the archive system 100, the light emission state of an LED (light emitting diode) whose brightness at the center portion is substantially the same as that of the peripheral portion, The user can precisely check the light emitting state of the LED since the light emitting state in which the phenomenon of gradation is suppressed is obtained.

10 shows an embodiment in which a beam of an LED is projected through a light pipe lens according to another embodiment of the present invention. The light pipe lens 40 according to another embodiment of the present invention has the above- Similarly, a module for projecting a beam emitted from a plurality of LEDs to the outside can be manufactured.

The module type light pipe lens 40 constitutes a beam incident layer 41 and a beam passing layer 42 and a beam projection layer 43. Both side faces of the beam passing layer 32 are made of, As shown in Fig. 10, has an inclination angle (Slope) in which stepped shapes are formed.

In the surface of the beam projection layer 43, sawtooth shapes in the longitudinal direction are arranged at regular intervals with respect to the long axis. On the surface of the beam projection layer 43, The shapes may be arranged at regular intervals.

On the other hand, as shown in FIG. 10, the surface of the beam incident layer 41 may be formed in a plate shape in which sawtooth shapes are removed. In this case, a beam emitted from the LED It is possible to improve the light efficiency of the LED because the LEDs are all incident on the planar surface without any additional reflection.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. , Alteration, substitution, addition, or the like.

100: archive system 10: front panel
20, 30, 40: Light pipe lens 21, 31, 41:
22, 32, 42: beam passing layer 23, 33, 43:

Claims

A light pipe lens for incidence and passing a beam emitted from a light emitting element and projecting the beam to the outside,
The light pipe lens includes a beam incident layer, a beam passing layer, and a beam projection layer,
Wherein saw-toothed shapes are formed on the surface of the beam projection layer,
Wherein both side surfaces of the beam passing layer have an inclination angle at which stepped shapes are formed.

The method according to claim 1,
Wherein the beam incident layer has a longitudinal or transverse saw-tooth shape formed on a surface thereof with respect to a long axis.

The method according to claim 1,
Wherein the surface of the beam incident layer is planar.

The method according to claim 1,
Wherein the beam projection layer is formed with saw-toothed shapes in the longitudinal direction or the transverse direction with respect to the major axis.

The method according to claim 1,
Wherein the light pipe lens is fabricated as one module in which diffusion beams emitted from a plurality of light emitting devices are individually incident and transmitted and projected to the outside.

The method according to claim 1,
And a beam projected to the outside through the beam projection layer is dispersed by sawtooth shapes formed on the surface of the beam projection layer.

The method according to claim 1,
Wherein the beam reflected internally by the sawtooth shapes formed on the surface of the beam projection layer is re-reflected by the step shapes formed on both side surfaces of the beam passage layer.