JP7475021B2 - LED lens cover for lighting device - Google Patents
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- 238000000034 method Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 4
- 210000000078 claw Anatomy 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Description
この発明は、ＬＥＤを光源として用いた照明装置用のＬＥＤレンズカバーに関するものである。 This invention relates to an LED lens cover for a lighting device that uses an LED as a light source.
近年、消費電力が少ない、チラツキが少ない、耐久性があり、長寿命である等の理由から、光源としてＬＥＤ(＝発光ダイオード)等の点光源を用いた照明装置が出現している。しかしながら、ＬＥＤは一般的に、正面光軸方向の光度が最大であり、光軸方向に対する角度が大きくなるに従い、光度が減少する指向特性を有している。そのため均一な面状照明光を得ることが必要な掲示器等の照明装置の光源として、ＬＥＤを用いる場合には、ＬＥＤの光を拡散させ、面状の表示面を均一に照射させる構成が必要となる。 In recent years, lighting devices that use point light sources such as LEDs (light-emitting diodes) as the light source have appeared for reasons such as low power consumption, little flickering, durability, and long life. However, LEDs generally have directional characteristics in which the luminous intensity is greatest in the direction of the front optical axis, and the luminous intensity decreases as the angle relative to the optical axis increases. Therefore, when using LEDs as the light source for lighting devices such as noticeboards that require uniform planar illumination, a configuration is required that diffuses the LED light and uniformly illuminates the planar display surface.
なお、掲示器は、鉄道の駅構内や地下通路、或いは建物の外壁面等に、設置され、表面に文字や絵などが付された光透過性のパネルをその背面側から光を当てて、歩行者等へ周辺地理の案内や誘導のための情報や、宣伝広告等の各種情報を掲示するものである。 Displays are installed in railway stations, underground passages, or on the exterior walls of buildings, and use light to shine from the back of a light-transmitting panel with letters or pictures on its surface to display various types of information to pedestrians, such as information to guide or guide them around the area, or advertising materials.
ＬＥＤの光を拡散させ、面状の表示面を均一に照射させる構成としては、例えば、照明装置の筐体２の天井部内面に沿って複数のＬＥＤ４２を列状に配置し、各ＬＥＤ４２から下向きに放射された線状光源４の光を、光拡散レンズ５であるリニアフレネルレンズで集光し、集光した光束を減衰させることなく筐体２の正背両側に設置された透光表示板３、３に向けてそれぞれ配分し、両透光表示板３、３の表示面の全体を均一な光で照射する、特許文献１の構成が開示されている。 As a configuration for diffusing the light of the LEDs and uniformly illuminating a planar display surface, for example, Patent Document 1 discloses a configuration in which multiple LEDs 42 are arranged in a row along the inner surface of the ceiling of the housing 2 of the lighting device, and the light of the linear light source 4 emitted downward from each LED 42 is collected by a linear Fresnel lens, which is a light diffusing lens 5, and the collected light flux is distributed without attenuation toward the translucent display boards 3, 3 installed on both the front and back sides of the housing 2, respectively, and the entire display surface of both translucent display boards 3, 3 is illuminated with uniform light.
しかしながら、この特許文献１は、照明装置の筐体の天井部内面に沿って複数のＬＥＤを列状に配置し、各ＬＥＤの前方に、光の照射対象である両透光表示板が配置される構成を想定している。各ＬＥＤの側面や側面後方に両透光表示板が配置される、つまり各ＬＥＤの側面や側面後方に光の照射が要求される構成を想定していない。 However, this Patent Document 1 assumes a configuration in which multiple LEDs are arranged in a row along the inner surface of the ceiling of the lighting device housing, and two translucent display plates that are the targets of light irradiation are arranged in front of each LED. It does not assume a configuration in which two translucent display plates are arranged on the side or rear of each LED, in other words, a configuration in which light irradiation is required on the side or rear of each LED.
照明装置７の筐体７１の天井部内面に沿って配置された、各ＬＥＤ７２の側面や側面後方に両透光表示板７３が配置される構成の場合、図５に示すように、各ＬＥＤ７２の側面から光が漏れ、その部分だけ、明るい帯ができ、他の部分と照度に差が出てしまう。一方、各ＬＥＤ７２の側面から漏れる光を完全に遮断してしまうと、各ＬＥＤ７２の側面や側面後方に係る、透光表示板７３の表示面に光が照射されなくなってしまう。従って、各ＬＥＤ７２の側面や側面後方に対応する両透光表示板７３に適切に光が照射されるように、各ＬＥＤ７２の側面から漏れる光の量や漏れ方を調節する必要がある。 In a configuration in which both translucent display plates 73 are arranged on the side or rear side of each LED 72 arranged along the inner ceiling surface of the housing 71 of the lighting device 7, as shown in FIG. 5, light leaks from the side of each LED 72, creating a bright band in that area only, resulting in a difference in illuminance from other areas. On the other hand, if the light leaking from the side of each LED 72 is completely blocked, light will not be irradiated onto the display surface of the translucent display plate 73 related to the side or rear side of each LED 72. Therefore, it is necessary to adjust the amount and manner of light leaking from the side of each LED 72 so that light is appropriately irradiated onto both translucent display plates 73 corresponding to the side or rear side of each LED 72.
なお、照明装置７の筐体７１の天井部内面に沿って配置された、各ＬＥＤ７２の側面や側面後方に両透光表示板７３が配置される構成の場合、各ＬＥＤ７２には、図６及び図７に示す既製品の、プラスティック製のレンズ６が設けられている。このレンズ６は、略短円筒形状であって、ＬＥＤ７２から照射される光束を、正面光軸方向に集約させる役割を果たす。しかし、各ＬＥＤ７２にレンズ６を設けても、側面から漏れる光の量や漏れ方を調節することはできない。 When both translucent display plates 73 are arranged on the side or rear side of each LED 72 arranged along the inner surface of the ceiling of the housing 71 of the lighting device 7, each LED 72 is provided with a ready-made plastic lens 6 as shown in Figures 6 and 7. This lens 6 has a roughly short cylindrical shape and serves to concentrate the light beam emitted from the LED 72 in the front optical axis direction. However, even if each LED 72 is provided with a lens 6, it is not possible to adjust the amount or manner of light leaking from the side.
そのため、従来は、このレンズ６の外周に、作業者等のユーザがテープを巻いて（図示省略）、ＬＥＤの側面から漏れる光の量や漏れ方を調節していた。しかし、１つの照明装置７にＬＥＤ７２は、例えば３６個～６０個設けられており、これらのＬＥＤ７２の各レンズの外周にテープを巻くには、膨大な時間と手間が必要である。 For this reason, conventionally, workers or other users would wrap tape (not shown) around the outer periphery of this lens 6 to adjust the amount and manner of light leaking from the side of the LED. However, one lighting device 7 may be equipped with, for example, 36 to 60 LEDs 72, and wrapping tape around the outer periphery of the lens of each of these LEDs 72 requires a huge amount of time and effort.
そこで、この発明は、上述の課題を解決する、ＬＥＤの側面から漏れる光や漏れ方を調整することができ、また、ＬＥＤのレンズに簡単に被せることができ、作業が簡易な照明装置用のＬＥＤレンズカバーを提供することを目的としたものである。 The purpose of this invention is to provide an LED lens cover for lighting devices that solves the above-mentioned problems, can adjust the amount of light leaking from the sides of an LED and the manner in which it leaks, and can be easily placed over an LED lens, making the installation process simple.
請求項１の発明は、
対向二面に開口部が設けられた箱形筐体の両前記開口部に透光表示板を設置し、また、前記箱形筐体の天井部内面に沿って、線状光源として、複数のＬＥＤを列状に配置し、両前記透光表示板を前記線状光源で内側から照明し、各前記ＬＥＤには、当該ＬＥＤから照射される光束を、正面光軸方向に集約させる、略短円筒形状のレンズが設けられている照明装置用のＬＥＤレンズカバーであって、
前記レンズの左方向の外周面及び右方向の外周面には、前記レンズの外周方向に向かって盛り上がった肉厚段部が夫々設けられ、
前記照明装置用のＬＥＤレンズカバーは、各前記レンズの側部外周を覆うように設けられ、各前記ＬＥＤの側面から漏れる光の量や漏れ方を調節し、
前記照明装置用のＬＥＤレンズカバーは、シリコーン製で白色であり、
前記照明装置用のＬＥＤレンズカバーには、前方の下端及び後方の下端に、切り欠きが夫々設けられ、
前記切り欠きは、前記レンズの下前方及び下後方から外周方向に向かって伸びており、前記レンズを前記箱形筐体に係止させる爪部を収容し、
前記照明装置用のＬＥＤレンズカバーには、前方方向の内周面及び後方方向の内周面に、前記照明装置用のＬＥＤレンズカバーの中心方向に向かって盛り上がった肉厚段部が設けられている、照明装置用のＬＥＤレンズカバーとした。
The invention of claim 1 is as follows:
An LED lens cover for a lighting device, comprising: a box-shaped housing having openings on two opposing sides, a translucent display plate installed in each of the openings, and a plurality of LEDs arranged in a row as linear light sources along an inner surface of a ceiling part of the box- shaped housing, the translucent display plates illuminated from the inside by the linear light sources, and each of the LEDs is provided with a lens having a substantially short cylindrical shape that concentrates a light beam emitted from the LED in a front optical axis direction,
a thick stepped portion that rises toward the outer periphery of the lens is provided on each of the outer periphery surfaces of the lens in the left direction and the right direction,
The LED lens cover for the lighting device is provided to cover the outer periphery of the side of each of the lenses and adjusts the amount and manner of light leaking from the side of each of the LEDs;
The LED lens cover for the lighting device is made of silicone and is white in color;
The LED lens cover for the lighting device has a notch at a front lower end and a rear lower end,
the notches extend from the lower front and lower rear of the lens toward the outer periphery and accommodate claws that engage the lens with the box-shaped housing;
The LED lens cover for the lighting device has thick stepped portions on the inner circumferential surface in the forward direction and the inner circumferential surface in the rear direction, the thick stepped portions rising toward the center of the LED lens cover for the lighting device .
請求項２の発明は、
前記照明装置用のレンズカバーの表面に、凹凸を作るブラスト処理が施されている、請求項１に記載の照明装置用のＬＥＤレンズカバーとした。
The invention of claim 2 is as follows:
The LED lens cover for a lighting device according to claim 1 , wherein a blasting process is performed on the surface of the lens cover for a lighting device to create irregularities.
請求項１～３の発明によれば、ＬＥＤの側面から漏れる光や漏れ方を調整し、ＬＥＤの側面や側面後方に対応する両透光表示板に適切に光を照射することができる。また、作業者等のユーザは、簡易な作業で、ＬＥＤのレンズに簡単にカバーを被せることができるため、作業時間や作業の手間を省くことができ、便宜である。 According to the inventions of claims 1 to 3, the amount of light leaking from the side of the LED and the manner in which it leaks can be adjusted, and light can be appropriately irradiated onto both translucent display panels corresponding to the side and rear of the side of the LED. In addition, users such as workers can easily place a cover over the lens of the LED with simple work, which is convenient and saves work time and effort.
（実施の形態例１）
まず、この発明の実施の形態例１のＬＥＤレンズカバー１について、図１に基づいて説明する。図１（a）は、この発明の実施の形態例１の平面図であって、（b）は、正面図である。ＬＥＤレンズカバー１は、アクリル製の型に、シリコーンを流し込んで一体に成型されたシリコーン製で、リング（＝環）状である。なお、「シリコーン」は、「シリコン」とも呼ばれ、ケイ素と酸素からなるシロキサン結合（-Si-O-Si-）を骨格とし、そのケイ素（Si）にメチル基（-CH3）を主体とする有機基が結合したポリマーの総称であり、例えば、ポリアミド樹脂、熱可撓性アクリル樹脂、ポリカーボネート樹脂を含む概念である。
(Embodiment Example 1)
First, an LED lens cover 1 according to a first embodiment of the present invention will be described with reference to FIG. 1. FIG. 1(a) is a plan view of the first embodiment of the present invention, and FIG. 1(b) is a front view. The LED lens cover 1 is made of silicone and is molded integrally by pouring silicone into an acrylic mold, and has a ring shape. Note that "silicone" is also called "silicon" and is a general term for polymers that have a siloxane bond (-Si-O-Si-) made of silicon and oxygen as a skeleton, and an organic group mainly composed of a methyl group (-CH3) is bonded to the silicon (Si). For example, this concept includes polyamide resin, thermoplastic acrylic resin, and polycarbonate resin.
また、ＬＥＤレンズカバー１は、前方の下端及び後方の下端に、切り欠き１１が夫々設けられている。この切り欠き１１は、レンズ６の下前方及び下後方から外周方向に向かって伸びており、レンズ６を基板８（後述）に係止させる爪部６１（図６を参照）を収容し、レンズ６にＬＥＤレンズカバー１が嵌合するように設けられている。なお、ＬＥＤレンズカバー１の前方の下端の切り欠き１１は、図１（b）に示されている。一方、ＬＥＤレンズカバー１の後方の下端の切り欠き１１は、図１（b）に示されていないが、ＬＥＤレンズカバー１の正面と背面は同様であるため、図示を省略する。 The LED lens cover 1 also has notches 11 at its front and rear lower ends. These notches 11 extend from the lower front and rear of the lens 6 toward the outer periphery and accommodate claws 61 (see FIG. 6) that engage the lens 6 with the substrate 8 (described below), allowing the LED lens cover 1 to fit onto the lens 6. The notch 11 at the front lower end of the LED lens cover 1 is shown in FIG. 1(b). On the other hand, the notch 11 at the rear lower end of the LED lens cover 1 is not shown in FIG. 1(b), but since the front and back of the LED lens cover 1 are similar, it is not shown here.
また、図１（a）に示すように、ＬＥＤレンズカバー１の前方方向の内周面及び後方方向の内周面には、ＬＥＤレンズカバー１の中心方向に向かって盛り上がった肉厚段部１２が夫々設けられている。 In addition, as shown in FIG. 1(a), the inner circumferential surface of the LED lens cover 1 in the forward direction and the inner circumferential surface in the rear direction are each provided with a thick stepped portion 12 that rises toward the center of the LED lens cover 1.
図６に示すように、レンズ６の左方向の外周面及び右方向の外周面は、レンズ６の外周方向に向かって盛り上がった肉厚段部６２が夫々設けられているため、リング状のＬＥＤレンズカバー１をレンズ６の外周に嵌合させると、レンズ６の左方向の外周面及び右方向の外周面については、ＬＥＤレンズカバー１を隙間なく嵌合させることができるが、レンズ６の前方方向と後方方向については、肉厚段部６２があることで浮いてしまい、レンズ６の外周面にＬＥＤレンズカバー１を隙間なく嵌合させることはできない。 As shown in FIG. 6, the outer peripheral surface of the lens 6 on the left and right sides are each provided with a thick step portion 62 that rises toward the outer periphery of the lens 6. Therefore, when the ring-shaped LED lens cover 1 is fitted to the outer periphery of the lens 6, the LED lens cover 1 can be fitted without gaps to the outer peripheral surfaces of the lens 6 on the left and right sides. However, in the forward and backward directions of the lens 6, the thick step portion 62 causes the lens 6 to float, and the LED lens cover 1 cannot be fitted without gaps to the outer peripheral surface of the lens 6.
そこで、ＬＥＤレンズカバー１の前方方向の内周面及び後方方向の内周面に、肉厚段部１２を設けることで、レンズ６の前方方向及び後方方向の外周を支持させて持ち上げ、レンズ６の外周面にＬＥＤレンズカバー１を隙間なく嵌合させる。 Therefore, by providing thick step portions 12 on the inner circumferential surface of the LED lens cover 1 in the forward and rearward directions, the outer periphery of the lens 6 in the forward and rearward directions is supported and raised, and the LED lens cover 1 is fitted tightly to the outer periphery of the lens 6.
図２（a）は、ＬＥＤレンズカバー１をレンズ６に被せた状態を示す正面図であり、（b）は、ＬＥＤレンズカバー１をレンズ６に被せた状態を示す平面図である。また、図３（a）は、基板８上のレンズ６に、この発明の実施の形態例１に係るＬＥＤレンズカバーを被せた状態を示す正面図であり、（b）は、基板８上のレンズに、この発明の実施の形態例１に係るＬＥＤレンズカバーを被せた状態を示す平面図である。なお、照明装置７の筐体７１の天井部内面に沿って各ＬＥＤ７２を配置する場合には、電源や各ＬＥＤを制御する制御回路等が搭載された基板８上に、各ＬＥＤ７２を配置するが、当該事項は、一般的な事項であるため、説明を省略する。 2(a) is a front view showing the state where the LED lens cover 1 is placed on the lens 6, and (b) is a plan view showing the state where the LED lens cover 1 is placed on the lens 6. Also, FIG. 3(a) is a front view showing the state where the LED lens cover according to the first embodiment of the present invention is placed on the lens 6 on the substrate 8, and (b) is a plan view showing the state where the LED lens cover according to the first embodiment of the present invention is placed on the lens on the substrate 8. When the LEDs 72 are arranged along the inner surface of the ceiling part of the housing 71 of the lighting device 7, the LEDs 72 are arranged on the substrate 8 on which the power supply and the control circuit for controlling the LEDs are mounted, but this is a general matter and therefore will not be described.
図２及び図３で示されているように、ＬＥＤレンズカバー１の前方の下端及び後方の下端に夫々、切り欠き１１が設けられ、ＬＥＤレンズカバー１の前方方向の内周面及び後方方向の内周面に夫々、肉厚段部１２が設けられているため、ＬＥＤレンズカバー１をレンズ６の外周面に沿って隙間なく嵌合させることができる。 As shown in Figures 2 and 3, notches 11 are provided at the front and rear lower ends of the LED lens cover 1, and thick-walled steps 12 are provided on the front and rear inner circumferential surfaces of the LED lens cover 1, respectively, so that the LED lens cover 1 can be fitted snugly along the outer circumferential surface of the lens 6.
また、ＬＥＤレンズカバー１の色は、例えば、クリア（＝透明）や薄い白色や濃い白色等を使用可能であるが、濃い白色が好ましい。 The color of the LED lens cover 1 can be, for example, clear (=transparent), light white, dark white, etc., but dark white is preferred.
更に、ＬＥＤレンズカバー１の表面に凹凸を作るため、ブラスト処理を施す構成としても良い。ブラスト処理を施して、ＬＥＤレンズカバー１の表面に凹凸を形成することによって、ＬＥＤ７２の光が、その凹凸に乱反射して拡散し、各ＬＥＤ７２の側面や側面後方に対応する両透光表示板に適切に光が照射される。 Furthermore, a blasting process may be performed to create unevenness on the surface of the LED lens cover 1. By performing a blasting process to form unevenness on the surface of the LED lens cover 1, the light from the LEDs 72 is diffused by being diffused by the unevenness, and the light is appropriately irradiated onto the side and the two translucent display plates corresponding to the rear side of each LED 72.
次に、テープをレンズ６の外周に巻いた場合と、本実施の形態例１に係るＬＥＤレンズカバー１をレンズ６に被せた場合で比較する。図４は、レンズにテープを巻いた場合と、レンズに各種のＬＥＤレンズカバー１を被せた場合の照度を示したグラフ図である。図４の縦軸は、照度（lx）を示し、横軸は、照明装置７の筐体７１の天井部に設けられたＬＥＤ７２（＝光源）から、照明装置７の下方向の距離であり、図４では、縦の長さ（＝高さ）が５００（ｍｍ）の照明装置７を使用した例を示している。 Next, a comparison is made between a case where tape is wrapped around the outer circumference of the lens 6 and a case where the LED lens cover 1 according to the first embodiment is placed over the lens 6. FIG. 4 is a graph showing the illuminance when tape is wrapped around the lens and when various LED lens covers 1 are placed over the lens. The vertical axis of FIG. 4 shows the illuminance (lx), and the horizontal axis shows the distance downward from the LED 72 (= light source) provided on the ceiling of the housing 71 of the lighting device 7 to the lighting device 7. FIG. 4 shows an example in which a lighting device 7 with a vertical length (= height) of 500 (mm) is used.
図４を見ると、ＬＥＤレンズカバー１の色がクリア（透明）の場合には、ＬＥＤ７２付近の５０（mm）の地点の照度が高い。レンズ６にテープを巻いた場合には、ＬＥＤ７２から離れた４５０（mm）の地点の照度が高い。ＬＥＤレンズカバー１の色が薄い白色や濃い白色の場合、概ね、レンズ６にテープを巻いた場合と同様に、照度を抑えることができている。但し、ＬＥＤレンズカバー１の色が濃い白色の場合の方が、より照度を抑えることができている。なお、テープを巻いた場合、各種のＬＥＤレンズカバー１を被せた場合のいずれも、３５０（mm）離れた地点から、照度が上昇している。これは、ＬＥＤ７２の光が、照明装置７の筐体７１の底部で反射しているからである。 As can be seen from FIG. 4, when the LED lens cover 1 is clear (transparent), the illuminance is high at a point 50 mm away from the LED 72. When tape is wrapped around the lens 6, the illuminance is high at a point 450 mm away from the LED 72. When the LED lens cover 1 is light white or dark white, the illuminance can be suppressed roughly in the same way as when tape is wrapped around the lens 6. However, when the LED lens cover 1 is dark white, the illuminance can be suppressed even more. Note that when tape is wrapped around the lens 6 and when various LED lens covers 1 are used, the illuminance increases from a point 350 mm away. This is because the light from the LED 72 is reflected off the bottom of the housing 71 of the lighting device 7.
このように、レンズ６にＬＥＤレンズカバー１を被せることによって、レンズ６にテープを巻いた場合と同様に、ＬＥＤ７２の側面から漏れる光や漏れ方を調整し、ＬＥＤ７２の側面や側面後方に対応する両透光表示板７３に適切に光を照射することができる。また、作業者等のユーザは、簡易な作業で、ＬＥＤ７２のレンズ６に簡単にＬＥＤレンズカバー１を被せることができるため、作業時間や作業の手間を省くことができ、便宜である。 In this way, by covering the lens 6 with the LED lens cover 1, the amount of light leaking from the side of the LED 72 and the manner in which it leaks can be adjusted, just as in the case of wrapping tape around the lens 6, and light can be appropriately irradiated onto both translucent display plates 73 corresponding to the side and rear side of the LED 72. In addition, a worker or other user can easily cover the lens 6 of the LED 72 with the LED lens cover 1 with a simple procedure, which saves work time and effort, making it convenient.
以上、この発明の好ましい実施の形態例について述べたが、この発明に係る照明装置用の制御回路は上述した実施の形態例にのみ限定されるものではなく、この発明の範囲で種々の変更実施が可能であるのは言うまでもない。 The above describes a preferred embodiment of the present invention, but it goes without saying that the control circuit for a lighting device according to the present invention is not limited to the above-described embodiment, and various modifications are possible within the scope of the present invention.
１：ＬＥＤレンズカバー、１１：切り欠き、１２：肉厚段部、
６：レンズ、６１：爪部、６２：肉厚段部、
７：照明装置、７１：筐体、７２：ＬＥＤ、７３：透光表示板、
８：基板
1: LED lens cover, 11: cutout, 12: thick stepped portion,
6: lens, 61: claw portion, 62: thick step portion,
7: Illumination device, 71: Housing, 72: LED, 73: Light-transmitting display panel,
8: Substrate
Claims (2)
前記レンズの左方向の外周面及び右方向の外周面には、前記レンズの外周方向に向かって盛り上がった肉厚段部が夫々設けられ、
前記照明装置用のＬＥＤレンズカバーは、各前記レンズの側部外周を覆うように設けられ、各前記ＬＥＤの側面から漏れる光の量や漏れ方を調節し、
前記照明装置用のＬＥＤレンズカバーは、シリコーン製で白色であり、
前記照明装置用のＬＥＤレンズカバーには、前方の下端及び後方の下端に、切り欠きが夫々設けられ、
前記切り欠きは、前記レンズの下前方及び下後方から外周方向に向かって伸びており、前記レンズを前記箱形筐体に係止させる爪部を収容し、
前記照明装置用のＬＥＤレンズカバーには、前方方向の内周面及び後方方向の内周面に、前記照明装置用のＬＥＤレンズカバーの中心方向に向かって盛り上がった肉厚段部が設けられていることを特徴とする、照明装置用のＬＥＤレンズカバー。 An LED lens cover for a lighting device, comprising: a box-shaped housing having openings on two opposing sides, a translucent display plate installed in each of the openings, and a plurality of LEDs arranged in a row as linear light sources along an inner surface of a ceiling part of the box- shaped housing, the translucent display plates illuminated from the inside by the linear light sources, and each of the LEDs is provided with a lens having a substantially short cylindrical shape that concentrates a light beam emitted from the LED in a front optical axis direction,
a thick stepped portion that rises toward the outer periphery of the lens is provided on each of the outer periphery surfaces of the lens in the left direction and the right direction,
The LED lens cover for the lighting device is provided to cover the outer periphery of the side of each of the lenses and adjusts the amount and manner of light leaking from the side of each of the LEDs;
The LED lens cover for the lighting device is made of silicone and is white in color;
The LED lens cover for the lighting device has a cutout at a front lower end and a rear lower end,
the notches extend from the lower front and lower rear of the lens toward the outer periphery and accommodate claws that engage the lens with the box-shaped housing;
The LED lens cover for the lighting device is characterized in that the LED lens cover for the lighting device has a thick step portion on its inner surface in the forward direction and on its inner surface in the rear direction, the thick step portion protruding toward the center of the LED lens cover for the lighting device.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012017636A1 (en) | 2010-08-03 | 2012-02-09 | 株式会社エンプラス | Light-emitting device and illumination device |
| JP2014145790A (en) | 2013-01-25 | 2014-08-14 | Nitto Kogaku Kk | Optical member |
| JP2014229545A (en) | 2013-05-24 | 2014-12-08 | 株式会社新陽社 | Light source device, and lighting apparatus using the same |
| JP3205117U (en) | 2016-04-22 | 2016-07-07 | 株式会社パーマンコーポレーション | Marker lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012017636A1 (en) | 2010-08-03 | 2012-02-09 | 株式会社エンプラス | Light-emitting device and illumination device |
| JP2014145790A (en) | 2013-01-25 | 2014-08-14 | Nitto Kogaku Kk | Optical member |
| JP2014229545A (en) | 2013-05-24 | 2014-12-08 | 株式会社新陽社 | Light source device, and lighting apparatus using the same |
| JP3205117U (en) | 2016-04-22 | 2016-07-07 | 株式会社パーマンコーポレーション | Marker lamp |
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