JPH04231808A - Angle-of-inclination detector - Google Patents
Angle-of-inclination detectorInfo
- Publication number
- JPH04231808A JPH04231808A JP2408580A JP40858090A JPH04231808A JP H04231808 A JPH04231808 A JP H04231808A JP 2408580 A JP2408580 A JP 2408580A JP 40858090 A JP40858090 A JP 40858090A JP H04231808 A JPH04231808 A JP H04231808A
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting element
- resin
- detected
- tilt angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920005989 resin Polymers 0.000 claims abstract description 46
- 239000011347 resin Substances 0.000 claims abstract description 46
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 abstract description 13
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000004382 potting Methods 0.000 abstract description 5
- 239000004840 adhesive resin Substances 0.000 abstract description 3
- 229920006223 adhesive resin Polymers 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052710 silicon Inorganic materials 0.000 abstract description 2
- 239000010703 silicon Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 229920002050 silicone resin Polymers 0.000 description 5
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Light Receiving Elements (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、被検出物からの反射光
の偏りによつて被検出物の傾きを検出する傾き角検出器
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt angle detector that detects the tilt of an object by using the polarization of reflected light from the object.
【０００２】0002
【従来の技術】従来の傾き角検出器の構造を図８に示す
。2. Description of the Related Art The structure of a conventional tilt angle detector is shown in FIG.
【０００３】図中、１は基台、２は発光素子、３ａ，３
ｂは受光素子、４はシリコン樹脂、５はボンデイングワ
イヤ、６はレンズ付ホルダー、７はリードフレーム、８
は遮光板である。In the figure, 1 is a base, 2 is a light emitting element, 3a, 3
b is a light receiving element, 4 is a silicone resin, 5 is a bonding wire, 6 is a holder with a lens, 7 is a lead frame, 8
is a light shielding plate.
【０００４】上記傾き角検出器は、リードフレームをイ
ンサート成形した基台に受発光素子をダイボンドおよび
ワイヤボンドし、シリコン樹脂をポツテイングしてボン
デイングワイヤおよび受発光素子を保護する。そして、
図９，１０の如く、受発光素子を搭載した基台とレンズ
付ホルダーをフツク止め、又は樹脂接着により固定する
構造となつている。[0004] In the above-mentioned tilt angle detector, a light emitting and receiving element is die-bonded and wire bonded to a base having a lead frame insert-molded, and a silicone resin is potted to protect the bonding wire and the light emitting and receiving element. and,
As shown in FIGS. 9 and 10, the structure is such that the base on which the light receiving and emitting elements are mounted and the holder with a lens are fixed by hooks or resin adhesive.
【０００５】なお、図９，１０中、８はフツク、９は接
着用樹脂である。In FIGS. 9 and 10, 8 is a hook, and 9 is an adhesive resin.
【０００６】[0006]
【発明が解決しようとする課題】従来の傾き角検出器に
おいて、受発光素子を搭載した基台とレンズ付ホルダー
を固定する方法は、フツク止め又は樹脂接着による固定
であり、図９−Ａ，Ｂ、図１０−Ｂの如く、フツク嵌合
させるためのがたつきや、樹脂固定による樹脂量のむら
により受発光素子とレンズ付ホルダーの位置関係が精度
よく配置できない。また、アセンブリ後にがたつきが生
じる。[Problems to be Solved by the Invention] In the conventional tilt angle detector, the method of fixing the base on which the light receiving/emitting element is mounted and the holder with lens is by fixing with hooks or resin adhesive. B. As shown in FIG. 10-B, the positional relationship between the light receiving/emitting element and the holder with lens cannot be accurately arranged due to looseness due to hook fitting and unevenness in the amount of resin due to resin fixation. Also, rattling occurs after assembly.
【０００７】このため、検出器自体の出力変化が著しく
なるばかりか、アセンブリ工程、シリコン樹脂ポツテイ
ング工程が必要となり、コストが高くつく。[0007] For this reason, not only does the output change of the detector itself become significant, but also an assembly process and a silicone resin potting process are required, which increases the cost.
【０００８】本発明は、上記に鑑み、検出器自体の出力
変化が少なく、かつ安価な傾き角検出器の提供を目的と
する。SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an inexpensive tilt angle detector with little change in the output of the detector itself.
【０００９】[0009]
【課題を解決するための手段】本発明の課題解決手段は
、図１の如く、発光素子２と、複数に分割された受光素
子３ａ，３ｂとを備え、発光素子２から発せられた光が
被検出物体へ照射され、被検出物体から反射された光が
複数に分割された受光素子３ａ，３ｂ面上にどの様な領
域をもつて受光されるかにより被検出物体の傾き角を検
出する傾き角検出器において、前記発光素子２および受
光素子３ａ，３ｂを光学的に結合するよう透光性樹脂に
より一次モールドして、発光素子２からの光を集光して
被検出物体へ照射し、被検出物体の反射光を受光素子３
ａ，３ｂに集光させるレンズ部２０ａを有する透光樹脂
体２０が形成され、透光樹脂体２０をそのレンズ部２０
ａを除いて遮光性樹脂により二次モールドして遮光樹脂
体２１が形成され、前記透光樹脂体２０は、その内部の
発光素子２と受光素子３ａ，３ｂとの間に凹部２０ｂを
備え、前記遮光樹脂体２１は、透光樹脂体２０の凹部２
０ｂに嵌合する遮光板８を備えたものである。[Means for Solving the Problems] As shown in FIG. 1, the means for solving the problems of the present invention includes a light emitting element 2 and light receiving elements 3a and 3b divided into a plurality of parts, and the light emitted from the light emitting element 2 is The inclination angle of the object to be detected is detected based on the area in which the light irradiated onto the object to be detected and reflected from the object is received on the divided surfaces of the light receiving elements 3a and 3b. In the tilt angle detector, the light emitting element 2 and the light receiving elements 3a and 3b are primarily molded with a translucent resin so as to be optically coupled, and the light from the light emitting element 2 is focused and irradiated onto the object to be detected. , the light receiving element 3 receives the reflected light from the object to be detected.
A translucent resin body 20 having a lens portion 20a that focuses light on a and 3b is formed, and the translucent resin body 20 is
A light-shielding resin body 21 is formed by secondary molding with a light-shielding resin except for a, and the light-transmitting resin body 20 has a recess 20b between the light emitting element 2 and the light receiving elements 3a and 3b therein, The light-shielding resin body 21 is located in the recess 2 of the light-transmitting resin body 20.
It is equipped with a light-shielding plate 8 that fits into the light-shielding plate 8.
【００１０】0010
【作用】上記課題解決手段において、発光素子２、受光
素子３ａ，３ｂを光学的に結合するよう透光性樹脂によ
り一次モールドし、これをレンズ部２０ａを除いて遮光
性熱可塑性樹脂に二次モールドして遮光部を成形する構
造とすることで、従来のようにフツク嵌合等のがたつき
がなくなり、光学系部品の位置関係が精度よく配置でき
る。[Operation] In the above problem solving means, the light-emitting element 2 and the light-receiving elements 3a and 3b are first molded with a light-transmitting resin so as to be optically coupled, and then molded with a light-shielding thermoplastic resin except for the lens part 20a. By using a structure in which the light shielding part is formed by molding, there is no looseness caused by hook fitting as in the conventional case, and the positional relationship of the optical system components can be arranged with high accuracy.
【００１１】また、受発光素子を搭載した基台とレンズ
付ホルダーのアセンブリ工程およびシリコンポツテイン
グ工程を削除することができ、コスト低減ができる。[0011] Furthermore, the assembly process of the base on which the light receiving and emitting elements are mounted and the holder with lens and the silicon potting process can be omitted, resulting in cost reduction.
【００１２】0012
【実施例】以下、本発明の一実施例に係る傾き角検出器
の構造を図１に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a tilt angle detector according to an embodiment of the present invention will be described below with reference to FIG.
【００１３】図１−Ａは一次モールド完了時の平面図、
図１−Ｂは図１−ＡのＡ−Ａ断面図、図１−Ｃは二次モ
ールド完了時の平面図、図１−Ｄは図１−ＣのＢ−Ｂ断
面図である。なお、従来技術と同一機能部品については
同一符号を付している。FIG. 1-A is a plan view when the primary molding is completed;
1-B is a sectional view taken along line AA in FIG. 1-A, FIG. 1-C is a plan view when secondary molding is completed, and FIG. 1-D is a sectional view taken along line BB in FIG. 1-C. Note that the same reference numerals are given to the same functional parts as in the prior art.
【００１４】本実施例の傾き角検出器は、発光素子２と
、二個に分割された受光素子３ａ，３ｂとを備え、発光
素子２から発せられた光が被検出物体へ照射され、被検
出物体から反射された光が複数に分割された受光素子３
ａ，３ｂ面上にどの様な領域をもつて受光されるかによ
り被検出物体の傾き角を検出する。The tilt angle detector of this embodiment includes a light emitting element 2 and two divided light receiving elements 3a and 3b, and the light emitted from the light emitting element 2 is irradiated onto an object to be detected. A light receiving element 3 in which the light reflected from the detection object is divided into a plurality of parts.
The inclination angle of the object to be detected is detected based on what area on the a and 3b planes the light is received.
【００１５】前記発光素子２には発光ダイオードが、受
光素子３ａ，３ｂにはフオトダイオードが使用されてお
り、これらは、図１−Ａの如く、外部入出力部と接続す
るため、導電体（リードフレーム）７に搭載されている
。そして、図１ーＢの如く、光学的に結合するよう、透
光性樹脂により一次モールドされている。A light emitting diode is used as the light emitting element 2, and a photodiode is used as the light receiving elements 3a and 3b.These are connected to an external input/output section as shown in FIG. lead frame) 7. Then, as shown in FIG. 1B, they are primarily molded with a translucent resin so as to be optically coupled.
【００１６】発光素子２および受光素子３ａ，３ｂを一
次モールドして成る透光樹脂体２０は、図１−Ｂの如く
、その上部に、発光素子２からの光を集光して被検出物
体へ照射し、被検出物体の反射光を受光素子３ａ，３ｂ
に効率良く集光させるレンズ部２０ａを有する略釣鐘形
とされている。そして、透光樹脂体２０の底部の発光素
子２と受光素子３ａ，３ｂとの間には、凹部２０ｂが形
成されている。As shown in FIG. 1-B, the light-transmitting resin body 20 formed by primary molding the light-emitting element 2 and the light-receiving elements 3a and 3b focuses the light from the light-emitting element 2 onto the object to be detected. The reflected light from the object to be detected is transmitted to the light receiving elements 3a and 3b.
It is approximately bell-shaped and has a lens portion 20a that efficiently condenses light. A recess 20b is formed at the bottom of the transparent resin body 20 between the light emitting element 2 and the light receiving elements 3a, 3b.
【００１７】さらに、透光樹脂体２０は図１−Ｃ，Ｄの
如く、レンズ部２０ａを除いて遮光性樹脂により二次モ
ールドされている。この遮光樹脂体２１は、有底円筒形
とされており、遮光性樹脂が透光樹脂体２０の凹部２０
ｂに流れ込むことにより、受光素子３ａ，３ｂが発光素
子２の照射光を直接受光するのを防止する遮光板８が形
成されている。Further, as shown in FIGS. 1-C and 1-D, the light-transmitting resin body 20 is secondarily molded with a light-shielding resin except for the lens portion 20a. The light-shielding resin body 21 has a cylindrical shape with a bottom, and the light-shielding resin fills the recess 20 of the light-transmitting resin body 20.
A light shielding plate 8 is formed which prevents the light receiving elements 3a and 3b from directly receiving the irradiated light from the light emitting element 2 by flowing into the area b.
【００１８】次に、傾き角検出器の傾き角検出方法を図
２ないし図７に基づいて説明する。Next, a method of detecting the tilt angle of the tilt angle detector will be explained based on FIGS. 2 to 7.
【００１９】図２に示すように、発光素子２から発せら
れた光が被検出物体Ｘへ照射され、被検出物体Ｘにより
反射された光が受光素子３ａ，３ｂに斜線部（図３参照
）で示す様な領域をもつて集光される。As shown in FIG. 2, light emitted from the light emitting element 2 is irradiated onto the object to be detected The light is focused in the area shown in .
【００２０】このとき、被検出物体ＸがＡの受発光素子
面と平行な状態、つまり第一受光素子３ａと第二受光素
子３ｂに均等に光が集光されている状態から、被検出物
体Ｘが（＋）側（時計回り方向）へ回転してＢの状態に
なると、集光された光の領域は第一受光素子３ａへ偏る
。一方（−）側（反時計回り方向）に回転してＣの状態
になると、集光された光の領域は第二受光素子３ｂへ偏
る。At this time, from a state in which the detected object When X rotates toward the (+) side (clockwise) and enters state B, the area of the focused light is biased toward the first light receiving element 3a. When it rotates to one (-) side (counterclockwise direction) and enters state C, the area of the focused light is biased towards the second light receiving element 3b.
【００２１】Ａ〜Ｂ〜Ｃの状態の連続的な変化を図４の
測定回路で測定演算し、グラフ化したのが図５である。FIG. 5 is a graph showing the continuous changes in the states A to B to C, measured and calculated using the measuring circuit shown in FIG.
【００２２】このように、傾き角検出器により、図５の
ＩＰＤ１−ＩＰＤ２のグラフの様に傾き角θに対してリ
ニアな単調増加を示し、傾き角に対する理想的な出力を
得ることが可能である。In this way, the tilt angle detector shows a monotonous linear increase with respect to the tilt angle θ, as shown in the graph of IPD1-IPD2 in FIG. 5, and it is possible to obtain an ideal output with respect to the tilt angle. be.
【００２３】ところが、従来のように樹脂固定時に受発
光素子を搭載した基台とレンズ付ホルダーが樹脂量のば
らつき等で精度よく固定ができなかつたり、フツク止め
によるアセンブリ後がたつきが生じたりすると、図６に
示すように、被検出物体ＸがＡの受発光面と平行な状態
であつても、第一受光素子３ａと第二受光素子３ｂに均
等に光が集光されず、図７のように、傾き角に対して理
想的な出力（図５参照）が得られなくなる。However, when fixing with resin as in the past, the base on which the light receiving/emitting element is mounted and the holder with lens cannot be fixed accurately due to variations in the amount of resin, and wobbling occurs after assembly due to hook fixation. Then, as shown in FIG. 6, even if the detected object 7, it becomes impossible to obtain an ideal output (see FIG. 5) for the tilt angle.
【００２４】そこで、本実施例では、まず図１−Ａのよ
うに、リードフレーム７に発光素子２と受光素子３ａ，
３ｂをダイボンドし、ボンデイングワイヤ（金線）５で
ワイヤボンデイングする。次に、これらを透光性を有す
る熱硬化性樹脂によつて、図１−Ａ，Ｂのように一次モ
ールドしてレンズ部２０ａ付の透光樹脂体２０とする。
このとき、透光樹脂体２０内の発光素子２と受光素子３
ａ，３ｂとの間に、凹部２０ｂを形成する。そして、図
１−Ｃ，Ｄのように、外乱光等による誤動作を防ぐため
、透光樹脂体２０をそのレンズ部２０ａを除いて遮光性
を有する熱可塑性樹脂によつて遮光樹脂体２１を成形に
する。Therefore, in this embodiment, first, as shown in FIG. 1-A, the light emitting element 2, the light receiving element 3a, and
3b is die-bonded and wire-bonded using a bonding wire (gold wire) 5. Next, these are primary molded using a thermosetting resin having translucency as shown in FIGS. 1A and 1B to form a translucent resin body 20 with a lens portion 20a. At this time, the light emitting element 2 and the light receiving element 3 in the transparent resin body 20
A recess 20b is formed between a and 3b. Then, as shown in FIGS. 1-C and D, in order to prevent malfunctions due to external light, etc., a light-shielding resin body 21 is molded from a thermoplastic resin having light-shielding properties, except for the lens portion 20a of the light-transmitting resin body 20. Make it.
【００２５】このとき、透光樹脂体２０に設けられた凹
部２０ｂにも遮光性を有する熱可塑性樹脂が流れ込み、
発光素子３から受光素子３ａ，３ｂに直接光が入るのを
防止する遮光板８となる。At this time, the thermoplastic resin having a light-shielding property also flows into the recess 20b provided in the transparent resin body 20.
This serves as a light shielding plate 8 that prevents light from directly entering the light receiving elements 3a and 3b from the light emitting element 3.
【００２６】このように、発光素子２と受光素子３ａ，
３ｂを光学的に結合するよう透光性樹脂で一次モールド
し、これらを遮光性樹脂によつてレンズ部２０ａを除い
て二次モールドして遮光する構造によつて、従来のよう
に発光素子と受光素子を搭載した基台とレンズ付ホルダ
ーを固定する必要もなくなり、光学系部品（受発光素子
とレンズ部）の位置精度が安定する。また、アセンブリ
工程、シリコン樹脂ポツテイング工程を削除することが
できるので、コストダウンが可能になる。In this way, the light emitting element 2 and the light receiving element 3a,
3b are first molded with a light-transmitting resin so as to optically couple them, and then they are secondarily molded with a light-shielding resin except for the lens part 20a to block light, which makes it possible to combine them with light-emitting elements as in the past. There is no need to fix the base on which the light receiving element is mounted and the lens holder, and the positional accuracy of the optical system components (receiving and emitting element and lens part) is stabilized. Furthermore, since the assembly process and silicone resin potting process can be omitted, costs can be reduced.
【００２７】なお、本発明は、上記実施例に限定される
ものではなく、本発明の範囲内で上記実施例に多くの修
正および変更を加え得ることは勿論である。It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.
【００２８】[0028]
【発明の効果】以上の説明から明らかな通り、本発明に
よると、発光素子と受光素子を光学的に結合するよう、
透光性樹脂にて一次モールドし、これらを遮光性樹脂に
てレンズ部を除いて二次モールドする構造としているの
で、従来のように発光素子と受光素子を搭載した基台と
レンズ付ホルダーを固定する必要もなく、それによるが
たつきや接着用樹脂の樹脂量ばらつきによる光学系部品
の位置精度ばらつきをなくすことができる。また、アセ
ンブリ工程、シリコン樹脂ポツテイング工程を削除でき
る。[Effects of the Invention] As is clear from the above explanation, according to the present invention, in order to optically couple a light emitting element and a light receiving element,
The structure is firstly molded with translucent resin, and then secondarily molded with light-shielding resin, excluding the lens part, so that the base with the light emitting element and light receiving element mounted and the holder with the lens can be used as in the conventional method. There is no need to fix the optical system components, and it is possible to eliminate fluctuations in the positional accuracy of optical system components due to rattling caused by this and variations in the amount of adhesive resin. Additionally, the assembly process and silicone resin potting process can be eliminated.
【００２９】このため、出力変化が少なく安価な傾き角
検出器を提供することが可能となるといつた優れた効果
がある。Therefore, it is possible to provide an inexpensive tilt angle detector with little change in output, which is an excellent effect.
【図１】図１は本発明の一実施例に係る傾き角検出器の
構造を示しており、図１−Ａは一次モールド完了時の平
面図、図１−Ｂは図１−ＡのＡ−Ａ断面図、図１−Ｃは
二次モールド完了時の平面図、図１−Ｄは図１−ＣのＢ
−Ｂ断面図である。FIG. 1 shows the structure of a tilt angle detector according to an embodiment of the present invention, FIG. 1-A is a plan view when primary molding is completed, and FIG. 1-B is an A of FIG. 1-A. -A sectional view, Figure 1-C is a plan view when secondary molding is completed, Figure 1-D is B of Figure 1-C
-B sectional view.
【図２】図２は被検出物体の傾き角を検出する状態を示
す側面図である。FIG. 2 is a side view showing a state in which the inclination angle of an object to be detected is detected.
【図３】図３は被検出物体の傾きに対応した受光素子の
集光状態を示す図である。FIG. 3 is a diagram showing a light focusing state of a light receiving element corresponding to the inclination of an object to be detected.
【図４】図４は傾き角測定回路を示す図である。FIG. 4 is a diagram showing a tilt angle measurement circuit.
【図５】図５は傾き角に対する理想的な出力を示す図で
ある。FIG. 5 is a diagram showing ideal output versus tilt angle.
【図６】図６は従来の傾き角検出器において精度よく基
台とレンズ付きホルダーが固定できなかつたり、アセン
ブリ後のがたつきが生じた場合の被検出物体が受光面と
平行な状態の受光素子の集光状態を示す図である。[Fig. 6] Fig. 6 shows the state in which the detected object is parallel to the light-receiving surface when the base and lens holder cannot be fixed accurately or there is wobbling after assembly in a conventional tilt angle detector. FIG. 3 is a diagram showing a light-condensing state of a light-receiving element.
【図７】図７は図６に対応した出力を示す図である。FIG. 7 is a diagram showing output corresponding to FIG. 6;
【図８】図８は従来の傾き角検出器の構造を示しており
、図８−Ａは平面図、図８−Ｂは図８−ＡのＣ−Ｃ断面
図である。8 shows the structure of a conventional tilt angle detector, FIG. 8-A is a plan view, and FIG. 8-B is a cross-sectional view taken along line CC in FIG. 8-A.
【図９】図９はフツク止めにより基台とレンズ付きホル
ダーを固定した状態を示しており、図９−Ａはの側面図
、図９−Ｂは図９−ＡのＤ部拡大図である。FIG. 9 shows a state in which the base and the lens holder are fixed by hooks, FIG. 9-A is a side view, and FIG. 9-B is an enlarged view of part D in FIG. 9-A. .
【図１０】図１０は樹脂接着により基台とレンズ付ホル
ダーを固定した状態を示しており、図１０−Ａは側面図
、図１０−Ｂは図１０−ＡのＥ部拡大図である。FIG. 10 shows a state in which the base and the lens holder are fixed by resin bonding, FIG. 10-A is a side view, and FIG. 10-B is an enlarged view of section E in FIG. 10-A.
２ 発光素子 ３ａ，３ｂ 受光素子 ８ 遮光板 ２０ 透光樹脂体 ２０ａ レンズ部 ２０ｂ 凹部 ２１ 遮光樹脂体 2. Light emitting element 3a, 3b Photo receiving element 8. Light shielding plate 20 Translucent resin body 20a Lens part 20b Recessed part 21 Light-shielding resin body
Claims (1)
子とを備え、発光素子から発せられた光が被検出物体へ
照射され、被検出物体から反射された光が複数に分割さ
れた受光素子面上にどの様な領域をもつて受光されるか
により被検出物体の傾き角を検出する傾き角検出器にお
いて、前記発光素子および受光素子を光学的に結合する
よう透光性樹脂により一次モールドして、発光素子から
の光を集光して被検出物体へ照射し、被検出物体の反射
光を受光素子に集光させるレンズ部を有する透光樹脂体
が形成され、透光樹脂体をそのレンズ部を除いて遮光性
樹脂により二次モールドして遮光樹脂体が形成され、前
記透光樹脂体は、その内部の発光素子と受光素子との間
に凹部を備え、前記遮光樹脂体は、透光樹脂体の凹部に
嵌合する遮光板を備えたことを特徴とする傾き角検出器
。1. A light-receiving device comprising a light-emitting element and a light-receiving element divided into a plurality of parts, in which light emitted from the light-emitting element is irradiated onto an object to be detected, and light reflected from the object to be detected is divided into a plurality of parts. In a tilt angle detector that detects the tilt angle of an object to be detected based on what area on the element surface the light is received, a primary light-transmitting resin is used to optically couple the light-emitting element and the light-receiving element. By molding, a light-transmitting resin body is formed which has a lens portion that focuses light from the light-emitting element and irradiates it onto the object to be detected, and focuses reflected light from the object to be detected on the light-receiving element. A light-shielding resin body is formed by secondary molding with a light-shielding resin except for the lens portion, and the light-transmitting resin body has a recessed portion between the light-emitting element and the light-receiving element therein, and the light-shielding resin body A tilt angle detector comprising a light shielding plate that fits into a recess of a transparent resin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2408580A JPH04231808A (en) | 1990-12-28 | 1990-12-28 | Angle-of-inclination detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2408580A JPH04231808A (en) | 1990-12-28 | 1990-12-28 | Angle-of-inclination detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04231808A true JPH04231808A (en) | 1992-08-20 |
Family
ID=18518017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2408580A Pending JPH04231808A (en) | 1990-12-28 | 1990-12-28 | Angle-of-inclination detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04231808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007505297A (en) * | 2003-09-12 | 2007-03-08 | オー−プン・アンパルトセルスカブ | System and method for locating radiation scattering / reflecting elements |
| WO2009027459A2 (en) | 2007-08-29 | 2009-03-05 | Behr-Hella Thermocontrol Gmbh | Solar sensor for the detection of the direction of incidence and the intensity of solar radiation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5282371A (en) * | 1975-12-29 | 1977-07-09 | Omron Tateisi Electronics Co | Manufacture of reflective form photo micro sensor |
| JPS6269111A (en) * | 1985-09-24 | 1987-03-30 | Sony Corp | Reflection type inclination detecting element |
| JPH0252108B2 (en) * | 1984-07-07 | 1990-11-09 | Aisan Ind |
-
1990
- 1990-12-28 JP JP2408580A patent/JPH04231808A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5282371A (en) * | 1975-12-29 | 1977-07-09 | Omron Tateisi Electronics Co | Manufacture of reflective form photo micro sensor |
| JPH0252108B2 (en) * | 1984-07-07 | 1990-11-09 | Aisan Ind | |
| JPS6269111A (en) * | 1985-09-24 | 1987-03-30 | Sony Corp | Reflection type inclination detecting element |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007505297A (en) * | 2003-09-12 | 2007-03-08 | オー−プン・アンパルトセルスカブ | System and method for locating radiation scattering / reflecting elements |
| JP4859053B2 (en) * | 2003-09-12 | 2012-01-18 | フラットフロッグ・ラボラトリーズ・アクチボラゲット | System and method for locating radiation scattering / reflecting elements |
| WO2009027459A2 (en) | 2007-08-29 | 2009-03-05 | Behr-Hella Thermocontrol Gmbh | Solar sensor for the detection of the direction of incidence and the intensity of solar radiation |
| WO2009027459A3 (en) * | 2007-08-29 | 2009-05-28 | Behr Hella Thermocontrol Gmbh | Solar sensor for the detection of the direction of incidence and the intensity of solar radiation |
| US8785858B2 (en) | 2007-08-29 | 2014-07-22 | Behr-Hella Thermocontrol Gmbh | Solar sensor for the detection of the direction of incidence and the intensity of solar radiation |
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