3D Laser Ranging Image Sensor [Infini soleil] FX8


What’s Laser ranging image sensor「Infini soleil」

MEMSスキャナ「ECO SCAN」が可能にした外乱光の影響を受けない新しい3次元形状認識!MEMS scanner - ECO SCAN - Enables New 3D Shape Recognition Not Affected By Ambient Light


This sensor is usable at the noon and night owing to active method (using near infrared pulse laser).
The ambient lignt resistance is 200,000 lx and above, because MEMS-scanner “ECO SCAN” is included in optical system of laser emitting and receiving.
Laser safety standard of this sensor is class 1 because the laser is scanned fast. The stable value of range and light volume is output by coordinate.



InfiniSoleil FX8
方式 光パルス飛行時間計測法
検出距離範囲 0m~15m
画角 水平 60°
垂直 50°
応答速度※1 20f/s 16f/s 10f/s 4f/s
測距点数 約43×25 約53×33 約65×40 約100×60
角度分解能 25×36mrad 20×27mrad 16×23mrad 11×15mrad
距離分解能 Min.4mm
距離精度(繰り返し精度) ±20~±100mm @±3σ 反射率12%以上・距離0.3~5m(Ta:25℃)
耐外乱光※2 200,000lx以上(動作保証)
レーザ安全性 Class1(IEC60825-1:2001)
外形寸法/質量 W62×H66×D89mm/約0.6kg
動作温度 -10℃~+50℃ 屋外対応
電源電圧 DC+12V~+24V
消費電流 定常時0.5A以下 起動時1.5A以下
外部I/F Ethernet(TCP/IP)
付属品 電源ケーブル、通信ケーブル、表示ソフト、コマンドライブラリー一式
InfiniSoleil FX8
Method Time-of-flight
Detecting range 0m~15m
Laser scanning area Horisontally 60°
Vertically 50°
Frame rate *1 20f/s 16f/s 10f/s 4f/s
Resolution About 43×25 About 53×33 About 65×40 About 100×60
Angular resolution 25x36mrad 20x27mrad 16x23mrad 11x15mrad
Ranging resolution Min.4mm
Ranging accuracy (Repeatabillity) ±20~±100mm @±3σ with a reflection rate 12% or more, for diffusion objectsm at a distance of 5m(Ta:25℃)
Ambient light resistance *2 200,000lx or more (performance guarantee)
Laser safety standard Class1(IEC60825-1:2001)
Dimensions / Weight W62×H66×D89mm / About 0.6kg
Operating temperature -10℃~+50℃ Can be operated out door
Supply voltage DC+12V~+24V
Current consumption AV:0.5A / MAX:1.5A / @+12V
External interface Ethernet(TCP/IP)
Accessories Power cable, communication cable, viewing software, set of command library
* Power supply (AC/DC) is optional.

アンフィニソレイユカタログInfini Soleil catalog (Japanese Only)

※1 応答速度は4タイプの内、2タイプまで選択可能(ユーザ切替可)

※2 真夏の太陽を直視すると、およそ130,000lxとなります(当社調べ)

※3 セキュリティ用途へは使用できません。

*1 Two types of frame rate are selectable from among four types.

*2 Direct solar light is 130,000lx in summer season.The Specification might be changed because of under developing.


3D距離画像センサは投射したレーザがターゲットまで往復してくる時間から距離を計測(Time Of Flight)します。光は1ナノ秒(10億分の1秒)に30cm進みますので、センサとターゲットの間の距離が15cm(往復30cm)変化したときに、送受の時間差が1ナノ秒変化します。本センサでは、約30ピコ秒(1兆分の30秒)の最小単位で時間差を計測しています。(図1)


The theor of measurement.

This sensor measures the distance between the sensor and the target by checking the time for the emitted   laser light to travel to and from the target (time of flight).

The light travels 30 cm in one nanosecond (one billionth of a second), so if the distance between the sensor and target changes by 15 cm (30 cm for a round trip), the difference of traveling time of light emitting and receiving changes by one nanosecond.

This sensor measures the time difference at the smallest unit of about 30 picoseconds (one trillionth of 30 seconds).(Fig. 1)

The theor of measurement.


2次元走査ミラー「ECO SCAN」は、このレーザ光を上下、左右にリサージュ走査し、各走査角における距離を計測していきます。「ECO SCAN」は共振駆動することにより、少ない電力で大きな走査角を得ることができます。 水平方向と垂直方向では共振周波数が異なりますので、組み合わせると図2のような軌跡を描きます。左下を走査の原点としたときのt秒後に到達する座標を計算で求めることができます。 レーザ走査

そして、XとYの走査周期の組み合わせから決まる周期後に、ふたたび原点に戻ってきます。あらかじめレーザを投射すべき座標と時刻を求めたテーブルを用意し、最適な時刻にレーザ投射・計測することで、各座標(走査角度)の距離を計測、距離画像を取得しています。 レーザ走査

Laser scanning

The 2D scanning mirror (EcoScan) scans the laser beam by the way of Lissajous scanning up and down and right to left, and measures the distance at each scanning angle. EcoScan can obtain a large scanning angle with small amount of electric power utilizing resonance driving. In the case of this sensor, both horizontal and vertical scanning is made in the range near to the resonance frequency. The resonance frequency of vertical direction differs from that of horizontal direction, so if the both are combined, the frequency locus will be as shown by Fig.2. When the lower left is the origin of scanning, the coordinate to which the light reaches after t seconds can be calculated as follows. Laser scanning

And it returns to the origin after the cycle which is determined by the combination of X and Y scanning cycle. A table with which the coordinates and times to emit the laser beam can be obtained is to be prepared beforehand, and by emitting the laser bean at the best timing and measuring the distance, the distance of each coordinate (scanning angle) can be measured and the distance and image can be obtained. Laser scanning


当社3D距離画像センサで採用している測距方式は、レーザ光を投射して、ターゲットで散乱した光をフォトダイオードで捉え、その時間差から測距を行う光飛行時間測距法です。 ここで使用しているフォトダイオードは非常に高感度であり、強い外乱光を受けるとノイズを発生します。測距を行うためには、このノイズレベル(N)よりも、受光する散乱光レベル(S)の方が大きいことが必要です。
そこで、当社では光学系方式に「同軸光学系方式」を採用しました。その他に「分離光学系方式」「CCD/CMOSイメージセンサ方式」等があります。 「ECO SCAN」ミラーにより、レーザ光を投射する方向と、フォトダイオードの視野を1測点ずつに集中させる「同軸光学系方式」の採用により 、高い散乱光レベル(S)の受信と、最小限のノイズレベル(N)に抑えることができ、太陽光下でも測距できます。(図4)






This system is not influenced by ambient light.

The ranging method used in our Laser ranging / image sensor is flight time ranging, which obtains the distance to the target measuring the traveling time of the emitting laser light from the sensor to the target and the scattered light received by photo sensor back from the target.
The photo sensor used in this Laser ranging / image sensor has an extremely high sensitivity. If it receives strong ambient light, noise will be generated. For ranging, the level of receiving scattering light (S) must be higher than the noise level (N).
Therefore we adopted the method of coaxial optical system. There are other methods like the method of separated optical system or the method of CCD/CMOS image sensor and so on. In the case of the method of coaxial optical system, with Eco Scan the direction of laser beam projection and the field of view of the photodiode can be concentrated on each measuring point respectively, thus it is possible to have the signal reception under very high level scattering light (S) and to keep the noise level (N) minimized, and this makes it possible to range the distance under the sunlight. (Fig. 4)
In the case of separated optical system sensor which has two independent optical systems for each light emitting and receiving, a filed of view to cover a wide scanning area is required, and so a large volume of ambient light comes to the photo sensor, and consequently the noise level(N) will be increased. (Fig. 5)
And in the case of method which uses an image sensor with ranging capability, [CCD/CMOS image sensor method] the field of view per one pixel of photo diode is narrow, and the noise level (N) can be lower, however due to wide-area laser light emitting at a time, the irradiated light volume per one measuring point becomes smaller, and it is impossible to obtain a high enough scattering t light level(S). (Fig. 6)

This system is not influenced by ambient light.

This is a moving image which was sensed by our laser ranging/image sensor under sunlight.

MovieThis is a moving image which was sensed by our laser ranging/image sensor under sunlight.


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