ROHM has developed the “RPR-0730”, analog compact optical sensor, capable of high-precision detection of fast-moving objects. This optical sensor can be widely utilized in consumer and industrial equipment applications, including printers and conveyor systems.
The need for more accurate sensing technologies is rising as office and industrial equipment grows more automated and smart.
Accurate object identification technology is crucial for applications like copiers, material or product delivery systems, and label printers. Moreover, greater speed driven by productivity increases makes the introduction of high-speed, high-precision optical sensors vital.
The RPR-0730 is a compact reflective optical sensor (photo reflector).
It Employs:
- Infrared VCSEL, which offers higher directionality than LEDs,
- Enables detection of finer objects.
- Uses a phototransistor with analog output as the receiver, the sensor achieves a response time of 10µs.
- This dual combination enables high-speed, accurate identification of fine lines as narrow as 0.1mm ? previously difficult to detect with conventional LED light sources.
- As an addition to the existing digital output sensor “RPR-0720” series, RPR-0730 expands capability to applications requiring faster sensing, such as print detection in copiers, label printers, or rotational detection in motors and gears.
The package is ultra-compact at 2.0mm × 1.0mm × 0.55mm and incorporates a visible light filtering resin to suppress interference from ambient light or sunshine. This makes reliable detection possible even in settings with fluctuating light levels, such factories or the outdoors.
The sensor can also be easily integrated into equipment needing installation in small, tight locations, like inside conveyors or precise instruments, making it suitable for a wider range of applications.
Availability
Mass production of the new product commenced in October 2025 (sample price: $2.2/unit, tax excluded).
This product is available for online purchase from online distributors such as DigiKey and MOUSER.
Application Examples
- Print detection, paper feed/jam detection in label printers, copiers, shredders, etc.
- Object detection of packages/specimens, workpiece position detection in conveyance systems, automatic inspection equipment, etc.
- Motor/gear rotational detection in industrial robots, etc.
