Devices for DNA sequencer.

PMT (photomultiplier tubes)

In the photosensor field, photomultiplier tubes (or PMT) are known to have particularly high sensitivity. PMT also have dozens of other advantages such as high-speed response time.

PMT modules

The PMT module is basically comprised of a photomultiplier tube to convert light into electrical signals, a high-voltage power supply circuit, and a voltage divider circuit to distribute the optimum voltage to each dynode, all assembled into a single compact case. In addition to these basic PMT modules, Hamamatsu also provides modules having various additional functions such as signal processing, cooling and interface to PC.

Optical blocks

The optical blocks are compact units that contain components such as bandpass filters and dichroic mirrors. They are designed for low light level measurements that use PMT modules and high-sensitivity cameras.

Image intensifiers (I.I.)

Image intensifiers produce high-contrast images even under dark conditions, and are used for night-time (surveillance) viewing as well as for scientific and technical research.

Xenon flash lamp modules

Xenon flash lamp modules are compact devices that integrate a xenon flash lamp (2W or 5W), power supply, and trigger socket. They provide high intensity, high repetition flashes across a broad spectrum from ultraviolet to infrared.

UV-VIS fiber light sources

This is UV-Visible fiber light source for complete range of portable systems. There are two types, L10671 and L10290. The L10671 contains S2D2 (Stable & Small Deuterium) lamp and tungsten lamp which emits range of 200nm to 1600nm. The L10290 contains high brightness deuterium lamp and tungsten halogen lamp which emits range of 200nm to 1600nm.



Si APDs are high-speed, high sensitivity photodiodes having an internal gain mechanism, and can be used in measurements at very low light levels.

APD modules


These are high-speed, high-sensitivity photodetectors using an APD. An APD, a low-noise amplifier, and a bias power supply are assembled together in a compact case. Simply connecting to a low voltage DC power supply allows light measurements with an S/N level dozens of times higher than PIN photodiodes.



The MPPC is one of the devices called silicon photomultipliers (SiPM). It is a photon-counting device using multiple APD (avalanche photodiode) pixels operating in Geiger mode. Although the MPPC is essentially an opto-semiconductor device, it has excellent photon-counting capability and can be used in various applications for detecting extremely weak light at the photon counting level. Various types of devices with different pixel sizes and package types are prepared.

MPPC modules


MPPC modules are photon-counting modules that contain an MPPC (multi-pixel photon counter) capable of detecting extremely low-level light. These modules deliver excellent photon-counting characteristics by extracting maximum MPPC performance.

TDI cameras

TDI cameras

TDI cameras for DNA sequencing applications to realize high speed, high sensitivity and high spatial resolution.

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