Camera attachment TRiCATT

The TRiCATT (time-resolved intensified camera attachment) from Lambert Instruments is a very compact amplifier for high-speed cameras or spectrometers. Phenomena that occur very quickly or under very low light conditions (or under very low fluorescence) can be captured and imaged.

Depending on the measurement setup, the TRiCATT can be individually optimized. In addition to amplifying the signal, it can also be used as an extremely fast electrically switched optical shutter that can be used either directly via the computer or via additional control units. Different lens sizes (relay 1:1 to 3:1, 18 or 25 mm) and mounts (F or C) allow the TRiCATT to be combined with the vast majority of common cameras.

What particularly characterizes the TRiCATT are the possible measurements including modulation in frequency space at extremely high frame rates in addition to light amplification. “Modulation imaging is used to solve problems in various imaging techniques, such as the phase problem in X-ray diffraction, the imaging of extremely fast biological processes, or to achieve a higher, more analyzable image quality in astronomy.

The TRiCATT can also be equipped with an optional mechanical shutter that can be closed between measurements to increase the lifetime of the amplifier and can be used to protect against excessive stray light or laser radiation, for example. It is mounted instead of the objective port and can be controlled either via the TRiCATT software or via an external TTL signal.


  • Time-resolved imaging and spectroscopy
  • Time-dependent fluorescence
  • FLIM (Fluorescence Lifetime-Imaging Microscopy)
  • FRET (Förster Resonance Energy Transfer)
  • PIV (Particle Image Velocimetry)
  • LIF (Laser Induced Fluorescence)
  • Combustion analysis
  • Single molecule imaging
  • Bio- and chemiluminescence
  • Plasma physics or astronomy
  • X-ray imaging (CDI) or time-dependent Raman diffraction.
Angebot anfordern

    Specifications image intensifiers

    TriCATT 18TriCATT 25
    Image intensifierProximity-focused Gen II or Gen III (filmless)
    Input windowProximity-focused Gen II or Gen III (filmless)
    Input diameter (mm)1825
    Input window thickness (mm)5.56.0
    Effective areaGen II: ø 17.5 mm,
    Gen III: 13.5 x 10 mm
    Gen II: ø 24.5 mm,
    Gen III: 16 x 16 mm
    Sensitivity and spectral range
    Min. gate width (FWHM)HiCATT G 40n: 40 ns
    TRiCATT G 2n: <3 ns mit GEN II, 5 ns mit Gen III
    Max. repetition frequencyHiCATT G 40n: 100 kHz
    TRiCATT G 2n: 300 kHz, 2.5 MHz in burst mode
    Luminous gain* (max.) (lm/m2/lx)14.80030.00040.00022.00033.00022.000
    Equivalent background input*0.006
    Typical output resolution (lp/mm)
    1:1 lens coupling
    2:1 lens coupling
    3:1 lens coupling




    Lens coupling/ output flange1:1 C-mount
    2:1 C-mount
    1:1, 2:1, 3:1 F-mount on request
    1:1 F-mount
    2:1 F-mount
    3:1 F-mount
    PhosphorP43 (P20 or P46 on request)
    (*luminous gain and EBI specified for P43 phosphor screen)
    Spatial resolution bare intensifierGen II: up to 69 lp/mm
    Gen III: up to 64 lp/mm
    Supply voltage (DC) (V)15
    Power (W)10
    Operating temperature (°C)5-40
    Weight (kg)1:1 relay lens: 1.21:1 relay lens: 3.5
    2:1 relay lens: 2.5
    * gain and EBI are specified for image intensifiers with P43 phosphor screen

    Specifications modulations

    Frequency range100-120 MHz (standard)
    Up to at least 250 MHz with an external signal generator
    Frequency adjustment resolution1 kHz
    Frequency deviation100 ppm max.
    Phase adjustment range0-360° in 1° steps, phase deviation < 0.01°
    Harmonics suppressionBetter than 25 dB
    High light level protectionIntegrated intensifier protection, switches off all DC and AC power
    TRiCATT GM, as TRiCATT M plus:
    Frequency range0 – -100 kHz
    Min. gate width (FWHM)40 ns
    Gate pulse width control40 ns - 10 s, 10 ps resolution
    Gate delay time control0 - 10 s, 10 ps resolution
    Dead time after trailing edge100 ns
    Pulse generator resolution ; jitter10 ps ; < 35 ps
    Insertion delay45 ns
    Trigger input3.5 V-5.0 V 50 Ω
    Output A/B pulse width controlFully programmable, 50 Ω source impedance
    Output A/B delay controlFully programmable, 50 Ω source impedance
    InterfaceUSB 2.0
    Output 1. TRiCATT
    AC signal levelAdjustable from -30 to 0 dBm
    AC signal after amplification50 Vpp max.
    Output 2. Lightsource
    Programmable OptionMulti-LEDModulated LASER diodeAOM for CW LASER
    AC signal levelAdjustable in 250 steps0.00 - 1.00 V peak-peak0.00 - 1.00 V peak-peak
    DC current/voltage adjust0-1000 mA, 12 bit0.00-1.00 V
    FrequencyHalf the frequency of Output 2
    Modulation inputInput for external modulation signal, 250 mV (peak-peak), 50 Ω
    External trigger inputLVTTL
    Trigger inputAvailable upon request
    Monitor outputOutput modulation signal monitor
    InterfaceUSB 2.0

    Software and accessories

    • Amplifier control module for automated measurements, limiting of the anode current to protect the amplifier and increased amplifier performance
    • Extensive on-site training by Lambert Instruments
    • Capture Software
    • Intensifier Control Software