2048R Linescan Camera

The Sensors Unlimited 2048R Linescan camera boosts the speed of spectral-domain optical coherence tomography, imaging to >147,000 lines per second (lps) via the medium Camera Link® interface. To optimize performance, there are three speed ranges providing the flexibility lacking in swept-source systems. They deliver the high resolution, stability and reliability needed for optical coherence tomography (OCT) of blood flow or capturing large tissue volumes.

Compact and slim, the camera features an InGaAs PDA of 2048 pixels on 10-μm pitch with an aperture height of 210 μm. High-spectral resolution and QE are provided over the short-wave infrared (SWIR) wavelengths from 0.98 to 1.65 μm, enabling deeper imaging. The simultaneous acquisition across all pixels delivers the superiority, repeatability and long operating life needed for for vital bio-medical and deep tissue imaging

• 2048 x 1 pixel array with 10 µm pitch
• High QE from 0.99 µm to 1.65 µm
• Solid-state FPA with snapshot exposure
• User controlled exposure and line period
• Line rates from 9.5 k to >147 k-lps in 3 speed ranges
• >1590 : 1 dynamic range in low sensitivity >510:1 in high sensitivity
• External triggering of line and exposure via Camera Link CC1 line
• Enclosed body < 136 cm3 (< 8.3 in3 )
• Low power < 4 W over 6-12 V
• Acquires and saves user non-uniformity corrections
• Medium 12-bit Camera Link® interfaces
• Meets FCC and CE requirements for radiated and conducted emissions, for immunity from such emissions and for ESD resistance
• The GL2048L and R are compliant with EU RoHS Directives

• Mechanical
• Dimensions

  8.3 cm x 10.2 cm x 1.6 cm (excludes I/O connectors, and lens adapter)
  3.25 in x 4 in x 0.64 in (excludes I/O connectors, and lens adapter)

• Weight

  < 240 g or 8.6 oz (no lens or adapter)

• Lens Mount

  M42x1-6H with ~6 mm to image plane.

  None, fixed distance C-Mount adapter or adjustable distance F-Mount adapter (see ordering info)                                                        

• Spectrometer Mount

  4 tapped 8-32 holes in 2 inch square pattern                                                                                                

  2 tapped 8-32 holes in-line with image axis                                                               

  O-Ring light seal, 1.9 inch diameter,  1/16th thickness

• Camera Tripod Mount

  2 tapped ¼-20 holes, one on bottom, one on side wall.

• Environmental & Power
• Operating Case Temperature

  +10°C to +35°C

• Storage Temperature

  -10°C to 60°C

• Humidity

  Non-condensing

• Power Requirements

  AC Adapter: 100-240 VAC, 47-63 Hz
  DC Voltage: +6 to 12 VDC (Maximum: 13.1 VDC)
  Typical Power: <4 W at 30 °C case temp
  In-rush Current: <1.25 A at 12 VD

• Interfaces
• Control

  GL2048L: Single SDR 26-pin connector  GL2048R: Dual SDR 26-pin connectors

• Image Data

  GL2048R: Dual SDR 26-pin connectors

• Power

  CUI Inc. PJ-056, 1.0mm X 3.8mm power jack

• Trigger: Input

  Via Camera Link CC1 line

• Status LED

  Green: Power on

• Regulatory Compliance
• CE

  Meets class A for emission, immunity & ESD standards, RoHS

• FCC

  Meets requirements for Part 15, Subpart B, Class A, 2006

• Electro-Optical Performance
• Sensor Format ¹

  2048 pixels with 2048 readout ADCs

• Optical Aperture (pixel height) 1

  210 µm

• Quantum Efficiency ¹

  >60% 0.99 µm-1.65 µm; > 70% peak response @ 1.55  µm

• Gain Capacitor Setting (High)

  	Typical	Specification
  Net full well capacity (Me-) 2	1.1
  Gain (e-/cnt) 1,3	270
  Temporal noise (rms counts) 1,2	3.1	< 3.4
  Dynamic range 1,2		> 1200:1
  Differential non-linearity 1,2	+/- 1.1	< +/- 2.5%

• Gain Capacitor Setting (Medium High)

  	Typical	Specification
  Net full well capacity (Me-) 2	1.3
  Gain (e-/cnt) 1,3	325
  Temporal noise (rms counts) 1,2	2.2	< 2.8
  Dynamic range 1,2		> 1450:1
  Differential non-linearity 1,2	+/- 1.5	< +/- 2.5%

• Gain Capacitor Setting (Medium Low)

  	Typical	Specification
  Net full well capacity (Me-) 2	1.6
  Gain (e-/cnt) 1,3	390
  Temporal noise (rms counts) 1,2	1.9	< 2.3
  Dynamic range 1,2		> 1750:1
  Differential non-linearity 1,2	+/- 1.5	< +/- 2.5%

• Gain Capacitor Setting (Low)

  	Typical	Specification
  Net full well capacity (Me-) 2	2.1
  Gain (e-/cnt) 1,3	520
  Temporal noise (rms counts) 1,2	1.7	< 1.9
  Dynamic range 1,2		> 2100:1
  Differential non-linearity 1,2	+/- 1.5	< +/- 2.5%

   

• Bad Pixel Specification

  White, dark, noisy or pixels exceeding +/- 20 % of the mean value when illuminated at 50% of full well. Number of bad pixels limited to a maximum of 1% of array total; on-board pixel replacement function

• Exposure Time ^1,3

  4.5 µs to 0.1 ms, user programmed in pixel clock cycles or via the width of the ext. trigger

• Self-Triggered Line rates

  Three ranges:9.5 k to 80 k-lps, 73 k to 126 k-lps; and 114 to 147 k-lps

• Trigger Modes ³

  Free run, single line per trigger (ET set by camera), or variable exposure

• External Trigger ³

  Via CC1 signal line in Camera Link cable

• External Variable ET

  User set by the duration of trigger input signal (minimum ET pulse: 10 µs)

• External Trigger Jitter

  +/-1 clock cycle: nominally 25 ns

• Pixel Rate

  2048L:157 Mpix/s with 2 x 12-bit words transferred on each Camera Link strobe clock at 80 MHz
  2048R: 301 Mpix/s with 4 x 12-bit words transferred on each Camera Link strobe clock at 80 MHz

• Digital Output Format

  12-bit base Camera Link®; recommend NI PCIe-1433 or frame grabber with BW of >313 Mbytes/s

• Readout Mode

  Integrate while read, differential double sampling

• Corrections (preset OPRs)

  Factory calibrated gain, offset, and bad pixel replace.

• Resolution

  2048 x 1

• Pixel Pitch

  10 μm

• Line Rate

  147,000 lps

• Spectral Response

  0.99 to 1.61 μm

• ¹Actual formats and performance governed by pixel size options (dark current may limit longest usable ET, especially at high gain); GL2048R specs are still to be determined.
  ²Camera readout noise limited for low & medium gain settings; dark shot noise limited for high gain settings at longer exposure times.
  ³User selectable by command over Camera Link® serial lines.

• Optical Coherence Tomography at: 1.04, 1.31, 1.55 µm
• High-resolution spectroscopy of intense spectra from .940 to 1680 nm
• SWIR Machine vision of moving objects