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  • LTPR series

LTPR series

LED patterns projectors

Opto Engineering® CATALOG

Overview
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LTPR series consists of different LED pattern projectors available with three power intensities and four wavelengths designed for the most demanding structured light applications including 3D profilometry, stereovision, and alignment.

LTPR series consists of LTPRHP3W models featuring = 3W power intensity, LTPRXP models featuring = 10W power intensity designed for continuos mode operation and LTPRUP models designed for strobe-only operation with peak power intensity of = 90W.

Unlike laser sources, our LED pattern projectors ensure sharp edges and homogeneous light without scattering and diffraction effects. Several projections patterns can be easily interchanged to project any kind of shape. Additionally LTPR fetaures built in phase- adjustment for easy alignment of the pattern. Any C-mount optics can be interfaced with LTPR series to project areas with different sizes.

KEY ADVANTAGES

  • LED technology for perfectly sharp edge
    LTPR series ensures thinner lines, sharper edges and more homogeneous illumination than lasers.
  • With laser emitters the illumination decays both across the line cross section and along the line width.
  • Laser emitters lines are thicker and show blurred edges; diffraction and speckle effects are also present.
  • 3W, 10W or 90W strobe options.
  • Wide selection of projection patterns available (custom made upon request).
  • Compatible with any C-mount optics.
LED PATTERN PROJECTORS
Led pattern projectors group
  Optical Specification Electrical Specification Mechanical Specifications Compatibility  
Part number Light color,
Wavelength peak
Spectral
FWHM
Illuminance  Operation
mode
Supply
voltage
LED driving
current,max
Power
consumption
Pulse
width
Estimated
MTBF
Connection
type 
External Length Width Height Strobe
controllers
Lenses Cable Clamping
mechanics
Projection patterns  
    (nm) (klux)   (V)  (mA)         Ø(mm) (mm) (mm) (mm)            
      1 2 3 4 5-6   7 8 9   10                
LTPRHP3W-WLED pattern projector 3W, HP, white white n.a. 30 continuous
and pulsed mode
12 – 24  720 2000 < 4.5 ≤ 10 > 100000 M8 industrial
male connector
37.5 130.4 - - LTDV1CH-17V
LTDVE8CH-20
LTDVE4CH-20
EN2MP series, EN5MP series,
TC series, TCLWD series,
TCHM series
CB244P1500,
CB244P1500L
- PTPR series Info  
LTPRHP3W-RLED pattern projector 3W, HP, red red, 630 nm 15 9 continuous
and pulsed mode
12 – 24  720 2000 < 4.5 ≤ 10 > 100000 M8 industrial
male connector
37.5 130.4 - - LTDV1CH-17V
LTDVE8CH-20
LTDVE4CH-20
EN2MP series, EN5MP series,
TC series, TCLWD series,
TCHM series
CB244P1500,
CB244P1500L
- PTPR series Info  
LTPRHP3W-GLED pattern projector 3W, HP, green green, 520 nm 40 14 continuous
and pulsed mode
12 – 24  720 2000 < 4.5 ≤ 10 > 100000 M8 industrial
male connector
37.5 130.4 - - LTDV1CH-17V
LTDVE8CH-20
LTDVE4CH-20
EN2MP series, EN5MP series,
TC series, TCLWD series,
TCHM series
CB244P1500,
CB244P1500L
- PTPR series Info  
LTPRHP3W-BLED pattern projector 3W, HP, blue blue, 460 nm 20 3 continuous
and pulsed mode
12 – 24  720 2000 < 4.5 ≤ 10 > 100000 M8 industrial
male connector
37.5 130.4 - - LTDV1CH-17V
LTDVE8CH-20
LTDVE4CH-20
EN2MP series, EN5MP series,
TC series, TCLWD series,
TCHM series
CB244P1500,
CB244P1500L
- PTPR series Info  
LTPRXP-WHigh Power LED pattern projector, white white n.a. 85 continuous
mode only
24  700 n.a. < 13 n.a. > 65000 M8 industrial
male connector
105 158.8 - - - EN2MP series, EN5MP series CB244P1501,
CB244P1501L
- PTPR series Buy now  
LTPRXP-RHigh Power LED pattern projector, red red, 630 nm 20 40 continuous
mode only
24  700 n.a. < 13 n.a. > 65000 M8 industrial
male connector
105 158.8 - - - EN2MP series, EN5MP series CB244P1501,
CB244P1501L
- PTPR series Buy now  
LTPRXP-GHigh Power LED pattern projector, green green, 520 nm 40 68 continuous
mode only
24  700 n.a. < 13 n.a. > 65000 M8 industrial
male connector
105 158.8 - - - EN2MP series, EN5MP series CB244P1501,
CB244P1501L
- PTPR series Buy now  
LTPRXP-BHigh Power LED pattern projector, blue blue, 460 nm 25 9 continuous
mode only
24  700 n.a. < 13 n.a. > 65000 M8 industrial
male connector
105 158.8 - - - EN2MP series, EN5MP series CB244P1501,
CB244P1501L
- PTPR series Buy now  
LTPRUP-W90W strobed LED pattern projector white white, 6000 K n.a. 170 strobe only,
constant current driving
n.a.  n.a. 17000 =90
(strobe peak led source power)
≤ 1 > 50000 M12 industrial
male connector
37.7 108.9 46 93 LTDV1CH-17V
LTDV6CH
LTDVE8CH-20
LTDVE4CH-20
EN2MP series, EN5MP series,
ENVF series, TC series,
TCLWD series, TCHM series
CBLT001,
CBLT002
CMHO016 PTPR series Buy now  
LTPRUP-R90W strobed LED pattern projector red red, 618nm 20 65 strobe only,
constant current driving
n.a.  n.a. 17000 =90
(strobe peak led source power)
≤ 1 > 50000 M12 industrial
male connector
37.7 108.9 46 93 LTDV1CH-17V
LTDV6CH
LTDVE8CH-20
LTDVE4CH-20
EN2MP series, EN5MP series,
ENVF series, TC series,
TCLWD series, TCHM series
CBLT001,
CBLT002
CMHO016 PTPR series Buy now  
LTPRUP-G90W strobed LED pattern projector green green, 525nm 40 220 strobe only,
constant current driving
n.a.  n.a. 17000 =90
(strobe peak led source power)
≤ 1 > 50000 M12 industrial
male connector
37.7 108.9 46 93 LTDV1CH-17V
LTDV6CH
LTDVE8CH-20
LTDVE4CH-20
EN2MP series, EN5MP series,
ENVF series, TC series,
TCLWD series, TCHM series
CBLT001,
CBLT002
CMHO016 PTPR series Buy now  
LTPRUP-B90W strobed LED pattern projector blue blue, 460nm 30 20 strobe only,
constant current driving
n.a.  n.a. 17000 =90
(strobe peak led source power)
≤ 1 > 50000 M12 industrial
male connector
37.7 108.9 46 93 LTDV1CH-17V
LTDV6CH
LTDVE8CH-20
LTDVE4CH-20
EN2MP series, EN5MP series,
ENVF series, TC series,
TCLWD series, TCHM series
CBLT001,
CBLT002
CMHO016 PTPR series Buy now  

Last update: 2020-12-07

Notes

  1. With a 35 mm lens, F/N 1.4 at 100 mm working distance without projection pattern at maximum driving current. Estimated value.
  2. To pulse LTRPHP3W, models built-in electronics must be bypassed in order to drive the LED directly.
  3. LTRPHP3W and LTPRXP models have tolerance ± 10%.
  4. Max continuous LED driving current is supplied through the built-in electronics. No external controller is required (only LTRPHP3W and LTPRXP models).
  5. At max LED pulsed current, max LED foward voltage (V) = 3.00 for LTRPHP3W-R, 4.00 for LTRPHP3W-G/B, 3.4 for LTRPHP3W-W (only LTRPHP3W models).
  6. To directly drive the LED, current control is necessary. External compatible controller from LTDV series must be used (only LTPRXP models).
  7. At pulse width ≤ 10 ms, duty cycle ≤ 10% condition. Built-in electronics must be byepassed (only LTRPHP3W models). At 25°C. At max pulse width (1 ms), max pulse frequency = 15 Hz. Contact us to check other allowable combinations of duty cycle-frequency-temperature (only LTPRUP models).
  8. LTRPHP3W models at 55 °C, 720mA.  LTPRXP models at 110 °C. LTPRUP models at 25 °C. 
    • LTRPHP3W models: 2m cable with straight female connector included (CB244P1500). Optional cable with right angled connector CB244P1500L is also available and must be ordered separately.
    • LTPRXP models: 2m cable with straight female connector included (CB244P1501). Optional cable with right angled connector CB244P1501L is also available and must be ordered separately.
    • LTPRUP models: 5m cable with straight female connector included (CBLT001). Optional cable with right angled connector CBLT002 is also available and must be ordered separately.
  9. Including connector.

Technical documents

Data table (Last update: :2020-12-07)
XLS
LTPRHP3W Product user guide
LTPRSMHP3W Product user guide
LTPRXP Product user guide
Product user guide
LTPR pattern positioning
Safety warning UV/IR
Projection lens selection
spinner

Compatible products

Fixed focal megapixel lens, EN2MP series

EN2MP series

Cost-effective 2 Megapixel fixed focal length lenses for sensors up to 2/3”

Fixed focal 5 megapixel lens, EN5MP series

EN5MP series

Cost-effective 5 Megapixel fixed focal length lenses for sensors up to 2/3”

Projection patterns

PTPR series

Projection patterns for LED projectors

CMHO 016

CMHO016

Clamping mechanics for TCxx016 lenses and LTCLHP016-X illuminators

TC telecentric lens for matrix detectors

TC series

Bi-telecentric lenses for sensors up to 2/3”

TCLWD series telecentric lens featuring longer working distance

TCLWD series

132 mm working distance telecentric lenses for sensors up to 2/3”

4x Telecentric Lenses for up to 2/3″″ Detectors: WD 110 mm

TCHM series

High magnification telecentric lenses for sensors up to 2/3”

RT-M3Z1228C-MP

ENVF series

Vari focal lenses for sensors up to 2/3”

CBLT001 cable

CBLT001

Illumination cable PVC black, side 1 M12 connector straight, side 2 cable end - 5 m - for single stage systems

CBLT002 cable

CBLT002

Illumination cable PVC black, side 1 M12 connector right angled, side 2 cable end - 5 m - for single stage systems

Illumination cable, side 1 M8 connector straight,side 2 cable end - 2 m - type 1 labels

CB244P1500

Power cable, side 1 M8 connector straight, side 2 cable end - 2 m - type 1 labels

Illumination cable, side 1 M8 connector straight,side 2 cable end - 2 m - type 1 labels

CB244P1500L

Power cable, side 1 M8 connector angled, side 2 cable end - 2 m - type 1 labels

Illumination cable, side 1 M8 connector straight,side 2 cable end - 2 m - type 2 labels

CB244P1501

Power cable, side 1 M8 connector straight, side 2 cable end - 2 m - type 2 labels

Illumination cable, side 1 M8 connector straight,side 2 cable end - 2 m - type 2 labels

CB244P1501L

Power cable, side 1 M8 connector angled, side 2 cable end - 2 m - type 2 labels

LTPRHP3W-x models featuring built in electronics with multi-turn trimmer for light intesity dimming and ≈ 3W power intensity.
LTPRHP3W-x models featuring built in electronics with multi-turn trimmer for light intesity dimming and ≈ 3W power intensity.
LTPRHP3W-x models featuring built in electronics with multi-turn trimmer for light intesity dimming and ≈ 3W power intensity.

LTPRHP3W and LTPRXP models are designed for continuous mode and integrate built-in electronics that control the current flow through the LED.

LTPRHP3W models integrate a multi-turn trimmer for light intensity dimming while LTPRXP models have fixed current and cannot be dimmed. For LTPRHP3W models, the built-in electronics can be bypassed in order to directly drive the LED through an external controller.

LTPRXP-x models featuring built in electronics, fixed current output and ≈ 10W power intensity.
LTPRXP-x models featuring built in electronics, fixed current output and ≈ 10W power intensity.
LTPRXP-x models featuring built in electronics, fixed current output and ≈ 10W power intensity.

LTPRUP series are the most powerful LED pattern projectors available from Opto Engineering®. These models are used in high speed applications where camera exposure time must be set to the minimum, including planarity control of opaque products and 3D profiling. LTPRUP models are designed for strobe-mode only and can be precisely controlled using compatible LTDV strobe controllers series. LTDV controllers are designed to drive the LED of LTPRUP pattern projectors with perfectly constant current, ensuring repeatable results even when low exposure time is required.

LTPRUP-x models for strobe-only operation featuring ≈ 90W peak power intensity. These models are compatible with CMHO016 clamping mechanics, alternatively three M4 and one M6 threads are available as fixing options.
LTPRUP-x models for strobe-only operation featuring ≈ 90W peak power intensity. These models are compatible with CMHO016 clamping mechanics, alternatively three M4 and one M6 threads are available as fixing options.
LTPRUP-x models for strobe-only operation featuring ≈ 90W peak power intensity. These models are compatible with CMHO016 clamping mechanics, alternatively three M4 and one M6 threads are available as fixing options.

LTPRHP3W Electrical features

These LED devices integrate built-in switching electronics that control the current flow through the LED and which can be easily tuned by the user. This ensures both high light stability and a longer lifetime of the product.

The inner circuitry can be bypassed in order to directly drive the LED. Simply connect the black and blue wires to your power supply instead of the black and brown ones, ensuring that the maximum rates are not exceeded.

Electrical features
Electrical features

Typical emission spectrum of white

Emission spectrum of white LEDs

Typical emission spectrum of RGB LEDs

Emission spectrum of RGB LEDs

Projection lens selection

Any C-mount optics for 2/3” detectors (11 mm image diagonal) can be interfaced with LTPR series to project areas with different sizes by means of the mount adaptor included. Unless the projection optics introduces significant distortion, the shape of the projected pattern will preserve the features and aspect ratio of the engraved pattern.

The projected area dimensions will be “M” times the original dimensions of the pattern, where M is the optical magnification at which the selected projection lens is operating. Telecentric lenses for 2/3” detectors can also be interfaced with LTPRHP3W and LTPRUP models, thus providing telecentric projection of the pattern and enabling unparalleled performance in 3D measurement applications.

Pattern drawing and projection area
Projection distance and projection diameter

2-3″ C-mount lenses

P.D. @50 @75 @100 @150 @200 @250 @300 @400 @500
mm mm mm mm mm mm mm mm mm
Focal
length
D (Projection diameter)
(mm)
6 mm 81 127 172 264
8 mm 58 (*) 92 127 195 264 333
12 mm 35 (*) 58 (*) 81 127 172 218 264
16 mm 41 (*) 58 (*) 92 (*) 127 161 195 264 333
25 mm 55 (*) 77 (*) 99 (*) 121 (*) 165 209 (*)
35 mm 68 (*) 83 (*) 115 146

(*) = spacers may be needed to compensate back focal length

Standard C-mount lenses + LTRHP3W
Standard C-mount lenses + LTRHP3W
Standard C-mount lenses + LTRXP
Standard C-mount lenses + LTRXP
Standard C-mount lenses + LTRUP
Standard C-mount lenses + LTRUP

Telecentric lenses

TC23004 TC23007 TC23009 TC23016 TC23024 TC23036
P.d.(mm) 56.0 60.1 62.2 43.1 67.2 102.5
D.(mm) 5.5 8.3 11.0 20.8 31.4 45.2
TC23048 TC23056 TC23064 TC23072 TC23080 TC23096
P.D.(mm) 132.9 157.8 181.8 226.7 226.7 278.6
D.(mm) 59.8 70.0 80.0 89.9 99.7 117.8
Bi-telecentric lenses + LTRHP3W
Bi-telecentric lenses + LTRHP3W
Bi-telecentric lenses + LTRUP
Bi-telecentric lenses + LTRUP

Pattern selection

Pattern selection

Custom-made pattern

Custom-made pattern

Custom-made patterns can be supplied on request.

A drawing with accurate geometrical information must be submitted (please refer to the instructions here below)

The projection pattern can be easily interchanged by unscrewing the retaining ring that holds the pattern. The pattern outer diameter is 21 mm, while the active projection area is a circle of Ø 11 mm.

The pattern drawing could either cover the entire 11 mm diameter area or be of any shape inscribed within this area (such as a square whose side is 7.78mm or a 8.8x6.6mm rectangle). The projection accuracy depends both on the pattern manufacturing accuracy and the distortion of the projection optics mounted on LTPR models.

The edge sharpness of the projected pattern depends on both the lens resolution and the engraving technique: laser-engraved patterns (part numbers ending in “L”) or photolithography-engraved patterns (part numbers ending in “P”) can be chosen depending on the type of application.

Pattern structure
Find more videos on our Vimeo channel

  • Standard C-mount lenses + LTRHP3W
  • Standard C-mount lenses + LTRXP
  • Standard C-mount lenses + LTRUP
  • Bi-telecentric lenses + LTRHP3W
  • Bi-telecentric lenses + LTRUP

Application examples

  • 3D profilometry
  • Stereovision
  • Alignment
  • Bin picking (robot guidance for fast pick and place)
  • Planarity control of black products(LTRUP strobe projector suggested)
  • 3D Inspection of the height of connector pins
  • Pharmaceutical blister volume vision control
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