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  • LTPRXP series

LTPRXP series

10W continuous LED pattern projectors

Opto Engineering® CATALOG

Overview
Models
Downloads
Related
Tech info
Projection
Patterns
Resources

LTPRXP series features powerful LED pattern projectors designed for inline or offline applications including quality control, 3D reconstruction, dimensional measurement, planarity control, robot guidance and alignment applications.

Unlike laser sources, which typically show poor line sharpness and power distribution as well as scattering, speckle and diffraction effects, LTPRXP pattern projectors integrate LED sources and precisely engraved patterns ensuring thinner lines, sharper edges and more homogeneous illumination.

The high power of LTPRXP models decreases the sensitivity of the vision system to ambient light, making these projectors suitable for 3D mapping of objects. Additionally, the LTPRXP models’ large heat sink ensures long lifetime of the LED module and driver electronics, even at the highest power rates.

LTPRXP series is available in different colors and features a wide selection of projection patterns (see PTPR series) which can be easily interchanged to project any kind of shape.

KEY ADVANTAGES

  • LED technology for perfectly sharp edges
    Thinner lines, sharper edges and more even illumination than lasers
  • High power
    For minimal sensitivity to ambient light
  • Wide selection of projection patterns available (custom-made upon request)
    Chrome-on-glass patterns with geometrical accuracy down to 2 μm
LED PATTERN PROJECTORS
LTPRXP series

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

LTPRXP models have fixed current and cannot be dimmed.

tech_01

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

Lighting specifications Electrical specifications Mechanical specifications
Part
number
Active
area
diameter
Light
color,
peak
wavelength
Illuminance Operating
mode
Supply
voltage
Power
consumption
LED
forward
voltage
typical
(max)
Mount Diameter Length
(mm) (klux) (V) (W) (V) (mm) (mm)
1 2 3
LTPRXP-R 11 red, 623 nm 40 Continuous 24 13 9 (9.8) C 105 116.8 Quote
LTPRXP-G 11 green, 523 nm 68 Continuous 24 13 14.4 (15) C 105 116.8 Quote
LTPRXP-B 11 blue, 460 nm 9 Continuous 24 13 14 (14.6) C 105 116.8 Quote
LTPRXP-W 11 white, 4000 K 85 Continuous 24 13 14 (14.6) C 105 116.8 Quote
Last update 31 Mar 2022

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. Tolerance ± 10%
  3. At max forward current.
  4. Max continuous LED driving current is supplied through the built-in electronics. No external controller is required.
  5. At 30°C, 700mA.

Technical documents

Product user guide
pdf
LTPRXP Manual
pdf
LTPR pattern positioning
pdf
Safety warning UV/IR
pdf
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If you are looking for a matching lens, refer to our wide range of optical solutions

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”
A wide range of solutions for every machine vision challenge.

Macro & Fixed focal length lenses

A wide range of solutions for every machine vision challenge.

For high precision control of our LED lightings, see our range of LED controllers

Strobe controllers

LTDV series

LED Strobe controllers
LTIC Series main image

LTIC series

LED lighting controllers

To power our pattern projectors, refer to

power_supply

PS series

Power supplies

Interested in projection patterns? Discover

Projection patterns

PTPR series

Projection patterns for LED projectors

Some related accessories you might be interested in

CMHO clamping support for telecentric lenses

CMHO series

Clamping mechanics for lenses

Looking for different power intensities?

LTPRHP3W series

LTPRHP3W series

3W LED pattern projectors
LTPRUP series

LTPRUP series

90W strobe LED pattern projectors

Take a look at our wide selection of area scan cameras

COE-x group cameras

COE-G series

GenICam® PoE C-mount cameras
COE-x group cameras

COE-U series

GenICam® C-mount USB3 cameras

Projection lens selection

C-mount optics for 2/3” sensors (11 mm image diagonal) can be interfaced with LTPRXP series to project areas with different sizes. 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.

Projection lens selection
projection_selection

Below follows a list of the projection diameters (D) and the recommended projection distances (P.d.) achieved with different types of optics.

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 + LTRXP
Standard C-mount lenses + LTRXP

Pattern selection

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 7.78 mm or an 8.8 x 6.6 mm rectangle).

The projection accuracy depends both on the pattern manufacturing accuracy and the distortion of the projection optics mounted on the projector.

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.

Standard patterns


Custom-made patterns can be supplied on request. A drawing with accurate geometrical information must be submitted (please refer to the instructions here below).

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