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LTPRSMHP3W series
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Projection
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Key advantages

  • Scheimpflug tilt adjustment compatible with C-mount optics
    Focus is maintained even when the pattern is tilted.
  • Light condenser focusing mechanism
    For excellent optical coupling and light throughput.
  • Enhanced optical power
    High numerical aperture condenser lens.
Discover more
Lighting specifications Electrical specifications Mechanical specifications
Part
number
Active
area
Max
pattern
tilt
Light
color,
peak
wavelength
Illuminance Operating
mode
Supply
voltage
Power
consumption
LED
forward
voltage
typical
(max)
Max
pulse
current
Mount Diameter Length
(mm x mm) (deg) (klux) (V) (W) (V) (mA) (mm) (mm)
1 2 3 4 6
LTPRSMHP3W-R 8 x 8 45 red, 625 nm 9 Continuous and strobe 12-24 4.5 2.4 (3) 2000 C 38.5 90.8
Quote
LTPRSMHP3W-G 8 x 8 45 green, 525 nm 14 Continuous and strobe 12-24 4.5 3.3 (4.0) 2000 C 38.5 90.8
Quote
LTPRSMHP3W-B 8 x 8 45 blue, 460 nm 3 Continuous and strobe 12-24 4.5 3.3 (4.0) 2000 C 38.5 90.8
Quote
LTPRSMHP3W-W 8 x 8 45 white, 6000 K 30 Continuous and strobe 12-24 4.5 2.8 (-) 2000 C 38.5 90.8
Quote

Last update 15 Apr 2022

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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 LTRPSMHP3W, models built-in electronics must be bypassed in order to drive the LED directly.
  3. Tolerance ± 10%
  4. Max continuous LED driving current is supplied through the built-in electronics. No external controller is required.
  5. At max forward current. Tolerance is ± 0.06V on forward voltage measurements
  6. At pulse width <= 10 ms and duty cycle <= 10%. Built-in electronics board must be bypassed (see tech info)
  7. At 55 °C, 720mA.

Technical documents

Product user guide
LTPRSMHP3W Manual
LTPRSMHP3W pattern positioning
Safety warning UV/IR

Examples of setup applications

Examples of setup applications

Without tilt adjustment the pattern features are only partly focused.
Without tilt adjustment the pattern features are only partly focused.
With the Scheimpflug adjustment focus is maintained across the entire plane.
With the Scheimpflug adjustment focus is maintained across the entire plane.

Projection area with bi-telecentric lenses (TC series)

Projection area with macro (MC3-03x and MC series) and standard lenses

LTPRSM series units can be interfaced with any type of optics, but the best results are achieved with bi-telecentric lenses.
The projection area is undistorted since tilting the pattern causes a linear extension along only one direction.

Excellent results can also be obtained with zero distortion macro lenses; here, the magnification changes along both axes, but image resolution and distortion still easily allows 3D reconstruction.

With non bi-telecentric lenses, a square pattern becomes a trapezoid in the projection plane, whose parallel sides are indicated as “w” and “W” in the drawings below.

The projection area shown in the chart are also a good approximation for standard C-mount lenses used as macro lenses (eventually equipped with spacers).

Projection area with bi-telecentric lenses (TC series)

ϑ = 0° ϑ = 15° ϑ = 30° ϑ = 45°
Part
number
Projection
distance
Projection
area
Pattern
tilt
Projection
area
Pattern
tilt
Projection
area
Pattern
tilt
Projection
area
Pattern
tilt
P.d. W x h ϑ’ W x h ϑ’ W x h ϑ’ W x h ϑ’
(mm) (mm x mm) (deg) (mm x mm) (deg) (mm x mm) (deg) (mm x mm) (deg)
TC23009 63.3 8.0 x 8.0 0 8.0 x 8.0 15 8.0 x 8.0 30.0 8.0 x 8.0 45.0
TC23016 45.3 15.2 x 15.2 0 15.2 x 15.4 8.01 15.2 x 16.8 17.0 15.2 x 20.0 27.8
TC23024 69.2 22.9 x 22.9 0 22.9 x 23.6 5.4 22.9 x 26.0 11.4 22.9 x 30.5 19.3
TC23036 103.5 32.9 x 32.9 0 32.9 x 34.0 3.7 32.9 x 37.7 8.0 32.9 x 45.3 13.6
TC23048 134.6 43.3 x 43.3 0 43.3 x 44.7 2.8 43.3 x 49.8 6.1 43.3 x 60.3 10.5
TC23056 159.3 51.0 x 51.0 0 51.0 x 52.8 2.4 51.0 x 58.6 5.01 51.0 x 71.3 8.8
TC23064 182.0 58.2 x 58.2 0 58.2 x 60.3 2.1 58.2 x 67.1 4.5 58.2 x 81.7 7.8
TC23080 227.0 72.7 x 72.7 0 72.7 x 73.8 1.7 72.7 x 83.6 3.6 72.7 x 102.0 6.3
TC23096 279.0 85.6 x 85.6 0 85.6 x 88.6 1.04 85.6 x 98.7 3.1 85.6 x 120.9 5.3
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Projection area with macro (MC3-03x and MC series) and standard lenses

ϑ = 0° ϑ = 15° ϑ = 30° ϑ = 45°
Mag. Projection

distance
Projection

area
Pattern

tilt
Projection

area
Pattern

tilt
Projection

area
Pattern

tilt
Projection

area
Pattern

tilt
Suggested

Macro lenses
w (W) x h ϑ’ w (W) x h ϑ’ w (W) x h ϑ’ w (W) x h ϑ’
(x) (mm) (mm) (mm x mm) (deg) (mm) (mm x mm) (deg) (mm) (mm x mm) (deg) (mm) (mm x mm) (deg)
1.00 46.0 8.0 (8.0) x 8.0 0 7.7 (8.3) x 8.0 15.0 7.5 (8.6) x 8.1 30.0 7.3 (8.9) x 8.1 45.0 MC3-03X, MC100X
0.75 48.0 10.7 (10.7) x 10.7 0 10.3 (11.1) x 10.9 11.4 10.0 (11.6) x 11.4 23.5 9.6 (12.1) x 12.3 37.0 MC3-03X, MC075X
0.50 60.0 16.1 (16.1) x 16.1 0 15.5 (16.7) x 16.5 7.6 14.9 (17.5) x 17.9 16.2 14.3 (18.4) x 20.7 26.7 MC3-03X, MC050X
0.33 92.0 24.3 (24.3) x 24.3 0 23.4 (25.3) x 25.1 5.1 22.5 (26.5) x 27.8 10.8 21.4 (28.1) x 33.3 18.3 MC3-03X, MC033X
0.20 136.0 40.1 (40.1) x 40.1 0 38.6 (41.6) x 42.1 3.1 37.0 (43.6) x 46.2 6.6 35.1 (46.6) x 56.8 11.4 MC3-03X
0.10 275.0 79.5 (79.5) x 79.5 0 76.6 (82.6) x 82.4 1.6 73.5 (86.6) x 92.3 3.4 69.6 (92.6) x 114.2 5.8 MC3-03X
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About projection patterns

Photolitography patterns

About projection patterns

The projection pattern placed inside the unit can be changed and integrated with ease: just remove the C-mount adaptor by loosening the set-screws and fix the pattern by screwing the retaining ring.

Different types of stripe and grid patterns are available; the chart below shows the line thickness (0.05 mm) and the gap between neighboring lines for each pattern type.

When these features are projected, they become 1/M times larger, with “M” being the magnification of the projection lens. The number of lines mentioned after each part number indicates the number of features on the active area of the pattern.

With LTPRHP, LTPRXP and LTPRUP projectors
(circular aperture)
With LTPRSMHP projectors
(square aperture)
Format Process Substrate Coating Line
spacing
Thickness Geometrical
accuracy
Edge
sharpness
Active
area
Number
of lines
Max line
length
Active
area
Number
of lines
Line
length
(mm) (mm) (µm) (µm) (mm) (mm) (mm x mm) (mm)
PT00000100P Line Photolitography Soda lime glass Chrome - 0.05 2 1.4 111 11 8 x 81 8 Quote
PT00000100L Line Laser engraving Borofloat glass Dichroic mirror - 0.5 50 50 111 11 8 x 81 8 Quote
PT00000200P Cross Photolitography Soda lime glass Chrome - 0.05 2 1.4 11- 11 8 x 8- 8 Quote
PT00000200L Cross Laser engraving Borofloat glass Dichroic mirror - 0.5 50 50 11- 11 8 x 8- 8 Quote
PT00000300P Stripes Photolitography Soda lime glass Chrome 0.95 0.05 2 1.4 118 7.78 8 x 88 7.78 Quote
PT00000300L Stripes Laser engraving Borofloat glass Dichroic mirror 0.5 0.5 50 50 118 7.78 8 x 88 7.78 Quote
PT00000400P Grid Photolitography Soda lime glass Chrome 0.95 0.05 2 1.4 118 x 8 7.78 8 x 88 x 8 7.78 Quote
PT00000400L Grid Laser engraving Borofloat glass Dichroic mirror 0.8 0.2 50 50 118 x 8 7.78 8 x 88 x 8 7.78 Quote
PT00000500P Edge Photolitography Soda lime glass Chrome - - 2 1.4 11- - 8 x 8- - Quote
PT00000500L Edge Laser engraving Borofloat glass Dichroic mirror - - 50 50 11- - 8 x 8- - Quote
PTST050450P Stripes Photolitography Soda lime glass Chrome 0.45 0.05 2 1.4 1122 11 8 x 816 8 Quote
PTST050200P Stripes Photolitography Soda lime glass Chrome 0.2 0.05 2 1.4 1144 11 8 x 832 8 Quote
PTST050100P Stripes Photolitography Soda lime glass Chrome 0.1 0.05 2 1.4 1173 11 8 x 853 8 Quote
PTST050050P Stripes Photolitography Soda lime glass Chrome 0.05 0.05 2 1.4 11110 11 8 x 880 8 Quote
PTST010010P Stripes Photolitography Soda lime glass Chrome 0.01 0.01 2 1.4 11550 11 8 x 8400 8 Quote
PTST020020P Stripes Photolitography Soda lime glass Chrome 0.02 0.02 2 1.4 11275 11 8 x 8200 8 Quote
PTGR050450P Grid Photolitography Soda lime glass Chrome 0.45 0.05 2 1.4 1122 x 22 11 8 x 816 x 16 8 Quote
PTGR050200P Grid Photolitography Soda lime glass Chrome 0.2 0.05 2 1.4 1144 x 44 11 8 x 832 x 32 8 Quote
PTGR050100P Grid Photolitography Soda lime glass Chrome 0.1 0.05 2 1.4 1173 x 73 11 8 x 853 x 53 8 Quote
PTGR050050P Grid Photolitography Soda lime glass Chrome 0.05 0.05 2 1.4 11110 x 110 11 8 x 880 x 80 8 Quote
PTCD010P Cloud of dots pattern
density 10.5%
Photolitography Soda lime glass Chrome - - 2 1.4 11- - 8 x 8- - Quote
PTCD020P Cloud of dots pattern
density 20%
Photolitography Soda lime glass Chrome - - 2 1.4 11- - 8 x 8- - Quote
PTCD035P Cloud of dots pattern
density 35%
Photolitography Soda lime glass Chrome - - 2 1.4 11- - 8 x 8- - Quote
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Photolitography patterns

Substrate Soda lime grass
Coating Chrome
Geometrical accuracy 2 μm
Edge sharpness 1.4 μm
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