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Diode laser module 80mW 450nm BLUE adjustable focus

Diode laser module 80mW 450nm BLUE adjustable focus

Collimator: Acrylic Connection type: 110-230VAC
LDM-80-450: 80 mW blue (450 nm) dot laser module with adjustable collimator. Compact laser diode module for positioning and alignment.

€175.53

Delivery time: In stock

Collimator
Connection type
Product number: LDM-80-450.1
Description

Diode laser module 80mW 450nm BLUE adjustable focus

80 mW Blue (450 nm) Spot Laser Module – LDM-80-450: Compact, high-performance laser diode module that projects a sharp laser spot—with an adjustable collimator (focus range approx. 5 cm to infinity). Suitable for positioning and marking tasks, as well as applications requiring a short-wavelength blue laser.

  • Blue laser spot (450 nm) with 80 mW
  • Adjustable collimator, focus range approx. 5 cm to infinity
  • Laser Class 3B when configured

Electrical Connection

Standard: In the standard version, power is supplied via two red/black wires, each approximately 20 cm long.

Hollow connector: The 230 V version includes a power cable with a 5.5/2.1 round hollow connector, compatible with the plug-in power supply.

12–26 V version: The laser modules are equipped with a flexible connection cable. If you select this version, a small adapter is heat-shrunk onto the supply cable. The ends are open and fitted with wire end ferrules, allowing them to be connected directly to an existing power supply, a PLC, or a busbar. Reverse-polarity protection is built-in.

Delivered WITHOUT a mount! Please order separately.

Technical Specifications

Laser Power 80 mW
Wavelength/Color 450 nm BLUE
Focus range approx. 5 cm to infinity
Divergence typ. <0.7 mrad
laser class: 3B
Power supply 3–4 VDC / < 250 mA
Length of connection cables Stranded wires approx. 200 mm, barrel connectors approx. 200 mm, 12–24 VDC approx. 1000 mm
Dimensions 12 x 37/42 mm
Temperature range -15°C to +45°C
Service life typ. > 25,000 h

Notes

  • Observe the laser class!
  • For more information on laser safety, click here.

Options

  • 3-element glass lens for improved beam characteristics and long-term thermal stability
  • DC barrel connector for plug-in power supply
  • 12–24 V adapter connector, heat-shrink-wrapped onto the power cable
Properties
Collimator: Acrylic, Glass
Connection type: 12-25VDC, 110-230VAC, Barrel connector, Wires
Fixed focus: the optics are set at the factory to a fixed distance and cannot be changed – typically a point in the range 1–5 m. Benefit: no accidental adjustment possible, stable over the entire service life. Trade-off: cannot be adapted to other distances. Adjustable: the optics sit in an adjustable brass ring at the front of the module and can be focused by the user to any desired distance (5 cm to infinity). After adjustment the optics are secured with thread-locking varnish in the thread. Which variant? Fixed focus for defined series production with constant distance, adjustable for flexible applications and one-off setups.
Industrial alignment: point lasers as a reference for aligning machines, conveyors, roller tracks and light barriers. Distance measurement: as a light source in triangulation sensors for distance and profile measurement. Marking: in research and test setups as precise reference points. Optical test setups: as a light source for beam splitting, diffraction and interference experiments. Workpiece positioning: in production as a reference point for drilling and placement operations. Construction: plumb points, height references, wall alignment (not our domain – we supply industrial quality, not DIY plumb lasers).
The human retina is most sensitive in the green spectral range around 555 nm – that is the peak of the eye's spectral sensitivity. Green laser light at 520 nm sits close to this peak, while red light at 650 nm sits at the edge of visual sensitivity. Specifically: a 5 mW green point laser looks visually about as bright as a 25–35 mW red point laser. Practical effect: at equal perceived brightness, green gives you a lower laser class – Class 2 instead of Class 3R for red. This simplifies safety measures significantly. Trade-off: green laser diodes are more expensive and more temperature-sensitive than red ones.
Beam divergence describes how strongly a laser beam expands with distance. It is measured in milliradians (mrad). Example: a beam with 1 mrad divergence widens by 10 cm over 100 m distance. For point lasers low divergence is desirable – so the dot stays sharp over long distances. Typical values: 0.5–2 mrad after collimation. Influencing factors: emitter size of the laser diode, quality of the collimator optics, wavelength. For our OEM modules the divergence is typically specified in each module's datasheet or optimized at the factory.
Class 3R: increased risk on direct viewing of the beam, but the natural blink reflex usually still provides sufficient protection. Safety goggles are recommended but not strictly required in all cases. Maximum 5 mW in the visible range. Class 3B: direct radiation is hazardous to the eye, but diffuse reflections are usually harmless. Safety goggles are mandatory in the open beam area. Beam enclosure where possible, clear marking of laser areas, training of personnel. Maximum 500 mW. Both classes require a laser safety officer in commercial use.
Point lasers (also called dot lasers) project a sharp spot of light – ideal for precise single-point marking, distance measurement, triangulation and alignment tasks over large distances. Benefit: all the optical power is concentrated at the point, giving very high visibility even at low power. Line lasers project a line – ideal for cutting lines, paths and boundaries. Cross lasers project a cross from two lines – ideal for centring and 2D alignment. Rule of thumb: point for „this spot here“, line for „along this axis“, cross for „centred exactly on this intersection“.