11 best diode lasers
Diode lasers are a type of laser that utilize a semiconductor diode as the active medium to generate coherent and highly focused light. These lasers are commonly used in various applications, including industrial, medical, and consumer electronics.When it comes to safety goggles, glasses, and eye protection in the context of diode lasers, there are several important considerations:
Wavelength Specificity: Diode lasers emit light at specific wavelengths, which can vary depending on the material used in the diode. Safety goggles or glasses designed for diode laser protection are usually wavelength-specific, meaning they are designed to block or attenuate only the wavelengths emitted by the diode laser in question. It is crucial to choose protective eyewear that matches the laser's wavelength to ensure effective protection.
Optical Density (OD): Safety goggles and glasses are rated with an optical density (OD) value, which indicates their ability to attenuate laser light. The higher the OD value, the greater the level of protection provided. For diode lasers, it's essential to select goggles or glasses with the appropriate OD rating for the specific laser being used.
Laser Class: Diode lasers are classified into different laser classes (e.g., Class 1, Class 2, Class 3R, Class 3B, and Class 4) based on their potential for harm. The appropriate level of eye protection depends on the laser's class. For higher-class lasers (e.g., Class 3B and Class 4), goggles with higher OD values are typically required.
Frame Design: Safety goggles or glasses should have a design that provides a secure and comfortable fit around the eyes to prevent any laser light from leaking in around the edges.
Quality and Compliance: Ensure that the safety goggles or glasses you choose meet relevant safety standards and regulations, such as those set by organizations like the American National Standards Institute (ANSI) or the International Electrotechnical Commission (IEC).
Training and Education: Anyone working with diode lasers should receive proper training on laser safety protocols, including the correct use of protective eyewear. Laser safety officers may be responsible for ensuring compliance with safety measures.
Laser Interlocks and Control Measures: In addition to eye protection, diode laser systems often include interlock systems and control measures to prevent accidental exposure. Always follow these safety procedures when working with diode lasers.
Remember that laser safety is essential to protect your eyes from potentially harmful laser radiation. Selecting the right safety goggles or glasses for the specific diode laser you are using is crucial to minimize the risk of eye injuries.
Below you can find our editor's choice of the best diode lasers on the market
HiLetgo 10pcs 5V 650nm 5mW Red Dot Laser Head Red Laser Diode Laser Tube with Leads Head Outer Diameter 6mm
Product description
Description:
Output Power: 5mW
Wavelength: 650nm
Working Voltage: 5V
Operating Current: less than 20 mA
Laser Shape: Dot
Working temperature: -10°C to +40°C
Housing material: High quality Copper
Dimensions: 6.5 x 18mm
Wire connection: Red wire connect to Positive, Blue wire connect to Negative
Package included:
10PCS 5V 650nm 5mW Red Dot Diode Laser Heads
- 5V 650nm 5mW Red Dot Diode Laser Head Red Laser Diode 6mm Red Laser Diode Laser Head
- Wave length: 650nm
- Wide range of wroking temperature: -10°C to +40°C
- Application: Level instrument, Ground instrument, Long distance laser listener remote light control, Long distance laser wireless communication
User questions & answers
| Question: | Do these diodes require a driver |
| Answer: | No they don't just the right volts |
| Question: | Because these laser diodes run at 5v power, would it be possible to wire them to a wall outlet stepdown adapter with an ac to dc converter |
| Answer: | you could run them off of any 5vdc source. 5vdc wall worts are very common. most phone charger ipod chargers etc are 5v output. Go to Goodwill (resale shop) half the ac adapters on the wall will be 5v. I used these lasers for a student project with Arduino controllers they were surprisingly bright. The focus was not very good (big oval) but the collimation (beam spread) was acceptable and the brightness made up for the lack of focus. Be careful the wires are delicate and will need heat shrink applied over body to make them durable enough for even mild flexing. |
| Question: | if used as a laser pointer, what is the working distance of this laser diode |
| Answer: | I have no specific measurement, but I've aimed one at a wall at least 60 feet away and still seen a bright red dot. |
| Question: | Do the laser diodes require a driver or do they already have one |
| Answer: | No they require no driver, just a simple 5-volt DC power source, a phone charger, even batteries, just so long as it is five volts. Be sure not to run it on the 3.6 volt power supplies, it will dramatically reduce the beam brightness. The diodes are focusable, simply turn the brass casing outwards and inwards to focus it for whatever you need. |
20pcs 5V 650nm 5mW Red Dot Laser Head Red Laser Diode Laser Tube with Leads Head Outer Diameter 6mm
MakerFocus
Product description
Description
Red Dot Laser Head
Features
Material: Copper
Laser wavelength: 650nm
Product size: 6 * 13.5mm
Working life: 5000H
Output power: 0.3-10mw
Working voltage: 5V
Working current: ≤30mA
Output wavelength: 650nm
Working temperature: -25-65℃
Spot angle: ± 5°
Light spot size at 10 meters: <10nm
[Wide Application]: Level instrument, ground instrument, electric toys, long distance laser wireless communication, stage light, flashlight, laser gyro, laser pointer, electric toy, industrial use. etc.
[Wire connection]: Red wire connect to Positive, Blue wire connect to Negative
Package Including:
20 * Red Dot Diode Laser Heads
- [Wide Application]: Level instrument, ground instrument, electric toys, long distance laser wireless communication, stage light, flashlight, laser gyro, laser pointer, electric toy, industrial use. etc.
- [Wroking Temperature]: -25℃ to 65 ℃; Spot angle: ± 5°.
- [Wire connection]: Red wire connect to Positive, Blue wire connect to Negative
- [Wave Length]: 650nm; [Working Voltage]: 5V;
- [Working Current]: ≤30mA; Working life: 5000H; Output power: 0.3-10mw.
User questions & answers
| Question: | are these considered class 1 or class 1m |
| Answer: | No, not 1 or 1m. It's 3B. Do not irradiate people with the laser during use, and do not observe the laser with naked eyes |
HiLetgo 3pcs 650nm 5mw Laser Head Laser Tube Adjustable Focus 3~5V Red Laser Tube for Sight Positioning Sighting Telescope(Dot/Horizontal Line/Cross Optional) (Dot)
HiLetgo
Product description
Description
Output Power: 5mw
Wavelength: 650nm
Working Voltage: 3~5V
Laser Shape: Point/Cross/Line
Focusable: Yes
Dimensions: 12*12*40mm
Package Included
3 x Red Laser-Point Module
- Output Power: 5mw
- Wavelength: 650nm
- Working Voltage: 3~5V
User questions & answers
| Question: | What kind of battery/set up would I need to hook them up to an on/off switch |
| Answer: | My application of these simply used a pair of AA batteries in series (3V total), and a SPST toggle switch. Works beautifully. |
| Question: | What is the maximum current this can be ran at without frying the laser |
| Answer: | Probably whatever current they happen to draw at 5V. Measure their current draw at that voltage and you'll know. |
| Question: | Does it require a driver or current limiting resistor |
| Answer: | They only require 4-5 volts DC. |
| Question: | Do these have constant current drivers inside? And, how many milliamperes of current at about do these draw |
| Answer: | Given their rating, they almost certainly draw about 1.2mA average, or about 20mA peak (they don't produce continuous light, it's pulsed to make it bright but efficient). And... yes. LEDs are constant-current devices until you reach their "knee", at which their current becomes unregulated and they cascade. |
Professional OD 6+ 190nm-490nm Wavelength UV light / Violet & Blue Laser Safety Glasses for 405nm, 445nm, 450nm,473nm Laser (Black)
FreeMascot
- Glass lens
- Wavelength: 190nm-490nm
- Optical density: OD 6+
- Visible light transmittance: 55%
- EN207: 1998 + A1EN207: 1998 + A1: 2002 approved (European laser eyewear standards for laser safety eyewear).
- Compatible with 275nm, 365nm, 405nm, 445nm, 450nm laser light
User questions & answers
| Question: | Do these black blue light from screen |
| Answer: | Yes, this glasses can block violet and blue laser light (190-490nm ) wavelength light . |
| Question: | Do these glasses have glass or plastic lenses |
| Answer: | The lens for this type is made of special polycarbonate (PC) from Bayer Germany , it is not glass. Thanks |
| Question: | I purchased an high intensity 395 - 410 nm uv blacklight ultraviolet led flashlight, will these glasses work |
| Answer: | Yes, this glasses works great for violet light |
| Question: | Would these work for UVC germicidal light |
| Answer: | No uvc is 100nm to 280nm 190 nm is not blocking nm less than 190 So uvc at 100nm ... 189nm gets through |
Product features
High Quality Filters
FreeMascot offers advanced collection of polymer or polycarbonate laser safety eyewear filters. We employ leading material science at our production facilities to consistently manufacture the most advanced laser absorbers and coatings. Our development efforts have resulted in a complete line of polycarbonate laser eyewear.
Multi Frames to Select
We offer a variety of standard and fit-over frames to accommodate your specific needs. Our frames are built for comfort and protection. All are made to fit multiple filters.
Safe Packing
Each pair of safety glasses comes with a protective storage case and a cleaning cloth.
LaserPair Laser Glasses DIN CERTCO Certified , 800 – 1100nm Absorption Type of Laser Protective Glasses Diode, Nd:yag Laser Protection Glasses Multi Wavelength 808nm, 980nm, 1064nm , Laser Safety Glasses
Product description
Laser safety Glasses 800 – 1100nm O.D 5+ Visible light transmittance: 60%
1060 - 1070nm O.D 7+
Typical laser wavelength：808nm, 980nm, 1064nm
L-Rating:808 – 980nm DIR L5
L-Rating:1000 – 1070nm DIR L7
Application:dental lasers safety ; ND:YAG Laser protection
If invisible laser hurt eyes ?
Yes. Usually invisible laser including 808nm, 980nm diode laser and 1064nm ND:YAG laser, they are even more dangerous than visible laser, and should be more careful while work with it.
If low power green laser pointer hurt eyes ?
Yes. We mean low power green laser pointer usually is 5mw to 20mw. This is enough to hurt eyes if donot use it in right way. It is prohibited to see the laser beam on wall, and 100% prohibited to shoot eyes by this kind laser pointers.
If a sunglasses can instead of laser safety glasses ?
No, The filter of laser safety glasses have special absorber component to reduce the laser engerny in geometry times. Common sunglasses even cannot block any laser at all because of the characters of laser of high concentration in space and time.
Package1X protective goggles, 1X protective box ，1Xglasses cleaning cloth
- High Transmittance Laser Safety Gasses Protect wavelength: 800-1100nm OD 5+ &1060 - 1070nm OD 7+ ;Visible light transmittance 60%
- Used in UV Protection ,invisible laser safety ,Diode Laser Safety, ND:YAG Laser protection
- Application:Dental Lasers, Diodes Laser , nd:yag laser;808nm laser, 980nm laser,1064nm laser
- Europe Certifications:CE Certified;
- Special for ergonomics, harmlessness, comforts, airing and flexibility.Safety glasses with wrap-around design.Flank with unique ventilation and protection system, protect eyes from splashing all-round.
User questions & answers
| Question: | Hola! Estás gafas sirven para depilación láser? Cubre multionda 755nm 808nm 1064nm |
| Answer: | yes,Cubre multionda 755nm 808nm 1064nm.Laser hair removal. |
| Question: | Can it be used for 980nm 300mw Laser diode pointer |
| Answer: | YES |
| Question: | Can I use anti-fog spray on these |
| Answer: | yes |
| Question: | Can it be use for 1064 nm laser |
| Answer: | Yes，Particularly suitable for 1064nm laser. |
Product features
Universal Style
Universal Style: Can be Worn with or without Prescription Glasses
- Safe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light.
- LP-LaserPair offers a range of laser safety glasses that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina.
- Do not place laser beams at eye level.
Professional
Professional eye protection for laser technicians.
The four styles can meet the needs of different groups of people.
To provide you with safe, comfortable and beautiful.
WOWOONE Laser Diode, 30pcs Mini Red Laser Diode Laser, 5V 650nm 5mW, Red Dot Laser Head, with Leads Head Outer Diameter 6mm
WOWOONE
Product description
Small Red Laser Diode Laser
Specification:
Output Power: 5mW
Wavelength: 650nm
Working Voltage: 5V
Operating Current: less than 20 mA
Laser Shape: Dot
Working temperature: -10°C to +40°C.
Housing: Copper
Dimensions: --
Features:
Coated with epoxy
Good reliability
Small volume
High sensitivity
Quick response
Good spectrum characteristic
- ✔️Material: copper plastic.
- ✔️Wide working temperature range: -10°C to +40°C.
- ✔️Laser shape: Dot. Outer diameter: 6 mm. Wavelength: 650nm. Operating voltage: 5V. Total length: 9cm/3.54inch. Operating current: Must be less than 20Ma.
- ✔️Applications: homemade laser pointers, water level meter, ground meter, long range laser monitor remote light control, long range laser wireless communication. Compatible with Arduino, Raspberry Pi and other microcontrollers like.
- ✔️What You Get: 30pcs, High Quality, Bright Beams, Small Red Laser Diode Laser, welcome guide, our 6-month worry-free, and friendly customer service.
WOWOONE 20pcs 5V 650nm 5mW Laser Diode, 5mw Laser Pointer Head, Red Dot Laser Module, Small Mini Laser Pointer Diod, Diy Dot Laser Pointer, Mini Laser Tube with Leads Head Outer Diameter 6mm
Product description
Description:
Output Power: 5mW
Wavelength: 650nm
Working Voltage: 5V
Operating Current: less than 20 mA
Laser Shape: Dot Wide
Range of Working Temperature: The mini diode laser head can work in -10 degree~£«40 degree.
Housing material: High quality Copper
Dimensions: 6.5 x 18mm
Total length: 90mm
Wire connection: Red wire connect to Positive, Blue wire connect to Negative
Application: The red dot laser head widely be used for Level instrument, Ground instrument,
Long distance laser listener remote light control, Long distance laser wireless communication, etc.
Package included:
20PCS 5V 650nm 5mW Red Dot Diode Laser Heads
- This module adopts industrial-grade high-performance design for the best shock resistance and better heat transfer consideration
- Wave length: 650nm. Output Power: 5mW. Working Voltage: 5V. Operating Current: less than 20 mA
- Wide range of wroking temperature: -10°C to +40°C
- Material: The laser head is made of premium copper plastic
- Application: Level instrument, Ground instrument, Long distance laser listener remote light control, Long distance laser wireless communication
Yetaida 5v Laser Diode,650nm 5mw Red Dot Diode Laser Head,Red Laser Diode Suitable For Toy Laser Gun, Funny Cat Playing Pen, Meeting Laser Pointer, Measuring Instrument etc
Product description
【Description】
Output Power: 5mW
Wavelength: 650nm
Working Voltage: 5V
Operating Current: less than 20 mA
Laser Shape: Dot
Working temperature: -10°C to +40°C
Housing material: High quality Copper
Dimensions: 6.5 x 18mm
Wire connection: Red wire connect to Positive, Blue wire connect to Negative
【Package included】
5Pcs 5V Laser diode 650nm 5mW Red Dot Diode Laser Heads
- ✨ 【5 Pcs & Sufficient Quantity】If you only need to replace the bulb of the laser pointer or measuring instrument, instead of requiring a large number of diodes to make some large projects. Then this is your unique choice!
- ✨ 【Wave length&Temperature】Wave length: 650nm.Wide range of wroking temperature: -10°C to +40°C
- ✨ 【Voltage&Current】Working Voltage: 5V Operating Current: less than 20 mA
- ✨ 【Wire connection】Red wire connect to Positive, Blue wire connect to Negative
- ✨ 【Application】Level instrument, Ground instrument, Laser listener remote light control, Laser wireless communication,Toy laser gun, Funny cat playing pen, Meeting laser pointer, Measuring instrument and so on.
Laser Module 405nm Violet Purple Blue Laser"Dot" Diode (Adjust Focus 5mw DC3V-5V)
lights88
Product description
Wavelength :405nm
Power: 5mw
Laser Shape:Dot
Operating Voltage:DC3V-5V
Operating Current: <50mA
Operating temperature: 0 - 30 °C
Beam Effect: 120 dergee Line Effect.
Duty Circle:10 minutes on and 1 seconds off.
Size:14.5mm(D)*45(L) mm
Packing:1PCS
- 405nm 5mw Blue Dot Lazer Diode
- Brass Cap and Black Copper Tube
- Adjustable Foucs Dot based on your Working distance,if laser spot is not a dot,you need to adjust the front cap to focus dot
- ACC Circult Design and Industry Class Laser
- DC 3V ,Wide Voltage Protection up to 5V
User questions & answers
| Question: | what do i need to power a 405mmpurple 20mw laser light |
| Answer: | Just DC3V or DC3.7V battery to light it . Out put voltage is within 5V. |
| Question: | Does it have a protective circuit? Is it okay if I accidentally mistake the +/- wire |
| Answer: | Yes,circuit has protective. Tha't no problem if contact mistake anode or cathode wires. Red is anode(+),black or white wire is cathode(-). |
| Question: | How many are there, two |
| Answer: | No,the price is one piece |
| Question: | is this strong enough to burn through objects |
| Answer: | No it does not. The beam is extremely weak, I would recommend a laser diode with at the very least 100mw to burn anything. I hope this helps. |
Hilitchi 40Pcs Mini Laser Dot Diode Module Head WL Red 650nm 6mm 5V 5mW and 3V 5mW and Light Dependent Resistor LDR Sensor 5 mm GM5539 5539
Hilitchi
Product description
Hilitchi 40Pcs Mini Laser Dot Diode Module Head WL Red 650nm 6mm 5V 5mW And 3V 5mW and Light Dependent Resistor LDR Sensor 5 mm GM5539 5539
Specification:
Output Power: 5mW
Wavelength: 650nm
Working Voltage: 3V
Operating Current: less than 20 mA
Laser Shape: Dot
Working temperature: -10 degree~£«40 degree housing: Copper
Dimensions: 6.5 X 18 mm
Package Included:
10 X 3V Laser Dot Diode Module
Wavelength: 650nm
-----------------------------------
Working Voltage: 5v
Operating Current: must less than 20 mA
Laser Shape: Dot
Working temperature: -10 degree~£«40 degree
Lens and housing: Plastic
Dimensions: 6 X 10 mm
Package Included:
10 X 5V Laser Dot Diode Module
Features:
Coated with epoxy
Good reliability
Small volume
High sensitivity
Quick response
Good spectrum characteristic
Package Included:
20x Photoresistor Optoresistor 5mm 5539
10 X 3V Laser Dot Diode Module
10 X 5V Laser Dot Diode Module
- √Photo Light Sensitive Resistor: Maximum voltage: 150 Volt DC; Spectral peak: 540 nm; Maximum wattage: 100 mw; Light resistance (10 Lux): 50-100 Kohm; Operating temperature: - 30 ~ + 70 degree Celsius.
- √Enough quantity: We have 6mm 5V 5mW And 3V 5mW mini laser diode and each value 10pcs and LDR sensor 5 mm GM5539 5539 20pcs. Enough quantity and adequate specification come in handy for your DIY and hand working projects.
- √Coated with epoxy, our LDR resistors feature good reliability, small volume, high sensitivity, quick response and good spectrum characteristic. Our resistors and mini laser diode are manufactured with string quality standard, they are of good quality.
- √Widely used in our daily life: Photoelectric control, camera auto metering, indoor light control, alarm, industrial control, light control switch, light control lights, electronic toys, etc.
- √【QUALITY AFTER-SALE SERVICE】If you do not satisfy with our products or if you have any questions, please come to us. We would work out satisfactory solution to all your problems. 12 hours quick response. FREE REPLACEMENT or REFUND within 90days.
LaserPair Laser Safety Glasses, Eye Laser Protective Glasses 740 – 1100nm for Nd:yag Laser, Diodes Laser Technician Goggles
Product description
Laser Eye Protection Goggles 740 – 1100nm O.D 5+ V.L.T 40%
780 - 1070nm O.D 7+ V.L.T 40%
Typical laser wavelength：755nm, 808nm, 1064nm Laser Safety Glasses for the laser technician.
L-Rating:740 – 780nm DIR L5
L-Rating:800 – 1070nm DIR L7
Application：Alexandrite, Diode, ND:YAG Laser protection
Wavelength: 740 - 1100 nm. Laser Safety eyewear has a Visible Light Transmission (VLT) of 45% and an Optical Density of 5+.
The VLT value is the percentage of visible light that can travel through the glasses, the higher the value is, the better visual you get.
Designed for the following lasers: Lumenis Lightsheer, Alma Soprano XL,
Alma Harmony XL, Candela GentleLASE, Candela Gentlemax, Syneron eMax,
Mediostar, Cutera Xeo, Cutera Coolglide, Cynosure Apogee Elite, Elite MPX, Sciton, Cynosure Smartlipo, Lumenis M22,
Eyewear comes in a hard case with a lanyard.
- Alexandrite Laser Safety Glasses, Diode Laser Safety, ND:YAG Laser protection 740 – 1100nm O.D 5+ V.L.T 40%
- Typical laser wavelength：755nm, 808nm, 980nm,1064nm
- Alexandrite, Diode, ND:YAG Laser protection
- Certifications:CE certified
- Special for ergonomics, harmlessness, comforts, airing and flexibility.Safety glasses with wrap-around design.Flank with unique ventilation and protection system, protect eyes from splashing all-round.
User questions & answers
| Question: | Can this be worn over small frame less prescription glasses |
| Answer: | Yes, these protective googles will accommodate up to mid framed glasses. |
| Question: | this also appears to block 405nm better than some 400-450nm goggles i have according to a quick test. why not advertised for 200-400nm too |
| Answer: | This has a better blocking effect in the wavelength range of 740 - 1100nm. |
| Question: | Will this work for k-laser class iv lasers |
| Answer: | YES |
| Question: | Hello, can you please provide some recommendations for safety glasses for a dornier d 940 laser ? protection class is l4 en 207:2002 thank you |
| Answer: | Our certification is en207:2017 |
| Question: | How far will the beam project outward until the beam width becomes greater than 10mm |
| Answer: | I've just started using and and the answer is "pretty d... far". At 30 feet it's still perhaps and 1/8" wide (3mm) or so. |
| Question: | what is the line length on the floor if mounted at a height of 2438mm (8ft) from the floor |
| Answer: | The line length would be 16 ft at the distance of 8 ft. Because the emitting angel is more than 90 degrees. |
| Question: | Can this be mounted in a horizontal position 3-6 inches off the ground to project a line at least 6-8 feet outward |
| Answer: | Yes it can, I just did it and it's fine. Here's the thing, the beam fans out as shown in the pic. You have to realize that the collimation is different. I mounted it at about a 45 degree downward angle on my circular saw and it projects fine and, in fact, far beyond 8 feet. |
| Question: | What sort of power source is required |
| Answer: | I believe from 5-10 Volts DC, I have used a 9 volt battery and it works great. |
Product features
Professional
- Professional eye protection for laser technicians.
- The four styles can meet the needs of different groups of people.
- To provide you with safe, comfortable and beautiful.
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