The most common sources of illumination for flashlights：
Incandescent lamps, which heat the filament to a certain temperature and emit light, mainly in the following categories:
1, ordinary vacuum incandescent bulb Features: low cost, easy to get, low light efficiency
2, filled with xenon bulbs Features: slightly higher cost, light efficiency is slightly higher than ordinary vacuum incandescent bulbs
3, halogen bulb Features: more common, suitable for home lighting, table lamps, etc., the cost is slightly higher than ordinary vacuum incandescent bulbs
4, filled with xenon bulbs Features: high light efficiency, high cost, generally used in high-end flashlights
LED: Light-emitting diode, using semiconductor as the led flashlight source of the illuminant, mainly has the following types:
According to the size can be divided into: 3mm, 5mm, 10mm, high power, etc.
According to the color can be divided into: red, green, blue, white, yellow, etc.
According to the principle of illumination, it can be divided into direct illumination and use of fluorescent materials.
According to the manufacturer can be divided into: the United States ls led, South Korea Seoul series, South Korea cree series, Osram series, Japan's Nichia series, etc.
According to the luminous power, it can be divided into: small power tube, 1w, 3w, 5w, 10w, etc.
According to the core can be divided into: single core (such as small power tubes produced by each factory and 1w, 3w, etc.), multi-core (such as p7, mc-e, ls-5w, etc.)
According to the color temperature can be divided into: warm and cool
HID: High-pressure gas discharge lamp, used for car headlights and outdoor search, etc. where the volume requirements are not strict. Its classification is mainly based on power and manufacturer.
Divided by power: 10w, 20w, 35w, 60w, etc.
By manufacturer: OSRAM, Shell, etc.
According to the color temperature, 4500k, 7000k, etc.
According to the discharge form: short arc and long arc
laser:
Divided by color: red, blue, green, yellow, purple, infrared, etc.
According to the power is divided into: 5mw or less, 5mw, 10mw, 50mw, 100mw, 150mw, 200mw, 250mw, 600mw, etc.
Other luminous sources:
For example, a light source having a long-term illuminating effect using a fluorescent material and a trace amount of a radioactive element
473nm blue laser
532/556nm green laser
671/635nm red laser
What kind of laser is a laser that meets the wavelength of a certain color light, and if there are wavelengths to distinguish it, there are many kinds of lasers.
Laser refers to the amplification of light generated by stimulated radiation and is a high quality light source.
Laser features:
1. Good directionality
2. Good monochrome
3. Energy concentration
4. Good coherence
What is a laser?
Laser (LASER) is a light source invented in the 1960s. LASER is an acronym for "Scattered Radiated Amplification" in English. There are many types of lasers, ranging from a few football fields to as small as a grain of rice or salt. Gas lasers include helium-neon lasers and argon lasers; solid-state lasers have ruby lasers; semiconductor lasers have laser diodes, such as those found in CD players, DVD players, and CD-ROMs. Each laser has its own unique method of generating laser light.
Lasers have many characteristics: First, the laser is monochromatic, or single-frequency. Some lasers can simultaneously produce lasers of different frequencies, but these lasers are isolated from each other and are also separated when used. Second, the laser is coherent light. The characteristic of coherent light is that all its light waves are synchronized, and the whole beam is like a "wave train". Again, the laser is highly concentrated, meaning that it takes a long distance to disperse or converge.
Incandescent lamps, which heat the filament to a certain temperature and emit light, mainly in the following categories:
1, ordinary vacuum incandescent bulb Features: low cost, easy to get, low light efficiency
2, filled with xenon bulbs Features: slightly higher cost, light efficiency is slightly higher than ordinary vacuum incandescent bulbs
3, halogen bulb Features: more common, suitable for home lighting, table lamps, etc., the cost is slightly higher than ordinary vacuum incandescent bulbs
4, filled with xenon bulbs Features: high light efficiency, high cost, generally used in high-end flashlights
LED: Light-emitting diode, using semiconductor as the led flashlight source of the illuminant, mainly has the following types:
According to the size can be divided into: 3mm, 5mm, 10mm, high power, etc.
According to the color can be divided into: red, green, blue, white, yellow, etc.
According to the principle of illumination, it can be divided into direct illumination and use of fluorescent materials.
According to the manufacturer can be divided into: the United States ls led, South Korea Seoul series, South Korea cree series, Osram series, Japan's Nichia series, etc.
According to the luminous power, it can be divided into: small power tube, 1w, 3w, 5w, 10w, etc.
According to the core can be divided into: single core (such as small power tubes produced by each factory and 1w, 3w, etc.), multi-core (such as p7, mc-e, ls-5w, etc.)
According to the color temperature can be divided into: warm and cool
HID: High-pressure gas discharge lamp, used for car headlights and outdoor search, etc. where the volume requirements are not strict. Its classification is mainly based on power and manufacturer.
Divided by power: 10w, 20w, 35w, 60w, etc.
By manufacturer: OSRAM, Shell, etc.
According to the color temperature, 4500k, 7000k, etc.
According to the discharge form: short arc and long arc
laser:
Divided by color: red, blue, green, yellow, purple, infrared, etc.
According to the power is divided into: 5mw or less, 5mw, 10mw, 50mw, 100mw, 150mw, 200mw, 250mw, 600mw, etc.
Other luminous sources:
For example, a light source having a long-term illuminating effect using a fluorescent material and a trace amount of a radioactive element
473nm blue laser
532/556nm green laser
671/635nm red laser
What kind of laser is a laser that meets the wavelength of a certain color light, and if there are wavelengths to distinguish it, there are many kinds of lasers.
Laser refers to the amplification of light generated by stimulated radiation and is a high quality light source.
Laser features:
1. Good directionality
2. Good monochrome
3. Energy concentration
4. Good coherence
What is a laser?
Laser (LASER) is a light source invented in the 1960s. LASER is an acronym for "Scattered Radiated Amplification" in English. There are many types of lasers, ranging from a few football fields to as small as a grain of rice or salt. Gas lasers include helium-neon lasers and argon lasers; solid-state lasers have ruby lasers; semiconductor lasers have laser diodes, such as those found in CD players, DVD players, and CD-ROMs. Each laser has its own unique method of generating laser light.
Lasers have many characteristics: First, the laser is monochromatic, or single-frequency. Some lasers can simultaneously produce lasers of different frequencies, but these lasers are isolated from each other and are also separated when used. Second, the laser is coherent light. The characteristic of coherent light is that all its light waves are synchronized, and the whole beam is like a "wave train". Again, the laser is highly concentrated, meaning that it takes a long distance to disperse or converge.
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