380nm 400nm 450nm 460nm LED For Dental Curing Light

In dental instruments, UV (ultraviolet) and blue light LEDs are commonly used for specific treatment and diagnostic purposes. Here are their typical applications:

✅ Applications of Blue Light LEDs (Wavelength: 420–480nm):

Dental Curing Lights

The most common use. Blue light activates photoinitiators (e.g., Camphorquinone) in resin-based materials to initiate polymerization and harden the material.

Used for: cavity fillings, making dental trays, veneers, etc.

Teeth Whitening Devices

Blue light is used in combination with whitening agents (e.g., hydrogen peroxide) to accelerate the whitening process.

Dental Examination Lights / Headlamps

High color rendering blue or cool white LEDs improve visibility in the oral cavity, helping dentists observe fine details more clearly.

✅ Applications of UV (Violet) LEDs (Wavelength: 365–405nm):

Plaque Detection

When exposed to UV light, dental plaque emits fluorescence (usually red or orange) due to bacterial metabolites such as phosphate.

Used in devices for plaque visualization and distribution analysis.

Crack and Caries Detection

Microcracks or early-stage cavities may exhibit different fluorescence responses under UV light, aiding in early diagnosis.

Sterilization (less common)

Specific wavelengths of UVA or UVC have germicidal effects, though this application is less common in dental instruments and more typical in cleaning or experimental devices.

📌 Summary Table:

380nm 400nm 450nm 460nm LED for Dental Curing Light Pictures

 

 

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380nm 400nm 450nm 460nm LED for Dental Curing Light dimensions

 

 

380nm 400nm 450nm 460nm LED for Dental Curing Light Specs

 

Parameter	Symbol	Conditions	Emitting Color	Values			Units
				Min	Avg.	Max
Forward Voltage	VF	IF=700mA	P38	3.20	--	3.60	V
			P40	3.20	--	3.60
			B45	3.20	--	3.60
			B46	3.20	--	3.60
Luminous Flux	Φv	IF=700mA	P38	1000	--	1200	mW
			P40	1000	--	1200
			B45	30	--	50	lm
			B46	40	--	60
Peak wavelength	λp	IF=700mA	P38	380	--	390	nm
			P40	400	--	410
Dominant wavelength	λd	IF=700mA	B45	450	--	460	nm
			B46	460	--	470
Reverse Current	IR	VR=5V	−−	−−	−−	10	μ A
Viewing Angle	2Θ1/2	IF=700mA	−−	−−	60	−−	Deg
Thermal Resistance Junction To Board	RΘJ-B	IF=700mA	−−	--	5	--	°C/W

380nm 400nm 450nm 460nm LED for Dental Curing Light Applications

 

380nm 400nm 450nm 460nm LED for Dental Curing Light pplications

 

380nm (Near UV)

Supports fluorescence detection (e.g. for caries or cracks), but not efficient for curing resins.

May assist in photodiagnostics, not commonly used for curing.

400nm (Violet)

Borderline UV/blue; can slightly activate some photoinitiators, but curing efficiency is still low.

Sometimes used in multispectral curing lights to broaden photoinitiator activation.

450nm (Blue)

Near peak absorption of Camphorquinone, the most common photoinitiator.

Highly effective and widely used for resin curing.

460nm (Blue)

Similar to 450nm, also efficient for resin polymerization.

Often used in broad-spectrum curing lights for better penetration and surface curing.

Plaque Detection

Dental Curing Lights

Dental Examination Lights

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Shenzhen Guangmai Electronics Co., Ltd., established in 2009 with a registered capital of 30 million RMB, is an enterprise specializing in the manufacturing of semiconductor packaging devices. Its subsidiaries include Shenzhen Guangmai Technology Co., Ltd., Guangmai Technology (Hong Kong) Co., Ltd., and Shenzhen OKAY Lighting Co., Ltd., forming a powerful corporate group. Guangmai Electronics is a national high-tech enterprise and a specialized and new enterprise in Shenzhen. It has been ranked among the top 100 in China's LED industry and has been awarded honors such as Shenzhen Standard Application Demonstration Unit and Guangdong Integrity Demonstration Enterprise.

 

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