Filter

The optical glass filter is an optical device used to select the desired radiation band. One of the common characteristics of filters is that there is no filter to make the image of celestial bodies brighter, because all filters absorb certain wavelengths, which makes the object darker. Its main feature is that the size can be made quite large. Thin film filters generally transmit longer wavelengths and are mostly used as infrared filters. The latter is to form a certain thickness of high refractive index or low refractive index metal-dielectric-metal film or all-dielectric film alternately on a certain substrate by vacuum coating, forming a low-order, multi-stage tandem solid method Brie-Perot interferometer. The choice of film material, thickness and series connection mode is determined by the required center wavelength and transmission bandwidth λ. Ecoptik (also known as BRD Optical) offers different types of custom optical filters, such as optical comb filter, optical high pass filters, optical low pass filters, colored glass filters, colored glass filters, crystal optics filters, and linear variable filters.

Types Of Filter

Bandpass Filter

Longpass Filter

Neutral Density Filter

Narrow Bandpass Filter

Cut Off Filter

Optical Cylindrical Lens

Optical Dome

Optical Mirror

Optical Prism

Optical Spherical Lens

Reticles

Infrared Optics

Filter

Filter Applications

The optical filter mainly uses the principle of light interference to obtain the transmission effect of the spectrum. The optical filter deposits films with different refractive indexes on the optical substrate through a vacuum coater to achieve different optical effects. When mixed light of multiple wavelengths passes through the filter, interference effects are generated due to the difference in refractive index, resulting in a very high transmittance of light of a specific wavelength while light of other wavelengths is reflected and absorbed.

Filter FAQs

Can You Provide Filters With Customized Wavelength Ranges?Can You Provide Filters With Customized Wavelength Ranges?

Yes, we can. We can customize the design based on the requirements of customers in different bands.

How To Detect The Transmittance Or Reflectance Of The Filter?How To Detect The Transmittance Or Reflectance Of The Filter?

For detection by spectrophotometer, we have two methods, transmission and reflection.

Ecoptikis a professional optical filters ltd, we provide optical component, optical filter film, optical filter design, custom optical lensesand etc. Want to know more? Please contact us.

Other supplier products

	Achromatic Cemented Cylindrical Lens	Achromatic Cemented Cylindrical Lens An achromatic cylindrical lenscan minimize chromatic aberration, so it can be used to focus a single directio...
	Beamsplitter	Beamsplitter Polarizing cube optical beamsplitterssplit randomly polarized beams into two otehogonal, linearly, polarized compoments, S-polarized ...
	Optical Mirror	BRD Optical co. Ltdis one of professional optical component manufacturers. We provide Plano Concave Cylindrical Lens, Plano Convex Cylindrical Lens...
	Dome With Flange	Ecoptik (also known as BRD Optical) can provide the hemisphere, not only a glass dome but also an dome flangeis widely used with all kinds of camer...
	Beamsplitter	Beamsplitter Polarizing laser beam splitter cubesplit randomly polarized beams into two otehogonal, linearly, polarized compoments, S-polarized li...

All supplier products

Same products

	filter element ZNGL02011001 for Vietnam power system	Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD	filter element ZNGL02011001 for Vietnam power system The company has a large flow, high discharge...
	FILTER ELEMENT FAX-63X10 for Indonesia	Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD	FILTER ELEMENT FAX-63X10 for Indonesia Thermal Power YOYIK is a large number of steam turbine / b...
	RO filter element HFU640UY1000J for Vietnam Power Station	Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD	"RO filter element HFU640UY1000J for Vietnam Power StationIs YOYIK for the use of units of the po...
	RO filter element HFU640UY045J China turbine parts	Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD	"RO filter element HFU640UY045J China turbine partsDeyang Dongfang Yoyik is a trade production co...
	"Top shaft oil inlet filter element XLY-007-25 Steam turbine parts	Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD	"Top shaft oil inlet filter element XLY-007-25 Steam turbine partsYoyik is specialized in manufac...