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·Megapixel Low Distortion Board Lens is going to be developed.[2012-06-22]

·Angular Shift of Optical Thin Films, problem of Angle of Incidence to an optical filter[2012-05-09]

·850nm Heat-resistant Interference Filters to solve the problem of Temperature-drift of spectrum[2012-05-09]

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Lenoptec Co., Ltd
Jincheng Industrial Area B Zone 5#-3F, Chixing RD, Fuzhou 350012, CN
Tel: 86-591-88862350
Fax: 86-591-87921293
Email: info@lenoptec.com

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Bandpass Filters (26 Total) TOP OF PAGE


	650+940nm Narrow Double Bandpass Filter High transmission at the CWL, from 80% ~ 95% according to the bandwidth. Precise point of the CWL, with Ion source assisted coating method to reach a steady coatings. Singlet substrate with coatings.


	850nm Day Night Filter or 850nm IR Filter 850nm Day Night Filter is a common filter used for day night imaging systems, usually for CCD sensor, which is sensitive for a wide spectrum for image forming.


	940nm Day Night Filter One filter for day and night surveillance by blocking most UV light and NIR light. FWHM at the centre 940nm can be chosen, such as +/-15nm, +/-20nm or +/-30nm.


	490+660nm Double Bandpass Filter Double Bandpass filters are designed with 2 area transmission, while all other spectrums blocked or reflected. Different areas could be designed for vary equipments or applications


	650nm UV-IR Cutoff Filter, heat blocker Cutoff all UV and NIR light but only transmit visible light to for the clearer color image. With AR coatings, Transmission can reach Tave>95%


	680nm UV-IR Cutoff Filter, heat blocker With AR coatings, Transmission can reach Tave>96%. Heat blocker to resist high temperature at no more than 350 C-degree


	Heat Resistance Filter, Heat Blocker NIR cutoff from 720-2500nm, reduce the most heat from NIR light. UV light could be blocked or transmit. Effective to block the major NIR heat from sunlight and halogen lamps.


	635nm UV-IR Cut Filter, Heat Blocker UV-IR cut off and visible red light cutoff Applied for industrial camera or optical system, mobile camera, and digital microscope etc.


	710nm UV-IR Cut Filter, Heat Blocker Full visible light transmission, especially the visible red color light, so more temperature blocked. All UV-IR light has been cutoff, suitable for color image camera use.


	440nm +/-20nm Visible Narrow Bandpass Filter, Blue Filter Singlet filter with coatings. Only allow the visible blue range spectrum transmit, while deeply cut off the other spectrums, also called Blue Narrow Bandpass Filter or Blue interference filter.


	Laser Scanner Filter, 650+/-25nm Narrow Bandpass Filter Designed for 640nm, 647nm and special 650nm laser scanner or laser semiconductor use. Singlet piece, not bonded, can be bonded with other filters for some special applications.


	Laser Scanner Filter, 632+/-15nm Narrow Bandpass Filter Specially designed for special 632nm laser scanner or laser semiconductor use. Singlet piece, not bonded, can be bonded with other filters for some special applications.


	Visible Light Color Filters, Interference Filters Different CWL with customized transmission bandwidth for the visible color light beam Pure light color acquired while reflect other color light from sunlight or other white light.


	Bandpass Filters in Visible Light Spectrum Different CWL and bandwidth can be customized for vary application or requirements. Singlet or bonded with other filters


	650nm Laser Scanner Filter, High Transmission 650+/-20nm Bandpass Filters New Developed 650nm FWHM=40nm filters, with high transmission of T>95% @ CWL=650+/-5nm area. Perfectly used for laser devices.


	850nm High Temperature Resistance Narrow Bandpass Filter-No Temperature Drift No temperature drift of the spectrum curve when the temperature rise, specially designed for narrow bandpass filter to work under high temperature environment.


	Narrow Bandpass Filter, Interference Filter Narrow Bandpass Filter is a kind of filter, which only transmit a small bandwidth of spectrum, but block all others, used for vary different applications which only required a certain range of light.


	1064nm Narrow Bandpass Laser Filter, Interference Filter 1064nm Narrow Bandpass Filter, only transmit the small bandwidth spectrum as 1064+/-10nm, or 1064+/-15nm, while all other light has been blocked or reflected.


	940nm Narrow Bandpass Filter, Interference Filter compatibly used with 940nm LED light or laser light source, which the image sensor only requires a small bandwidth of the 940nm NIR light to for the black and white image. Vary applications or equipments require different bandwidth, from +/-5nm, +/-15nm to +/-30nm.


	850nm Narrow Bandpass Filter, Interference Filter Compatibly used with 850nm LED light or laser light source, which the image sensor only requires a small bandwidth of the 850nm NIR light to for the black and white image. The 850nm bandpass filter is commonly used in NIR imaging system to eliminate the influence of surrounding background light.


	880nm Narrow Bandpass Filter, Interference Filter Different bandwidth designed for vary application. Ion source assisted coating to reach a heat resistance.


	632+/-10nm Narrow Laser Interference Filter 632+/-10nm (FWHM=20nm) very narrow laser interference filter, designed with Tave>75% @ 628~636nm area, with sharp slope curve. This filter has deeply cutoff all other spectrums unneeded to get a most pure laser light.


	780+/-20nm Narrow Bandpass Laser Interference Filter 780nm Narrow Bandpass Interference Filter, only transmit the small bandwidth as 780+/-20nm (FWHM=40nm) spectrum, while all other light has been blocked or reflected. Specially designed for 766, 780, 785 or 790nm LED or Laser light source.


	808nm Interference Filter, 808nm Laser bandpass Filter 808nm FWHM=24nm Laser Interference Filter is specially designed for optical devices equiped with 808nm semiconductor light source, with hight transmission at T>85%.


	635+/-15nm Laser Semiconductor Filters, Laser Interference Filters 635nm Laser Filter, designed for the applications of 635nm laser semiconductor devices. With higher transmission and sharp curve, allows the sensor detect more require light beam, while block other noise light as more as possible.


	650+/-15nm Narrow Bandpass Filter, 650nm Interference Filter Used for 650nm LED light source. The more narrow bandwidth is designed to reduce more unneeded light for sensitive sensors.

Longpass Filters (8 Total) TOP OF PAGE


	Cold Mirror, IR Longpass Filter High transmission of IR light, and high reflection of visible light. Very sharp slope of the curve, T=50%~T=90% @ 10nm


	800NM and 825nm IR Longpass Filter, cold mirrors High transmission of IR light, and high reflection of visible light, with coating layers on single glass substrate. Cutoff all visible light before 780nm to reduce the image noise for image systems.


	380nm, 395nm UV Longpass Filter High blocked rate in UV spectrum, VIS AR coatings available to reach T>98% @ 400-700nm Transparent filter, can be bonded with other filters for vary application.


	Golden Yellow Color UV blocking Glass-UV Filters Yellow color or said more like golden, color glass, absorbing the UV light while transmit visible and NIR light. Thickness at least 2mm to ensure the deep blocked rate


	NIR Acrylic Filters Acrylics, a kind of plastic made of PMMA Light weight, high NIR light transmission and deep visible light blocked


	Dark IR Glass Filter No coatings on the surfaces, perfectly used for protective glass of NIR imaging systems. Different start points of transmission for various applications.


	NIR Red Color Glass Filters Different start points of transmission for vary application, including but not limited to, biomedical scan systems, NIR video surveillance cameras and other NIR optical imaging systems.


	Mid IR and Far IR AR coatings AR coatings on the IR glass substrate for reach a high transmission of a specific Mid IR or Far IR range. Bandpass coatings are also available on the special IR materials.

Shortpass Filters (7 Total) TOP OF PAGE


	UV Cold Mirrors, UV Filters High transmission in UV range and visible range has been reflected to reduce the image noise because of VIS light. Coatings made on UV fused silica for the heat-resistance and steady work.


	680nm IR Cutoff Filter High transmission in VIS range, and deeply blocked rate in NIR spectrum; with single or multi-layer AR coatings, the transmission can reach 97% or above.


	Heat Blocking Filters-UV IR Cutoff Coatings Commonly used for color cameras or other heat-blocking systems. With UV-IR cutoff coatings on heat-resistance crystal substrate, it is perfect as a heat blocking filter.


	Shortpass Filters, 800nm, 830nm and 850nm Full visible light spectrum transmit, from 400-780nm, Tave>90%


	635nm IR Cutoff Filter short pass filter cutting off spectrum after 635nm, to reduce the unneeded part of red light


	650nm UV-IR Cutoff Filters High transmission in VIS range, and deep blocked rate in NIR spectrum; with single or multi-layer AR coatings, the transmission can reach 97% or above. Widely used for color optical systems which only requires the visible light to form image.


	850nm Day/Night Filter or 850nm IR Filter 850nm Day Night Filter is a common filter used for day night imaging systems, usually for CCD sensor, which is sensitive for a wide spectrum for image forming.

Dichroic Filters (3 Total) TOP OF PAGE


	RGB Dichroic Filter Pure color by the précised spectrums control Multi all-dielectric coatings under high vacuum coatings


	GB Dichroic Filter-Reflect red but transmit green and blue This model of GB Dichroic filter is designed to block red light and NIR light but only transmit green and blue light in visible area, by blocking the spectrum after 600nm. Some advanced features have been improved, such as high transmission T>97% @ 450-550nm and deep blocking rate R>98% @ 600-700nm, pure color to avoid stray light.


	7 color Dichroic Filter Pure color by the précised spectrums control Multi all-dielectric coatings under high vacuum coatings

AR coatings (3 Total) TOP OF PAGE


	AR Coatings Anti-reflection (AR) coatings are designed to reduce the reflection rate on the surfaces of optical glass or filters, in the hope to reach a higher transmission.


	Cover Glass with Broadband Coating for Surveillance Camera Broadband AR Coating for Day/Night video surveillance camera, used as protective lens in front of the camera lens, can increase the transmission by at least 6%, improving the image quality for day/night surveillance.


	Broadband AR Coating for 400-700nm R<0.5% Broadband AR Coating will reduce the veiling glare and virtual image generated by the secondary reflection, to increase the clearness of image.

Reflective Coatings (3 Total) TOP OF PAGE


	Broadband Dielectric Mirror 400-700nm, R≥97.5% Reflective Dielectric Mirror, is a mirror with dielectric coating on the base of substrate. It can produce the high reflection at a specific range of spectrum.


	High Reflective Dielectric Mirror High Reflective Dielectric Mirror, is a mirror with dielectric coating on the base of substrade. It can produce the high reflection at a specific range of spectrum.


	RGB Aluminum plus dielectric High reflective Coatings, Aluminum Mirrors This type of RGB Aluminum mirrors is with aluminum coatings on the optical plane glass, then secondary with dielectric coatings on the filter to make the Reflection reach 97% or higher, specially for Red, Green or Blue spectrum areas.

Color Glass Filters (2 Total) TOP OF PAGE


	Neutral Density Filters, ND Filters ND Filters, is a type of grey or dark grey glass filter, which function is to reduce the transmission rate of the optical intensity in full spectrum, with no change to color balance.


	Polarizing Filters, CPL Filters Circular Polarizing Filters, usually called CPL Filters, is a light grey bonded glass filter, which is a very helpful component for image systems with functions to remove the polarizing lights from non-metallic sufaces, such as to recover the natrual color contrast, removing reflecting lights from water, glass or green leaves.

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