Compared with traditional color optical glass filter, our company produces the shortwave communication and long wave pass filter with cut-off steepness big background, high transmittance and optical density of advantage, and with the traditional method of optical glass is completely different, when the incident Angle changes (from 0 degrees to the large Angle rotation), characteristics of the cutoff wavelength will move to the short-wave direction. This function can be used in the aspect of system fine-tuning, wavelength and be able to get what you need.

Material: optical glass (K9, BK7, B270, D263T, quartz glass, colored glass, float glass, etc can be chosen according to the requirements of impassability)

The basic parameters:

Surface finish

American standard 60/40

Membrane layer fastness

A. Through the low temperature experiment test and salt spray test, damp and hot, membrane layer of durable good performance conforms to the standard GB2423.17, GB2423.1, GB2085.2-89, us military standard MIL - STD - 810

B. 3 m tape paste to 10 n force is perpendicular to the direction of the film to tear tape, lift 3 times, film without loss, in line with the us military standard MIL - C - 48497.

C. 90% relative humidity, temperature of 65 ℃, 250 hours, 40 ℃ temperature 70 ℃ ~ -, cycle test for 10 hours

Cleaning method

Use of propyl alcohol or isopropyl alcohol and lens wiping cloth to clean.

Areas of application:

Beauty equipment, police multiband testing instruments, strong light flashlight, stage lighting shade, face recognition attendance instrument, optical instrument, fiber optic lighting, metal halide lamp heat insulation piece, cold light source reveals ark.

Products indicators:

Long wave pass filter parameters
The product name	Through the band	transmittance	Center wavelength	By the band	As the depth
LP420	425-1200nm	≥94%	420±3nm	350-405nm	0.1<%
LP425	430-1200nm	≥94%	425±3nm	350-420nm	0.1<%
LP450	460-1200nm	≥94%	450±3nm	350-430nm	0.1<%
LP470	475-1200nm	≥94%	470±3nm	350-450nm	0.1<%
LP500	510-1200nm	≥94%	500±3nm	350-480nm	0.1<%
LP550	560-1200nm	≥94%	550±3nm	350-540nm	0.1<%
LP620	635-1200nm	≥94%	620±3nm	350-610nm	0.1<%
LP650	660-1200nm	≥94%	650±3nm	400-640nm	0.1<%
LP680	685-1200nm	≥94%	680±3nm	400-670nm	0.1<%
LP780	785-1200nm	≥90%	780±3nm	400-750nm	0.1<%
LP820	825-1200nm	≥90%	820±3nm	400-800nm	0.1<%
LP840	845-1200nm	≥90%	840±3nm	400-810nm	0.1<%
LP900	910-1200nm	≥90%	900±3nm	400-880nm	0.1<%

无

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