CN213182099U - Gun aiming red film optical filter - Google Patents
Gun aiming red film optical filter Download PDFInfo
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- CN213182099U CN213182099U CN202021157784.6U CN202021157784U CN213182099U CN 213182099 U CN213182099 U CN 213182099U CN 202021157784 U CN202021157784 U CN 202021157784U CN 213182099 U CN213182099 U CN 213182099U
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Abstract
The utility model relates to a rifle sight red membrane light filter includes first lens and the second lens that overlap each other and the size and the shape of peripheral edge profile are unanimous, a side of first lens and second lens be the convex surface, the another side is the concave surface, convex surface one side of first lens and concave surface one side of second lens are glued mutually, the radius of curvature of the cemented surface of first lens and second lens equals and press from both sides and be equipped with the filtering membrane between the cemented surface; the filter film has a transmittance greater than or equal to 95% in the spectral range of 400-620nm, a transmittance greater than or equal to 92% in the spectral range of 700-950nm, and a reflectance greater than or equal to 90% at the wavelength of 650 nm. Utility model's rifle is aimed red membrane light filter has plated visible light and near-infrared antireflection coating between two lens, when guaranteeing that the equal height of light in visible light and near-infrared within range is passed through, dwindles near 650 nm's reflection band to between 20nm, can restore the original colour of sight, consequently can not only distinguish the colour of sight, can pass through the actual color of objective reduction sight moreover.
Description
Technical Field
The utility model relates to a gun sight red membrane light filter mainly uses on the objective of red some gun sight of reflective.
Background
The reflex sighting telescope is also commonly called red point sighting telescope, because the sighting mark of the sighting telescope is usually a red or bright orange light point, the optical system of the sighting telescope is different from the principle of the telescopic sighting telescope, and the sighting telescope generally has no amplifying system and no inverting system. The principle of the method is that a concave mirror is plated with a plurality of layers of reflective films, light rays emitted by an illumination system pass through a reticle, then form round points on the concave mirror and reflect the round points to enter human eyes as parallel light, meanwhile, the human eyes see a target through the concave mirror, and aiming is finished when an aiming mark is overlapped with the target. A high precision reflective sighting telescope whose concave mirror curvature is very fine because it must ensure that the sighting mark is at the impact point even if the shooter's eye is not directly opposite the sighting telescope's axis. And because it allows the eye not to be aligned with the sighting telescope axis, the sighting response speed is fast, and the sighting telescope is widely used in military firearms and even HUDs (head-up displays) of fighters in various countries. In addition, the light may be generated by an LED lamp, or may be provided by natural light or very low-level radioactive emissions (semi-permanently effective).
For the early concave reflector, only a red high-reflection film is adopted, the reflection bandwidth exceeds more than one hundred nanometers, and other colors except 650nm light reflection are also reflected, so that the imaging color is lacked, and the original appearance of the aiming object cannot be truly presented. With the development of the technology, the emission type sighting telescope with a simple concave mirror cannot meet the requirement of a shooter. While aiming at the red spot, the shooter hopes not only to distinguish the color of the aiming object, but also to restore the actual color of the aiming object through the objective lens. Therefore, it is urgent to provide a lens which can realize the reflection of red light of 650nm and can make the sighting object free from color deficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a red membrane filter is aimed at to rifle, the utility model discloses a red membrane filter is aimed at to rifle can guarantee in the equal high-transparency of light in visible light and near-infrared within range, dwindles the reflection band near 650nm to between 20nm to can restore the original colour of sight, consequently can not only distinguish the colour of sight, can restore the actual color of sight through objective moreover.
The utility model discloses technical scheme (one) as follows:
a gun-sight red-film filter includes a first lens and a second lens overlapping each other and having a peripheral edge contour of a size and a shape that are uniform,
one side surface of the first lens and one side surface of the second lens are both convex surfaces, the other side surface of the first lens is both concave surfaces, one side of the convex surface of the first lens is glued with one side of the concave surface of the second lens, the curvature radiuses of the glued surfaces of the first lens and the second lens are equal, and a filter film is clamped between the glued surfaces;
furthermore, the gun aiming red film optical filter is formed by cutting and processing a first circular lens and a second circular lens which are mutually glued and overlapped and are provided with filter films in a clamped mode in a gluing surface according to the design requirements of the peripheral edge profiles of the first lens and the second lens, the peripheral edge profiles of the first circular lens and the second circular lens are circular with the same size, and the two side faces of the first circular lens and the second circular lens are respectively consistent with the curvature radius of the two side faces of the first lens and the second lens; the first processing side surface of the gun-sight red film filter after cutting and processing and close to the central axis of the first circular lens and the second circular lens is parallel to the central axis, and the distance between the first processing side surface and the central axis is 0.59-0.61 mm;
the filter film has a transmittance greater than or equal to 95% in the spectral range of 400-620nm, a transmittance greater than or equal to 92% in the spectral range of 700-950nm, and a reflectance greater than or equal to 90% at the wavelength of 650 nm.
Further, the first circular lens and the second circular lens are made of glass materials with refractive indexes of 1.46-1.92, such as K9, ZF1, BAK2, LAK7, ZF52 and ZLAF 68.
Furthermore, the curvature radius of the concave surface of the first circular lens is 63.12-63.18, the curvature radius of the convex surface of the first circular lens is 90.15-90.21 mm, and the curvature radius of the convex surface of the second circular lens is 65.07-65.13 mm;
the center thickness of the first circular lens is 1.9-2.1 mm, and the center thickness of the second circular lens is 3.5-3.7 mm.
Further, the filter film is formed by stacking 35 layers of films in sequence, and the 35 layers of films sequentially comprise, from the first lens to the second lens: first Al2O3Film layer, first SiO2Film layer, second Al2O3Film layer, second SiO2Film layer, third Al2O3Film layer, third SiO2Film layer, fourth Al2O3Film layer, fourth SiO2Film layer, fifth Al2O3Film layer, fifth SiO2Film layer, sixth Al2O3Film layer, sixth SiO2Film layer, seventh Al2O3Film layer, seventh SiO2Film layer, eighth Al2O3Film layer, eighth SiO2Film layer, ninth Al2O3Film layer, ninth SiO2Film layer, tenth Al2O3Film layer, tenth SiO2Film layer, eleventh Al2O3Film layer, eleventh SiO2Film layer, twelfth Al2O3Film layer, twelfth SiO2Film layer, thirteenth Al2O3Film layer, thirteenth SiO2Film layer, fourteenth Al2O3Film layer, fourteenth SiO2Film layer, fifteenth Al2O3Film layer, fifteenth SiO2Film layer, sixteenth Al2O3Film layer, sixteenth SiO2Film layer, seventeenth Al2O3Film layer, seventeenth SiO2Film layer and eighteenth Al2O3And (5) film layer.
Further, the central wavelength of the filter film is 650nm, and the first Al is2O3The film layer has an optical thickness of 1/4 being 0.9592-1.0192 and the first SiO layer2The film layer 1/4 has an optical thickness of 0.9801-1.0401 and a second Al2O3The film layer has an optical thickness of 1/4 being 0.9376-0.9976 and a second SiO layer2The film layer has an optical thickness of 1/4 being 1.3038-1.3638 and a third Al2O3The film layer has an optical thickness of 1/4 being 0.3750-0.7350 and a third SiO2Film layer1/4 optical thickness of 1.3874-1.4474, fourth Al2O3The film layer is 1/4 optical thickness is 0.6511-0.7111, and the fourth SiO layer2The optical thickness of 1/4 of the film layer is 1.323-1.383, and the fifth Al2O3The film layer is 1/4 optical thickness is 0.6419-0.7019, fifth SiO2The film layer is 1/4 optical thickness is 1.2954-1.3554, sixth Al2O3The film layer is 1/4 optical thickness is 0.6365-0.6965, sixth SiO2The film layer 1/4 has an optical thickness of 1.2488-1.3088 and a seventh Al2O3The film layer is 1/4 optical thickness is 0.7418-0.8018, seventh SiO2The film layer 1/4 has an optical thickness of 1.1964-1.2564 and an eighth Al2O3The film layer is 1/4 optical thickness is 0.7633-0.8233, eighth SiO2The film layer is 1/4 optical thickness is 1.174-1.234, ninth Al2O3The film layer has an optical thickness of 1/4 being 0.7615-0.8215 and a ninth SiO2The film layer is 1/4 optical thickness is 1.1859-1.2459, tenth Al2O3The film layer has an optical thickness of 1/4 being 0.7615-0.8215 and a tenth SiO2The film layer is 1/4 optical thickness is 1.174-1.234, and the eleventh Al2O3The film layer is 1/4 optical thickness is 0.7633-0.8233, eleventh SiO2The film layer has an optical thickness of 1/4 being 1.1965-1.2565 and a twelfth Al2O3The film layer has an optical thickness of 1/4 being 0.7419-0.8019 and a twelfth SiO2The film layer is 1/4 optical thickness is 1.2487 ~ 1.3087, thirteenth Al2O3The film layer has an optical thickness of 1/4 being 0.6365-0.6965 and a thirteenth SiO2The film layer has an optical thickness of 1/4 being 1.2954-1.3554 and a fourteenth Al2O3The film layer has an optical thickness of 1/4 being 0.6418-0.7018 and a fourteenth SiO2The optical thickness of 1/4 of the film layer is 1.323-1.383, and the optical thickness of the fifteenth Al2O3The film layer is 1/4 with an optical thickness of 0.6513-0.7113 and a fifteenth SiO2The film layer is 1/4 with an optical thickness of 1.3875-1.4575 and a sixteenth Al2O3The optical thickness of 1/4 film is 0.375-0.435, sixteenth SiO2The film layer has 1/4 optical thickness of 1.3037-1.3637 and seventeenth Al2O3The film layer has an optical thickness of 1/4 being 0.9377-0.9977 and seventeenth SiO2The 1/4 optical thickness of the film layer is 0.971-1.031, and the eighteenth Al2O3The film layer 1/4 has an optical thickness of 0.9601-1.0201.
Further, the filter film is formed by stacking 35 layers of films in sequence, and the 35 layers of films sequentially comprise, from the first lens to the second lens: the film comprises a first M film layer, a first Ta2O film layer, a second M film layer, a second Ta2O film layer, a third M film layer, a third Ta2O film layer, a fourth M film layer, a fourth Ta2O film layer, a fifth M film layer, a fifth Ta2O film layer, a sixth M film layer, a sixth Ta2O film layer, a seventh M film layer, a seventh Ta2O film layer, an eighth M film layer, an eighth Ta2O film layer, a ninth M film layer, a ninth Ta2O film layer, a tenth M film layer, a tenth Ta2O film layer, an eleventh M film layer, an eleventh Ta2O film layer, a twelfth M film layer, a twelfth Ta2O film layer, a thirteenth Ta2O film layer, a fourteenth M film layer, a fourteenth Ta2O film layer, a fifteenth M2O film layer, a fifteenth Ta2O film layer, a sixteenth Ta2O film layer, a seventeenth Ta2O film layer and an eighteenth M film layer.
Furthermore, the center wavelength of the filter film is 650nm, the optical thickness of 1/4 of the first M2 film layer is 0.6355-0.6955, and the first Ta layer is2O5The film layer 1/4 has an optical thickness of 0.2545-0.3145, the second M2 film layer 1/4 has an optical thickness of 1.1772-1.2372, and the second Ta layer2O5The film layer 1/4 has an optical thickness of 1.5262-1.5862, the third M2 film layer 1/4 has an optical thickness of 0.194-0.234, and the third Ta layer2O5The optical thickness of 1/4 of the film layer is 1.2316-1.2916, the optical thickness of 1/4 of the fourth M2 film layer is 0.3485-0.4085, and the optical thickness of the fourth Ta film layer is2O5The film layer 1/4 has an optical thickness of 1.6123-1.6723, the fifth M2 film layer 1/4 has an optical thickness of 0.3037-0.3637, and the fifth Ta film layer2O5The film layer 1/4 has an optical thickness of 1.611-1.671, the sixth M2 film layer 1/4 has an optical thickness of 0.3348-0.3948, and the sixth Ta2O5The film layer 1/4 has an optical thickness of 1.6248-1.6848, the seventh M2 film layer 1/4 has an optical thickness of 0.3514-0.4114, and the seventh Ta layer2O5The optical thickness of the 1/4 film layer is 1.5809-1.6409, the optical thickness of the 1/4 film layer of the eighth M2 film layer is 0.3812-0.4412, and the eighth T film layera2O5The film layer 1/4 has an optical thickness of 1.5757-1.6357, the ninth M2 film layer 1/4 has an optical thickness of 0.4095-0.4695, and the ninth Ta2O5The film layer 1/4 has an optical thickness of 1.5598-1.6098, the tenth M2 film layer 1/4 has an optical thickness of 0.3857-0.4457, and the tenth Ta2O5The film layer 1/4 has an optical thickness of 1.5821-1.6421, the eleventh M2 film layer 1/4 has an optical thickness of 0.39-0.43, and the eleventh Ta2O5The film layer 1/4 has an optical thickness of 1.5689-1.6289, the twelfth M2 film layer 1/4 has an optical thickness of 0.3877-0.4477, and the twelfth Ta layer2O5The film layer 1/4 has an optical thickness of 1.5889-1.6489, the thirteenth M2 film layer 1/4 has an optical thickness of 0.3561-0.4161, and the thirteenth Ta layer2O5The film layer 1/4 has an optical thickness of 1.5695-1.6295, the fourteenth M2 film layer 1/4 has an optical thickness of 0.2621-0.3021, and the fourteenth Ta layer2O5The film layer 1/4 has an optical thickness of 1.3502-1.4102, the fifteenth M2 film layer 1/4 has an optical thickness of 1.1743-1.2343, and the fifteenth Ta2O5The film layer 1/4 has an optical thickness of 2.7427-2.8027, the sixteenth M2 film layer 1/4 has an optical thickness of 1.4563-1.5163, and the sixteenth Ta2O5The film layer 1/4 has an optical thickness of 0.302-0.342, the seventeenth M2 film layer 1/4 has an optical thickness of 1.6122-1.6722, and the seventeenth Ta2O5The film layer 1/4 has an optical thickness of 0.3601-0.4001, and the eighteenth M2 film layer 1/4 has an optical thickness of 2.2169-2.2769.
Furthermore, visible light and near-infrared antireflection films are plated on the concave surface of the first lens and the convex surface of the second lens.
Scheme two)
A method for preparing a gun-aiming red film optical filter comprises the steps of preparing a first circular lens and a second circular lens, wherein the outlines of the peripheral edges of the first circular lens and the second circular lens are circular, plating a filter coating on the convex surface of the first circular lens, gluing the convex surface of the first circular lens plated with the filter coating with the concave surface of the second circular lens, half-cutting the first circular lens and the second circular lens which are glued into two semicircular bodies along a certain diameter direction perpendicular to a central shaft, polishing the cutting surface of each semicircular body to a first processing side surface parallel to the central shafts of the first circular lens and the second circular lens, and enabling the distance between the first processing side surface and the central shaft to be 0.59-0.61 mm; and then cutting the peripheral edges of other parts of the ground semi-finished product into the required peripheral edge shape of the gun-sight red-film optical filter according to the peripheral edge profile design requirements of the first lens and the second lens.
Further, after the final cutting is finished, plating visible light and near-infrared antireflection films on the concave surface of the first lens and the convex surface of the second lens; the gluing method of the convex surface of the first circular lens and the concave surface of the second circular lens is to glue the convex surface of the first circular lens and the concave surface of the second circular lens by UV glue under an ultraviolet lamp.
The index Ravg < 0.5% @ 400-.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) utility model's rifle is aimed red membrane light filter has plated visible light and near-infrared antireflection coating between two lens, when guaranteeing that the equal height of light in visible light and near-infrared within range is passed through, dwindles near 650 nm's reflection band to between 20nm, can restore the original colour of sight, consequently can not only distinguish the colour of sight, can pass through the actual color of objective reduction sight moreover.
(2) When the lens is used, a light source is arranged on the inner side of the concentric spherical surface of the lens, and a point of red light emitted by the light source is reflected into eyes after passing through the negative filter film. When the light source and the target light source are in line and enter the eye, the aiming is formed.
(3) The plated filter film is clamped between the two first circular lenses and the second circular lens, and the filter film in the middle can be effectively protected.
(4) The filter can solve the problem that a smaller high-reflection band is generated by using a 650nm frequency tripling design but a high-reflection band appears in a 400-450nm waveband of frequency quadrupling, and meanwhile, the usage amount of a film material is only 1/3 of frequency tripling.
(5) The design of medium and high refractive index film material matching or medium and low refractive index matching is adopted, and the problem that the medium and high refractive index matching bandwidth is ultra wide is solved.
Drawings
Fig. 1 is a schematic diagram illustrating the gluing of the first circular lens, the filter and the second circular lens before the uncut processing of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic diagram of the gun sight red film filter of the present invention.
Fig. 4 is a left side view of fig. 3.
Fig. 5 is a schematic diagram of a spectral curve of a filter film according to embodiment 1 of the present invention.
Fig. 6 is a spectral curve of the filter film according to embodiment 2 of the present invention.
Fig. 7 is a spectral curve of the filter according to embodiment 3 of the present invention.
Fig. 8 is a spectral curve of the filter according to embodiment 4 of the present invention.
Fig. 9 is a spectral curve of the filter in embodiment 5 of the present invention.
Fig. 10 is a spectral curve of the filter in embodiment 6 of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings 1-4 of the specification.
Example 1
As shown in fig. 1 to 4, a gun sight red film filter includes a first lens 1 and a second lens 2 overlapping each other and having a peripheral edge contour of a uniform size and shape,
one side surface of the first lens 1 and the other side surface of the second lens 2 are both convex surfaces, one side of the convex surface of the first lens 1 is glued with one side of the concave surface of the second lens 2, the curvature radiuses of the glued surfaces of the first lens 1 and the second lens 2 are equal, and a light filtering film 3 is clamped between the glued surfaces;
the gun aiming red film optical filter is formed by cutting and processing a first circular lens and a second circular lens which are mutually glued and overlapped and are provided with a filter film 3 in a clamped mode in a gluing surface according to the design requirements of the peripheral edge profiles of the first lens 1 and the second lens 2, the peripheral edge profiles of the first circular lens and the second circular lens are circular with the same size, and the two side surfaces of the first circular lens and the second circular lens are respectively consistent with the curvature radiuses of the two side surfaces of the first lens 1 and the second lens 2; a first processing side surface 4 of the gun-sight red film filter after cutting and processing and close to the central axis of the first circular lens and the central axis of the second circular lens is parallel to the central axis, and the distance between the first processing side surface 4 and the central axis is 0.59-0.61 mm;
the filter film 3 has a transmittance greater than or equal to 95% in the spectral range of 400-620nm, a transmittance greater than or equal to 92% in the spectral range of 700-950nm, and a reflectance greater than or equal to 90% at the wavelength of 650 nm. The corresponding spectral indexes are as follows: tavg > 95% @ 400-.
The first circular lens and the second circular lens described in this embodiment are made of K9 glass material.
The curvature radius of the concave surface of the first lens 1 is 63.12, the curvature radius of the convex surface of the first lens 1 is 90.15, the curvature radius of the concave surface of the second lens 2 is equal to that of the convex surface of the first lens 1, and the curvature radius of the convex surface is 65.07;
the central thickness of the first lens 1 is 1.9mm, and the central thickness of the second lens 1 is 3.5 mm.
The filter film 3 described in this embodiment is formed by sequentially stacking 35 layers of films, where the 35 layers of films sequentially include, from the first lens 1 to the second lens 2: first Al2O3Film layer, first SiO2Film layer, second Al2O3Film layer, second SiO2Film layer, third Al2O3Film layer, third SiO2Film layer, fourth Al2O3Film layer, fourth SiO2Film layer, fifth Al2O3Film layer, fifth SiO2Film layer, sixth Al2O3Film layer, sixth SiO2Film layer, seventh Al2O3Film layer, seventh SiO2Film layer, eighth Al2O3Film layer, eighth SiO2Film layer, ninth Al2O3Film layer, ninth SiO2Film layer, tenth Al2O3Film layer, tenth SiO2Film layer, eleventh Al2O3Film layer, eleventh SiO2Film layer, twelfth Al2O3Film layer, twelfth SiO2Film layer, thirteenth Al2O3Film layer, thirteenth SiO2Film layer, fourteenth Al2O3Film layer, fourteenth SiO2Film layer, fifteenth Al2O3Film layer, fifteenth SiO2Film layer, sixteenth Al2O3Film layer, sixteenth SiO2Film layer, seventeenth Al2O3Film layer, seventeenth SiO2Film layer and eighteenth Al2O3And (5) film layer.
The central wavelength of the filter film is 650nm, and the first Al2O31/4 optical thickness of film layer 0.9902, first SiO21/4 optical thickness of film layer 1.0101, second Al2O31/4 optical thickness of film was 0.9676, second SiO21/4 optical thickness of film was 1.3338, third Al2O3The film layer 1/4 optical thickness was 0.4050, third SiO21/4 optical thickness of film was 1.4174, fourth Al2O3The film layer 1/4 optical thickness was 0.6811, fourth SiO21/4 optical thickness of film layer 1.353, fifth Al2O3The film layer 1/4 optical thickness was 0.6719, fifth SiO21/4 optical thickness of film was 1.3254, sixth Al2O3The film layer 1/4 optical thickness was 0.6665, sixth SiO21/4 optical thickness of film was 1.2788, seventh Al2O3The film layer 1/4 optical thickness is 0.7718, seventh SiO21/4 optical thickness of film was 1.2264, eighth Al2O3The optical thickness of 1/4 film is 0.7933 and the eighth SiO21/4 optical thickness of film layer 1.204, ninth Al2O3The optical thickness of 1/4 film is 0.7915 and the ninth SiO film2The film layer 1/4 optical thickness was 1.2159 th Al2O3The film layer 1/4 optical thickness is 0.7915, tenth SiO21/4 optical thickness of film layer 1.204, eleventh Al2O3The film layer 1/4 optical thickness was 0.7933, tenthSiO 22The film layer 1/4 optical thickness was 1.2265, twelfth Al2O3The film layer 1/4 optical thickness is 0.7719, twelfth SiO2The film layer 1/4 optical thickness was 1.2787, thirteenth Al2O3The film layer 1/4 has an optical thickness of 0.6665 and a thirteenth SiO2The film layer 1/4 optical thickness is 1.3254, fourteenth Al2O3The optical thickness of 1/4 of the film layer is 0.6718, fourteenth SiO21/4 optical thickness of film layer 1.353, fifteenth Al2O3The film layer 1/4 has an optical thickness of 0.6813 and a fifteenth SiO2The film layer 1/4 optical thickness was 1.4175, sixteenth Al2O31/4 optical thickness of film layer is 0.405, sixteenth SiO2The film layer 1/4 optical thickness is 1.3337, seventeenth Al2O3The film layer has 1/4 optical thickness 0.9677, seventeenth SiO21/4 optical thickness of film layer 1.01, eighteenth Al2O3The film layer 1/4 optical thickness was 0.9901. As shown in fig. 5, the spectral curve of the filter of the present embodiment.
And visible light and near-infrared antireflection films are plated on the concave surface of the first lens 1 and the convex surface of the second lens 2.
A method for preparing a gun aiming red film optical filter comprises preparing a first circular lens and a second circular lens with the same outline size, plating a filter film 3 on the convex surface of the first circular lens, bonding the convex surface of the first circular lens and the concave surface of the second circular lens with UV (ultraviolet) glue under an ultraviolet lamp, cutting the bonded first circular lens and second circular lens into two parts along the radial direction, polishing until the distance between the modified surface and the center is 0.5, cutting into the required shape according to requirements,
the transmittance of the filter film 3 in the spectral range of 400-620nm is more than 95%, the transmittance in the spectral range of 700-950nm is more than 92%, and the reflectivity at the wavelength of 650nm is more than 90%.
The method also comprises plating visible light and near-infrared antireflection films on the concave surface of the first lens 1 and the convex surface of the second lens 2. The index Ravg < 0.5% @ 400-.
The filter film of the embodiment adopts a film system design of matching 35 layers of low-refractive-index film materials, has a reflection band of less than 30nm at 650nm of red light, and has a negative filter film with high transmittance at visible light and near infrared. The red film with the design has the reflectivity higher than 90%, does not sacrifice visible light and near infrared spectrum, does not influence imaging color cast, and can effectively reduce the color of an object. The corresponding spectral indexes are as follows: tavg > 95% @ 400-.
The dotted line in fig. 4 is the outer contour line of the first circular lens, the filter, and the second circular lens when fig. 1 is not cut.
Example 2
Different from the above-described embodiments is the first Al of the present embodiment2O31/4 optical thickness of film layer 0.9602, first SiO21/4 optical thickness of film layer 1.0401, second Al2O31/4 optical thickness of film was 0.9376, second SiO21/4 optical thickness of film was 1.3638, third Al2O3The film layer 1/4 optical thickness was 0.3750, third SiO21/4 optical thickness of film was 1.4474, fourth Al2O3The film layer 1/4 optical thickness was 0.6511, fourth SiO21/4 optical thickness of film layer 1.383, fifth Al2O3The film layer 1/4 optical thickness was 0.6419, fifth SiO21/4 optical thickness of film was 1.3654, sixth Al2O3The film layer 1/4 optical thickness was 0.6365, sixth SiO21/4 optical thickness of film was 1.3088, seventh Al2O3The film layer 1/4 optical thickness is 0.7418, seventh SiO21/4 optical thickness of film was 1.2564, eighth Al2O3The optical thickness of 1/4 film is 0.7633 and the eighth SiO21/4 optical thickness of film layer 1.234, ninth Al2O3The film layer had an optical thickness of 1/4 of 0.7615, ninth SiO2The film layer 1/4 optical thickness was 1.2459 th Al2O3The film layer had an optical thickness of 1/4 of 0.7615, tenth SiO21/4 optical thickness of film layer 1.234, eleventh Al2O3The film layer 1/4 optical thickness was 0.7633, eleventh SiO2The film layer 1/4 optical thickness was 1.2565, twelfth Al2O3The film layer 1/4 optical thickness is 0.7419, twelfth SiO2The film layer 1/4 optical thickness was 1.3087, thirteenth Al2O3The film layer 1/4 has an optical thickness of 0.6365 and a thirteenth SiO2The film layer 1/4 optical thickness is 1.3554, fourteenth Al2O3The optical thickness of 1/4 of the film layer is 0.6418, fourteenth SiO21/4 optical thickness of film layer 1.383, fifteenth Al2O3The film layer 1/4 has an optical thickness of 0.6513 and a fifteenth SiO2The film layer 1/4 optical thickness was 1.4475, sixteenth Al2O3The film layer had an optical thickness of 1/4 of 0.375, sixteenth SiO2The film layer 1/4 optical thickness is 1.3637, seventeenth Al2O3The film layer has 1/4 optical thickness 0.9377, seventeenth SiO21/4 optical thickness of film layer 1.04, eighteenth Al2O3The film layer 1/4 optical thickness was 0.9601. As shown in fig. 6, the spectral curve of the filter of the present embodiment.
Example 3
Different from the above-described embodiments is the first Al of the present embodiment2O31/4 optical thickness of film layer 1.0202, first SiO21/4 optical thickness of film was 0.9801, second Al2O31/4 optical thickness of film was 0.9976, second SiO21/4 optical thickness of film was 1.3038, third Al2O3The film layer 1/4 optical thickness was 0.4350, third SiO21/4 optical thickness of film was 1.3874, fourth Al2O3The film layer 1/4 optical thickness was 0.7111, fourth SiO21/4 optical thickness of film layer 1.323, fifth Al2O3The film layer 1/4 optical thickness was 0.7019, fifth SiO21/4 optical thickness of film was 1.2954, sixth Al2O3The film layer 1/4 optical thickness was 0.6965, sixth SiO21/4 optical thickness of film was 1.2488, seventh Al2O3The film layer 1/4 optical thickness is 0.8018, seventh SiO21/4 optical thickness of film was 1.1964, eighth Al2O3The optical thickness of 1/4 film is 0.8233 and the eighth SiO2The film layer 1/4 optical thickness was 1.174, ninth Al2O3The optical thickness of 1/4 film is 0.8215 and the ninth SiO film2The film layer 1/4 optical thickness was 1.1859 th Al2O3The film layer 1/4 optical thickness is 0.8215, tenth SiO21/4 optical thickness of film layer 1.174, eleventh Al2O3The film layer 1/4 optical thickness was 0.8233, eleventh SiO2The film layer 1/4 optical thickness was 1.1965, twelfth Al2O3The film layer 1/4 optical thickness is 0.8019, twelfth SiO2The film layer 1/4 optical thickness was 1.2487, thirteenth Al2O3The film layer 1/4 has an optical thickness of 0.6965 and a thirteenth SiO2The film layer 1/4 optical thickness is 1.2954, fourteenth Al2O3The optical thickness of 1/4 of the film layer is 0.7018, fourteenth SiO21/4 optical thickness of film layer 1.323, fifteenth Al2O3The film layer 1/4 has an optical thickness of 0.7113 and a fifteenth SiO2The film layer 1/4 optical thickness was 1.3875, sixteenth Al2O3The film layer had an optical thickness of 1/4 of 0.435A, sixteenth SiO2The film layer 1/4 optical thickness is 1.3037, seventeenth Al2O3The film layer has 1/4 optical thickness 0.9977, seventeenth SiO21/4 optical thickness of film layer is 0.971, eighteenth Al2O3The film layer 1/4 optical thickness was 1.0201. As shown in fig. 7, the spectral curve of the filter of the present embodiment.
Example 4
Unlike the above embodiment, the filter 3 is formed by stacking 35 layers of films in order, and the 35 layers of films are, in order from the first lens 1 to the second lens 2: the film comprises a first M film layer, a first Ta2O film layer, a second M film layer, a second Ta2O film layer, a third M film layer, a third Ta2O film layer, a fourth M film layer, a fourth Ta2O film layer, a fifth M film layer, a fifth Ta2O film layer, a sixth M film layer, a sixth Ta2O film layer, a seventh M film layer, a seventh Ta2O film layer, an eighth M film layer, an eighth Ta2O film layer, a ninth M film layer, a ninth Ta2O film layer, a tenth M film layer, a tenth Ta2O film layer, an eleventh M film layer, an eleventh Ta2O film layer, a twelfth M film layer, a twelfth Ta2O film layer, a thirteenth Ta2O film layer, a fourteenth M film layer, a fourteenth Ta2O film layer, a fifteenth M2O film layer, a fifteenth Ta2O film layer, a sixteenth Ta2O film layer, a seventeenth Ta2O film layer and an eighteenth M film layer.
1/4 optical thickness of 0.6455 of the first M2 film layer, 1/4 optical thickness of 0.2845 of the first Ta2O5 film layer, 1/4 optical thickness of 1.2072 of the second M2 film layer, 1/4 optical thickness of 1.5562 of the second Ta2O5 film layer, 1/4 optical thickness of 0.214 of the third M2 film layer, 1/4 optical thickness of 1/4 of the third Ta2O5 film layer, 1/4 optical thickness of 1/4 of the fourth M1/4 film layer, 1/4 optical thickness of 1/4 of the fourth Ta2O 1/4 film layer, 1/4 optical thickness of 1/4 of the fifth M1/4 film layer, 1/4 optical thickness of 1.641 of the fifth Ta2O 1/4 film layer, 1/4 optical thickness of 1/4 of the sixth Ta2O 1/4 film layer, 1/4 optical thickness of 1/4 of the seventh M1/4 film layer, 1/4 optical thickness of 0.3814 of the seventh M1/4 film layer, 1/4 optical thickness of the eighth 1/4 of 1/4 film layer, the optical thickness of the eighth Ta2O film layer is 0.4395, the optical thickness of the ninth Ta2O film layer is 0.41, the optical thickness of the eleventh Ta2O film layer is 0.41, the optical thickness of the twelfth Ta2O film layer is 1.2043, the optical thickness of the thirteenth Ta2O film layer is 1.2043, the optical thickness of the fourteenth M film layer is 1.2043, the optical thickness of 1/4 of the fifteenth Ta2O5 film layer is 2.7727, the optical thickness of 1/4 of the sixteenth M2 film layer is 1.4863, the optical thickness of 1/4 of the sixteenth Ta2O5 film layer is 0.322, the optical thickness of 1/4 of the seventeenth M2 film layer is 1.6422, the optical thickness of 1/4 of the seventeenth Ta2O5 film layer is 0.3801, and the optical thickness of 1/4 of the eighteenth M2 film layer is 2.2469. As shown in fig. 8, the spectral curve of the filter of the present embodiment.
Example 5
Unlike embodiment 4, in this embodiment, the optical thickness of 1/4 of the first M2 film layer is 0.6755, the optical thickness of 1/4 of the first Ta2O5 film layer is 0.2545, the optical thickness of 1/4 of the second M2 film layer is 1.2372, the optical thickness of 1/4 of the second Ta2O5 film layer is 1.5262, the optical thickness of 1/4 of the third M2 film layer is 0.244, the optical thickness of 1/4 of the third Ta2O5 film layer is 1.2316, the optical thickness of 1/4 of the fourth M2 film layer is 0.4085, the optical thickness of 1/4 of the fourth Ta2O5 film layer is 1.6123, the optical thickness of 1/4 of the fifth M2 film layer is 0.3637, the optical thickness of 1/4 of the fifth Ta2O5 film layer is 1.611, the optical thickness of 1/4 of the sixth M2 film layer is 0.3948, the optical thickness of 5 of the sixth Ta2O5 film layer is 5, the optical thickness of seventh M5 is 5, and the optical thickness of 5 is 5, 0.4412 is an optical thickness of 1/4 of the eighth M2 film layer, 1.5757 is an optical thickness of 1/4 of the eighth Ta2O5 film layer, 0.4695 is an optical thickness of 1/4 of the ninth M2 film layer, 1.5598 is an optical thickness of 1/4 of the ninth Ta2O5 film layer, 0.4457 is an optical thickness of 1/4 of the tenth M2 film layer, 1.5821 is an optical thickness of 1/4 of the tenth Ta2O5 film layer, 0.44 is an optical thickness of 1/4 of the eleventh M2 film layer, 1/4 is an optical thickness of 1/4 of the eleventh Ta2O 1/4 film layer, 0.4477 is an optical thickness of 1/4 of the twelfth M1/4 film layer, 1/4 is an optical thickness of 1/4 of the thirteenth Ta2O 1/4 film layer, 1/4 is an optical thickness of 1/4 of the fourteenth M1/4 film layer, 1/4 is an optical thickness of 1/4 of the fourteenth Ta2O 1/4 film layer, 1/4 is an optical thickness of 1/4, the optical thickness of 1/4 of the fifteenth M2 film layer is 1.2343, the optical thickness of 1/4 of the fifteenth Ta2O5 film layer is 2.7427, the optical thickness of 1/4 of the sixteenth M2 film layer is 1.5163, the optical thickness of 1/4 of the sixteenth Ta2O5 film layer is 0.352, the optical thickness of 1/4 of the seventeenth M2 film layer is 1.6122, the optical thickness of 1/4 of the seventeenth Ta2O5 film layer is 0.3501, and the optical thickness of 1/4 of the eighteenth M2 film layer is 2.2769. As shown in fig. 9, the spectral curve of the filter of the present embodiment.
Example 6
Unlike embodiment 4, in this embodiment, the 1/4 optical thickness of the first M2 film layer is 0.6155, the 1/4 optical thickness of the first Ta2O5 film layer is 0.3145, the 1/4 optical thickness of the second M2 film layer is 1.1772, the 1/4 optical thickness of the second Ta2O5 film layer is 1.5862, the 1/4 optical thickness of the third M2 film layer is 0.184, the 1/4 optical thickness of the third Ta2O5 film layer is 1.2916, the 1/4 optical thickness of the fourth M2 film layer is 0.3485, the 0.3485 optical thickness of the fourth Ta2O 0.3485 film layer is 0.3485, the 0.3485 optical thickness of the fifth M0.3485 film layer is 0.3485, the 0.3485 optical thickness of the fifth Ta2O 0.3485 film layer is 1.671, the 0.3485 optical thickness of the sixth M0.3485 film layer is 0.3485, the 0.3485 optical thickness of the sixth Ta2O 0.3485 film layer is 0.3485, the seventh M0.3485 optical thickness is 0.3485, and the seventh M0.3485 optical thickness is 0.3485, 0.3812 is an optical thickness of 1/4 of the eighth M2 film layer, 1.6357 is an optical thickness of 1/4 of the eighth Ta2O5 film layer, 0.4095 is an optical thickness of 1/4 of the ninth M2 film layer, 1.6198 is an optical thickness of 1/4 of the ninth Ta2O5 film layer, 0.3857 is an optical thickness of 1/4 of the tenth M2 film layer, 1.6421 is an optical thickness of 1/4 of the tenth Ta2O5 film layer, 0.38 is an optical thickness of 1/4 of the eleventh M2 film layer, 1/4 is an optical thickness of 1/4 of the eleventh Ta2O 1/4 film layer, 1/4 is an optical thickness of 1/4 of the twelfth M1/4 film layer, 1/4 is an optical thickness of 1/4 of the twelfth Ta2O 1/4 film layer, 1/4 is an optical thickness of 1/4 of the thirteenth M1/4 film layer, 1/4 is an optical thickness of 1/4 of the fourteenth Ta2O 1/4 film layer, 1/4 is an optical thickness of 0.2521, 1/4 is an optical thickness of the fourteenth Ta 1/4 of 1/4, the optical thickness of 1/4 of the fifteenth M2 film layer is 1.1743, the optical thickness of 1/4 of the fifteenth Ta2O5 film layer is 2.8027, the optical thickness of 1/4 of the sixteenth M2 film layer is 1.4563, the optical thickness of 1/4 of the sixteenth Ta2O5 film layer is 0.352, the optical thickness of 1/4 of the seventeenth M2 film layer is 1.6122, the optical thickness of 1/4 of the seventeenth Ta2O5 film layer is 0.4101, and the optical thickness of 1/4 of the eighteenth M2 film layer is 2.2169. As shown in fig. 10, the spectral curve of the filter of the present embodiment.
The above-mentioned embodiments are only explained in detail by using two commonly used glass substrate materials as technical solutions, the present invention is not limited to the above-mentioned embodiments, and any modification or replacement according to the principles of the present invention should be within the protection scope of the present invention.
Claims (9)
1. The utility model provides a red membrane filter is aimed at to rifle which characterized in that: the gun-sight red-film filter comprises a first lens (1) and a second lens (2) which are overlapped with each other and have the same size and shape of the outline of the peripheral edge,
one side surface of each of the first lens (1) and the second lens (2) is a convex surface, the other side surface of each of the first lens and the second lens is a concave surface, one side of the convex surface of the first lens (1) is glued with one side of the concave surface of the second lens (2), the curvature radiuses of the glued surfaces of the first lens (1) and the second lens (2) are equal, and a light filter film (3) is clamped between the glued surfaces;
the filter film (3) has a transmittance greater than or equal to 95% in the 400-620nm spectral range, a transmittance greater than or equal to 92% in the 700-950nm spectral range, and a reflectance greater than or equal to 90% at the 650nm wavelength.
2. The red film filter for gun sight of claim 1, wherein: the gun aiming red film optical filter is formed by cutting and processing a first circular lens and a second circular lens which are mutually glued and overlapped and are provided with a filter film (3) in a clamping manner in a gluing surface according to the design requirements of the peripheral edge profiles of the first lens (1) and the second lens (2), the peripheral edge profiles of the first circular lens and the second circular lens are circular with the same size, and the two side surfaces of the first circular lens and the second circular lens are respectively consistent with the curvature radius of the two side surfaces of the first lens (1) and the second lens (2); and a first processing side surface (4) of the gun-sight red film filter after cutting and processing and close to the central axis of the first circular lens and the central axis of the second circular lens is parallel to the central axis, and the distance between the first processing side surface (4) and the central axis is 0.59-0.61 mm.
3. The red film filter for gun sight of claim 2, wherein: the first round lens and the second round lens are made of glass materials with refractive indexes of 1.46-1.92.
4. The red film filter for gun sight of claim 3, wherein:
the curvature radius of the concave surface of the first circular lens is 63.12-63.18, the curvature radius of the convex surface of the first circular lens is 90.15-90.21 mm, and the curvature radius of the convex surface of the second circular lens is 65.07-65.13 mm;
the center thickness of the first circular lens is 1.9-2.1 mm, and the center thickness of the second circular lens is 3.5-3.7 mm.
5. The red film filter for gun sight of claim 1, wherein: the filter film (3) is formed by sequentially stacking 35 layers of films, and the 35 layers of films sequentially comprise the following components from the first lens (1) to the second lens (2): first Al2O3Film layer, first SiO2Film layer, second Al2O3Film layer, second SiO2Film layer, third Al2O3Film layer, third SiO2Film layer, fourth Al2O3Film layer, fourth SiO2Film layer, fifth Al2O3Film layer, fifth SiO2Film layer, sixth Al2O3Film layer, sixth SiO2Film layer, seventh Al2O3Film layer, seventh SiO2Film layer, eighth Al2O3Film layer, eighth SiO2Film layer, ninth Al2O3Film layer, ninth SiO2Film layer, tenth Al2O3Film layer, tenth SiO2Film layer, eleventh Al2O3Film layer, eleventh SiO2Film layer, twelfth Al2O3Film layer, twelfth SiO2Film layer, thirteenth Al2O3Film layer, thirteenth SiO2Film layer, fourteenth Al2O3Film layer, fourteenth SiO2Film layer, fifteenth Al2O3Film layer, fifteenth SiO2Film layer, sixteenth Al2O3Film layer, sixteenth SiO2Film layer, seventeenth Al2O3Film layer, seventeenth SiO2Film layer and eighteenth Al2O3And (5) film layer.
6. The red film filter for gun sight of claim 5, wherein: the central wavelength of the filter film (3) is 650 nm.
7. According to the rightThe gun sight red film filter of claim 1, wherein: the filter film (3) is formed by sequentially stacking 35 layers of films, and the 35 layers of films sequentially comprise the following components from the first lens (1) to the second lens (2): a first M2 film layer, a first Ta2O5Film layer, second M2 film layer, second Ta2O5Film, third M2 film, and third Ta2O5Film, fourth M2 film, fourth Ta2O5Film, fifth M2 film, fifth Ta2O5Film, sixth M2 film, sixth Ta2O5Film layer, seventh M2 film layer, seventh Ta2O5Film, eighth M2 film, eighth Ta2O5Film, ninth M2 film, ninth Ta2O5Film, tenth M2 film, tenth Ta2O5Film, eleventh M2 film, eleventh Ta2O5Film, twelfth M2 film, twelfth Ta2O5Film layer, thirteenth M2 film layer, thirteenth Ta2O5Film layer, fourteenth M2 film layer, fourteenth Ta2O5Film layer, fifteenth M2 film layer, fifteenth Ta2O5Film layer, sixteenth M2 film layer, sixteenth Ta2O5Film layer, seventeenth M2 film layer, seventeenth Ta2O5Film layer and eighteenth M2 film layer.
8. The red film filter for gun sight of claim 7, wherein: the central wavelength of the filter film is 650 nm.
9. The red film filter for gun sight of claim 1, wherein: the concave surface of the first lens (1) and the convex surface of the second lens (2) are plated with visible light and near-infrared antireflection films.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021157784.6U CN213182099U (en) | 2020-06-19 | 2020-06-19 | Gun aiming red film optical filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596391A (en) * | 2020-06-19 | 2020-08-28 | 三明福特科光电有限公司 | Gun-aiming red-film optical filter and preparation method thereof |
| CN116643412A (en) * | 2023-05-24 | 2023-08-25 | 福州百晶光电有限公司 | Ultra-low light loss fluorescence spectrum detection synthetic prism and manufacturing method thereof |
-
2020
- 2020-06-19 CN CN202021157784.6U patent/CN213182099U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596391A (en) * | 2020-06-19 | 2020-08-28 | 三明福特科光电有限公司 | Gun-aiming red-film optical filter and preparation method thereof |
| CN111596391B (en) * | 2020-06-19 | 2023-07-11 | 三明福特科光电有限公司 | Gun aiming red film filter and preparation method thereof |
| CN116643412A (en) * | 2023-05-24 | 2023-08-25 | 福州百晶光电有限公司 | Ultra-low light loss fluorescence spectrum detection synthetic prism and manufacturing method thereof |
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