CN111474617A - Far infrared short wave cut-off film for mould pressing aspheric lens - Google Patents
Far infrared short wave cut-off film for mould pressing aspheric lens Download PDFInfo
- Publication number
- CN111474617A CN111474617A CN202010339972.9A CN202010339972A CN111474617A CN 111474617 A CN111474617 A CN 111474617A CN 202010339972 A CN202010339972 A CN 202010339972A CN 111474617 A CN111474617 A CN 111474617A
- Authority
- CN
- China
- Prior art keywords
- parts
- optical surface
- film
- germanium
- far infrared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 5
- 230000003287 optical effect Effects 0.000 claims abstract description 48
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 25
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000005083 Zinc sulfide Substances 0.000 claims abstract description 24
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims abstract description 24
- XASAPYQVQBKMIN-UHFFFAOYSA-K ytterbium(iii) fluoride Chemical compound F[Yb](F)F XASAPYQVQBKMIN-UHFFFAOYSA-K 0.000 claims abstract description 24
- 229910052984 zinc sulfide Inorganic materials 0.000 claims abstract description 24
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000010408 film Substances 0.000 claims description 40
- 238000007747 plating Methods 0.000 claims description 15
- 238000007723 die pressing method Methods 0.000 claims description 14
- 239000007888 film coating Substances 0.000 claims description 10
- 238000009501 film coating Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000012788 optical film Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000001771 vacuum deposition Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 3
- 239000005387 chalcogenide glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention relates to a far infrared short wave cut-off film for a mould pressing aspheric lens, which comprises a first optical surface and a second optical surface; the first optical surface comprises the following components in parts by weight: 1-3 parts of yttrium oxide; 65-75 parts of ytterbium fluoride; 5-15 parts of zinc sulfide; 15-25 parts of germanium; the second optical surface comprises the following components in parts by weight: 1-3 parts of yttrium oxide; 50-60 parts of ytterbium fluoride; 30-40 parts of zinc sulfide; 10-20 parts of germanium. The invention has high transmittance (7.5-14um) and high cut-off rate (1-6.5 um).
Description
Technical Field
The invention relates to the technical field of lenses, in particular to a far infrared short wave cut-off film for a mould pressing aspheric lens.
Background
The infrared lens is mainly applied to monitoring lenses, temperature measurement products, night vision products and other products, is mainly used in a far infrared wavelength range, and is coated on the surface of the lens to obtain better performance. Generally, the main processing methods of the infrared lens include cold processing and die pressing, and the die pressing processing by using chalcogenide glass has greater advantages for the lens with smaller size. The optical antireflection film is plated on the surface of the lens to meet the use requirement. However, some products require higher or special requirements to cut off wavelengths other than the wavelength used. For lenses using wavelengths in the far infrared, thicker coatings are required to meet this requirement.
But compared with infrared substrates such as germanium, silicon and the like, the chalcogenide glass has the characteristics of softer material, low melting point and easy influence by environmental conditions, so that the realization difficulty of the far infrared short-wave cut-off film with thicker film layer is higher, and the film is easy to release.
Disclosure of Invention
The invention aims to provide a far infrared short-wave cut-off film for a die-pressing aspheric lens.
The invention realizes the purpose through the following technical scheme: a far infrared short-wave cut film for a molded aspherical lens includes a first optical surface and a second optical surface;
the first optical surface comprises the following components in parts by weight:
1-3 parts of yttrium oxide;
65-75 parts of ytterbium fluoride;
5-15 parts of zinc sulfide;
15-25 parts of germanium;
the second optical surface comprises the following components in parts by weight:
1-3 parts of yttrium oxide;
50-60 parts of ytterbium fluoride;
30-40 parts of zinc sulfide;
10-20 parts of germanium.
Further, the first optical surface comprises the following components in parts by weight:
1 part of yttrium oxide;
65 parts of ytterbium fluoride;
15 parts of zinc sulfide;
25 parts of germanium;
the second optical surface comprises the following components in parts by weight:
3 parts of yttrium oxide;
60 parts of ytterbium fluoride;
30 parts of zinc sulfide;
10 parts of germanium.
Further, the first optical surface comprises the following components in parts by weight:
2 parts of yttrium oxide;
70 parts of ytterbium fluoride;
10 parts of zinc sulfide;
20 parts of germanium;
the second optical surface comprises the following components in parts by weight:
2 parts of yttrium oxide;
55 parts of ytterbium fluoride;
35 parts of zinc sulfide;
and 15 parts of germanium.
Further, the first optical surface comprises the following components in parts by weight:
3 parts of yttrium oxide;
75 parts of ytterbium fluoride;
5 parts of zinc sulfide;
15 parts of germanium;
the second optical surface comprises the following components in parts by weight:
1 part of yttrium oxide;
50 parts of ytterbium fluoride;
40 parts of zinc sulfide;
20 parts of germanium.
A production process of a far infrared short wave cut-off film for a die pressing aspheric lens comprises the following steps:
s1, respectively plating film layers with different performances and different thicknesses on the first optical surface and the second optical surface of the lens, and plating the film by using an infrared optical film plating machine by adopting a vacuum evaporation method;
s2, completing film preparation through a layered film coating method and a film coating mode of alternately using an electron gun and vapor barrier, and simultaneously using an ion source for assistance;
and S3, combining the materials of the layers to obtain the far infrared short-wave cut-off film for the die pressing aspheric lens.
Compared with the prior art, the far infrared short wave cut-off film for the die pressing aspheric lens has the beneficial effects that: has high transmittance and high cut-off rate.
Detailed Description
The invention is further described with reference to specific examples.
Example 1
A far infrared short-wave cut film for a molded aspherical lens includes a first optical surface and a second optical surface;
the first optical surface comprises the following components in parts by weight:
1 part of yttrium oxide;
65 parts of ytterbium fluoride;
15 parts of zinc sulfide;
25 parts of germanium;
the second optical surface comprises the following components in parts by weight:
3 parts of yttrium oxide;
60 parts of ytterbium fluoride;
30 parts of zinc sulfide;
10 parts of germanium.
A production process of a far infrared short wave cut-off film for a die pressing aspheric lens comprises the following steps: s1, respectively plating film layers with different performances and different thicknesses on the first optical surface and the second optical surface of the lens, and plating the film by using an infrared optical film plating machine by adopting a vacuum evaporation method; s2, completing film preparation through a layered film coating method and a film coating mode of alternately using an electron gun and vapor barrier, and simultaneously using an ion source for assistance; and S3, combining the materials of the layers to obtain the far infrared short-wave cut-off film for the die pressing aspheric lens.
Example 2
A far infrared short-wave cut film for a molded aspherical lens includes a first optical surface and a second optical surface;
the first optical surface comprises the following components in parts by weight:
2 parts of yttrium oxide;
70 parts of ytterbium fluoride;
10 parts of zinc sulfide;
20 parts of germanium;
the second optical surface comprises the following components in parts by weight:
2 parts of yttrium oxide;
55 parts of ytterbium fluoride;
35 parts of zinc sulfide;
and 15 parts of germanium.
A production process of a far infrared short wave cut-off film for a die pressing aspheric lens comprises the following steps: s1, respectively plating film layers with different performances and different thicknesses on the first optical surface and the second optical surface of the lens, and plating the film by using an infrared optical film plating machine by adopting a vacuum evaporation method; s2, completing film preparation through a layered film coating method and a film coating mode of alternately using an electron gun and vapor barrier, and simultaneously using an ion source for assistance; and S3, combining the materials of the layers to obtain the far infrared short-wave cut-off film for the die pressing aspheric lens.
Example 3
A far infrared short-wave cut film for a molded aspherical lens includes a first optical surface and a second optical surface;
the first optical surface comprises the following components in parts by weight:
3 parts of yttrium oxide;
75 parts of ytterbium fluoride;
5 parts of zinc sulfide;
15 parts of germanium;
the second optical surface comprises the following components in parts by weight:
1 part of yttrium oxide;
50 parts of ytterbium fluoride;
40 parts of zinc sulfide;
20 parts of germanium.
A production process of a far infrared short wave cut-off film for a die pressing aspheric lens comprises the following steps: s1, respectively plating film layers with different performances and different thicknesses on the first optical surface and the second optical surface of the lens, and plating the film by using an infrared optical film plating machine by adopting a vacuum evaporation method; s2, completing film preparation through a layered film coating method and a film coating mode of alternately using an electron gun and vapor barrier, and simultaneously using an ion source for assistance; and S3, combining the materials of the layers to obtain the far infrared short-wave cut-off film for the die pressing aspheric lens.
Examples 1-3 of the invention have the following test properties:
the optical properties of examples 1 to 3 according to the invention are given in the following table:
from the above test results, the present invention has high transmittance and high cut-off rate.
The foregoing examples are provided to facilitate an understanding of the principles of the invention and their core concepts, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention. The scope of the invention is defined by the claims and may include other embodiments that occur to those skilled in the art. Such other embodiments are intended to be within the scope of the claims if they have structural elements that approximate the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
Claims (5)
1. A far infrared short wave cut-off membrane for mould pressing aspheric lens which characterized in that: comprising a first optical surface and a second optical surface;
the first optical surface comprises the following components in parts by weight:
1-3 parts of yttrium oxide;
65-75 parts of ytterbium fluoride;
5-15 parts of zinc sulfide;
15-25 parts of germanium;
the second optical surface comprises the following components in parts by weight:
1-3 parts of yttrium oxide;
50-60 parts of ytterbium fluoride;
30-40 parts of zinc sulfide;
10-20 parts of germanium.
2. The far infrared short-wave cutoff film for molded aspherical lenses according to claim 1, wherein: the first optical surface comprises the following components in parts by weight:
1 part of yttrium oxide;
65 parts of ytterbium fluoride;
15 parts of zinc sulfide;
25 parts of germanium;
the second optical surface comprises the following components in parts by weight:
3 parts of yttrium oxide;
60 parts of ytterbium fluoride;
30 parts of zinc sulfide;
10 parts of germanium.
3. The far infrared short-wave cutoff film for molded aspherical lenses according to claim 1, wherein: the first optical surface comprises the following components in parts by weight:
2 parts of yttrium oxide;
70 parts of ytterbium fluoride;
10 parts of zinc sulfide;
20 parts of germanium;
the second optical surface comprises the following components in parts by weight:
2 parts of yttrium oxide;
55 parts of ytterbium fluoride;
35 parts of zinc sulfide;
and 15 parts of germanium.
4. The far infrared short-wave cutoff film for molded aspherical lenses according to claim 1, wherein: the first optical surface comprises the following components in parts by weight:
3 parts of yttrium oxide;
75 parts of ytterbium fluoride;
5 parts of zinc sulfide;
15 parts of germanium;
the second optical surface comprises the following components in parts by weight:
1 part of yttrium oxide;
50 parts of ytterbium fluoride;
40 parts of zinc sulfide;
20 parts of germanium.
5. A production process of a far infrared short wave cut-off film for a die pressing aspheric lens is characterized by comprising the following steps:
s1, respectively plating film layers with different performances and different thicknesses on the first optical surface and the second optical surface of the lens, and plating the film by using an infrared optical film plating machine by adopting a vacuum evaporation method;
s2, completing film preparation through a layered film coating method and a film coating mode of alternately using an electron gun and vapor barrier, and simultaneously using an ion source for assistance;
and S3, combining the materials of the layers to obtain the far infrared short-wave cut-off film for the die pressing aspheric lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010339972.9A CN111474617A (en) | 2020-04-26 | 2020-04-26 | Far infrared short wave cut-off film for mould pressing aspheric lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010339972.9A CN111474617A (en) | 2020-04-26 | 2020-04-26 | Far infrared short wave cut-off film for mould pressing aspheric lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111474617A true CN111474617A (en) | 2020-07-31 |
Family
ID=71755887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010339972.9A Pending CN111474617A (en) | 2020-04-26 | 2020-04-26 | Far infrared short wave cut-off film for mould pressing aspheric lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111474617A (en) |
-
2020
- 2020-04-26 CN CN202010339972.9A patent/CN111474617A/en active Pending
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200731 |
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| WD01 | Invention patent application deemed withdrawn after publication |