Double-sided uniform glue chromium plate
By designing a double-sided uniform chrome plate, including a multi-layer structure of chrome nitrogen oxide layer and anti-reflection layer, the problem of the existing uniform chrome plate having only one side etching pattern is solved, and the double-sided display effect is achieved on a single chrome plate , reduces costs and verification times.
Patent Information
- Application Number
- CN202420974530.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing uniform chrome plates have only one side of the etching pattern, which leads to the use of two uniform chrome plates when two graphics are needed, which increases the cost and the number of verifications of optical design.
Design a double-sided uniform chromium plate, with the structure from top to bottom, the first anti-depression layer, the first chromium nitrogen oxide layer, the first anti-reflection layer, the glass substrate layer, the second anti-reflection layer, and the second chromium nitrogen The thickness and performance of the oxide layer and the second anti-depressed layer are specified in specific specifications to achieve a double-sided display effect.
The double-sided uniform chrome plate can achieve double-sided display effect on a chrome plate, saving costs and reducing the number of verifications of optical designs.
Smart Images
Figure CN222167257U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical coating, in particular to a double-sided chrome plate. Background Art
[0002] As we all know, with the continuous innovation of technology, the production of optical accessories is becoming more and more precise, and the requirements for production technology are also increasing. From the original laser and other processing methods, it has gradually turned to micro-nano processing; the commonly used method is: first coat the optical glass substrate, and then apply photosensitive glue to obtain the corresponding pattern through photolithography. However, the existing chrome plate has the following defects: only one side is etched with a pattern, so when two patterns are needed, two chrome plates are required, which increases the cost and increases the number of optical design verifications.
[0003] Therefore, a double-sided chrome plate is urgently needed to solve the above problems. Utility Model Content
[0004] The utility model aims at the current technical deficiencies and provides a double-sided chrome plate with uniform glue.
[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:
[0006] A double-sided chrome plate comprises a first anti-sag layer, a first chromium nitride oxide layer, a first anti-reflection layer, a glass substrate layer, a second anti-reflection layer, a second chromium nitride oxide layer and a second anti-sag layer, which are arranged in sequence from top to bottom. The thickness of the first anti-sag layer and the thickness of the second anti-sag layer are both 8-15 nm.
[0007] As a further improvement, the thickness of the first chromium nitride oxide layer and the thickness of the second chromium nitride oxide layer are both 45-50 nm.
[0008] As a further improvement, the thickness of the first anti-reflection layer and the thickness of the second anti-reflection layer are both 30-35 nm.
[0009] As a further improvement, the glass substrate layer has a light transmittance greater than 85%, a refractive index of 1.5-1.7, and a density greater than or equal to 2.5 g per cubic centimeter.
[0010] As a further improvement, the size of the glass substrate layer is 3-8 inches, and the double-sided flatness of the glass substrate layer is less than or equal to 10 microns.
[0011] Beneficial effects of the utility model: a double-sided chrome plate of the utility model comprises a first anti-sag layer, a first chrome nitride oxide layer, a first anti-reflection layer, a glass substrate layer, a second anti-reflection layer, a second chrome nitride oxide layer and a second anti-sag layer arranged in sequence from top to bottom, and the thickness of the first anti-sag layer and the thickness of the second anti-sag layer are both 8-15nm. Therefore, the utility model can achieve a double-sided display effect on a double-sided chrome plate through the above structure, which can save costs and reduce the number of verification times of optical design.
[0012] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the double-sided chrome plate of the utility model. DETAILED DESCRIPTION
[0014] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.
[0015] Please refer to Figure 1 The utility model discloses a double-sided chrome plate 100, comprising a first anti-sag layer 10, a first chromium nitride oxide layer 20, a first anti-reflection layer 30, a glass substrate layer 40, a second anti-reflection layer 50, a second chromium nitride oxide layer 60 and a second anti-sag layer 70 arranged in sequence from top to bottom, and the thickness of the first anti-sag layer 10 and the thickness of the second anti-sag layer 70 are both 8-15nm. For example, the thickness of the first chromium nitride oxide layer 20 and the thickness of the second chromium nitride oxide layer 60 are both 45-50nm. In addition, the thickness of the first anti-reflection layer 30 and the thickness of the second anti-reflection layer 50 are both 30-35nm; but it is not limited thereto.
[0016] Please continue to refer to Figure 1 The glass substrate layer 40 has a light transmittance greater than 85%, a refractive index of 1.5-1.7, and a density greater than or equal to 2.5 g per cubic centimeter. Specifically, the size of the glass substrate layer 40 is 3-8 inches, and the double-sided flatness of the glass substrate layer 40 is less than or equal to 10 microns.
[0017] The following is the production process of the double-sided chrome plate 100 of the utility model: the first step is to select a suitable glass substrate, which needs to meet the following conditions: the transmittance of the glass substrate in the visible light band is greater than 85%, the refractive index is 1.50-1.70Nd, the annealing temperature is greater than 540°C, and the density is greater than 2.5g / cubic centimeter. The cut glass substrate (size is 3-7 inches) is double-sided polished to make its flatness ≤10μm, and the glass substrate is ultrasonically cleaned, dried, and then left to stand to obtain a glass substrate layer 40; the second step is to place the magnetron sputtering coating machine into the chrome The target is placed in a vacuum state of 2.5E-3Pa, the temperature is 150-200°, the power is 5500-8000w, and the first anti-sag layer 10 is deposited with a thickness of 8-15nm. The purpose is to prevent the release of glass sodium ions and the reaction with the first chromium nitrogen oxide layer 20, resulting in insufficient adhesion and film stripping. In the third step, the magnetron sputtering coating machine is placed in a chromium target, the vacuum degree reaches 2.5E-3Pa, the temperature is 150-200°, the power is 5500-8000w, and the first chromium nitrogen oxide layer 20 is deposited with a thickness of 45-50nm. The main gases are nitrogen and argon. ; Step 4: Place the chromium target in the magnetron sputtering coating machine, the vacuum degree reaches 2.5E-3Pa, the temperature is 150-200°, the power is 5500-8000w, and the first anti-reflection layer 30 is deposited with a film thickness of 30-35nm; Step 5: Check and select the semi-finished products, and the following conditions must be met: there are no visible bubbles, cracks, impurities, and broken surfaces in the chromium film quality area, there are no pinholes or scratches ≥4μm*6mm (W*L), there are no fingerprints or discoloration in the quality area, the reflectivity is 10±1%, the wavelength is 440±20nm, and the optical Density: 3.0-3.4; Step 6, repeat the above steps 2-5 for the b-side of the glass substrate layer 40; Step 7, respectively, spin-coat the first anti-reflection layer 30 and the second anti-reflection layer 50 with photosensitive adhesive by spin coating, the adhesive thickness is 500±8nm, the number of visible bubbles and impurities on the adhesive surface is zero, the surface particles of the photosensitive adhesive are 3-10μm≤0.01pc per cubic centimeter, and there are no dense particles; Step 8, place the products with the photosensitive adhesive coated on both end faces in a dust-free anti-exposure packaging box, and transfer it to the photolithography workshop to make optical components.
[0018] Beneficial effects of the utility model: A double-sided chrome plate 100 of the utility model comprises a first anti-sag layer 10, a first chrome nitride oxide layer 20, a first anti-reflection layer 30, a glass substrate layer 40, a second anti-reflection layer 50, a second chrome nitride oxide layer 60 and a second anti-sag layer 70 arranged in sequence from top to bottom, and the thickness of the first anti-sag layer 10 and the thickness of the second anti-sag layer 70 are both 8-15 nm. Therefore, the utility model can achieve a double-sided display effect on a double-sided chrome plate 100 through the above structure, which can save costs and reduce the number of verification times of optical design.
[0019] The present invention is not limited to the above-mentioned implementation mode. Other double-sided chrome plates obtained by using the same or similar structures or devices as the above-mentioned embodiments of the present invention are all within the protection scope of the present invention.
Claims
1. A double-sided chrome plate, characterized by: It includes a first anti-sag layer, a first chromium nitride oxide layer, a first anti-reflection layer, a glass substrate layer, a second anti-reflection layer, a second chromium nitride oxide layer and a second anti-sag layer arranged from top to bottom. The thickness of the first anti-sag layer and the thickness of the second anti-sag layer are both 8-15nm.
2. The double-sided chrome plate according to claim 1, characterized in that: The thickness of the first chromium nitride oxide layer and the thickness of the second chromium nitride oxide layer are both 45-50 nm.
3. The double-sided chrome plate according to claim 2, characterized in that: The thickness of the first anti-reflection layer and the thickness of the second anti-reflection layer are both 30-35 nm.
4. The double-sided chrome plate according to claim 3, characterized in that: The glass substrate layer has a light transmittance greater than 85%, a refractive index of 1.5-1.7, and a density greater than or equal to 2.5 g per cubic centimeter.
5. The double-sided chrome plate according to claim 4, characterized in that: The size of the glass substrate layer is 3-8 inches, and the double-sided flatness of the glass substrate layer is less than or equal to 10 microns.