TWI245920B - A multiband combiner - Google Patents

Abstract

The present invention relates to a multiband combiner with full color and multiband filter, especially a combiner that can be used for head-up display that has the function of full color range. The multiband combiner is made by dielectric multilayer which has different refractive index. Therefore, the multiband stop filter in visible range can be made by this invention. This invention can be applied in the field of head-up display and has the properties of high transparency and full color display.

Description

1245920 V. Description of the invention (1) ------- [Technical field to which the invention belongs] t The invention relates to a full-color multi-band superimposed image, especially for raising a display device with a full-color display function. Multi-band overlay. [Previous technology] The purpose of the head-up display is to enable the driver to look down at the dashboard when maneuvering a vehicle or an aircraft. The head-up display can directly display the relevant information of the instrument and the board and the external scene together on the driver ’s screen. Eyes: To reduce the burden on the driver and provide a wider field of vision to increase driving safety. In the control of the fighter aircraft, the weapon ’s obscure ability can reach the realm of man-machine integration. The application principle and method of the head-up display, which is not revealed by Ding Tube I, is the instrument panel or targeting system. 2 is projected onto the coated substrate 3 and the "substrate" and "image 2" are used to generate a virtual display 4, and the projection of the instrument panel or the aiming system 2 is displayed in the production of the head-up display, in order to achieve the function of full-color display Moon daggers are mostly made by optical multilayer coating. In the conventional technology, there are the following patents and papers on the design of optical multilayer films: > Zhonghua, National Patent No. 3381 11, which proposes a full-color stacked image mirror for a head-up display, which uses a high and low refractive index film stack method The design is one of the few patents for two-image mirrors in China. The advantage is that the design is simple and plated = two and V, but the disadvantage is that there is about 30¾ of light loss. (2) In U.S. Patent No. 4,545,646, owned by Huges Aircraft Company, the technology shown is a filter made using a graded refractive index technology, but the results are very large outside the desired peak Ripple (RipPle), &

1245920

The overall average penetration of the light sheet is greatly reduced. (3) In U.S. Patent No. 5,181,143 'owned by RockweH Internatiatia Corporation, the disclosed technology is to first find out the refractive index of the optical film (refractive lndex) versus the optical thickness (optical thickness) ) Graph, and then cut the refractive index parameters (C1 i ppi ng) beyond the Han range, and then increase the physical thickness of the film to reduce the optical density lost due to the shortening. This reduces the need for refractive index parameters and reduces the complexity of bonding. (4) In British Patent No. 2265726, owned by GEC-Marconi Ufflited, the proposed technology uses a gradient index method to design a filter with two or three peaks. Full color filter on heads-up display. (5) The Institute of Optoelectronics, National Central University also has a number of researches on the plating of optical films, such as He Kunrong's master thesis in the 83rd year of the Republic of China, using Fourier transform as the optical film design. "Design and plating of graded-index optical films." ,

The above patents and papers are in the field of optical film design and production. 'Although the design of graded-refractive-index optical films is different from the conventional high- and low-refractive-index film stacks in terms of film thickness and incident angle changes, the corresponding wavelength changes. The design made by the method is much less; at the same time, the error allowed during production can be greater than the design error using the low-refractive-index film stack method. However, due to the soft and hard coating of the graded refractive index optical film, such as accurate gas flow control systems and film thickness monitoring systems, there are very high technical door molds. [Summary of the Invention]

1245920

The purpose of the present invention is to propose a new film structure with the same film, which can superimpose the existing segment image. [This overlay image uses a special film thickness monitoring system, which can be designed: the coating machine does not need to make the band filter 1 when designing Filters of different colors can be made at cut-off lengths above "in." The wave cut of the desired cut-off band is a special digitization method that changes the refractive index parameter in a digitized manner, ㈣: m platform, optical film Advantages, but there is no problem caused by continuous t change. Inverse, the formula changes the refractive index parameters In addition, the non-absorbing oxide material of the present invention is used as a refractive index parameter, such as chemical deposition ion assisted plating 、 Microwave assisted plating [Embodiment] The material for the production of optical filters in order to change the establishment of gas flow. Key film method, ion sputtering, bias, ion beam ion assisting method, using at least two ratios or targets The relative material can be generally used in the industry to assist plating, plasma assisted plating, etc. The present invention uses a special digitizing process as a layer setting method to change the #emissivity parameter. Multi-refractive index dielectric layer, the substrate can be broken glass or plastic. Table 1 shows the parameters of each layer of film: / Refer to the full-color multi-band superimposed image film made by the present invention, co-forged For the film, from the data disclosed in Table 1, it can be known that the thickness% of each layer of the film is between the layer thickness of 0.3 to 3.6, and the refractive index is between ι · 6 to 1.9. Therefore, "1; full-color multi-band superimposed photos can reach a level of 80% in the visible light garden. Tooth rate exceeds

1245920 V. Description of the invention (4) Table 1: Number of structural layers of the multi-band superimposed film 1 2 3 4 5 6 7 8 9 1 0 Thickness 1 · 4 0 · 3 3. 6 0 · 3 0 · 9 0 · 5 0 · 7 0 · 7 0 · 5 0 · 9 Refractive index 1 · 7 1 · 6 1 · 7 1.6 1.7 1.8 1.7 1.6 1.7 1.8 Number of layers 11 12 13 14 15 16 17 18 19 20 Thickness 0.3 3 1 · 2 0 9 0 · 4 0 · 6 0 · 5 0 · 5 0 · 7 0 · 5 0 · 7 Refractive index 1 · 7 1.6 1.8 1.9 1.7 1.6 1.7 1.9 1.8 1.6 Number of layers 21 2 2 23 24 25 26 27 28 29 30 Thickness 0. 7 0 · 5 1 · 2 0 · 7 1 1 1.2 1.4 0.4 0.3 Refractive index 1 · 8 1 · 9 1.7 1 · 8 1 · 7 1 · 8 1 · 7 1.8 1.7 1.8 Number of layers 31 32 33 34 35 36 37 38 39 40 Thickness 1 · 2 0 · 5 0 · 4 0 · 3 0 · 3 0 · 9 1 · 2 0 · 9 0 · 3 0 · 3 Refractive index 1 · 7 1 · 8 1.9 1 · 8 1 · 7 1 · 6 1.8 1.6 1.7 1.8 Number of layers 41 42 43 44 45 46 4 7 48 49 50 Thickness 0 · 4 0 · 5 1 · 2 0 · 3 0 · 4 1 · 4 0 · 3 0 · 9 1 1 1.9 1 · 8 1.7 1 · 8 1.7 1.8 1.7 1 · 7 1.8 1.7 Number of layers 51 5 2 53 54 55 56 5 7 58 59 60 Thickness 0 · 7 1 · 2 0 · 5 0 · 7 0 · 7 0 · 5 0 7 0 · 5 0. 5 0 · 6 Refractive index 1 · 8 1 · 7 1 · 9 1.8 1.6 1 · 9 1.7 1.6 1 · 7 Number of layers 61 6 2 63 64 65 66 6 7 68 69 70 thickness 0 · 4 1 1.2 0.3 0.9 0.5 0.7 0.7 0.5 0.9 refractive index 1 · 9 1.8 1.6 1 · 7 1.8 1 · 7 1.6 1 · 7 1 · 8 1 · 7

1245920 V. Description of the invention (5) 73 74 0.3 1.-1.6 1. 1 Number of layers 71 72 Thickness 0.3t Refractive index 1. 6 1 · Of the oxygen 11: I filter? The mode of operation is to use at least two kinds of non-absorption refractive indices H; 'to change the gas flow ratio or the relative position of 作为 as the establishment of 2 Λ; where the material of the thin film layer can be a secondary, ⑽2 g, Si 2, SiN , Coffee or mixed film of the above materials. As shown in Figure 2, it is the transmission spectrum of a full-color multi-band superimposed image. There will be three sunken dents in the visible range during the transmission, which represents that when the two wavelengths of light are incident at 45 degrees, the Parts will not penetrate and will have the effect of reflection. These three wavelengths are 63nm, 54nm, and 45nm. Corresponding to the three primary & red, green, and blue used by the display, and the three primary colors can be combined to produce a full-color image. The reflectances at these three narrow-wavelength reflection band positions are more than 45%, and the reflectance is greater than the average reflectance in the visible range by more than 25%, in order to facilitate the clarity and sharpness of the image. As shown in Figure 3, 'the CIE chromaticity coordinate diagram of the full-color multi-band superimposed image's penetration spectrum at the time', it is calculated that the CIE coordinates of this spectrum are X = 〇 · 331 and Υ = 0 · 331, Falling in a white area, its meaning is a full-color image of visible light 'when passing through this full-color overlay, there will be no color shift causing image color distortion' Image colors are the same. Fig. 4 shows the structure of this full-color multi-band superimposed image, and the horizontal axis is

Page 10 1245920 V. Description of the invention The optical thickness is stacked with different refractive emissivities. This all-user will not be caused by light, which can make him use it in low-light days, and can make his head up to high brightness and ::: thickness. The vertical axis is its corresponding refractive index, and the double-stacked image using four 2 = 隹 stacking has better optical characteristics than the traditional image with only high and low folds. The advantage of the multi-band superimposed photo is that it can write the transmittance for the line of sight through the head-up spear, so that using this broadcast system and losing too much outside world, use this superimposed image in a smart environment. Still able to hold = all at night or its full picture against the three c field. The contrast of the BB in the image of the white monitor has the characteristic of long reflection, and the power saving requirement is 0 ′ to display the full-color function.

1245920 Brief description of drawings Figure 1 is a schematic diagram of a head-up display. Fig. 2 is a transmission spectrum chart of a full-color multi-band superimposed image of the present invention at 45 degrees. Figure 3 is a CIE coordinate diagram of the full-spectrum multi-band superimposed image of the present invention at 45 degrees through the transmission spectrum. Fig. 4 is a refractive index and thickness distribution chart of the full-color multi-band superimposed image of the present invention. -Display unit 2--Dashboard or aiming system 3--Overlay photo 4--Virtual display

Claims (1)

12459 /-·! / V * Zheng VI, Shen Λ 羽 1: 1. A full-color multi-band superimposed photo, characterized by: digitizing? Variable refractive index parameters. Multiple layers are plated in a staggered manner on the substrate without changing the refractive index. 'Multi-refractive index dielectric layers are formed to form a multi-band most photographic film.' The wavelength reflection band can reflect the wavelength emitted by the corresponding display. 2. Heading 2. As described in item 1 of the scope of patent application, the full-color multi-band superimposed film can be made of glass or plastic. ^ 3. The full-color multi-band superimposed image described in item 1 of the scope of the patent application has three narrow-wavelength reflection bands, respectively corresponding to a wavelength of 63nm red light, a 540nm long green light, and a wavelength of 45nm. Blu-ray. (4) The full-color multi-band superimposed photo described in Shi Jian's patent claim 3, the reflectance of these multiple narrow-wavelength reflection bands is at the wavelengths of 63nm, 540nm, and 45nm. More than 45%. 5 · According to the full-color multi-band superimposed photo described in item * of the patent application range, the reflectances of the complex narrow-wavelength reflection bands are all greater than visible ", and the average reflectance is more than 25%. & Wai Ping 6 · = The full-color multi-band superimposed image described in the patent application No. 丨, a plurality of layers of different refractive index film layers include two or more kinds of: Rate film layer. Emissivity I · ^ The full-color multi-band superimposed image described in item Θ of the scope of patent application,-multiple layers of different refractive index films such as-Hai include more than two layers: of which 8 · as in the scope of patent application No. 6 The thickness of each film layer of the full-color multi-band superimposed image described in item is between 0.3 ~ ^ 6 // m. 6 和 1 · 9 之间。 Q application and one each = each full-color multi-band superimposed photo as described in item 6 of the patent range, the 10 ·· such as said split rate is between 1.6 ~ 1.9. 'This superimposed image is a full-color multi-band superimposed image as described in item 6 of the patent scope, in which the average transmittance in the visible range of 11 ± A exceeds 80%. • A film with multiple refractive indices as described in Item 1 of the Patent Scope]: King-shaped multi-band * photo, where Si〇2, SiN, SiN0, or sun blade can be TaA, Tl () 2, MgF2, a mixed film of cymbal material. Page 14