TWI736466B - Optical recording apparatus - Google Patents

Abstract

An optical recording apparatus includes at least one light guiding layer, a plurality of light emitting units, and a sensitized medium. The light guiding layer includes a plurality of transparent structures and a plurality of light-absorbing structures which are alternately and immediately stacked . The light emitting units are respectively located on the transparent structure, and the light emitting units are configured to emit light toward the corresponding transparent structures. The sensitized medium is located under the light guiding layer, and the sensitized medium is configured to receive the light which is emitted from the light emitting units and passes through the light guiding layer.

Description

Optical recording device

The invention relates to an optical recording device, in particular to an optical recording device for recording images.

In an optical recording device using a photosensitive medium, the optical signals generated by multiple light sources may interfere with and overlap each other, causing the images of the recorded position area to interfere with each other. Therefore, in addition to the overall appearance of the image after being reproduced, it will look quite blurry, and the image boundary may not be sharp enough, so the image quality is not good, so the detailed features after imaging may be quite unclear and difficult to recognize.

To put it simply, because the light signals interfere with each other, the image recorded on the photosensitive medium may be affected. The picture reproduced by the photosensitive medium will therefore be quite blurred, and even the image may be difficult to recognize.

Therefore, many private enterprises or related academic research units in the optoelectronics industry have invested a lot of funds, manpower, and time on the research of optical recording devices, and are eager to improve various characteristics of the optical recording devices.

In view of this, one objective of the present invention is to provide an optical recording device that can solve the above-mentioned problems, which includes at least one light guide layer, a plurality of light-emitting units and a photosensitive medium. The light guide layer includes a plurality of light-transmitting structures and a plurality of light-absorbing structures, wherein the plurality of light-transmitting structures and the plurality of light-absorbing structures are arranged alternately in a lateral direction. The plurality of light-emitting units are respectively arranged on the plurality of light-transmitting structures of the light guide layer, and the plurality of light-emitting units are used to emit light toward the corresponding light-transmitting structures. The photosensitive medium is arranged under the light guide layer, and the photosensitive medium is used for receiving the light emitted by the plurality of light-emitting units passing through the light guide layer.

In one or more embodiments of the present invention, the plurality of light-transmitting structures have cross-sectional characteristics with a narrow top and a wide bottom.

In one or more embodiments of the present invention, the plurality of light-transmitting structures have a trapezoidal cross-section or a rectangular cross-section.

In one or more embodiments of the present invention, the optical recording device further includes two transparent substrates, and the two transparent substrates sandwich the light guide layer up and down.

In one or more embodiments of the present invention, the longitudinal height H1 of the light-transmitting structure is the longitudinal center axis of two adjacent light-absorbing structures separated by a distance W1, wherein H1/W1 is between 0.1 and 0.15.

In one or more embodiments of the present invention, the light emitted by the light-emitting unit through the light guide layer has a maximum divergence angle ranging from 60 degrees to 120 degrees.

In one or more embodiments of the present invention, the plurality of light-transmitting structures are cylinders, cones, square cylinders, or polygons.

In one or more embodiments of the present invention, the at least one light guide layer includes an upper light guide layer and a lower light guide layer stacked longitudinally, wherein a plurality of light-transmitting structures of the upper light guide layer are respectively disposed on the lower light guide layer Above the plurality of light-transmitting structures.

In one or more embodiments of the present invention, the light-transmitting structure of the upper light guide layer has a rectangular cross-section or a trapezoidal cross-section, and the plurality of light-transmitting structures of the lower light guide layer has a rectangular cross-section or a trapezoidal cross-section.

In one or more embodiments of the present invention, the plurality of light-transmitting structures of the upper light guide layer and the plurality of light-transmitting structures of the lower light guide layer respectively form a cross-sectional feature with a narrow upper and a wide lower surface.

In summary, the light guide layer of the present invention has a plurality of light-transmitting structures and a plurality of light-absorbing structures alternately arranged. Since the light passing through the light-guide layer exceeding a specific angle will be absorbed by the light-absorbing structure, it passes The light traveling angle of the light-transmitting structure is concentrated to facilitate the photosensitive medium to receive light, record images, and improve imaging quality.

The above description is only used to illustrate the problem to be solved by the present invention, the technical means to solve the problem, and the effects produced by it, etc. The specific details of the present invention will be described in detail in the following embodiments and related drawings.

Hereinafter, a plurality of embodiments of the present invention will be disclosed in drawings. For clear description, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventionally used structures and elements will be shown in the drawings in a simple and schematic manner.

Please refer to FIG. 1, which is a schematic side view of the optical recording device 100 in some embodiments of the present invention. The optical recording device 100 includes a plurality of light emitting units 110, at least one light guide layer 130 and a photosensitive medium 150. The light guide layer 130 includes a plurality of light-transmitting structures 131 and a plurality of light-absorbing structures 133, wherein the plurality of light-transmitting structures 131 and the plurality of light-absorbing structures 133 are arranged alternately and laterally immediately. The plurality of light-emitting units 110 are respectively disposed on the plurality of light-transmitting structures 131 of the light guide layer 130, and the plurality of light-emitting units 110 emit light at least toward the corresponding light-transmitting structure 131, that is, the light-emitting unit 110 faces the transparent structure below it. The light structure 131 emits light. In addition, the photosensitive medium 150 is disposed under the light guide layer 130, and the photosensitive medium 150 may be spaced apart from the light guide layer 130. The photosensitive medium 150 is used to receive and record the light emitted by the plurality of light-emitting units 110 through the light guide layer 130. L and record the image. The plurality of light-emitting units 110, the light guide layer 130, and the photosensitive medium 150 can be fixed to each other via a housing, a mechanical structure or other suitable structures. For ease of understanding, the diagrams are shown in a relatively concise manner. The technical field of the present invention Those with general knowledge should be able to make adjustments according to their needs. For ease of description, in this disclosure, the vertical and vertical directions are the same axial direction, and the horizontal and vertical directions are perpendicular to each other.

In other words, a plurality of light emitting units 110 are located above the upper end 130x of the light guide layer 130, and the photosensitive medium 150 is located below the lower end 130y of the light guide layer 130, wherein the upper end 130x is an end of the light guide layer 130 adjacent to the light emitting unit 110, The lower end 130y is the other end of the light guide layer 130 adjacent to the photosensitive medium 150, and the upper end 130x and the lower end 130y are opposite ends of the light guide layer 130, respectively.

In some embodiments of the present invention, the light-emitting unit 110 has a red light source 110R, a green light source 110G, and a blue light source 110B that can respectively emit red light, green light, and blue light. Specifically, the red light source 110R, the green light source 110G, and the blue light source 110B may include light-emitting diodes (LEDs), such as micro LEDs and sub-millimeter light-emitting diodes. (mini LED) or organic light emitting diode (organic LED, OLED), but the invention is not limited to this. In addition, the optical recording device 100 further includes a driving circuit, which is electrically connected to the light-emitting unit 110, and the driving circuit is used to control the light-emitting unit 110 to emit light toward the light guide layer 130.

The light guide layer 130 includes a plurality of light-transmitting structures 131 and a plurality of light-absorbing structures 133 that are alternately arranged next to each other. Since light exceeding a certain angle is absorbed by the light-absorbing structure 133, the angle of light passing through the light-transmitting structure 131 is concentrated , In order to facilitate the photosensitive medium 150 to receive light, record images and improve imaging quality. In addition, the plurality of light-transmitting structures 131 and the plurality of light-absorbing structures 133 may be bonded to each other via optically clear adhesive (OCA), but the present invention is not limited thereto. In some embodiments of the present invention, the material of the light-transmitting structure 131 and the light-absorbing structure 133 includes a silicon-containing compound, such as silicone, and the light-absorbing structure 133 is further mixed or mixed with black dyes or light-absorbing Material. Thereby, the light-transmitting structure 131 has good light transmittance, while the light-transmitting rate of the light absorbing structure 133 is close to 0, and the light absorbing structure 133 has substantially excellent light absorbing ability.

In some embodiments of the present invention, the lateral cross-sections of the light-transmitting structure 131 and the light-absorbing structure 133 are rectangular, the width 131W of the light-transmitting structure 131 is approximately the same as the width 133W of the light-absorbing structure 133, and the longitudinal height of the light-transmitting structure 131 H1 and the longitudinal height H2 of the light absorbing structure 133 are also approximately the same, but the invention is not limited to this. In addition, the longitudinal center axes 133M of two adjacent light absorbing structures 133 are separated by a distance W1, wherein the longitudinal height H1/distance W1 is between 0.1 and 0.15. The ratio between the longitudinal height H1 and the distance W1 will affect the angle of light passing through the light guide layer 130 (that is, only a specific angle of light can pass through the light guide layer 130), thereby improving the light receiving condition of the photosensitive medium 150 Its imaging quality. In some embodiments of the present invention, the light L emitted by the light-emitting unit 110 through the light guide layer 130 has a maximum divergence angle ranging from 60 degrees to 120 degrees. In other words, the maximum angle θ between the light L and the longitudinal center axis 131M of the light-transmitting structure 131 is between 30 degrees and 60 degrees. Therefore, it can be clearly seen that the concentration of the light L is good. Therefore, the optical recording device 100 has excellent performance. Image recording function.

In some embodiments of the present invention, the plurality of light-transmitting structures 131 and the plurality of light-absorbing structures 133 of the light guide layer 130 are a plurality of light-transmitting layers and a plurality of light-absorbing layers arranged alternately in a transverse direction. In this way, the light guide layer 130 has a plurality of collimated light channels, and the light divergence can be limited in a specific area. The layered design allows the image recorded and further generated by the photosensitive medium 150 to have a sharp and obvious boundary effect, but the present invention is not limited to this. In addition, the plurality of light-transmitting structures 131 may also be cylinders, cones, square cylinders or other polygonal cylinders, and the present invention is not limited thereto.

In some embodiments of the present invention, the optical recording device 100 further includes two transparent substrates 140 respectively disposed on the upper and lower sides of the light guide layer 130. In other words, the two transparent substrates 140 sandwich the upper and lower sides of the light-transmitting structure 131 and the light-absorbing structure 133 along the longitudinal direction, so the arrangement direction of the plurality of light-transmitting structures 131 and the plurality of light-absorbing structures 133 will be perpendicular to the two transparent substrates 140 The clamping direction. In addition, the light-emitting unit 110 is disposed on the transparent substrate 140 above the light-transmitting structure 131 and the light-absorbing structure 133. Specifically, the two transparent substrates 140 are made of transparent materials, such as polyethylene terephthalate (PET), polycarbonate (PC) or transparent glass, but the present invention does not Not limited to this.

In some embodiments of the present invention, the photosensitive medium 150 may be a negative film, a film roll, or other elements coated with a photosensitive material. Please refer to FIG. 3, which depicts a schematic diagram of the structure of the photosensitive medium 150 of the optical recording device 100 according to some embodiments of the present invention. The photosensitive medium 150 includes a plurality of developer layers 151 and a plurality of silver salt layers 153 arranged alternately. The plurality of developer layers 151 include a blue developer layer 151B, a red developer layer 151R, and a yellow developer layer 151Y, and a plurality of silver salt layers The layer 153 includes a red light silver salt layer 153R, a green light silver salt layer 153G, and a blue silver salt layer 153B, but the present invention is not limited thereto. Thereby, the photosensitive medium 150 can form a latent image through the plurality of developer layers 151 and the plurality of silver salt layers 153 after receiving the light L, so that the photosensitive medium 150 has the function of recording images. In addition, the photosensitive medium 150 can transfer the recorded image to a positive film through a development reaction and pressure (for example, using a roller), whereby the optical recording device 100 of the present invention can be applied to a camera, such as a stand-alone camera (instant photography camera), the present invention is not limited to this.

Please refer to FIG. 2, which is a schematic partial top view of the optical recording device 100 in some embodiments of the present invention. In some embodiments of the present invention, the plurality of light-emitting units 110 are respectively located above the plurality of light-transmitting structures 131, and the vertical projections generated by the plurality of light-emitting units 110 on the corresponding ones of the plurality of light-transmitting structures 131 are located on the plurality of light-transmitting structures 131. The boundary 131E of the structure 131 is within or aligned with the boundary 131E. Therefore, from FIG. 2, the vertical projection of the light-emitting unit 110 on the light-transmitting structure 131 does not exceed the boundary 131E of the light-transmitting structure 131. In other words, the vertical projection described does not overlap with the light absorbing structure 133, but the invention is not limited to this.

Please refer to FIG. 1 and FIG. 4. FIG. 4 is a side view of the light guide layer 130a in some other embodiments of the present invention. The light guide layer 130a in FIG. 4 can replace the light guide layer 130 in FIG. The light-transmitting structure 131a and the light-absorbing structure 133a of the light guide layer 130a are arranged alternately and closely along the lateral direction. Specifically, the light-transmitting structure 131a has a trapezoidal cross-section with a narrow top and a wide bottom, and the light-absorbing structure 133a has a trapezoidal cross-section with a wide top and a narrow bottom. Thereby, the light-transmitting structure 131a and the light-absorbing structure 133a can be arranged laterally and closely, and the photosensitive medium 150 can receive the light L emitted by the light-emitting unit 110 through the light-guiding layer 130a, and the light-guiding layer 130a is brought to the optical recording device 100 Excellent image recording function and used to reproduce images clearly.

In addition, a plurality of light emitting units 110 are located above the upper end 130x of the light guide layer 130a, and the photosensitive medium 150 is located below the lower end 130y of the light guide layer 130a, wherein the upper end 130x is an end of the light guide layer 130a adjacent to the light emitting unit 110 , The lower end 130y is the other end of the light guide layer 130a adjacent to the photosensitive medium 150, and the upper end 130x and the lower end 130y are opposite ends of the light guide layer 130a, respectively.

Please refer to FIG. 1 and FIG. 5. FIG. 5 is a side view of the upper light guide layer 130b and the lower light guide layer 130c stacked vertically in other embodiments of the present invention, in which the upper light guide layer 130b and the lower light guide layer 130c in FIG. The lower light guide layer 130c can replace the light guide layer 130 in FIG. In some embodiments of the present invention, the upper light guide layer 130b is located above the lower light guide layer 130c, and the upper light guide layer 130b has a plurality of light-transmitting structures 131b and a plurality of light-absorbing structures 133b alternately arranged along the lateral direction. The light layer 130c has a plurality of light-transmitting structures 131c and a plurality of light-absorbing structures 133c alternately arranged along the lateral direction, and the light-transmitting structures 131b and the light-transmitting structures 131c have trapezoidal cross-sections. In addition, the plurality of light-transmitting structures 131b of the upper light guide layer 130b are respectively disposed above the plurality of light-transmitting structures 131c of the lower light guide layer 130c. Another transparent substrate 140 of the optical recording device 100 may be sandwiched between the upper light guide layer 130b and the lower light guide layer 130c. In addition, the bottom side of the trapezoidal cross-section of the light-transmitting structure 131b is parallel to the bottom side of the trapezoidal cross-section of the light-transmitting structure 131c, but the present invention is not limited thereto.

Specifically, the trapezoidal cross-section of the light-transmitting structure 131b and the trapezoidal cross-section of the light-transmitting structure 131c both have the characteristics of a narrow top and a wide cross-section. The length of the lower base of the light-transmitting structure 131c is smaller than the length of the lower base of the trapezoidal section of the light-transmitting structure 131c. In some embodiments of the present invention, the length of the lower base of the trapezoidal section of the light-transmitting structure 131c is less than or equal to the length of the upper base of the trapezoidal section of the light-transmitting structure 131c, but the present invention is not limited thereto. Therefore, the trapezoidal cross-section of the light-transmitting structure 131b and the trapezoidal cross-section of the lower light-transmitting structure 131c together form a cross-sectional feature with a narrow upper part and a lower width. Through the above-mentioned structural design, the concentration of light L passing through the upper light guide layer 130b and the lower light guide layer 130c can be adjusted.

In some embodiments of the present invention, the light absorbing structure 133b and the light absorbing structure 133c have a trapezoidal cross section, and the trapezoidal cross section of the light absorbing structure 133b and the trapezoidal cross section of the light absorbing structure 133c have the characteristics of a wide upper section and a narrow lower section. Specifically, the bottom side of the trapezoidal cross-section of the light absorbing structure 133b is parallel to the bottom side of the trapezoidal cross-section of the light absorbing structure 133c. In addition, the length of the upper base of the trapezoidal section of the light absorbing structure 133b is greater than the length of the lower base of the trapezoidal section of the light absorbing structure 133b, and the length of the upper base of the trapezoidal section of the light absorbing structure 133c is greater than that of the light absorbing structure 133c. The length of the bottom side of the trapezoidal section. In some embodiments of the present invention, the length of the lower base of the trapezoidal section of the light absorbing structure 133b is greater than or equal to the length of the upper base of the trapezoidal section of the light absorbing structure 133c, but the present invention is not limited thereto.

Please refer to FIG. 1 and FIG. 6. FIG. 6 is a side view of the upper light guide layer 130d and the lower light guide layer 130e stacked vertically in some other embodiments of the present invention. The upper light guide layer 130d and the lower light guide layer 130e in FIG. The lower light guide layer 130e can replace the light guide layer 130 in FIG. In some embodiments of the present invention, the upper light guide layer 130d is located above the lower light guide layer 130e, and the upper light guide layer 130d has a plurality of light-transmitting structures 131d and a plurality of light-absorbing structures 133d alternately arranged along the lateral direction, and the lower The light guide layer 130e has a plurality of light-transmitting structures 131e and a plurality of light-absorbing structures 133e alternately arranged along the lateral direction. In addition, the plurality of light-transmitting structures 131d of the upper light guide layer 130d are respectively disposed above the plurality of light-transmitting structures 131e of the lower light guide layer 130e. The light-transmitting structure 131d and the light-transmitting structure 131e have rectangular cross-sections, and the long sides of the rectangular cross-sections of the light-transmitting structure 131d and the light-transmitting structure 131e extend along the longitudinal direction. One short side of the rectangular cross-section of the light structure 131e. In this way, the rectangular cross section of the light-transmitting structure 131d and the rectangular cross-section of the lower light-transmitting structure 131e jointly form a cross-sectional feature with a narrow top and a wide bottom. Thereby, the light-transmitting structure 131d and the light-transmitting structure 131e can jointly adjust the concentration of light L passing through the upper light guide layer 130d and the lower light guide layer 130e. In addition, another transparent substrate 140 of the optical recording device 100 can be sandwiched between the upper light guide layer 130d and the lower light guide layer 130e. In addition, the length of the short side of the rectangular cross-section of the light-transmitting structure 131d is less than the length of the short side of the rectangular cross-section of the light-transmitting structure 131e, and the length of the long side of the rectangular cross-section of the light-transmitting structure 131d is approximately equal to that of the rectangular cross-section of the light-transmitting structure 131e. The length of the long side, but the present invention is not limited to this.

In some embodiments of the present invention, the plurality of light absorption structures 133d are respectively located above the plurality of light absorption structures 133e, the light absorption structure 133d and the light absorption structure 133e have a rectangular cross section, and the light absorption structure 133d and the light absorption structure 133e have a rectangular cross section. The long side of the light-absorbing structure 133d extends in the longitudinal direction, and the short side of the rectangular cross-section of the light-absorbing structure 133d is parallel to the short side of the rectangular cross-section of the light-absorbing structure 133e. The length of the short side of the rectangular section, the length of the long side of the rectangular section of the light absorbing structure 133d is approximately equal to the length of the short side of the rectangular section of the light absorbing structure 133e, whereby the rectangular section of the light absorbing structure 133d and the light absorbing structure 133e The rectangular cross-sections collectively form a cross-sectional feature that is wide at the top and narrow at the bottom, but the present invention is not limited to this.

Please refer to FIG. 7, which is a side view of the upper light guide layer 130f and the lower light guide layer 130g stacked vertically in some other embodiments of the present invention. In some embodiments of the present invention, the upper light guide layer 130f is located above the lower light guide layer 130g, and the upper light guide layer 130f has a plurality of light-transmitting structures 131f and a plurality of light-absorbing structures 133f alternately arranged along the lateral direction. The light layer 130g has a plurality of light-transmitting structures 131g and a plurality of light-absorbing structures 133g alternately arranged along the lateral direction, wherein the plurality of light-transmitting structures 131f are respectively located above the plurality of light-transmitting structures 131g, and the light-transmitting structures 131f have a trapezoidal cross-section. The light-transmitting structure 131g has a rectangular cross section. In some embodiments of the present invention, the bottom side of the trapezoidal cross-section of the light-transmitting structure 131f is parallel to the short side of the rectangular cross-section of the light-transmitting structure 131g, and the lower bottom side of the trapezoidal cross-section of the light-transmitting structure 131f is adjacent and parallel to the transparent structure. One short side of the rectangular cross-section of the light structure 131g. The length of the lower base of the trapezoidal cross-section of the light-transmitting structure 131f is less than or equal to the length of the short side of the rectangular cross-section of the light-transmitting structure 131g, whereby the trapezoidal cross-section of the light-transmitting structure 131f and the rectangular cross-section of the light-transmitting structure 131g together form an upper narrow Lower wide section features. The photosensitive medium 150 can receive the light L emitted by the light-emitting unit 110 and pass through the upper light guide layer 130f and the lower light guide layer 130g, and adjust the concentration of the light L passing through the upper light guide layer 130f and the lower light guide layer 130g, optically record The device 100 can further record and reproduce images clearly, but the invention is not limited to this.

In some embodiments of the present invention, the plurality of light absorption structures 133f are respectively located above the plurality of light absorption structures 133g, the light absorption structure 133f has a trapezoidal cross section, and the light absorption structure 133g has a rectangular cross section, and the light absorption structure 133f has a trapezoidal cross section. The lower base of the light absorbing structure 133g is parallel and adjacent to a short side of the rectangular cross section of the light absorbing structure 133g, the upper base of the trapezoidal section of the light absorbing structure 133f has a longer length than the lower base of the trapezoidal section of the light absorbing structure 133f, and The length of the lower base of the trapezoidal section of the light absorbing structure 133f is greater than or equal to the length of the shorter side of the rectangular section of the light absorbing structure 133g, so the trapezoidal section of the light absorbing structure 133f and the rectangular section of the light absorbing structure 133g together form the upper and lower sides Narrow cross-sectional characteristics, but the present invention is not limited to this. In some other embodiments of the present invention, the bottom side of the trapezoidal cross section of the light absorbing structure 133f is parallel and adjacent to a long side of the rectangular cross section of the light absorbing structure 133g.

In summary, the light guide layer of the present invention has a plurality of light-transmitting structures and a plurality of light-absorbing structures alternately arranged. Since the light passing through the light-guide layer exceeding a specific angle will be absorbed by the light-absorbing structure, it passes The light traveling angle of the light-transmitting structure is concentrated to facilitate the photosensitive medium to receive light, record images, and improve imaging quality.

The different embodiments of the present invention have been described above, and it should be understood that the different embodiments are presented only as examples and not as limitations. Without departing from the spirit and scope of the present invention, many changes can be made to the embodiments of the present disclosure based on the disclosure herein. Therefore, the breadth and scope of the present invention should not be limited by the above-described embodiments.

100: Optical recording device 110: light-emitting unit 110R: Red light source 110G: Green light source 110B: Blue light source 130, 130a: light guide layer 130b, 130d, 130f: upper light guide layer 130c, 130e, 130g: lower light guide layer 130x: upper end 130y: bottom 131, 131a, 131b, 131c, 131d, 131e: transparent structure 131W, 133W: width 131M, 133M: longitudinal center axis 133, 133a, 133b, 133c, 133d: light absorption structure 140: Transparent substrate 150: photosensitive medium 151B: Blue developer layer 151R: Red developer layer 151Y: Yellow developer layer 153B: Blue silver salt layer 153G: Green light silver salt layer 153R: Red light silver salt layer H1, H2: vertical height L: light W1: distance θ: Angle

In order to achieve the above advantages and features, the principles briefly described above will be explained in more detail with reference to the embodiments, and the specific embodiments are shown in the accompanying drawings. These drawings only exemplarily describe the invention, and therefore do not limit the scope of the invention. The principle of the present invention will be clearly explained through the drawings, and additional features and details will be fully described, among which: Figure 1 shows a schematic side view of an optical recording device according to one or more embodiments of the present invention; Figure 2 is a schematic top view of part of the optical recording device in Figure 1; Figure 3 is a schematic diagram of the photosensitive medium structure of the optical recording device in Figure 1; FIG. 4 shows a schematic side view of the light guide layer of the optical recording device according to different embodiments; and 5 to 7 show schematic side views of the upper light guide layer and the lower light guide layer of the optical recording device according to different embodiments.

Domestic deposit information (please note in the order of deposit institution, date and number) without Foreign hosting information (please note in the order of hosting country, institution, date, and number) without

100: Optical recording device

110: light-emitting unit

110R: Red light source

110G: Green light source

110B: Blue light source

130: light guide layer

130x: upper end

130y: bottom

131: light transmission structure

H1, H2: height

131W: width

131M, 133M: longitudinal center axis

133: light absorbing structure

133W: width

140: Transparent substrate

150: photosensitive medium

L: light

W1: distance

θ: Angle

Claims (10)

An optical recording device, including: At least one light guide layer, including: A plurality of light-transmitting structures; and A plurality of light absorbing structures are arranged alternately with the light-transmitting structures immediately and laterally; A plurality of light-emitting units are respectively disposed on the light-transmitting structures of the at least one light guide layer, and the light-emitting units are used for emitting light at least toward the corresponding light-transmitting structures; and The photosensitive medium is arranged under the at least one light guide layer, and the photosensitive medium is used for receiving the light emitted by the light emitting units through the at least one light guide layer. The optical recording device according to claim 1, wherein the light-transmitting structures have cross-sectional characteristics with a narrow top and a wide bottom. The optical recording device according to claim 1, wherein the light-transmitting structures have a trapezoidal cross-section or a rectangular cross-section. The optical recording device according to claim 1, wherein the optical recording device further comprises two transparent substrates, and the at least one light guide layer is sandwiched between the two transparent substrates. The optical recording device of claim 1, wherein the longitudinal height of the light-transmitting structures is H1, and the longitudinal center axis of the two adjacent light-absorbing structures is separated by a distance of W1, wherein H1/W1 is between 0.1 and Between 0.15. The optical recording device according to claim 1, wherein the light emitted by the light-emitting units passing through the at least one light guide layer has a maximum divergence angle of 60 degrees to 120 degrees. The optical recording device according to claim 1, wherein the light-transmitting structures are cylinders, cones, square cylinders or polygonal cylinders. The optical recording device according to claim 1, wherein the at least one light guide layer includes an upper light guide layer and a lower light guide layer stacked longitudinally, wherein the light-transmitting structures of the upper light guide layer are respectively disposed on the lower Above the light-transmitting structures of the light guide layer. The optical recording device according to claim 8, wherein the light-transmitting structures of the upper light guide layer have rectangular or trapezoidal cross-sections, and the light-transmitting structures of the lower light guide layer have rectangular or trapezoidal cross-sections. The optical recording device according to claim 8, wherein the light-transmitting structures of the upper light guide layer and the light-transmitting structures of the lower light guide layer respectively form a cross-sectional feature with a narrow top and a wide bottom.

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