CN209879049U - Flat lens for imaging - Google Patents
Flat lens for imaging Download PDFInfo
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- CN209879049U CN209879049U CN201920737421.0U CN201920737421U CN209879049U CN 209879049 U CN209879049 U CN 209879049U CN 201920737421 U CN201920737421 U CN 201920737421U CN 209879049 U CN209879049 U CN 209879049U
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Abstract
The utility model discloses a plate lens for formation of image, aim at solve current plate lens appear that virtual image light beam overlaps with the formation of image light beam and lead to the problem that user experience reduces, it includes first glass window, second glass window, first single row multirow optical waveguide array and with second single row multirow optical waveguide array, wherein, first single row multirow optical waveguide array and second single row multirow optical waveguide array comprise a plurality of optical waveguide respectively and first single row multirow optical waveguide array and second single row multirow optical waveguide array mutually correspond the waveguide direction mutually perpendicular of part; at least one filter band is arranged on the light passing surface of each optical waveguide close to the object space light source side. The utility model discloses a set up the filter zone in the optical waveguide, carry out the filtering to odd times reflection ghost light, and then avoided virtual image light beam and formation of image light beam to overlap, promoted user's watching experience to a certain extent.
Description
Technical Field
The utility model relates to an optics field, particularly, the utility model relates to a dull and stereotyped lens for formation of image.
Background
With the development of imaging display technology, the requirements for imaging characteristics are continuously improved, and on one hand, higher resolution is required, so that the requirement for small distortion is met while the definition of an observed picture is ensured.
The utility model discloses a chinese utility model patent of application number 201721714921.X discloses a single multirow equivalence negative refraction index plate lens, and it includes that two sets of optical waveguide arrays and optical waveguide array correspond the quadrature between the optical waveguide of part each other and arrange, the utility model discloses a further improvement has been carried out on this utility model patent's basis.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the overlapping of virtual image light beam and image forming light beam leads to user experience to reduce in current flat lens, the utility model provides a flat lens that is used for formation of image of virtual image light beam and non-overlapping of image forming light beam.
In order to achieve the above object, the present invention provides a flat lens for imaging, which includes a first glass window, a second glass window, a first single-row multi-row optical waveguide array, and a second single-row multi-row optical waveguide array adapted to the first single-row multi-row optical waveguide array and having the same refractive index, wherein the first glass window and the second glass window are disposed opposite to each other and have two optical surfaces; the first single-column multi-row optical waveguide array is bonded with the first glass window, and the second single-column multi-row optical waveguide array is bonded with the second glass window through a second adhesive; the first single-row multi-row optical waveguide array and the second single-row multi-row optical waveguide array are respectively composed of a plurality of optical waveguides which are obliquely arranged and have single-row multi-row cross sections and rectangular cross sections, and the waveguide directions of the mutually corresponding parts of the first single-row multi-row optical waveguide array and the second single-row multi-row optical waveguide array are mutually vertical; two interface surfaces are arranged between the optical waveguide and the optical waveguide adjacent to the optical waveguide, and the interface surfaces are jointed by a first adhesive; at least one filter band is arranged on a light passing surface of each optical waveguide close to the object light source side, the length of each filter band is equal to that of the corresponding optical waveguide, and the optical waveguide is a rectangular waveguideWidth H of filter band02The following conditions are satisfied:
in the formula, H01Is the cross-sectional length of the optical waveguide cross-section; theta0An incident angle when the object light source is incident on the flat lens for imaging, n is a refractive index of the first single-row multi-row optical waveguide array or the second single-row multi-row optical waveguide array, and n is>1.4; Δ θ is a preset deghosting angular width.
Preferably, the filter band includes an aluminum reflective film filter band, the aluminum reflective film filter band is disposed on the outer side of the lower portion of a light-passing surface of the optical waveguide, the lower portion being close to the object-side light source side, the length of the aluminum reflective film filter band is equal to the length of the optical waveguide, and the width of the aluminum reflective film filter band is calculated according to formula (1).
Preferably, the filter bands include a first aluminum reflective film filter band disposed on the outer side of the lower portion of the light-passing surface of the optical waveguide close to the object light source side and a second aluminum reflective film filter band disposed on the outer side of the upper portion of the light-passing surface of the optical waveguide close to the object side, the lengths of the first aluminum reflective film filter band and the second aluminum reflective film filter band are equal to the length of the optical waveguide, and the width of the first aluminum reflective film filter band and the width of the second aluminum reflective film filter band are calculated by formula (1) respectively.
Preferably, the lower part outside of the light passing surface close to the object side light source side on the optical waveguide is provided with a filtering groove with an inverted L-shaped section, the filtering band comprises a frosted extinction printing ink filtering band, the frosted extinction printing ink filtering band comprises a frosted surface attached to the outer surface of the filtering groove and extinction printing ink arranged on one side of the frosted surface far away from the optical waveguide, the length of the frosted extinction printing ink filtering band is equal to that of the optical waveguide, and the width of the frosted extinction printing ink filtering band is obtained through calculation of a formula (1).
Preferably, a lower through groove with an inverted L-shaped cross section is formed in the outer side of the lower portion of the light passing surface of the optical waveguide, which is close to the object light source side, an upper through groove with an L-shaped cross section is formed in the outer side of the upper portion of the light passing surface of the optical waveguide, which is close to the object light source side, the filter band comprises a first frosted extinction ink filter band attached to the outer surface of the lower through groove and a second frosted extinction ink filter band attached to the outer surface of the upper through groove, and the first frosted extinction ink filter band and the second frosted extinction ink filter band respectively comprise a frosted surface and extinction ink arranged on one side of the frosted surface, which is far away from the optical waveguide;
the lengths of the first frosted extinction printing ink filter band and the second frosted extinction printing ink filter band are equal to the length of the optical waveguide, and the width of the first frosted extinction printing ink filter band and the width of the second frosted extinction printing ink filter band are obtained through calculation according to a formula (1).
Preferably, the first adhesive is photosensitive adhesive or heat-sensitive adhesive and the thickness of the first adhesive is more than 0.001 mm; the second adhesive is photosensitive adhesive or thermosensitive adhesive.
Preferably, the cross section of the first single-row multi-row optical waveguide array is square, the first single-row multi-row optical waveguide array comprises two triangular optical waveguides arranged at two ends of one diagonal line of the first single-row multi-row optical waveguide array, two right-angle special-shaped optical waveguides arranged on the other diagonal line of the first single-row multi-row optical waveguide array, and two trapezoid optical waveguide arrays arranged between the triangular optical waveguides and the special-shaped optical waveguides, wherein the trapezoid optical waveguide array comprises at least one trapezoid optical waveguide; the cross section widths and the cross section lengths of the cross sections of the triangular optical waveguide, the special-shaped optical waveguide and the trapezoidal optical waveguide are equal, the length of the triangular optical waveguide is smaller than that of the trapezoidal optical waveguide in the trapezoidal optical waveguide array, and the length of the trapezoidal optical waveguide is smaller than that of the special-shaped optical waveguide; the triangular optical waveguide, the special-shaped optical waveguide and the trapezoidal optical waveguide are arranged at an angle theta below the left side.
Preferably, the angle θ ranges from 35 ° to 65 °.
Preferably, the triangular optical waveguide, the shaped optical waveguide and the trapezoidal optical waveguide have wide cross-sectionsDegree W01A cross-sectional length of H01And both satisfy the following conditions: 0.1mm<W01<5mm， 0.1mm<H01<5mm。
Compared with the prior art, the utility model relates to a dull and stereotyped lens for formation of image has following beneficial effect:
the utility model relates to a plate lens for formation of image is through setting up the filtering zone in the optical waveguide, carries out the filtering to odd times reflection ghost light, and then has avoided virtual image light beam and formation of image light beam to overlap, has promoted user's viewing experience to a certain extent.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of an overall structure of a flat lens for imaging according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the structure at S in FIG. 1;
fig. 3 is a schematic structural diagram of a first single-row multi-row optical waveguide array with a square cross section in a flat lens for imaging according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of optical waveguide length in a first single-row multi-row optical waveguide array with a square cross section in a flat lens for imaging according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a cross-sectional width and a cross-sectional length of an optical waveguide in a first single-row multi-row optical waveguide array with a square cross-section in a flat lens for imaging according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a flat lens for imaging according to an embodiment of the present invention, in which an aluminum reflective film filter band is disposed below a light-guide light-passing surface;
FIG. 7 is a schematic cross-sectional view of FIG. 6;
fig. 8 is a schematic structural diagram of an aluminum reflective film filter band disposed on the upper and lower portions of the light-guide light-passing surface in a flat lens for imaging according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of FIG. 8;
fig. 10 is a schematic structural diagram of a flat lens for imaging according to an embodiment of the present invention, in which a frosted extinction ink filter band is disposed below a light-guide light-passing surface of the flat lens;
FIG. 11 is an enlarged view of the structure at A in FIG. 10;
FIG. 12 is a schematic cross-sectional view of FIG. 11;
fig. 13 is a schematic structural diagram of a flat lens for imaging according to an embodiment of the present invention, in which frosted extinction ink filter bands are disposed on the upper and lower portions of the light-guide light-passing surface;
FIG. 14 is a schematic cross-sectional view of FIG. 13;
fig. 15 is a schematic diagram of an intersection structure of two optical waveguides respectively provided with a filter band in a flat lens for imaging according to an embodiment of the present invention;
fig. 16 is an equivalent structure diagram of a light beam passing through the crossing region of fig. 15.
The labels in the figures illustrate:
20. a first glass window; 40. a second glass window; 60. a first adhesive; 80. a second adhesive;
1. a first single-column multi-row optical waveguide array; 3. a second single-column multi-row optical waveguide array;
11. a triangular optical waveguide; 13. a trapezoidal optical waveguide; 15. a profiled optical waveguide;
100. an aluminum reflective film filter band; 2001. a first aluminum reflective film filter band; 2003. a second aluminum reflective film filter band;
300. filtering the band by using frosted extinction printing ink; 3001. sanding surface; 3003. matting ink; 1000. passing through a groove;
4001. a first frosted matte ink filter band; 4003. a second matte ink filter band.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1-2, a flat lens for imaging according to an embodiment of the present invention includes a first glass window 20, a second glass window 40, a first single-row multi-row optical waveguide array 1, and a second single-row multi-row optical waveguide array 3 adapted to the first single-row multi-row optical waveguide array 1 and having the same refractive index, wherein the first glass window 20 and the second glass window 40 are disposed opposite to each other and have two optical surfaces; the first single-column multi-row optical waveguide array 1 is connected with the first glass window 20, and the second single-column multi-row optical waveguide array 3 is connected with the second glass window 40 through a second adhesive 80; the first single-column multi-row optical waveguide array 1 and the second single-column multi-row optical waveguide array 3 are respectively composed of a plurality of optical waveguides which are obliquely arranged and have single-column multi-row cross sections in a rectangular shape, and the waveguide directions of the corresponding parts of the first single-column multi-row optical waveguide array 1 and the second single-column multi-row optical waveguide array 3 are mutually vertical; two interfaces exist between the optical waveguide and the optical waveguide adjacent to the optical waveguide, and the interfaces are jointed by a first adhesive 60; at least one filter band is arranged on the light passing surface of each optical waveguide close to the object light source, the length of the filter band is equal to that of the corresponding optical waveguide, and the width H of the filter band02The following conditions are satisfied:
in the formula, H01Is the cross-sectional length of the optical waveguide cross-section; theta0N is the refractive index of the first single-row multi-row optical waveguide array 1 or the second single-row multi-row optical waveguide array 3 and n is the incident angle of the flat lens for imaging>1.4; Δ θ is a preset deghosting angular width.
In some embodiments, Δ θ is preferentially chosen such that the ghost-free angular range is greater than θ0- Δ θ is less than θ0。
Considering that the first single-row multi-row optical waveguide array 1 and the second single-row multi-row optical waveguide array 3 have substantially the same structure except for the different oblique directions, the embodiment of the present invention is explained herein by taking the first single-row multi-row optical waveguide array 1 as an example.
Referring to fig. 3-5, fig. 3 is a schematic structural diagram of a first single-row multi-row optical waveguide array 1 with a square cross section, and as can be seen from fig. 3, the first single-row multi-row optical waveguide array 1 includes two triangular optical waveguides 11 disposed at two ends of one diagonal of the first single-row multi-row optical waveguide array 1, a special-shaped optical waveguide 15 including two right angles on the other diagonal of the first single-row multi-row optical waveguide array 1, and two trapezoidal optical waveguide arrays located between the triangular optical waveguides 11 and the special-shaped optical waveguide 15, wherein the trapezoidal optical waveguide array includes at least one trapezoidal optical waveguide 13; the cross section widths and the cross section lengths of the cross sections of the triangular optical waveguide 11, the special-shaped optical waveguide 15 and the trapezoidal optical waveguide 13 are equal, the length of the triangular optical waveguide 11 is smaller than that of the trapezoidal optical waveguide 13 in the trapezoidal optical waveguide array, and the length of the trapezoidal optical waveguide 13 is smaller than that of the special-shaped optical waveguide 15; the triangular light guide 11, the shaped light guide 15, and the trapezoidal light guide 13 are disposed at an angle of θ degrees below the left.
Preferably, θ ranges from 35 ° to 65 °.
Illustratively, as shown in FIGS. 3 to 5, the triangular optical waveguide 11, the shaped optical waveguide 15, and the trapezoidal optical waveguide 13 have a cross-sectional width W in cross section01A cross-sectional length of H01The triangular optical waveguide 11, the shaped optical waveguide 15, and the trapezoidal optical waveguide 13 have a length L. As can be seen from fig. 6, the optical waveguide lengths L are not equal, wherein the two sides are shortest and the closer to the diagonal the longer.
Preferably, the triangular optical waveguide 11, the shaped optical waveguide 15 and the trapezoidal optical waveguide 13 have a cross-sectional width W in cross section01A cross-sectional length of H01The following conditions are satisfied: 0.1mm<W01<5mm， 0.1mm<H01<5 mm. The first adhesive 60 is a photosensitive adhesive or a heat-sensitive adhesive and has a thickness greater than 0.001 mm. The second adhesive 80 is lightA heat-sensitive adhesive or a heat-sensitive adhesive.
Referring to fig. 6 and 7, in some embodiments, the filter band includes an aluminum reflective film filter band 100, the aluminum reflective film filter band 100 is disposed on the lower outer side of the light-passing surface of the optical waveguide near the object light source side, and has a length equal to the length L and a width HI of the corresponding optical waveguide02Obtain through equation (1) calculation, the embodiment of the utility model is no longer repeated here.
Referring to fig. 8 and 9, in some embodiments, the filter bands include a first aluminum reflective film filter band 2001 disposed outside a lower portion of a light-passing surface of the optical waveguide on a light source side close to an object and a second aluminum reflective film filter band 2003 disposed outside an upper portion of the light-passing surface of the optical waveguide on the light source side close to the object, the first aluminum reflective film filter band 2001 and the second aluminum reflective film filter band 2003 have a length equal to a length L of the corresponding optical waveguide, and a width HIS of the first aluminum reflective film filter band 2001 is equal to a width HIS02And width HIX of second aluminum reflective film filter strip 200302Calculate through formula (1) respectively and obtain, the embodiment of the utility model provides a no longer describe herein.
Referring to fig. 10-12, in some embodiments, the light guide has a through groove 1000 with an inverted "L" shaped cross section on the outer side of the lower portion of the light passing surface near the object light source. The filtering band comprises a frosted extinction ink filtering band 300, the frosted extinction ink filtering band 300 comprises a frosted surface 3001 attached to the outer surface of the filter groove 1000 and extinction ink 3003 arranged on one side, far away from the optical waveguide, of the frosted surface 3001, the length of the frosted extinction ink filtering band 300 is equal to the length L of the corresponding optical waveguide, and the width HE of the frosted extinction ink filtering band is equal to the width HE of the corresponding optical waveguide02Obtain through equation (1) calculation, the embodiment of the utility model is no longer repeated here.
Referring to fig. 13-14, in some embodiments, a lower through groove with an inverted "L" shaped cross section is formed on the outer side of the lower portion of the light-passing surface of the optical waveguide, which is close to the object light source, and an upper through groove with an "L" shaped cross section is formed on the outer side of the upper portion of the light-passing surface of the optical waveguide, which is close to the object light source. The filter band comprises a first frosted extinction ink filter band 4001 attached to the outer surface of the lower through groove and a second frosted extinction ink filter band attached to the outer surface of the upper through grooveThe band 4003, wherein the structures of the first frosted extinction ink filter band 4001 and the second frosted extinction ink filter band 4003 are the same as the structure of the frosted extinction ink filter band 300; the lengths of the first frosted extinction ink filter band 4001 and the second frosted extinction ink filter band 4003 are equal to the length L of the corresponding optical waveguide, and the width HES of the first frosted extinction ink filter band 4001 is equal to the length L of the corresponding optical waveguide02And width HEX of second matte ink filter band 400302Calculate through formula (1) respectively and obtain, the embodiment of the utility model provides a no longer describe herein.
Referring to fig. 15 to 16, in order to further understand the present invention, a schematic optical path diagram of a flat lens for imaging is briefly described below, wherein it is assumed that a filter band is disposed in an optical waveguide only at the lower outer side of a light passing surface near an object light source side:
it can be seen from FIG. 15 that the overlap of the two optical waveguides is equivalent to the pattern shown in FIG. 16, with ghost rays having an angle of incidence with respect to normal equal to θ0The angle can be with odd reflection ghost light complete filtering through the filtering area, and then has avoided virtual image light beam and formation of image light beam to overlap.
Compared with the prior art, the embodiment of the utility model provides a flat lens for formation of image has following beneficial effect:
the embodiment of the utility model provides a plate lens for formation of image is through setting up the filtering zone in the optical waveguide, carries out the filtering to odd times reflection ghost light, and then has avoided virtual image light beam and formation of image light beam to overlap, has promoted user's viewing experience to a certain extent.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The flat lens for imaging is characterized by comprising a first glass window, a second glass window, a first single-column multi-row optical waveguide arrayThe first glass window and the second glass window are oppositely arranged and are provided with two optical surfaces; the first single-column multi-row optical waveguide array is bonded with the first glass window, and the second single-column multi-row optical waveguide array is bonded with the second glass window through a second adhesive; the first single-row multi-row optical waveguide array and the second single-row multi-row optical waveguide array are respectively composed of a plurality of optical waveguides which are obliquely arranged and have single-row multi-row cross sections and rectangular cross sections, and the waveguide directions of the mutually corresponding parts of the first single-row multi-row optical waveguide array and the second single-row multi-row optical waveguide array are mutually vertical; two interface surfaces are arranged between the optical waveguide and the optical waveguide adjacent to the optical waveguide, and the interface surfaces are jointed by a first adhesive; at least one filter band is arranged on a light passing surface of each optical waveguide close to the object light source side, the length of each filter band is equal to that of the corresponding optical waveguide, and the width H of each filter band is equal to that of each optical waveguide02The following conditions are satisfied:
in the formula, H01Is the cross-sectional length of the optical waveguide cross-section; theta0An incident angle when the object light source is incident on the flat lens for imaging, n is a refractive index of the first single-row multi-row optical waveguide array or the second single-row multi-row optical waveguide array, and n is>1.4; Δ θ is a preset deghosting angular width.
2. The flat lens for imaging as claimed in claim 1, wherein the filter band comprises an aluminum reflective film filter band, the aluminum reflective film filter band is disposed on a lower outer side of a light passing surface of the optical waveguide on a side close to the object light source, a length of the aluminum reflective film filter band is equal to a length of the optical waveguide, and a width of the aluminum reflective film filter band is calculated by formula (1).
3. The flat lens for imaging as claimed in claim 1, wherein the filter bands include a first aluminum reflective film filter band disposed outside a lower portion of a light passing surface of the optical waveguide on a side close to the object side light source and a second aluminum reflective film filter band disposed outside an upper portion of the light passing surface of the optical waveguide on a side close to the object side, lengths of the first aluminum reflective film filter band and the second aluminum reflective film filter band are equal to a length of the optical waveguide, and a width of the first aluminum reflective film filter band and a width of the second aluminum reflective film filter band are respectively calculated by formula (1).
4. The plate lens for imaging according to claim 1, wherein a through groove having an inverted "L" shaped cross section is formed on an outer side of a lower portion of a light passing surface of the optical waveguide on a side close to the object side light source, the filter band includes a frosted matte ink filter band including a frosted surface attached to an outer surface of the through groove and a matte ink disposed on a side of the frosted surface away from the optical waveguide, a length of the frosted matte ink filter band is equal to a length of the optical waveguide, and a width of the frosted matte ink filter band is calculated by formula (1).
5. A plate lens for image formation as claimed in claim 1, wherein a lower through groove having an inverted "L" shaped cross section is formed on an outer side of a lower portion of the light passing surface of the optical waveguide on the side closer to the object light source, an upper through groove having an "L" shaped cross section is formed on an outer side of an upper portion of the light passing surface of the optical waveguide on the side closer to the object light source, the filter band includes a first frosted matte ink filter band attached to an outer surface of the lower through groove and a second frosted matte ink filter band attached to an outer surface of the upper through groove, and the first frosted matte ink filter band and the second frosted matte ink filter band respectively include a frosted surface and matte ink disposed on a side of the frosted surface remote from the optical waveguide;
the lengths of the first frosted extinction printing ink filter band and the second frosted extinction printing ink filter band are equal to the length of the optical waveguide, and the width of the first frosted extinction printing ink filter band and the width of the second frosted extinction printing ink filter band are obtained through calculation according to a formula (1).
6. A flat lens for image formation as claimed in claim 1, wherein said first adhesive is a photosensitive adhesive or a heat-sensitive adhesive and has a thickness of more than 0.001 mm; the second adhesive is photosensitive adhesive or thermosensitive adhesive.
7. The plate lens for imaging according to claim 1, wherein the first single-row multi-row optical waveguide array has a square cross section, and the first single-row multi-row optical waveguide array comprises two triangular optical waveguides disposed at both ends of one diagonal line of the first single-row multi-row optical waveguide array, a shaped optical waveguide including two right angles on the other diagonal line of the first single-row multi-row optical waveguide array, and two trapezoidal optical waveguide arrays disposed between the triangular optical waveguides and the shaped optical waveguides, wherein the trapezoidal optical waveguide array comprises at least one trapezoidal optical waveguide; the cross section widths and the cross section lengths of the cross sections of the triangular optical waveguide, the special-shaped optical waveguide and the trapezoidal optical waveguide are equal, the length of the triangular optical waveguide is smaller than that of the trapezoidal optical waveguide in the trapezoidal optical waveguide array, and the length of the trapezoidal optical waveguide is smaller than that of the special-shaped optical waveguide; the triangular optical waveguide, the special-shaped optical waveguide and the trapezoidal optical waveguide are arranged at an angle theta below the left side.
8. A flat lens for imaging as claimed in claim 7, wherein the θ angle ranges from 35 ° to 65 °.
9. The plate lens for imaging according to claim 7, wherein a cross-sectional width of the triangular optical waveguide, the shaped optical waveguide, and the trapezoidal optical waveguide is W01A cross-sectional length of H01And both satisfy the following conditions: 0.1mm<W01<5mm，0.1mm<H01<5mm。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920737421.0U CN209879049U (en) | 2019-05-21 | 2019-05-21 | Flat lens for imaging |
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| CN201920737421.0U CN209879049U (en) | 2019-05-21 | 2019-05-21 | Flat lens for imaging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208902A (en) * | 2019-05-21 | 2019-09-06 | 上海先研光电科技有限公司 | A kind of flat-plate lens for imaging |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208902A (en) * | 2019-05-21 | 2019-09-06 | 上海先研光电科技有限公司 | A kind of flat-plate lens for imaging |
| CN110208902B (en) * | 2019-05-21 | 2024-06-18 | 安徽省东超科技有限公司 | Flat lens for imaging |
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Effective date of registration: 20220927 Address after: Floor 1, building A3, chuanggu Science Park, No. 900, Wangjiang West Road, hi tech Zone, Hefei City, Anhui Province Patentee after: ANHUI EASPEED TECHNOLOGY Co.,Ltd. Address before: 2 / F, building 13, 27 Xinjinqiao Road, Pudong New Area pilot Free Trade Zone, Shanghai, 200120 Patentee before: SHANGHAI XIANYAN OPTOELECTRONIC TECHNOLOGY Co.,Ltd. |
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