WO2011040290A1 - 発光装置及びその製造方法 - Google Patents
発光装置及びその製造方法 Download PDFInfo
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- WO2011040290A1 WO2011040290A1 PCT/JP2010/066347 JP2010066347W WO2011040290A1 WO 2011040290 A1 WO2011040290 A1 WO 2011040290A1 JP 2010066347 W JP2010066347 W JP 2010066347W WO 2011040290 A1 WO2011040290 A1 WO 2011040290A1
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- base material
- light emitting
- light
- support surface
- emitting element
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0071—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for beam steering, e.g. using a mirror outside the cavity to change the beam direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
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- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
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- H—ELECTRICITY
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- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4012—Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
Definitions
- the present invention relates to a light-emitting device including a light-emitting unit including a light-emitting element and a support including a support surface that fixes and supports the light-emitting unit, and a method for manufacturing the same.
- a light emitting device configured by incorporating a light emitting element (bare chip) is used in various information processing apparatuses.
- This type of light-emitting device requires highly accurate optical axis adjustment with respect to the light-emitting element so that the optical axis of light is in an appropriate direction.
- Patent Document 1 discloses an invention related to a stage alignment apparatus.
- Patent Document 1 is not an invention relating to a light-emitting device and does not describe anything about optical axis adjustment.
- the invention described in Patent Document 1 performs alignment in the X, Y, and Z directions, but has a complicated structure and a large number of parts.
- an object of the present invention is to provide a light emitting device capable of easily and appropriately adjusting the optical axis and a method for manufacturing the same.
- the light emitting device in the present invention is A light-emitting unit including a light-emitting element, and a support including a support surface for fixing and supporting the light-emitting unit.
- the light emitting unit is located between a first base material, a second base material arranged opposite to the first base material, and between the first base material and the second base material, one of which is convex
- the curved portion is supported on the first base material side of the first base material and the second base material, the tilt adjusting portion formed with the concave portion on the other side facing the convex curved portion.
- the convex curved portion fixed in a state where the inclination of the light emitting element is adjusted by an inclination adjusting portion and a second fixing portion between the concave portions;
- the second base material is formed of a light-transmitting material, and the first fixing portion and the second fixing portion are fixed by light transmitted through the second base material. It is.
- a light emitting unit having a simple structure having a first base material, a second base material, an inclination adjusting portion, and a light emitting element and having a small number of parts can be configured.
- the position of the light emitting element can be adjusted with respect to the support surface by bringing the end face of the material into contact with the support surface, and the inclination of the light emitting element can be adjusted by sliding between the convex curved portion and the concave portion of the inclination adjustment portion. Therefore, the plurality of adjustments can be performed easily and with high accuracy.
- the interval between the end surface of the second base material and the support surface is the first fixing portion
- the interval between the convex curved portion and the concave portion is the second fixing portion
- one of the convex curved portion and the concave portion is
- the second base material is integrated with the second base material, and the second base material is formed of a light transmissive material. Therefore, each fixing part can be fixed using light transmission to the second substrate, and the fixing part can be fixed easily and reliably after the position adjustment and the inclination adjustment of the light emitting element are performed with high accuracy. can do.
- the present invention in addition to high-precision adjustment, light emission capable of easily and surely fixing without causing a surface deviation at the time of fixing after adjustment and capable of adjusting the optical axis with high accuracy in a predetermined direction.
- a device can be realized.
- the light-emitting device of the present invention is formed using a light-emitting element and can promote downsizing of the light-emitting device.
- the optical axis can be made highly accurate by using the structure of the present invention even if the lens unit and the bandpass filter incorporated in the light emitting device are not subjected to positional variations or highly accurate alignment. It is possible to adjust.
- a plurality of light emitting units are fixedly supported on the support surface, and the position of each light emitting unit is adjusted with respect to the support surface and the inclination of the light emitting element is adjusted so that the optical axes coincide with each other.
- the position of each light emitting unit is adjusted with respect to the support surface and the inclination of the light emitting element is adjusted so that the optical axes coincide with each other.
- it is. According to the present invention, it is possible to easily and accurately align the optical axes, and to realize a small light emitting device including a plurality of light emitting units.
- each fixing portion ultraviolet light is transmitted through the second base material and fixed by an ultraviolet curable resin, or the second base material is irradiated with laser light to melt and fix the metal. It is preferable. As a result, surface deviation or the like hardly occurs at the time of fixing, and even after the fixing, deterioration due to a temperature change or the like hardly occurs, and each fixing portion can be fixed easily and reliably.
- a spherical portion constituting the convex curved portion is interposed between the first base material and the second base material, and the first base material and the first base material facing the spherical portion. 2
- the surface of the base material is formed with the concave portion
- the first base material is formed of a light transmissive material
- a third portion is formed between the concave portion of the first base material and the spherical portion. It is preferable that a fixing portion is formed and the third fixing portion is fixed by light transmission to the first base material. Thereby, the inclination adjustment of the light emitting element can be easily performed with high accuracy.
- the first base material is also formed of a light-transmitting material like the second base material, not only the first fixing portion and the second fixing portion but also the third fixing portion can transmit light to the first base material. By using the permeation of, it can be fixed easily and reliably.
- the convex curved portion may be integrally formed on one of the first base material and the second base material, and the concave portion may be integrally formed on the other.
- a heat radiating member is provided between the first base material and the light emitting element, and the light emitting element is placed on the surface of the heat radiating member.
- a holding plate serving as a heat radiating plate for holding the heat radiating member and the second base material or between the first base material and the second base material is provided.
- a holding plate serving as a heat radiating plate for holding the heat radiating member and the second base material or between the first base material and the second base material.
- the light-emitting device includes a plurality of light-emitting units and a support including a support surface that fixes and supports the light-emitting units.
- Each light emitting unit is located between the first base material, the second base material disposed opposite to the first base material, and between the first base material and the second base material, A convex curved portion that is supported on the first base material side of the first base material and the second base material, and an inclination adjusting portion that is formed with a concave portion on the other side facing the convex curved portion.
- the light emitting element is configured, The end surface of the second base material of each light emitting unit is brought into contact with the support surface so that the optical axis of each light emitting unit is aligned, and the position of the light emitting element of each light emitting unit is tilted.
- Each light-emitting unit is fixedly supported on the support surface in a state of being adjusted using a portion.
- each light emitting unit having a simple structure having a first base material, a second base material, an inclination adjusting portion, and a light emitting element and having a small number of parts can be configured.
- the position of the light emitting element can be adjusted with respect to the support surface by abutting the end surface of the base material against the support surface, and the tilt adjustment of the light emitting element can be performed by sliding between the convex curved portion and the concave portion of the tilt adjustment portion. Therefore, the plurality of adjustments can be performed easily and with high accuracy.
- each light emitting unit is fixedly supported on the support surface and the optical axes of the respective light emitting units coincide with each other with high accuracy.
- the present invention also relates to a method for manufacturing a light emitting device comprising: a light emitting unit; and a support having a support surface for fixing and supporting the light emitting unit.
- the light emitting unit is positioned between a first base material, a second base material formed of a light-transmitting material, the first base material and the second base material, and one is a convex curved portion.
- An inclination adjusting part formed with a concave part on the other side opposite to the convex curved part, and the light emitting element supported on the first base material side of the first base material and the second base material, And comprising While irradiating light from the light emitting unit, the end surface of the second base is brought into contact with the support surface to adjust the position with respect to the support surface, and the tilt adjustment unit is used to adjust the tilt of the light emitting element.
- the light is transmitted through the second base material formed of a light-transmitting material, the first fixing portion between the end surface and the support surface of the second base material, and the convex curved portion and the concave shape.
- the second fixing parts between the parts are fixed respectively.
- the position of the light emitting element can be adjusted with respect to the support surface by bringing the end surface of the second base material into contact with the support surface and sliding between the convex curved portion and the concave portion of the tilt adjustment portion.
- the tilt adjustment of the light emitting element can be performed, and the plurality of adjustments can be performed easily and with high accuracy.
- each fixing portion is fixed using transmission of light to the second base material. Therefore, after the position adjustment and the inclination adjustment of the light emitting element are performed with high accuracy, each fixing portion is fixed. It can be fixed with high accuracy and ease. Further, in the present invention, each fixing portion can be securely and easily fixed without causing a problem such as a surface deviation at each fixing portion or a change in temperature after fixing.
- the present invention it is preferable to fix both the first fixing portion and the second fixing portion at the same time.
- the other adjustment can be performed to fix the other fixing portion.
- the end surface of the second substrate is brought into contact with the support surface to adjust the position relative to the support surface, and the inclination of the light emitting element is adjusted by sliding between the convex curved portion and the concave portion, Since each fixing part can be fixed, simple and highly accurate optical axis adjustment can be performed.
- the other light emitting units are irradiated with light from the light emitting elements while the support is being performed. It is preferable to adjust the position relative to the surface and adjust the tilt of the light emitting element so that the optical axes of the other light emitting units coincide with the optical axis of the first light emitting unit. According to the present invention, the optical axes of the respective light emitting units can be matched easily and with high accuracy.
- an ultraviolet curable resin film or a metal film is formed on each fixing portion, and after the position adjustment with respect to the support surface and the inclination adjustment of the light emitting element are completed, the ultraviolet light is transmitted through the second base material.
- the first fixing portion and the second fixing portion are fixed by the ultraviolet curable resin film, or the first fixing portion and the second fixing portion are transmitted by transmitting light to the second base material and melting the metal film. It is preferable to fix.
- the present invention it is possible to realize a small light emitting device capable of adjusting the optical axis of the light emitting unit in a predetermined direction with high accuracy.
- FIG. 1 is a plan view of the light emitting device shown in FIG. An exploded perspective view of each light emitting unit incorporated in the light emitting device;
- the perspective view of the light source device incorporating the light-emitting device shown in FIG. Schematic diagram showing another configuration of the tilt adjustment unit,
- the perspective view of the light-emitting device of 2nd Embodiment in this invention The disassembled perspective view of the light emission unit integrated in the light-emitting device of FIG.
- FIG. 1 is a perspective view of a light emitting device according to a first embodiment of the present invention
- FIG. 2 is a side view of the light emitting device shown in FIG. 1 as viewed from the direction of arrow II
- FIG. 3 is a side view of the light emitting device shown in FIG.
- FIG. 4 is a plan view of the light-emitting device shown in FIG. 1
- FIG. 5 is an exploded perspective view of each light-emitting unit incorporated in the light-emitting device
- FIG. 6 incorporates the light-emitting device shown in FIG. It is a perspective view of a light source device.
- the X1-X2 direction and the Y1-Y2 direction indicate two directions orthogonal to each other in the horizontal plane.
- the Y1-Y2 direction is the front-rear direction in each of the light emitting units 2 to 4
- the X1-X2 direction is Left and right direction.
- the Z1-Z2 direction is the height direction.
- the light-emitting device 1 in the present embodiment includes a plurality of light-emitting units 2 to 4 and a support 5.
- each of the light emitting units 2 to 4 includes a first base material 6, a second base material 7, a spherical part (ball part) 8, a light emitting element (bare chip) 9, and a heat dissipation member 10. And a holding plate 11 and a lens portion 12.
- the number of light emitting units 2 to 4 is not limited.
- the light emitting elements (bare chips) 9 may have different wavelengths of light or the same.
- LD Laser Diode
- LED Light Emitting Diode, light emitting diode
- the like can be used.
- the light emitting element 9 is placed on the upper surface of the heat radiating member 10.
- the heat dissipating member 10 is made of AlN, for example, with a material superior in thermal conductivity as compared with the first base material 6 and the second base material 7.
- the light emitting element 9 is electrically connected to the electrode portion 13 by die bonding and wire bonding to the upper surface of the heat radiating member 10.
- the first substrate 6 and the second substrate 7 are formed of a light transmissive material.
- the first substrate 6 and the second substrate 7 are made of glass, polycarbonate resin (PC resin), polyethylene terephthalate resin (PET resin), polyethylene naphthalate resin (PEN resin), cyclic polyolefin (COP resin), polymethyl methacrylate. It is formed of a transparent substrate such as resin (acrylic) (PMMA) or a translucent substrate such as silicon.
- the 1st base material 6 is formed in the shape of a rectangular parallelepiped.
- the second base material 7 extends in parallel with the Y1-Y2 direction and faces the first base material 6 in the height direction (Z1-Z2 direction).
- a portion 7a and a tip portion 7b extending downward (Z2) from the facing portion 7a at the front (Y1) of the facing portion 7a are configured.
- the length dimension T1 of the second base material 7 in the Y1-Y2 direction is formed longer than the length dimension T2 of the first base material 6.
- a part of the tip portion 7 b of the second base material 7 is forward of the first base material 6 ( It protrudes slightly in Y1).
- the front surface 7 c of the tip 7 b of the second base material 7 is a flat surface, and the area of the front surface 7 c is larger than the area of the front surface 6 a of the first base material 6.
- the lower surface 6b of the first base material 6 and the upper surface 7d of the second base material 7 have a height when the first base material 6 and the second base material 7 are assembled, respectively.
- Concave portions 14 and 15 are formed in portions facing in the direction (Z1-Z2).
- the spherical portion 8 is assembled in a state where it is interposed between the concave portions 14 and 15 of the first base material 6 and the second base material 7.
- the inclination adjusting unit 27 is configured by the spherical portion 8 and the concave portions 14 and 15.
- the surface of the spherical portion 8 is a spherical surface having a certain predetermined radius of curvature.
- the concave portions 14 and 15 may be curved surfaces, or may be concave portions formed in, for example, a V shape other than the curved surface.
- the material of the spherical portion 8 is not particularly limited.
- a metal ball may be used, or an inorganic material other than resin or metal may be formed into a ball shape.
- the lens unit 12 is placed in front of the upper surface 6c (Y1) of the first base 6. As shown in FIG. 2, in the assembled state, the lens unit 12 is located in front of the light emitting element 9 (Y1).
- the lens part 12 can also be provided in the support body 5 side (refer the structure of FIG. 8).
- the holding plate (holding plate) 11 is preferably formed of a material having excellent thermal conductivity, like the heat radiating member 10.
- the holding plate 11 is a leaf spring material such as stainless steel having excellent thermal conductivity.
- the holding plate 11 includes a side portion 11a located on the left side (X2) of the heat radiating member 10 and a rear portion (Y2) integrated with the side portion 11a. ) Located at the rear portion 11b and the side portion 11a, and provided at a position facing the lower surface of the facing portion 7a of the second base member 7 in the assembled state, as shown in FIGS. And the holding projection 11d provided on the inner surface of the facing portion 11c.
- the surface of the holding projection 11d is formed in a convex curved shape.
- the side portion 11 a of the holding plate 11 is fixed to the heat radiating member 10 by an adhesive, welding, or the like. 2 and 3, in the assembled state, the surface of the holding projection 11d is in contact with the lower surface of the facing portion 7a of the second base member 7, and the concave portion 14 and the spherical portion 8 of the first base member 6 are in contact. Even if the concave portion 15 and the spherical portion 8 of the second base material 7 are not fixed to each other, the heat radiating members 10 constituting the light emitting units 2 to 4 by the holding plate 11, the first base material 6, The spherical part 8 and the 2nd base material 7 can be hold
- a third fixing portion 28 Between the concave portion 14 and the spherical portion 8 of the first base material 6 is a third fixing portion 28, and between the concave portion 15 and the spherical portion 8 of the second base material 7 is a second fixing portion 29 (see FIG. 2).
- These fixing portions 29 are fixed after the inclination of the light emitting element 9 is adjusted as will be described in detail later. Therefore, in the light emitting device 1 as a finished product, both the second fixing portion 29 and the third fixing portion 28 are fixed. Further, the first base 6 and the heat radiating member 10 are also fixed.
- the fixing method is not particularly limited.
- the first substrate 6 is formed of a light-transmitting material, for example, an ultraviolet curable resin is interposed between the first substrate 6 and the heat dissipation member 10.
- an ultraviolet curable resin is interposed between the first substrate 6 and the heat dissipation member 10.
- the support 5 has a support surface 5a parallel to the XZ plane.
- the support surface 5a is located behind the support 5 (Y2), and faces the front surface 7c of the second base material 7 of each light emitting unit 2-4.
- the support surface 5a is located on the light emitting surface side (light emitting surface) of the light emitting element 9 or on the light emitting unit side of each of the light emitting units 2 to 4 (front surface side of each lens unit 12).
- a holder 25 is provided on the upper surface 5 c of the support 5, and a prism 16 and band filters 17 and 18 are further provided on the holder 25. Both the prism 16 and the bandpass filters 17 and 18 are installed with an inclination of 45 degrees with respect to the X axis and the Y axis.
- the transmission characteristics and reflection characteristics of the band filter 17 and the band filter 18 are different from each other.
- the band filter 17 transmits the light emitted from the third light emitting unit 4 and reflected by the prism 16, and reflects the light emitted from the second light emitting unit 3.
- the band filter 18 transmits both the light emitted from the third light emitting unit 4 and the second light emitting unit 3 and reflects the light emitted from the first light emitting unit 2.
- each of the light emitting units 2 to 4 is in a state where the front surface 7 c of the second base material 7 is in contact with (abuts) the support surface 5 a of the support 5. It is fixedly supported on the support surface 5a.
- the space between the front surface 7c and the support surface 5a of the second base material 7 constitutes the first fixing portion 34 (see FIG. 2).
- the position of the front surface 7c of the second base material 7 of each light emitting unit 2 to 4 is adjusted in the X and Z directions within the support surface 5a, and between the spherical portion 8 and the concave portions 14 and 15. Is adjusted by adjusting the inclination of the light-emitting element 9 so that the optical axes B1 (see FIG. 4) of the light-emitting units 2 to 4 reflected or transmitted through the band-pass filter 18 are matched.
- the fixing portions 28, 29, and 34 are fixed using, for example, ultraviolet curable resins 20, 21, and 22 (see FIGS. 2 and 5). As shown in FIG. 5, the ultraviolet curable resins 21 and 22 are applied to the concave portions 14 and 15 provided on the first base material 6 and the second base material 7, for example.
- the first base material 6 and the second base material 7 are made of a light transmissive material. Therefore, each ultraviolet curable resin 20, 21, 22 can be cured by allowing the first substrate 6 and the second substrate 7 to transmit ultraviolet rays. Therefore, the position adjustment between the front surface 7c and the support surface 5a of the second substrate 7 and the inclination adjustment of the light emitting element 9 performed by sliding between the concave portions 14 and 15 and the spherical portion 8 are performed with high accuracy.
- the fixing portions 28, 29, and 34 can be securely and easily fixed.
- the optical axes from the light emitting units 2 to 4 that are emitted after being reflected or transmitted through the band filter 18 are adjusted so as to coincide with each other.
- an optical axis adjustment method (a method for manufacturing the light emitting device 1) will be described with reference to FIGS.
- the first light emitting unit 2 is attached to the support surface 5 a of the support 5.
- the front surface 7c of the second base material 7 is supported as shown in FIGS. 2 and 10 in a state where the light L1 is emitted from the light emitting element 9 constituting the light emitting unit 2 by being input to the electrode portion 13. It abuts against the support surface 5a of the body 5.
- an ultraviolet curable resin 20 (see FIG. 2) is applied to the front surface 7c of the second substrate 7 or the support surface 5a side.
- the front surface 7c of the second base material 7 is moved while abutting on the XZ plane of the support surface 5a to adjust the position in the X direction and the Z direction.
- the inclination of the light emitting element 9 of the first light emitting unit 2 is adjusted by sliding between the spherical portion 8 and the concave portions 14 and 15.
- the inclination of the light emitting element 9 can be adjusted three-dimensionally. Since the second base material 7 is in contact with the support surface 5 a, it is located above the second base material 7 that tilts when sliding between the spherical portion 8 and the concave portions 14, 15.
- the first base 6, the heat radiating member 10, and the light emitting element 9. In FIG.
- the inclination of the light emitting element 9 is adjusted in the rotation direction r around the X1-X2 axis, for example. Further, as shown in FIG. 5, for example, ultraviolet curable resins 21 and 22 are previously applied in the concave portions 14 and 15.
- the position adjustment and tilt adjustment of the light emitting element 9 in the X direction and the Z direction can be performed while confirming the direction of the optical axis B1 obtained by reflection by the bandpass filter 18.
- the direction of the optical axis B1 is a reference direction, but adjustment for actually aligning a plurality of optical axes is important from the subsequent mounting of the second light emitting unit 3. Therefore, for example, without adjusting the inclination of the light emitting element 9, the first light emitting unit 2 in a state where the second fixing portion 29 and the third fixing portion 28 are fixed in advance with the ultraviolet curable resins 21 and 22 is fixed to the predetermined surface of the support surface 5 a. You may make it attach to a position.
- the first base material 6 and the second base material 7 are made of a light transmissive material. Accordingly, the ultraviolet rays are transmitted through the first base material 6 and the second base material 7, and the ultraviolet curable resins 20, 21, and 22 provided in the fixing portions 28, 29, and 34 are cured, so that the second base material 7
- the front surface 7c and the support surface 5a can be fixed to each other, and the spherical portion 8 and the concave portions 14 and 15 can be fixed to each other.
- the second light emitting unit 3 is attached to the support 5 as shown in FIG.
- the ultraviolet curable resins 21 and 22 are applied between the spherical portion 8 and the concave portions 14 and 15 constituting the second light emitting unit 3, but are not cured and fixed (uncured). State).
- the second light emitting unit 3 When the second light emitting unit 3 is attached to the support 5, the light axis L2 is emitted from the light emitting element 9 constituting the second light emitting unit 3, the band filter 17 is reflected, and the optical axis is transmitted through the band filter 18.
- the position adjustment and the inclination adjustment of the light emitting element 9 are performed while confirming whether or not B2 coincides with the optical axis B1 serving as the reference of the first light emitting unit 2. That is, with the light L2 emitted from the light emitting element 9 constituting the second light emitting unit 3, the front surface 7c of the second base material 7 of the second light emitting unit 3 is abutted against the support surface 5a of the support 5 in the X direction, Adjust the position in the Z direction.
- the inclination of the light emitting element 9 of the second light emitting unit 3 is adjusted by sliding between the spherical portion 8 and the concave portions 14 and 15.
- the optical axis B ⁇ b> 1 as a reference is intentionally shifted from the optical axis B ⁇ b> 2 currently adjusted.
- the above-described position adjustment and tilt adjustment are adjusted so that the optical axis B2 coincides with the optical axis B1 of the first light emitting unit 2, and when the optical axis B2 coincides with the optical axis B1, the first light emitting unit 3 of the second light emitting unit 3 is adjusted.
- the base material 6 and the second base material 7 are irradiated with ultraviolet rays U to be transmitted through the base materials 6 and 7, and the ultraviolet curable resins 20, 21, and 22 applied to the fixing portions 28, 29, and 34 are cured. . In the present embodiment, it is possible to simultaneously cure the ultraviolet curable resins 20, 21, and 22.
- the third light emitting unit 4 is attached to the support 5, but the optical axis adjustment method (manufacturing method) of the third light emitting unit 4 is the same as that of the second light emitting unit 3, and is therefore omitted.
- the first base material 6, the second base material 7 facing the first base material 6, and the inclination adjusting unit 27 (the spherical part 8 and the spherical part 8).
- Each of the light emitting units 2 to 4 can be configured with a simple configuration and a small number of parts including the concave portions 14 and 15 and the light emitting element 9.
- the front surface 7c of the second base material 7 can be brought into contact with the support surface 5a to adjust the position with respect to the support surface 5a, and by sliding between the spherical portion 8 and the concave portions 14, 15.
- the inclination of each light emitting element 9 can be adjusted, and the plurality of adjustments can be easily and highly accurately performed.
- the first fixing portion 34 is provided between the front surface 7 c and the support surface 5 a of the second base material 7, and the second portion is provided between the concave portion 15 and the spherical portion 8 of the second base material 7.
- the fixing portion 29 is provided, and the second base material 7 is formed of a light transmissive material. For this reason, the fixing portions 29 and 34 can be fixed by utilizing the transmission of light to the second base material 7, and the position adjustment and the inclination adjustment of the light emitting element 9 are performed with high accuracy.
- the fixing portions 29 and 34 can be securely and easily fixed.
- a spherical portion 8 is interposed between the first base material 6 and the second base material 7, and a concave shape is formed on the surface of the first base material 6 facing the spherical portion 8.
- a portion 14 is formed, and a third fixing portion 28 is formed between the spherical portion 8 and the concave portion 14.
- the first substrate 6 is also formed of a light transmissive material. Therefore, the third fixing portion 28 can be fixed easily and reliably using the transmission of light to the first base material 6.
- the light emitting device 1 capable of realizing the above can be realized.
- the light emitting device 1 of the present embodiment is formed using the light emitting element (bare chip) 9 and can promote downsizing of the light emitting device 1.
- the structure of the present embodiment is used even if the lens unit 12, the bandpass filters 17 and 18, the prism 16, and the like incorporated in the light emitting device 1 are not subjected to positional variation or high-precision alignment.
- the optical axis can be adjusted with high accuracy.
- the plurality of light emitting units 2 to 4 are fixedly supported on the common support surface 5a.
- the positions of the light emitting units 2 to 4 are adjusted with respect to the support surface 5a and the inclination of the light emitting element 9 is adjusted so that the optical axes coincide with each other.
- the optical axes can be aligned easily and with high accuracy, and a small light emitting device 1 including a plurality of light emitting units 2 to 4 can be realized.
- the fixing portions 28, 29, and 34 are fixed to each of the first base material 6 and the second base material 7 by the ultraviolet curable resins 20, 21, and 22 through the ultraviolet rays.
- the first base material 6 and the second base material 7 may be irradiated with laser light to melt and fix the metal.
- a material that can be fixed by light transmission to the first base material 6 and the second base material 7 is provided in advance at the interface between the fixing portions 28, 29, and 34. Light is transmitted through the base material 7 to fix the fixing portions 28, 29, and 34. For this reason, compared with the case where an adhesive etc. are apply
- the periphery of the fixing portion between the spherical portion 8 and the concave portions 14 and 15 is difficult to see from the outside and is more difficult to fix using an adhesive or the like from the outside, but according to this embodiment, the spherical portion 8 And the concave portions 14 and 15 can be fixed easily and reliably.
- the heat radiating member 10 is not an essential member.
- the first base material 6 and the second base material 7 formed of a light-transmitting material generally have low thermal conductivity, in order to improve heat dissipation, the base on which each light emitting element 9 is placed. It is preferable to form the material with a heat radiating member 10 such as AlN.
- the holding plate 11 is not an essential member, but in the step of positioning and fixing the light emitting units 2 to 4 on the support 5, the concave shape of the first base material 6 is used to adjust the inclination of the light emitting element 9. Since the third fixing portion 28 between the portion 14 and the spherical portion 8 and the second fixing portion 29 between the concave portion 15 of the second base material 7 and the spherical portion 8 are not fixed, the external force without the holding means When such as, is added, it is easy to cause problems such as disjoint members. Therefore, by providing the holding plate 11 having the structure shown in the present embodiment, each of the light emitting units 2 to 4 before fixing can be appropriately held, and the holding plate 11 is formed of a material having excellent heat conductivity. By supporting 11 in the state which contact
- the surface of the holding projection 11d has a convex curved surface, and is slid between the concave portion 15 and the spherical portion 8 of the first base material 6 and between the concave portion 14 and the spherical portion 8 of the second base material 7.
- the holding protrusion 11d can be slid with respect to the lower surface of the second base material 7, and the inclination adjustment of the light emitting element 9 can be appropriately performed even if the holding plate 11 is provided. .
- the spherical portion (ball portion) 8 is interposed between the concave portion 14 of the first base material 6 and the concave portion 15 of the second base material 7.
- the convex curved portion 40 is moved downward from the lower surface 6 b of the first base material 6 (Z2 direction; direction of the second base material 7) to the first base material 6.
- 6 may be configured so that the concave portion 15 is provided on the surface of the second base material 7 that is formed integrally with the convex portion 40 and faces the convex curved portion 40.
- a convex curved portion 55 is formed integrally with the second base material 7 from the upper surface of the second base material 7 upward (Z1 direction; the direction of the first base material 6). And you may make it the structure which provided the recessed part 14 in the surface of the 1st base material 6 facing the said convex-shaped curved part 55.
- the first curved portion 40, 55 and the concave portions 14, 15 constitute a first fixing portion 24. Then, as in the embodiment shown in FIGS. 1 to 5, the inclination of the light emitting element 9 is adjusted by sliding between the convex curved portions 40 and 55 and the concave portions 14 and 15, and then the second base material.
- the first fixing part 24 can be fixed by transmitting light (for example, ultraviolet light) to the terminal 7 (for example, an ultraviolet curable resin provided in advance on the first fixing part 24 is fixed and fixed).
- the first base 6 may not be formed of a light transmissive material. Therefore, for example, the first base material 6 can be formed of a material having excellent thermal conductivity such as AlN, similarly to the heat radiating member 10 shown in FIG. In such a case, the heat radiating member 10 is not necessary, and the light emitting element 9 can be installed directly on the surface of the first base 6.
- the front surface 7c of the second base material 7 is supported on the support surface while irradiating light from the light-emitting units 2 to 4. 5a, the position of the light-emitting element 9 is adjusted by sliding the spherical portion 8 and the concave portions 14 and 15 to adjust the position relative to the support surface 5a.
- Light is transmitted through the second base material 7 and the first base material 6 so that the first fixing portion 34 between the second base material 7 and the support surface 5a, and between the spherical portion 8 and the concave portions 14, 15
- the second fixing portion 29 and the third fixing portion 28 are fixed.
- the front surface 7c of the second base material 7 can be brought into contact with the support surface 5a to adjust the position of the light emitting element 9 with respect to the support surface 5a, and the spherical portion 8 and the concave portions 14 and 15 can be adjusted.
- the inclination of the light emitting element 9 can be adjusted by sliding between them, and the plurality of adjustments can be performed easily and with high accuracy.
- the first fixing portion 34 located between the front surface 7c and the support surface 5a of the second base material 7 and the second fixing portion 29 between the concave portion 15 and the spherical portion 8 of the second base material 7 are used. Since the third fixing portion 28 between the concave portion 14 and the spherical portion 8 of the first base material 6 is fixed using light transmission to the first base material 6 and the second base material 7, The fixing portions 28, 29, and 34 can be fixed securely and easily after the position adjustment and the inclination adjustment of the light emitting element 9 are performed with high accuracy. Further, in this embodiment, each of the fixing portions 28, 29, 34 can be appropriately fixed without causing a surface shift in each of the fixing portions 28, 29, 34, or a defect such as a change in temperature after fixing. .
- both the first fixing portion 34 and the second fixing portion 29 can be fixed simultaneously. That is, in this embodiment, after making one adjustment first to make one fixing part fixed, the other adjustment can be made to fix the fixing part. At least, the front surface 7c of the second base material 7 is abutted against the support surface 5a to adjust the position with respect to the support surface 5a, and the inclination of the light emitting element 9 is adjusted by sliding between the spherical portion 8 and the concave portion 15. At the same time, the fixing portions 28 and 34 can be fixed, so that the optical axis can be adjusted easily and with high accuracy. Further, since the fixing process is only required once, the manufacturing time can be shortened, and as a result, the manufacturing cost can be reduced.
- the third fixing portion 28 is further provided between the concave portion 14 and the spherical portion 8 of the first base material 6, together with the fixing of the first fixing portion 34 and the second fixing portion 29, It is possible to transmit light also to the first base 6 and fix the fixing portions 28, 29, and 34 simultaneously.
- the first light emitting unit 2 is supported on the support surface 5a, and the other light emitting units 3 and 4 are connected to the light emitting element. While irradiating light from 9, the position adjustment with respect to the support surface 5a and the inclination adjustment of the light emitting element 9 are performed, and the optical axes of the other light emitting units 3 and 4 are made to coincide with the optical axis B1 of the first light emitting unit 2. Yes.
- the optical axes of the respective light emitting units 2 to 4 can be easily matched with high accuracy by adjusting the position with respect to the support surface 5a and adjusting the inclination of the light emitting element 9.
- the timing of fixing the light emitting units 2 to 4 to the fixing portions may be performed for each of the light emitting units 2 to 4 or for all the light emitting units 2 to 4 at the same time.
- the light-emitting device 1 in this embodiment is incorporated in the light source device 33 shown in FIG.
- the light emitting device 1 is accommodated in a case 30 constituting the light source device 33, and further, an IC 31, a lens unit 32, and the like are accommodated in the case 30.
- a plurality of terminal portions 35 electrically connected to the IC 31 are provided on the outer peripheral surface of the case 30.
- a window 30 a is provided on the side surface of the case 30 at a position facing the lens portion 32.
- light is irradiated from the lens unit 32 to the outside through the window 30a.
- light having different wavelengths and different hues emitted from the respective light emitting units 2 to 4 can be alternately switched and irradiated from the lens unit 32 to the outside along the same optical axis.
- the light emitted from the plurality of light emitting units 2 to 4 can be irradiated at the same time, and the mixed light can be irradiated from the lens unit 32 to the outside.
- FIGS. 8 and 9 are perspective views showing the structure of another light emitting device and light emitting unit different from those shown in FIGS. Although only one light emitting unit is attached to the light emitting device 60 of FIG. 8, in practice, three light emitting units can be attached as in FIG.
- a recess 41a is formed on the surface of the support 41, and one vertical surface 42 formed in the recess 41a is used as a support surface.
- the vertical surface (support surface) 42 is located on the opposite side of the light emitting unit of the light emitting unit 45.
- the lens unit 43, the band filter 44, and the like are placed on the upper surface 41b of the support body 41.
- FIG. 9 is an exploded perspective view of the light emitting unit 45.
- the light emitting unit 45 includes the light emitting element 9, the heat radiating member 10, the first base material 48, the second base material 46, and the inclination positioned between the first base material 48 and the second base material 46.
- An adjustment unit 53 and a heat dissipation plate 47 are included.
- the light emitting element 9 and the heat radiating member 10 are the same as those shown in FIG.
- a heat radiating plate 47 is interposed between the heat radiating member 10 and the first base material 48.
- a convex curved portion 49 that protrudes downward is formed on the lower surface of the first base material 48 as in FIG.
- whether or not the first base material 48 is formed of a light transmissive material is arbitrary.
- a concave portion 50 is formed on the upper surface of the second base material 46 at a position facing the convex curved portion 49.
- the convex curved portion 49 and the concave portion 50 constitute an inclination adjusting portion 53.
- the second base member 46 is provided with a wall 51 extending in the height direction on the side facing the support surface 42, and a wall surface 51 a facing the support surface 42 of the wall 51 is a flat surface, A portion between the support surface 42 and the support surface 42 constitutes a first fixing portion.
- a portion between the convex curved portion 49 formed on the first base material 48 and the concave portion 50 formed on the second base material 46 constitutes a second fixing portion.
- the second base material 46 is formed of a light-transmitting material, and the first fixing part and the second fixing part are provided with, for example, an ultraviolet curable resin, and the support surface 42 is provided between the wall surface 51 a and the support surface 42.
- Each of the fixing portions can be fixed by transmitting ultraviolet light to the base material 46, and the optical axes of the respective light emitting units can be aligned easily and with high accuracy.
- each of the light emitting units includes a light emitting element, a first base material, a second base material, and an inclination adjusting unit positioned between the first base material and the second base material.
- the plurality of light emitting units are fixedly supported on the support surface, and the respective optical axes coincide with each other.
- each light emitting unit having a simple structure and a small number of parts can be configured, and the end surface of the second base material can be brought into contact with the support surface to adjust the position with respect to the support surface, and the convex shape of the inclination adjusting unit
- the inclination of the light emitting element can be adjusted by sliding between the curved portion and the concave portion, and the plurality of adjustments can be easily and highly accurately performed.
- a plurality of light emitting units having such a structure are each fixedly supported on a support surface, whereby a small light emitting device having a plurality of light emitting units with a simple structure and the same optical axis can be realized.
- the second base material is not limited to being a light transmissive material, and the fixing method is not limited.
- the number of the first base material and the second base material is not limited.
- a plurality of second base materials are provided, and a second base material on which one of a convex curved portion or a concave portion is formed and a second base material provided with an end surface that comes into contact with the support surface are prepared separately.
- a form in which the second base material is bonded can be presented.
- Light-emitting device 2-4 45 Light-emitting unit 5 Support body 5a, 42 Support surface 6, 48 1st base material 7, 46 2nd base material 7c (front surface of 2nd base material) 8 Spherical part 9 Light-emitting element 10 Heat dissipation member 11 Holding plate 11d Holding projections 12, 32, 43 Lens portions 14, 15, 50 Concave portions 17, 18, 44 Band filters 20, 21, 22 UV curable resin 27, 53 Tilt adjusting portion 28 Third fixing portion 29 Second fixing Part 30 Case 33 Light source device 34 First adhering part 40, 55, 49 Convex curved part 47 Heat radiation plate 51 Wall part 51a Wall surface
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Abstract
Description
しかしながら特許文献1は、発光装置に関する発明でなく光軸調整については何も記載されていない。また特許文献1に記載された発明は、X、Y、Z方向の位置合わせを行うものであるが、構造が複雑で部品点数も多い。また、特許文献1に記載された発明では、位置合わせされたステージの固着構造(固着方法)に関しては何ら記載されていない。
発光素子を備える発光ユニットと、前記発光ユニットを固定支持する支持面を備える支持体と、を有して構成され、
前記発光ユニットは、第1基材と、前記第1基材に相対向して配置される第2基材と、前記第1基材と前記第2基材間に位置し、一方が凸型曲状部で、前記凸型曲状部と対向する他方が凹状部で形成された傾き調整部と、前記第1基材と前記第2基材のうち前記第1基材側に支持される前記発光素子と、を有して構成されており、
前記第2基材の端面が前記支持面に当接されて前記支持面に対し位置調整された状態で固着される前記第2基材の端面と前記支持面間の第1固着部と、前記傾き調整部により前記発光素子の傾きが調整された状態で固着される前記凸型曲状部と前記凹状部間の第2固着部とが設けられており、
前記第2基材は、光透過性の材料で形成されており、前記第1固着部及び前記第2固着部は前記第2基材に透過した光により固着されていることを特徴とするものである。
各発光ユニットが、夫々、第1基材と、前記第1基材に相対向して配置される第2基材と、前記第1基材と前記第2基材間に位置し、一方が凸型曲状部で、前記凸型曲状部と対向する他方が凹状部で形成された傾き調整部と、前記第1基材と前記第2基材のうち前記第1基材側に支持される前記発光素子と、を有して構成されており、
各発光ユニットの光軸が一致するように、前記支持面に各発光ユニットの第2基材の端面が当接されて位置調整され、且つ、各発光ユニットの各発光素子の傾きが前記傾き調整部を用いて調整された状態で、各発光ユニットが前記支持面に固定支持されていることを特徴とするものである。
前記発光ユニットを、第1基材と、光透過性の材料で形成された第2基材と、前記第1基材と前記第2基材間に位置し、一方が凸型曲状部で、前記凸型曲状部と対向する他方が凹状部で形成された傾き調整部と、前記第1基材と前記第2基材のうち前記第1基材側に支持される前記発光素子と、を有して構成し、
前記発光ユニットから光を照射しながら、前記第2基材の端面を、前記支持面に当接して前記支持面に対する位置調整を行い、前記傾き調整部を用いて前記発光素子の傾きを調整し、光透過性の材料で形成された前記第2基材に光を透過させて、前記第2基材の端面と支持面間の第1固着部、及び、前記凸型曲状部と前記凹状部間の第2固着部を夫々、固着することを特徴とするものである。
2~4、45 発光ユニット
5 支持体
5a、42 支持面
6、48 第1基材
7、46 第2基材
7c (第2基材の)前面
8 球状部
9 発光素子
10 放熱部材
11 保持板
11d 保持突起
12、32、43 レンズ部
14、15、50 凹状部
17、18、44 帯域フィルター
20、21、22 紫外線硬化樹脂
27、53 傾き調整部
28 第3固着部
29 第2固着部
30 ケース
33 光源装置
34 第1固着部
40、55、49 凸型曲状部
47 放熱プレート
51 壁部
51a 壁面
Claims (12)
- 発光素子を備える発光ユニットと、前記発光ユニットを固定支持する支持面を備える支持体と、を有して構成され、
前記発光ユニットは、第1基材と、前記第1基材に相対向して配置される第2基材と、前記第1基材と前記第2基材間に位置し、一方が凸型曲状部で、前記凸型曲状部に対向する他方が凹状部で形成された傾き調整部と、前記第1基材と前記第2基材のうち前記第1基材側に支持される前記発光素子と、を有して構成されており、
前記第2基材の端面が前記支持面に当接されて前記支持面に対し位置調整された状態で固着される前記第2基材の端面と前記支持面間の第1固着部と、前記傾き調整部により前記発光素子の傾きが調整された状態で固着される前記凸型曲状部と前記凹状部間の第2固着部とが設けられており、
前記第2基材は、光透過性の材料で形成されており、前記第1固着部及び前記第2固着部は前記第2基材に透過した光により固着されていることを特徴とする発光装置。 - 複数の発光ユニットが前記支持面に固定支持されており、各光軸が一致するように、各発光ユニットが前記支持面に対して位置調整され且つ発光素子の傾きが調整されている請求項1記載の発光装置。
- 各固着部では、前記第2基材に紫外線を透過させて紫外線硬化樹脂により固着しており、あるいは前記第2基材にレーザ光を照射して金属を溶融して固着している請求項1又は2に記載の発光装置。
- 前記第1基材と前記第2基材との間には前記凸型曲状部を構成する球状部が介在し、前記球状部と対向する前記第1基材及び前記第2基材の表面に夫々、前記凹状部が形成されており、前記第1基材が光透過性の材料で形成され、前記第1基材の凹状部と前記球状部との間に第3固着部が形成され、前記第3固着部が前記第1基材への光透過により固着されている請求項1ないし3のいずれか1項に記載の発光装置。
- 前記第1基材及び前記第2基材の一方に前記凸型曲状部が一体に形成され、他方に前記凹状部が一体に形成されている請求項1ないし3のいずれか1項に記載の発光装置。
- 前記第1基材と前記発光素子との間に放熱部材が設けられ、前記発光素子が前記放熱部材の表面に載置されている請求項1ないし5のいずれか1項に記載の発光装置。
- 前記放熱部材と前記第2基材間、あるいは前記第1基材と前記第2基材間を保持する放熱板を兼ねた保持板が設けられている請求項1ないし6のいずれか1項に記載の発光装置。
- 複数の発光ユニットと、前記発光ユニットを固定支持する支持面を備える支持体と、を有して構成され、
各発光ユニットが、夫々、第1基材と、前記第1基材に相対向して配置される第2基材と、前記第1基材と前記第2基材間に位置し、一方が凸型曲状部で、前記凸型曲状部と対向する他方が凹状部で形成された傾き調整部と、前記第1基材と前記第2基材のうち前記第1基材側に支持される前記発光素子と、を有して構成されており、
各光軸が一致するように、前記支持面に各発光ユニットの第2基材の端面が当接されて位置調整され、且つ、各発光ユニットの各発光素子の傾きが前記傾き調整部を用いて調整された状態で、各発光ユニットが前記支持面に固定支持されていることを特徴とする発光装置。 - 発光ユニットと、前記発光ユニットを固定支持する支持面を備える支持体と、を有して構成される発光装置の製造方法において、
前記発光ユニットを、第1基材と、光透過性の材料で形成された第2基材と、前記第1基材と前記第2基材間に位置し、一方が凸型曲状部で、前記凸型曲状部と対向する他方が凹状部で形成された傾き調整部と、前記第1基材と前記第2基材のうち前記第1基材側に支持される前記発光素子と、を有して構成し、
前記発光ユニットから光を照射しながら、前記第2基材の端面を、前記支持面に当接して前記支持面に対する位置調整を行い、前記傾き調整部を用いて前記発光素子の傾きを調整し、光透過性の材料で形成された前記第2基材に光を透過させて、前記第2基材の端面と支持面間の第1固着部、及び、前記凸型曲状部と前記凹状部間の第2固着部を夫々、固着することを特徴とする発光装置の製造方法。 - 前記第1固着部及び前記第2固着部の双方を同時に固着する請求項9記載の発光装置の製造方法。
- 複数の前記発光ユニットを前記支持面に固定支持する際、第1発光ユニットを前記支持面に支持した後、他の発光ユニットを、前記発光素子から光を照射しながら、前記支持面に対する位置調整及び発光素子の傾き調整を行い、他の発光ユニットの光軸を前記第1発光ユニットの光軸に一致させる請求項9又は10に記載の発光装置の製造方法。
- 各固着部に紫外線硬化樹脂膜あるいは金属膜を形成しておき、前記支持面に対する位置調整及び発光素子の傾き調整が終了した後、前記第2基材に紫外線を透過して前記紫外線硬化樹脂膜により第1固着部及び第2固着部を固着し、あるいは、前記第2基材に光を透過し前記金属膜を溶融させて前記第1固着部及び前記第2固着部を固着する請求項9ないし11のいずれか1項に記載の発光装置の製造方法。
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