JP5596293B2 - 撮像ユニット - Google Patents
撮像ユニット Download PDFInfo
- Publication number
- JP5596293B2 JP5596293B2 JP2009049663A JP2009049663A JP5596293B2 JP 5596293 B2 JP5596293 B2 JP 5596293B2 JP 2009049663 A JP2009049663 A JP 2009049663A JP 2009049663 A JP2009049663 A JP 2009049663A JP 5596293 B2 JP5596293 B2 JP 5596293B2
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- JP
- Japan
- Prior art keywords
- optical system
- objective optical
- imaging element
- light receiving
- rearmost
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003384 imaging method Methods 0.000 title claims description 104
- 230000003287 optical effect Effects 0.000 claims description 138
- 239000000853 adhesive Substances 0.000 claims description 57
- 230000001070 adhesive effect Effects 0.000 claims description 57
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 230000004323 axial length Effects 0.000 claims 2
- 239000006059 cover glass Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000016 photochemical curing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/041—Capsule endoscopes for imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/042—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by a proximal camera, e.g. a CCD camera
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B29C65/1483—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier coated on the article
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- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
- B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
- B29C66/24245—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle forming a square
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/541—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms
- B29C66/5414—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms said substantially flat extra element being rigid, e.g. a plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14618—Containers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14625—Optical elements or arrangements associated with the device
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- H—ELECTRICITY
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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
- Signal Processing (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Toxicology (AREA)
- Radiology & Medical Imaging (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Studio Devices (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Description
また、本発明の他の態様の撮像ユニットは、撮像素子と、該撮像素子よりも光軸方向前方に設けられた対物光学系とを具備する撮像ユニットであって、前記対物光学系の内、前記光軸方向において最も前記撮像素子側に位置する最後端の対物光学系の一部を構成し、該最後端の対物光学系から前記撮像素子側に延出して形成された脚部と、前記対物光学系の内、前記最後端の対物光学系の一部であって前記脚部とは異なる部分を構成し、前記最後端の対物光学系から前記対物光学系の径方向に延出して形成された環状のフランジ部と、前記撮像素子表面に形成された受光部を囲む位置に形成された開口部を有し、当該開口部の周縁部において前記撮像素子表面における前記受光部の周囲に配設された当該撮像素子の電極に対して電気的に接続されるとともに、封止樹脂により当該撮像素子表面に対して気密に貼着されたプリント基板と、を備え、前記脚部は、前記撮像素子表面の受光部を除く領域に対して突き当てられる突き当て面を有し、当該突き当て面により前記撮像素子から前記対物光学系までの前記光軸方向の長さを規定可能とし、前記フランジは、前記プリント基板における前記電極との貼着部に対して裏面側に位置する面部に対して当接する環状の当接部を有し、かつ、当該当接部が環状の全周に亘って前記プリント基板に対して光硬化型接着剤により接着されて固設されることにより、前記撮像素子に対する前記対物光学系の径方向の位置及び前記撮像素子から前記対物光学系までの前記光軸方向の長さを規定するとともに、前記最後端の対物光学系と前記受光部との間に前記受光部に光を集光させるためのレンズ機能を果たす密閉空間を形成して前記撮像素子の受光部を封止する。
さらに、本発明の他の態様の撮像ユニットは、撮像素子と、該撮像素子よりも光軸方向前方に設けられた対物光学系とを具備する撮像ユニットであって、前記対物光学系の内、前記光軸方向において最も前記撮像素子側に位置する最後端の対物光学系の一部を構成し、該最後端の対物光学系から前記対物光学系の径方向に延出して形成された環状のフランジ部と、前記撮像素子表面に形成された受光部を囲む位置に形成された開口部を有し、当該開口部の周縁部において前記撮像素子表面における前記受光部の周囲に配設された当該撮像素子の電極に対して電気的に接続されるとともに、封止樹脂により当該撮像素子表面に対して気密に貼着されたプリント基板と、を備え、前記フランジは、前記プリント基板における前記電極との貼着部に対して裏面側に位置する面部に対して当接する環状の当接部を有し、かつ、当該当接部が環状の全周に亘って前記プリント基板に対して光硬化型接着剤により接着されて固設されることにより、前記撮像素子に対する前記対物光学系の径方向の位置及び前記撮像素子から前記対物光学系までの前記光軸方向の長さを規定するとともに、前記最後端の対物光学系と前記受光部との間に前記受光部に光を集光させるためのレンズ機能を果たす密閉空間を形成して前記撮像素子の受光部を封止する。
図1は、本実施の形態を示す撮像ユニットの部分断面図、図2は、図1の撮像ユニットの内、最後端のレンズを、イメージセンサ及びプリント基板とともに図1中のIIの方向からみた上面図である。
図4は、本実施の形態を示す撮像ユニットの部分断面図、図5は、図4の撮像ユニットの内、最後端のレンズを、イメージセンサ及びプリント基板とともに図4中のVの方向からみた上面図である。
2…イメージセンサ(撮像素子)
2a…イメージセンサの表面(一面)
3…受光部
4…レンズ群(対物光学系)
5…最後端のレンズ(最後端の対物光学系)
5m…脚部
7…密閉空間
9…UV接着剤(光硬化型接着剤)
10…遮光部材
11…プリント基板
20…撮像ユニット
40…レンズ群(対物光学系)
50…最後端のレンズ(最後端の対物光学系)
50f…フランジ部
50m…脚部
70…遮光部材
R…径方向
Z…光軸方向
Z1…レンズ群の光軸方向の長さ
Z2…レンズ群の光軸方向の長さ
Claims (5)
- 撮像素子と、該撮像素子よりも光軸方向前方に設けられた対物光学系とを具備する撮像ユニットであって、
前記対物光学系の内、前記光軸方向において最も前記撮像素子側に位置する最後端の対物光学系の一部を構成し、該最後端の対物光学系から前記撮像素子側に延出して形成された環状の脚部を備え、
前記脚部は、前記撮像素子表面の受光部を除く領域に対して突き当てられる環状の突き当て面を有し、かつ、当該突き当て面が環状の全周に亘って前記撮像素子に対して光硬化型接着剤により接着されて固設されることにより、前記撮像素子に対する前記対物光学系の径方向の位置及び前記撮像素子から前記対物光学系までの前記光軸方向の長さを規定するとともに、前記最後端の対物光学系と前記受光部との間に前記受光部に光を集光させるためのレンズ機能を果たす密閉空間を形成して前記撮像素子の受光部を封止する
ことを特徴とする撮像ユニット。 - 撮像素子と、該撮像素子よりも光軸方向前方に設けられた対物光学系とを具備する撮像ユニットであって、
前記対物光学系の内、前記光軸方向において最も前記撮像素子側に位置する最後端の対物光学系の一部を構成し、該最後端の対物光学系から前記撮像素子側に延出して形成された脚部と、
前記対物光学系の内、前記最後端の対物光学系の一部であって前記脚部とは異なる部分を構成し、前記最後端の対物光学系から前記対物光学系の径方向に延出して形成された環状のフランジ部と、
前記撮像素子表面に形成された受光部を囲む位置に形成された開口部を有し、当該開口部の周縁部において前記撮像素子表面における前記受光部の周囲に配設された当該撮像素子の電極に対して電気的に接続されるとともに、封止樹脂により当該撮像素子表面に対して気密に貼着されたプリント基板と、
を備え、
前記脚部は、前記撮像素子表面の受光部を除く領域に対して突き当てられる突き当て面を有し、当該突き当て面により前記撮像素子から前記対物光学系までの前記光軸方向の長さを規定可能とし、
前記フランジは、前記プリント基板における前記電極との貼着部に対して裏面側に位置する面部に対して当接する環状の当接部を有し、かつ、当該当接部が環状の全周に亘って前記プリント基板に対して光硬化型接着剤により接着されて固設されることにより、前記撮像素子に対する前記対物光学系の径方向の位置及び前記撮像素子から前記対物光学系までの前記光軸方向の長さを規定するとともに、前記最後端の対物光学系と前記受光部との間に前記受光部に光を集光させるためのレンズ機能を果たす密閉空間を形成して前記撮像素子の受光部を封止する
ことを特徴とする撮像ユニット。 - 撮像素子と、該撮像素子よりも光軸方向前方に設けられた対物光学系とを具備する撮像ユニットであって、
前記対物光学系の内、前記光軸方向において最も前記撮像素子側に位置する最後端の対物光学系の一部を構成し、該最後端の対物光学系から前記対物光学系の径方向に延出して形成された環状のフランジ部と、
前記撮像素子表面に形成された受光部を囲む位置に形成された開口部を有し、当該開口部の周縁部において前記撮像素子表面における前記受光部の周囲に配設された当該撮像素子の電極に対して電気的に接続されるとともに、封止樹脂により当該撮像素子表面に対して気密に貼着されたプリント基板と、
を備え、
前記フランジは、前記プリント基板における前記電極との貼着部に対して裏面側に位置する面部に対して当接する環状の当接部を有し、かつ、当該当接部が環状の全周に亘って前記プリント基板に対して光硬化型接着剤により接着されて固設されることにより、前記撮像素子に対する前記対物光学系の径方向の位置及び前記撮像素子から前記対物光学系までの前記光軸方向の長さを規定するとともに、前記最後端の対物光学系と前記受光部との間に前記受光部に光を集光させるためのレンズ機能を果たす密閉空間を形成して前記撮像素子の受光部を封止する
ことを特徴とする撮像ユニット。 - 前記最後端の対物光学系は、光透過性部材から形成されていることを特徴とする請求項1〜3のいずれか1項に記載の撮像ユニット。
- 前記対物光学系の前記径方向の外周は、遮光部材によって覆われていることを特徴とする請求項1〜3のいずれか1項に記載の撮像ユニット。
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