`
`(12) United States Patent
`US 7,012,802 B2
`(10) Patent N0.:
`
`Nakajima et al. Mar. 14, 2006
`(45) Date of Patent:
`
`(54)
`
`ELECTRONIC APPARATUS INCLUDING
`OPTICAL GUIDE THAT GUIDES LIGHT
`FROM LIGHT-EMITTING DIODE TO
`OUTSIDE OF HOUSING
`
`(75)
`
`Inventors: Yuji Nakajima, Nishitama-gun (JP);
`Katsuo Ozawa, Hamura (JP)
`
`(56)
`
`References Cited
`U.S. PATENT DOCUMENTS
`
`.................. 361/683
`5,691,880 A * 11/1997 Seto et a1.
`5,808,861 A
`9/1998 Nakajima et 211.
`4/2005 Tsao ........................... 361/683
`6,876,546 B1 *
`2004/0228103 A1
`11/2004 Hsu
`
`FOREIGN PATENT DOCUMENTS
`
`(73)
`
`Assignee: Kabushiki Kaisha Toshiba, Tokyo (JP)
`
`(*)
`
`Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 58 days.
`
`JP
`JP
`TW
`
`8—6670
`3382073
`547774
`
`1/1996
`12/2002
`8/2003
`
`OTHER PUBLICATIONS
`
`(21)
`
`Appl. No.: 10/878,627
`
`(22)
`
`Filed:
`
`Jun. 29, 2004
`
`(65)
`
`(30)
`Jun.
`
`(51)
`
`(52)
`(58)
`
`Prior Publication Data
`
`US 2005/0018396 A1
`
`Jan. 27, 2005
`
`Foreign Application Priority Data
`
`30, 2003
`
`(JP)
`
`............................. 2003-187030
`
`Int. Cl.
`
`(2006.01)
`G06F 1/16
`US. Cl.
`...................................................... 361/683
`Field of Classification Search ................. 361/683
`See application file for complete search history.
`
`Taiwanese Office Action dated May 24, 2005 for Appln. No.
`93117989.
`
`* cited by examiner
`
`Primary Examiner—Lisa Lea-Edmonds
`(74) Attorney, Agent, or Firm—Pillsbury Winthrop Shaw
`Pittman, LLP
`
`(57)
`
`ABSTRACT
`
`An electronic apparatus that includes a housing, a holder
`provided in the housing and a light-emitting portion pro-
`vided in the housing. The holder is made of a resin and
`supports components. The holder includes an optical guide
`that guides light emitted from the light-emitting portion to
`outside of the housing, and the optical guide is formed
`integral With the holder.
`
`20 Claims, 6 Drawing Sheets
`
`
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`41
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`US 7,012,802 B2
`
`1
`ELECTRONIC APPARATUS INCLUDING
`OPTICAL GUIDE THAT GUIDES LIGHT
`FROM LIGHT-EMITTING DIODE TO
`OUTSIDE OF HOUSING
`
`CROSS-REFERENCE TO RELATED
`APPLICATIONS
`
`5
`
`This application is based upon and claims the benefit of
`priority from prior Japanese Patent Application No. 2003- 10
`187030, filed Jun. 30, 2003, the entire contents of which are
`incorporated herein by reference.
`
`BACKGROUND OF THE INVENTION
`
`2
`FIG. 1 is a perspective view of a portable computer
`according to a first embodiment of the present invention;
`FIG. 2 is a plan view of a main unit according to the first
`embodiment of the present invention;
`FIG. 3 is a cross sectional view taken along the line
`F3-F3 in FIG. 2;
`FIG. 4 is a cross sectional view taken along the line
`F4---F4 in FIG. 2;
`FIG. 5 is a plan view of the structure in which a holder
`containing an optical guide is built in a housing in the first
`embodiment of the present invention;
`FIG. 6 is a cross sectional view taken along the line
`F6-F6 in FIG. 5;
`FIG. 7 is a perspective view of the structure in which the
`15 holder containing the optical guide is built in the housing in
`the first embodiment of the present invention;
`FIG. 8 is a plan view of the holder according to the first
`embodiment of the present invention;
`FIG. 9 is a side view of the holder according to the first
`20 embodiment of the present invention;
`FIG. 10 is a plan view of the structure in which a holder
`containing an optical guide is built in a housing in a second
`embodiment of the present invention; and
`FIG. 11 is a cross sectional enlarged view of section A
`25 shown in FIG. 10.
`
`1. Field of the Invention
`The present invention relates to an electronic apparatus
`such as a portable computer that has a housing in which a
`light-emitting diode is housed, and more specifically to a
`structure designed to guide light emitted from the diode to
`the outside of the housing.
`2. Description of the Related Art
`U.S. Pat. No. 5,808,861 and Jpn. Pat. Appln. KOKAI
`Publication No. 8-6670 each disclose a portable computer,
`which is an example of the electronic apparatus. The por(cid:173)
`table computer includes a main unit and a display unit
`supported on the main unit.
`The main unit includes an indicator that displays the
`operation status of the portable computer or the contents of 30
`a function. The indicator has a plurality of lenses that are
`exposed to the outside of the main unit. The lenses are
`placed to face a plurality of diodes housed inside the main
`body. In a portable computer of such a type that a light(cid:173)
`emitting diode is placed distant away from a respective lens, 35
`an optical guide is provided between the diode and the lens.
`The optical guide is made of a transparent synthetic resin
`material. When a light-emitting diode emits light, the light
`emitted from the diode is guided through the optical guide
`to a respective lens. Thus, the lens that corresponds to the 40
`diode that is emitting the light is lit up to optically indicate
`the operation status of the portable computer or the contents
`of a function.
`On the other hand, the main unit contains a plurality of
`components such as a printed wiring board on which light(cid:173)
`emitting diodes are mounted, a speaker and a sub-battery.
`These components are held at predetermined positions
`within the main unit via one holder.
`In conventional portable computers, an optical guide and
`a holder are separate parts from each other. With this
`structure, the optical guide and holder need to be mounted
`to the main unit, thereby requiring a more time and labor in
`the assembly of the main unit. In addition, a plurality of
`screws and boss portions are required to mount the optical
`guides and holder to the main unit. As a result, the number
`of parts is increased, and consequently, the production cost
`of the portable computer is raised.
`
`DETAILED DESCRIPTION OF THE
`INVENTION
`
`The first embodiment of the present invention will now be
`described with reference to FIGS. 1 to 9.
`FIG. 1 discloses a portable computer 1 serving as an
`electronic apparatus. The portable computer 1 includes a
`main unit 2 and a display unit 3. The main unit 2 includes
`a flat box-like housing 4. As shown in FIGS. 2 to 5, the
`housing 4 includes a bottom wall 4a, an upper wall 4b, left
`and right side walls 4c and 4d, a front wall 4e and a rear wall
`4f. The housing 4 includes a base 5 having the bottom wall
`4a and an upper cover 6 having the upper wall 4b. The base
`5 and upper cover 6 cooperate with each other to form the
`side walls 4c, 4d, front wall 4e and rear wall 4f.
`The upper wall 4b of the housing 4 includes a palm rest
`7 and a keyboard mount section 8. The palm rest 7 is located
`45 in a front half section of the upper wall 4b. The keyboard
`mount portion 8 is a recess made open in the upper wall 4b,
`and it is located on a rear section of the palm rest 7.
`The keyboard mount section 8 supports a keyboard 9. The
`keyboard 9 is fit inside the keyboard mount section 8. A top
`50 cover 10 is detachably fit in a rear end portion of the
`keyboard mount section 8. The top cover 10 has a strip-like
`shape extending in a width direction of the housing 4. The
`keyboard 9 is sandwiched by its rear end portion between the
`top cover 10 and the keyboard mount section 8, thus fixating
`55 the keyboard 9 at a set position for the keyboard mount
`section 8.
`As shown in FIG. 3, a pair of speaker units lla and llb
`are provided in the rear end portion of the keyboard mount
`section 8. The speaker units lla and llb are located away
`60 from each other in the width direction of the housing 4, and
`they are covered by the top cover 10. The top cover 10 has
`a number of sound-penetrating holes 12 at respective posi(cid:173)
`tions corresponding to the speaker units lla and llb.
`Further, the top cover 10 includes an indicator 13 that
`65 optically indicates the operation status of the portable com(cid:173)
`puter 1 or the contents of the function. The indicator 13
`includes four lenses 14. The lenses 14 are arranged in line
`
`BRIEF DESCRIPTION OF THE SEVERAL
`VIEWS OF THE DRAWING
`
`The accompanying drawings, which are incorporated in
`and constitute a part of the specification, illustrate presently
`preferred embodiments of the invention, and together with
`the general description given above and the detailed descrip(cid:173)
`tion of the preferred embodiments given below, serve to
`explain the principles of the invention.
`
`8
`
`
`
`US 7,012,802 B2
`
`3
`with intervals in the longitudinal direction of the top cover
`10, and they are exposed to outside of the main unit 2.
`As shown in FIG. 1, the display unit 3 includes a display
`housing 15 and a liquid crystal display panel 16 housed in
`the display housing 15. The liquid crystal display panel 16 5
`includes a screen 16a that displays images. The screen 16a
`is exposed to the outside of the display unit 3 through an
`opening portion 17 made in the front surface of the display
`housing 15.
`The display housing 15 of the display unit 3 is supported 10
`on the rear end portion of the housing 4 by means of a pair
`of hinge portions 18a and 18b. The display unit 3 is
`pivotable between a close position and an open position. At
`the close position, the display unit 3 is set on the main unit
`2 such as to cover the palm rest 7 and the keyboard 9 from 15
`an upper side. At the open position, the display unit 3 is set
`to stand up with respect to the main unit 2 such as to expose
`the palm rest 7 and the keyboard 9.
`As shown in FIGS. 3, 4 and 6, the housing 4 houses a first
`printed wiring board 20, which serves as a mother board. 20
`The first printed wiring board 20 is placed in parallel with
`the bottom wall 4a of the housing 4 and the most part of the
`wiring board 20 is located underneath the keyboard 9. A
`plurality of connectors 21 are mounted on the rear end
`portion of the upper surface of the first printed wiring board 25
`20. The connectors 21 are designed to connect peripheral
`equipments including a printer, for example, to the appara(cid:173)
`tus. The connectors 21 are arranged in line with intervals
`there between in the width direction of the housing 4. A gap
`Gl is set between an adjacent pair of connectors 21.
`As shown in FIG. 3, a power switch 22, a cable connector
`23 and a light-emitting portion 24 are mounted on the upper
`surface of the first printed wiring board 20. The power
`switch 22, the first cable connector 23 and the light-emitting
`portion 24 are located underneath the top cover 10 and they 35
`are also arranged in the width direction of the housing 4. The
`light-emitting portion 24 is situated between the power
`switch 22 and the first cable connector 23. The light-emitting
`portion 24 includes four light-emitting diodes 25 as light
`sources. The light-emitting diodes 25 are arranged in line 40
`with intervals therebetween in the width direction of the
`housing 4 and they are set to face the lenses 14, respectively.
`As shown in FIGS. 3 to 7, a holder 28 is housed in the rear
`end portion of the housing 4. The holder 28 is fixated to the
`upper surface of the first printed wiring board 20 with a 45
`plurality of screws such as to cover the power switch 22, the
`cable connector 23 and the light-emitting portion 24 from an
`upper side.
`The holder 28 is made of a transparent synthetic resin
`material. The holder 28 includes first and second support 50
`portions 29a and 29b and an optical guide 30, which are
`formed integral with the holder. The first support portion 29a
`is located immediately above the power switch 22. As shown
`in FIGS. 7 to 9, the first support portion 29a has a guide wall
`31 having a quadrilateral cross section. The guide wall 31 55
`projects upwards from the upper surface of the first support
`portion 29a. A plurality of ribs 32 are formed on the outer
`circumference of the guide wall 31. The ribs 32 are formed
`as bridges between the outer circumference of the guide wall
`31 and the upper surface of the first support portion 29a so 60
`as to reinforce the guide wall 31. The guide wall 31 has a
`bottom portion 34 in which a through hole 33 is made. The
`through hole 33 is located directly above the power switch
`22.
`A switch element 35 as a component is housed inside the 65
`guide wall 31. The switch element 35 is supported to be
`movable in the vertical direction by the guide wall 31. The
`
`4
`switch element 35 has an operation shaft 36 projecting
`downwards. The operation shaft 36 is pierced through the
`through hole 33. A lower end of the operation shaft 36 is set
`to face the power switch 22. A power button 37 is provided
`on the upper surface of the switch element 35. The power
`button 37 is exposed outside the housing 4 through an
`opening portion 38 made in the top cover 10. The power
`button 37 is located adjacent to the indicator 13. When the
`power button 37 is pushed with a finger, the power switch 22
`is turned ON or OFF by means of the switch element 35.
`As shown in FIGS. 3 and 9, the second support portion
`29b of the holder 28 is situated at a higher level than that of
`the first support portion 29a, and further the second support
`portion 29b is placed adjacent to the first cable connector 23.
`The second support portion 29b includes a pair of boss
`portions 39a and 39b, a pair of guide projections 40a and
`40b. The boss portions 39a and 39b and the guide projec(cid:173)
`tions 40a and 40b project from the upper surface of the
`second support portion 29b.
`A second printed wiring board 41 as another component
`is supported on the second support portion 29b. The second
`printed wiring board 41 supports an electronic part 42 and a
`second cable connector 43. The second printed wiring board
`41 has a pair of guide holes 44a and 44b. The guide
`projections 40a and 40b are plugged into the guide holes 44a
`and 44b, respectively, so as to set the position of the second
`print wiring board 41 with regard to the second support
`portion 29b. The second printed wiring board 41 is fixed to
`the boss portions 39a and 39b via a pair of screws 45. The
`30 first cable connector 23 of the first printed wiring board 20
`and the second cable connector 43 of the second printed
`wiring board 41 are electrically connected to each other via
`a flexible printed wiring board 46 (shown in FIG. 5).
`As shown in FIGS. 6 and 9, the second support portion
`29b of the holder 28 is located above the connector 21. A
`plurality of reinforcing portions 48 are formed integrally on
`the lower surface of the second support portion 29b. The
`reinforcing portions 48 are each formed to have a flat plate
`shape and they project downwards from the lower surface of
`the second support portion 29b. The reinforcing portions 48
`are inserted respectively into gaps Gl created between
`adjacent connectors 21 so as to support the connectors 21
`from sides.
`With the above-described structure, the mounting strength
`of the connector 21 to the first printed wiring board 20 is
`increased. Therefore, when, for example, the plug of a
`peripheral device is inserted to the connector 21 or the plug
`is withdrawn from the connector 21, the connector 21 can
`withstand the force applied itself. Further, the reinforcing
`portions 48 function as ribs that reinforce the second support
`portion 29b, thereby preventing the deformation of the
`holder 28.
`As shown in FIGS. 3 and 7, the holder 28 has a through
`hole 50. The through hole 50 is located between the lenses
`14 and the light-emitting diodes 25. The through hole 50 has
`an elliptic shape that elongates along the arrangement direc-
`tion of the light-emitting diodes 25.
`The optical guide 30 of the holder 28 is located inside the
`through hole 50. The optical guide 30 is designed to guide
`light emitted from each of the diodes 25 towards the
`respective one of the lenses 14. The optical guide 30
`includes four guide sections 51 each having a columnar
`shape. The guide sections 51 are situated between the
`light-emitting diodes 25 and the lenses 14, respectively, and
`they are arranged in line in the width direction of the housing
`4 with intervals between adjacent pairs. Each of the guide
`sections 51 has a first end surface 52a and a second end
`
`9
`
`
`
`US 7,012,802 B2
`
`5
`surface 52b. The first end surface 52a is set to face the
`respective one of the light-emitting diodes 25. The second
`end surface 52b is set in contact with the respective one of
`the lenses 14. The first end surface 52a has a larger diameter
`than that of the second end surface 52b. In other words, each 5
`of the guide sections 51 becomes narrower gradually from
`the first end surface 52a towards the second end surface 52b.
`As shown in FIG. 8, each of the guide sections 51 is held
`inside the through hole 50 via a pair of bridge portions 54.
`The bridge portions 54 are formed integrally with the guide 10
`sections 51 and the holder 28, and each one of the bridge
`portions 54 is formed as bridges between the outer circum(cid:173)
`ference of the respective one of the guide sections 51 and the
`holder 28. Each of the bridge sections 54 defines a gap G2
`between the respective one of the guide sections 51 and the 15
`holder 28. In other words, the guide sections 51 are formed
`to be separated from the holder 28 except for the sections of
`the bridge portions 54.
`As shown in FIGS. 3, 7 and 8, the holder 28 includes a
`cylindrical cable guide 56. The cable guide 56 is integrally 20
`formed at an end portion of the second support portion 29b,
`and the guide 56 is set to stand in the thickness direction of
`the housing 4. The cable guide 56 is located near one of the
`speaker unit, that is, unit llb. Speaker cables 57 drawn from
`the other speaker unit llb, some other cables (not shown) 25
`are provided through the cable guide 56 from the upper
`section of the holder 28 to the lower section.
`When light is emitted from one of the light-emitting
`diodes 25, the emitted light is inputted to the first end surface
`52a of the respective one of the guide sections 51. The 30
`inputted light passes through the inside of the guide section
`51 to reach the second end surface 52b and then it is emitted
`via the respective lens 14 to the outside of the main unit 2.
`Thus the lenses 14 that correspond to those of the light(cid:173)
`emitting diode 25 which are emitting light are lit. In this
`manner, the operation state of the portable computer 1 and
`the contents of the function are indicated in an optical way.
`According to the first embodiment of the present inven(cid:173)
`tion, the holder 28 includes the first and second support
`portions 29a and 29b that support components such as the
`switch element 35 and the second printed wiring board 41,
`and the optical guide 30 that guides the light emitted from
`each of the light-emitting diodes 25 to the respective one of
`the lenses 14. The first and second support portions 29a and
`29b and the optical guide 30 are formed of a transparent 45
`synthetic resin material to be integral with each other.
`With the above-described structure, it is possible to add
`the function of guiding light emitted from each of the
`light-emitting diodes 25 to the respective one of the lenses
`14 to the holder 28 that supports the components. In other 50
`words, it is possible to add the function of supporting the
`components to the optical guide 30 that guides the light
`emitted from each of the light-emitting diodes 25 to the
`respective one of the lenses 14. Therefore, the number of the
`parts of the main unit 2 can be reduced.
`In addition, with the structure in which the holder 28 is
`fixed to the housing 4, the optical guide 30 is set at a
`predetermined position between the light-emitting diodes 25
`and the lenses 14. Therefore, it is not necessary to mount the
`optical guide 30 and holder 28 separately to the housing 4, 60
`and thus the number of work steps required to assemble the
`portable computer 1 can be reduced. Consequently, the
`production cost for the portable computer 1 can be cut down.
`FIGS. 10 and 11 show the second embodiment of the
`present invention. The second embodiment is different from
`the first embodiment in the respect of the structure of
`guiding light emitted from the light-emitting diodes 25 to the
`
`6
`outside of the housing 4. The rest of the structure is similar
`to that of the first embodiment. Therefore, in the descriptions
`of the second embodiment provided below, the structural
`elements similar to those of the first embodiment will be
`designated by the same reference symbols, and the expla(cid:173)
`nations for the elements will be omitted.
`As shown in FIG. 10, the top cover 10 includes four
`through holes 61. The through holes 61 are situated directly
`above the light-emitting diodes 25. Upper end portions of
`the guide sections 51 of the optical guide 30, which have the
`second end surfaces 52b, are inserted to the through holes
`61, respectively. Each of the second end surfaces 52b is
`exposed from the upper surface of the top cover 10, to make
`a light emitting surface 62 that output the light emitted from
`the respective light-emitting diode 25. As shown in FIG. 11,
`the light emitting surface 62 includes irregular recesses and
`projections 63. Due to the recesses and projections 63, the
`light emitting surface 62 is formed into a rough surface that
`diffuses light.
`According to the second embodiment of the present
`invention, the light emitted from each of the light-emitting
`diodes 25 is guided directly to the outside of the portable
`computer 1 from the light emitting surface 62 of the respec(cid:173)
`tive one of the guide sections 51. With this structure, the
`structural elements corresponding to the lenses 14 of the first
`embodiment are not necessary in this embodiment, and thus
`the number of parts can be further reduced. Accordingly, it
`is no longer necessary to mount the lenses 14 to the top cover
`10, and thus the number of work steps for assembling the
`portable computer can be reduced.
`The electronic apparatus according to the present inven(cid:173)
`tion are not limited to portable computers, but the present
`invention can be applied to some other devices as well such
`as handheld devices including PDA (Personal Digital Assis-
`35 tan ts) and data projectors.
`Additional advantages and modifications will readily
`occur to those skilled in the art. Therefore, the invention in
`its broader aspects is not limited to the specific details and
`representative embodiments shown and described herein.
`40 Accordingly, various modifications may be made without
`departing from the spirit or scope of the general inventive
`concept as defined by the appended claims and their equiva(cid:173)
`lents.
`What is claimed is:
`1. An electronic apparatus comprising:
`a housing;
`a resin-made holder provided in the housing and config(cid:173)
`ured to support a plurality of components;
`a light-emitting portion provided in the housing; and
`an optical guide formed integral with the holder and
`configured to guide light emitted from the light-emit(cid:173)
`ting portion to outside of the housing.
`2. The electronic apparatus according to claim 1, wherein
`the light-emitting portion includes at least one light source
`55 and the optical guide includes at least one columnar guide
`section corresponding to the at least one light source.
`3. The electronic apparatus according to claim 2, wherein
`the holder includes a through hole through which the at least
`one guide section passes, and a plurality of bridge portions
`configured to hold the at least one guide section within the
`through hole.
`4. The electronic apparatus according to claim 3, wherein
`the plurality of bridge portions each project from an outer
`circumference of the at least one guide section, and define a
`65 gap between the at least one guide section and the holder.
`5. The electronic apparatus according to claim 2, wherein
`the at least one guide section includes a first end surface that
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`US 7,012,802 B2
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`7
`faces the at least one light source, and a second end surface
`located at an opposite side to the first end surface and
`configured to output light emitted from the at least one light
`source.
`6. The electronic apparatus according to claim 5, wherein
`the housing includes a lens exposed to outside of the
`housing, and the second end surface of the at least one guide
`section is set to face the lens.
`7. The electronic apparatus according to claim 5, wherein
`the second end surface of the at least one guide section is
`exposed to the outside of the housing, and includes recesses
`and projections configured to diffuse light.
`8. The electronic apparatus according to claim 5, wherein
`the first end surface of the at least one guide section is larger
`than the second end surface.
`9. The electronic apparatus according to claim 1, wherein
`the housing houses a printed wiring board on which a
`plurality of connectors are mounted, and the holder includes
`a plurality of reinforcing portions configured to support the
`plurality of connectors.
`10. The electronic apparatus according to claim 9,
`wherein the plurality of connectors are arranged in line with
`intervals between adjacent pairs of the connectors and the
`plurality of reinforcing portions are plugged into gaps
`between the adjacent pairs of the connectors.
`11. The electronic apparatus according to claim 1,
`wherein the holder includes a plurality of support portions
`configured to support the components.
`12. An electronic apparatus comprising:
`a housing;
`a light-emitting portion provided in the housing;
`a resin-made optical guide provided in the housing and
`configured to guide light emitted from the light-emit(cid:173)
`ting portion to outside of the housing; and
`a holder formed integral with the optical guide and 35
`configured to support a plurality of components.
`13. An electronic apparatus comprising:
`a housing;
`a light-emitting portion provided in the housing; and
`a resin-made holder provided in the housing and including 40
`a plurality of support portions configured to support
`components and an optical guide configured to guide
`light emitted from the light-emitting portion to outside
`of the housing, the plurality of support portions and the
`optical guide being formed integral with each other.
`14. The electronic apparatus according to claim 13,
`wherein the light-emitting portion includes a plurality of
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`25
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`light sources and the optical guide includes a plurality of
`columnar guide sections corresponding to the plurality of
`light sources, respectively.
`15. The electronic apparatus according to claim 14,
`5 wherein the holder includes a through hole through which
`the plurality of guide sections pass, and a plurality of bridge
`portions configured to hold the plurality of guide sections
`within the through hole, the plurality of bridge portions
`projecting from outer circumferences of the plurality of
`10 guide sections and defining gaps between the plurality of
`guide sections and the holder.
`16. The electronic apparatus according to claim 14,
`wherein the plurality of guide sections each includes a first
`end surface that faces a respective one of the plurality of
`15 light sources, and a second end surface located on an
`opposite side to the first end surface and configured to output
`light emitted from a respective one of the plurality of light
`sources, each of the plurality of guide sections reducing its
`diameter from the first end surface towards the second end
`20 surface.
`17. An electronic apparatus comprising:
`a housing including a keyboard support section;
`a keyboard provided in the keyboard support section;
`a top cover configured to fix the keyboard to the keyboard
`support section and expose to outside of the housing;
`a resin-made holder provided in the housing and config(cid:173)
`ured to support a plurality of components;
`a light-emitting portion provided in the housing; and
`an optical guide formed integral with the holder and
`configured to guide light emitted from the light-emit(cid:173)
`ting portion to outside of the top cover.
`18. The electronic apparatus according to claim 17,
`wherein the top cover includes a lens exposed to the outside
`of the top cover and the optical guide guides light emitted
`from the light-emitting portion to the lens.
`19. The electronic apparatus according to claim 17,
`wherein the optical guide includes a first end surface that
`faces the light-emitting portion, and a second end surface
`located on an opposite side to the first end surface, the
`second end surface outputting light emitted from the light(cid:173)
`emitting portion and being exposed to the outside of the top
`cover.
`20. The electronic apparatus according to claim 17,
`wherein the second end surface includes recesses and pro(cid:173)
`jections configured to diffuse light.
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`45
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`* * * * *
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