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81. 发明专利

JP2001035208A VEHICLE LAMP USING LED 失效
公开(公告)号：JP2001035208A
公开(公告)日：2001-02-09
申请号：JP20947499
申请日：1999-07-23
申请人： ICHIKOH INDUSTRIES LTD
发明人： OOKAWATO MASAYA , TSUNODA KOJI
IPC分类号： F21S8/10
摘要： PROBLEM TO BE SOLVED: To dispense with a current limiting resistor in a lamp comprising a plurality of LED connected between the LED and a power source or ground and also connected LEDs to each other by using a resistance wire as the wiring. SOLUTION: When an arbitrary point on the current inlet side of a positive- side wiring 8 is A, and an arbitrary point on the current outlet side of a ground wire 7 is B, the total length of the wirings 7 and 8 from A to B is the same for any LED. In LED 1, the length of the positive-side wiring 8 from point A to LED 1 is P1, the length of the ground wire 7 from LED 1 to point B is Q1, and the length of a resistance line from A to B is P1+Q1. In LED 2, the length of the positive-side wiring 8 from point A to LED 2 is P2, the length of the ground wire 7 from LED 2 to point B is Q2, and the length of the resistance wire from A to B is P2+Q2. The length of the resistance wire is equal to P1+Q1=P2+Q2, and for other LED 3 and LED 4, the currents carried to all the LED are equal to each other from similar principle.

82. 发明专利

JP2000357401A VEHICULAR LIGHT 失效
公开(公告)号：JP2000357401A
公开(公告)日：2000-12-26
申请号：JP16705099
申请日：1999-06-14
申请人： ICHIKOH INDUSTRIES LTD
发明人： ASAKA KENICHI
IPC分类号： F21S2/00 , F21V5/00
摘要： PROBLEM TO BE SOLVED: To enhance appearances, to prevent a solvent from cracking and to increase light shielding effects. SOLUTION: In this vehicular light, a housing 5 is disposed in the outer surface and/or inner surface of a junction part 40 of integrated lenses 2 and 3. Consequently, a welded burr 4 is housed in the housing 5, the welded burr 4 does not degrade appearances and the appearances of the light are enhanced. A cover 6 is disposed in the outer and/or inner surface of the junction part 40 of the integrated lenses 2 and 3. Accordingly, the junction part 40 is covered with the cover 6 so that the junction part 40 can be prevented from being cracked because of no solvent applied on the junction part 40. A projecting part 7 is disposed in the outer and/or inner surface of the junction part 40 of the integrated lenses 2 and 3. Therefore, the size of the projecting part 7 can be made constant so that the space dimensions between the projecting part 7 and the tip end of a compartment wall can be made constant. The light from one lamp cannot leak out to the other lamp and light shielding effects are great.

83. 发明专利

JP2000356774A BACKLIGHT FOR COLOR LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2000356774A
公开(公告)日：2000-12-26
申请号：JP17014599
申请日：1999-06-16
申请人： ICHIKOH INDUSTRIES LTD
发明人： ARITAKE YASURO
IPC分类号： G02F1/1335 , F21V8/00 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a backlight for color liquid crystal display device with an excellent balance of colors and without color non-uniformity. SOLUTION: Because a light source 4, which is placed closest to a light transmission plate 2, is offset toward the rear side of the light transmission plate 2 in the thickness direction of the light transmission plate 2, an incident angle θ of light from the light source 4 is varied and the luminance of the light source 4 in the adjacent region E is weakened. Consequently, the luminance of the light source 4 becomes constant (flat) irrespective of the distance from the light source 4 and its balance with other light sources 5, 6 gets excellent so as to generate no color non-uniformity.

84. 发明专利

JP2000340008A LIGHTING FIXTURE FOR VEHICLE 失效
公开(公告)号：JP2000340008A
公开(公告)日：2000-12-08
申请号：JP14676499
申请日：1999-05-26
申请人： ICHIKOH INDUSTRIES LTD
发明人： AKIYAMA KIYOHIRO
IPC分类号： F21S8/10 , F21V7/09
摘要： PROBLEM TO BE SOLVED: To enhance illuminance and make a size small by positioning dividing lines for dividing a reflecting surface into plural blocks crossing to a radiation direction passing a light source bulb on plural rotating paraboloids having different focal distances, using the light source bulb as a common focal point, making the focal distance gradually smaller toward distant dividing lines to the light source bulb, and connecting the dividing lines with diffuse reflection base reflection surface. SOLUTION: Nine dividing lines 7, 71R-74R dividing a reflecting surface into eight blocks (61L), 61R-64R are positioned on five rotating paraboloids having a common focal point FP and different focal distances, and the focal distances FL-FL4 are made smaller toward from near one to a light source bulb to distant ones. Since the blocks (61L), 61R-64R stand in the reflecting direction, a solid angle to the reflecting surface 6 of the light source bulb is made large. Beam density (beam amount) is made high by a rate equivalent to increase in the solid angle, and illuminance of a lighting fixture is increased. In the case where the illuminance of the lighting fixture is made equal to the conventional one, the lighting fixture can be made small by a rate equivalent to the standing up of the reflecting surface 6.

85. 发明专利

JP2000331513A VEHICULAR LIGHTING FIXTURE 失效
公开(公告)号：JP2000331513A
公开(公告)日：2000-11-30
申请号：JP14328899
申请日：1999-05-24
申请人： ICHIKOH INDUSTRIES LTD
发明人： SHINOZUKA MICHIYOSHI
IPC分类号： F21S8/10 , F21V7/09
摘要： PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture having a reduced error between a focus point of a reflecting surface and a filament of a light source bulb and being capable of obtaining reflected light close to parallel light. SOLUTION: A reflecting surface 100 comprises a first reflecting surface 101 and a second reflecting surface 102 which are constituted with two of paraboloids of revolution. A filament 2 of a light source bulb is disposed to extend through a first focus point F1 of the first reflecting surface 101 and a second focus point F2 of the second reflecting surface 102. Consequently, because the filament 2 extends through two focus points F1, F2, an error between the three-dimensional filament 2 and the zero-dimensional focus points F1, F2 can be reduced compared with the one having one focus point, whereby reflecting light L2 close to parallel light can be obtained.

86. 发明专利

JP2000311508A VEHICULAR LIGHTING FIXTURE 失效
公开(公告)号：JP2000311508A
公开(公告)日：2000-11-07
申请号：JP11859999
申请日：1999-04-26
申请人： ICHIKOH INDUSTRIES LTD
发明人： FUJIKI KIYOJI
IPC分类号： F21V9/08 , F21S8/10
摘要： PROBLEM TO BE SOLVED: To prevent false recognition of a signal lamp, reduce the number of parts and attain cost reduction. SOLUTION: A green colored part 6 is subjected which obtains umber colored light L3 by transmitting a colored lens 2 that is light transmissive and pink colored on an inner surface of the colored lens 2. Consequently, strong light L4 such as sun light is colored in umber color when it is passed through the colored lens 2 and the colored part 6 so that umber colored light is reflected to a reflection surface 11 and is irradiated in an umber color to the outside through the colored lens 2 and the colored part 6 again according to reflecting at the reflection surface 11. Accordingly, it is possible to prevent the missing of a functional color and false recognition of a signal lamp since pink colored light is not emitted even though the strong light L4 such as sun light, etc., enters a lighting room at all angles. Moreover, reduction of the number of parts and cost is attained as a color cap is made unnecessary.

87. 发明专利

JP2000311506A VEHICULAR LIGHTING FIXTURE 失效
公开(公告)号：JP2000311506A
公开(公告)日：2000-11-07
申请号：JP11860199
申请日：1999-04-26
申请人： ICHIKOH INDUSTRIES LTD
发明人： FUJIKI KIYOJI , AOKI YOSHIHIRO
IPC分类号： F21S8/10
摘要： PROBLEM TO BE SOLVED: To prevent false recognition of a signal lamp. SOLUTION: A colored membrane 112 which is light transmissive and has an almost same color as a colored cap is subjected both color processing as well as surface processing at an inner surface 11 of a lamp housing 1. Consequently, outgoing light of reflection light L2 that is strong light L1 enters a lighting room and is emitted to the outside obtains a functional color as same as outside irradiating light which is emitted from a light source bulb and passes through a colored cap and a colored lens, because the strong light L1 such as sun light e.g. enters the lighting room through the colored lens and is reflected at the inner surface 11 of the lamp housing 1, and is transmitted through the colored membrane 112 that has an almost same color as the colored cap when the reflection light L2 is emitted again to the outside through the colored lens. Thus, a functional color does not weaken by outgoing light of the functional color when a light source bulb is lit. There is no fear of a false lighting of a color other than the functional color by means of outgoing light of a functional color when the light source bulb is not lit. Consequently, it is possible to prevent the missing of the functional color.

88. 发明专利

JP2000289522A VEHICULAR DEVICE 失效
公开(公告)号：JP2000289522A
公开(公告)日：2000-10-17
申请号：JP9664799
申请日：1999-04-02
申请人： ICHIKOH INDUSTRIES LTD
发明人： SEKIGUCHI SHIN
IPC分类号： B60Q1/00 , F21S8/10
摘要： PROBLEM TO BE SOLVED: To reduce a cost. SOLUTION: A housing 1 and attaching pin 3 are integrally molded. In the housing 1, a part 13 integrally provided with the attaching pin 3 and the other part 10 are connected through a thin wall hinge 11 so as to be openable and closable. In molding, the attaching pin part 13 and the other part 10 are closed, thereby drawing a mold. At the time of attaching a vehicular body, the attaching pin part 13 and the other part 10 are opened, thereby defining a room 12. Therefore, the attaching pin 3 can be integrally provided on the housing 1 without using a slide mold to reduce a cost.

89. 发明专利

JP2000287471A MOTOR DRIVE CONTROL CIRCUIT 失效
公开(公告)号：JP2000287471A
公开(公告)日：2000-10-13
申请号：JP36722399
申请日：1999-12-24
申请人： ICHIKOH INDUSTRIES LTD
发明人： HAYASHI KAZUOKU
IPC分类号： B60R1/074 , B60J1/17 , B60R1/06 , E05F15/10 , H02H7/093 , H02P1/22 , H02P3/08
摘要： PROBLEM TO BE SOLVED: To obtain a motor drive control circuit which is free from malfunctioning and can control the drive of the motor securely. SOLUTION: A lead relay L whose drive coil LC is excited by a locking current generated when a motor M is locked and whose lead switch LS is turned on/off by the excited drive coil LC, and a relay circuit Re whose exciting coil RC is demagnetized when the lead switch LS is turned on/off and whose movable contact RS is turned off by the demagnetization of the exciting coil RC to cut off current application to the motor M, are provided. As a result, the locking state of the motor M is detected by the lead relay L and the current application to the motor M is cut off by the relay circuit Re in accordance with the detection of the lead relay L. Therefore, the locking state of the motor M can be judged clearly without variation in comparison with the judgement in the case of current control using electronic components, so that the drive of the motor M can be controlled securely without malfunctioning.

90. 发明专利

JP2000268623A PLANE COLOR LIGHT EMITTING DEVICE 失效
公开(公告)号：JP2000268623A
公开(公告)日：2000-09-29
申请号：JP6749199
申请日：1999-03-12
申请人： ICHIKOH INDUSTRIES LTD
发明人： ARITAKE YASURO
IPC分类号： G02F1/1335 , F21V8/00 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To increase light quantity of a light source located on the deepest side of a reflecting mirror without increasing a current value by forming an internal surface on a depth side in the reflecting mirror by two flat reflecting surfaces to be V-shaped in cross section in a surface direction of a light guide plate. SOLUTION: A reflecting mirror 3 mounted on an end face of a light guide plate 2 is formed into a curved shape in cross section opened to the one end face side and an internal surface on a depth side is formed by two flat reflecting surfaces 3a to be V-shaped in cross section in a surface direction A of the light guide plate 2. A R light source 4 arranged on the internal surface of the reflecting mirror 3 is arranged at a first nearest to the light guide plate 2, G light beam 5 is arranged at a second nearest and a B light source 6 is at a third nearest. Because light in upper and lower areas 6b on the depth side of the B light source 6 is reflected toward a gap S in a united state without being much scattered by two reflecting surfaces 3a because the internal surface on the depth side in the reflecting mirror 3 is formed by these two flat reflecting surfaces 3a of V-shapes in cross section, and light as it is can be guided to the light guide plate 2.

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