 Integrating LED illumination system for machine vision systems |
| OF THE PREFERRED EMBODIMENT(S) Referring now to FIGS. 1-3, reference numeral 10 refers generally ... |
|
| Self-emission road device for straight or curved road surface |
| Therefore, the object of the present invention is to provide a self-emission road device which ... |
|
| LED retrofit method and kit for converting fluorescent luminaries |
| The benefits of what are commonly referred to as white LEDs are becoming increasingly known. Some ... |
|
| Differential light emission translucent light bowl and cap |
| It is a principal object of the present invention to provide an enclosure for the light source of ... |
|
| Adjustable lamp stand |
| The invention relates to a stand for holding a portable lamp of the trouble light variety. Portable ... |
|
| Worklight fixture with safety handles and integral storage compartment for additional bulb |
| A portable halogen worklight fixture according to the invention comprises a housing with a light ... |
|
| Fold-up navigation light |
| One aspect of the present invention is to provide a fold-up navigation light for boats and the like ... |
|
| Party riser |
| To solve this problem long-standing in the art, the present invention, hereinafter referred to as "... |
|
| Combined floral display and keepsake |
| A principal object of the present invention is to provide an improved combined floral display and ... |
|
| Floral stand with interchangeable components |
| This invention relates to a stand for holding a flower, floral arrangement, or one or more candles. ... |
|
|
Reflective type light-emitting diode
| Details |
Inventors: Suehiro, Yoshinobu;
Assignee: Toyoda Gosei Co., Ltd. (Aichi, JP)
Primary Examiner: O'Shea; Sandra
Assistant Examiner: Cranson, Jr.; James W
Attorney, Agent or Firm: McGinn & Gibb, PLLC
In a light source of a reflective type LED, a light-emitting element is mounted on the bottom surface of a concave reflecting mirror. Accordingly, light emitted horizontally from the light-emitting surface of the light-emitting element is also reflected by the reflecting mirror, so that all components of light emitting from the light-emitting element are concentrated on a region within a predetermined extent from an axis perpendicular to the light-emitting surface so as to irradiate the region. Thus, the end portion of the reflecting mirror provided in opposition to the light source need not be made close to the height of the light-emitting surface of the light-emitting element 2 in the light source. Hence, it is possible to obtain high external radiating efficiency even in the case where the reflecting mirror is provided far from the light-emitting element. Thus, the degree of freedom for designing the reflecting mirror increases, so that the reflective type light-emitting diode can be widely applied. |
|
DETAILED DESCRIPTION It is therefore an object of the present invention to provide a reflective type light-emitting diode in which high external radiating efficiency can be obtained to increase the degree of freedom for designing a reflection mirror even in the case where an end portion of a reflecting mirror does not reach the height of a light-emitting surface of a light-emitting element.
(1) According to the invention, there is provided a reflective type light-emitting diode having: a light source including a light-emitting element, leads for supplying electric power to the light-emitting element, and a concave reflecting mirror provided around the light-emitting element; and a reflecting mirror provided in opposition to the light source.
In the reflective type LED configured as described above, the concave reflecting mirror is provided around the light-emitting element of the light source.
Hence, light emitted from a light-emitting surface of the light-emitting element is not diffused horizontally but concentrated on a region within a predetermined extent from an axis perpendicular to the light-emitting surface.
For this reason, all the reflecting mirror provided in opposition to the light source has to do is to reflect light irradiating the region within the predetermined extent from the axis perpendicular to the light-emitting surface.
Hence, the end portion of the reflecting mirror need not reach the height of the light-emitting surface, so that the degree of freedom for designing the reflecting mirror can be increased while the reflecting mirror can be disposed to be far from the light source.
Moreover, all components of light radiated from the light source can be substantially reflected by the reflecting mirror so as to be radiated to the outside with high external radiating efficiency.
In such a manner, there is provided a reflective type LED in which high external radiating efficiency can be obtained to increase the degree of freedom for designing the reflecting mirror even in the case where the end portion of the reflecting mirror does not reach the height of the light-emitting surface of the light-emitting element
|
|
Light Fixtures 
