# US 9,435,494 B2 · LED lamp

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- Number: US 9,435,494 B2
- Document ID: US9435494B2
- Status: Granted
- Kind: B2
- Application number: 14/323,574
- Filed: 2014-07-03
- Published: 2014-10-23
- Granted: 2016-09-06
- Earliest claimed: 2008-06-17
- Assignees: Iris Ohyama Inc.
- Applicants: Iris Ohyama Inc.
- Inventors: Hideharu Osawa
- Web page: https://patentgrep.com/patent/US9435494B2

## CPC

- F21K 9/275: Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings (F21K9/278 takes precedence)
- F21K 9/272: Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts (F21K9/278 takes precedence)
- F21K 9/65: specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
- F21V 19/02: with provision for adjustment, e.g. for focusing
- F21V 23/002: {Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm}
- F21V 14/02: by movement of light sources {(in vehicle head lamps F21S41/657)}
- F21Y 2103/10: comprising a linear array of point-like light-generating elements
- F21Y 2115/10: Light-emitting diodes [LED]
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

An LED lamp A1 includes an LED unit 1 in the shape of a straight tube with a plurality of LED modules 12 fixed therein, and also includes a pair of bases 2 that receive electric power from outside and are attached to the ends of the LED unit 1 spaced in the longitudinal direction of the LED unit. The LED unit 1 and the bases 2 are rotatable relative to each other about an axis extending in the longitudinal direction. With this arrangement, the direction of light emission can be changed, with the LED lamp attached to a general-use fluorescent lighting fixture.

## Claims

### Claim 1

An LED lamp comprising:
an LED unit including a straight tube and a plurality of light emitting diodes, the tube having an axis extending in a longitudinal direction of the tube, the plurality of light emitting diodes being fixed in the straight tube;
a base attached to an end of the tube and provided with an external terminal for receiving electric power from outside;
a rotational shaft disposed between the LED unit and the base and configured to rotate relative to at least one of the tube and the base, the rotational shaft being formed separate from the tube and the base; and
a first engagement portion formed on the tube for connecting the tube and the rotational shaft to each other;
wherein the LED unit and the base are rotatable relative to each other about the axis of the tube, and
the rotational shaft includes an end formed with a second engagement portion coming into contact with the first engagement portion.

### Claim 2 (depends on 1)

The LED lamp according to claim 1, further comprising a wiring cable, wherein the base includes a circuit board connected to the external terminal, and wherein the circuit board and the LED unit are connected to each other via the wiring cable.

### Claim 3 (depends on 2)

The LED lamp according to claim 2, wherein the wiring cable is configured to bridge across the rotational shaft.

### Claim 4 (depends on 1)

The LED lamp according to claim 1, wherein the rotational shaft is cylindrical and formed with a slit extending from said end of the rotational shaft along the axis of the tube.

### Claim 5 (depends on 1)

The LED lamp according to claim 1, wherein the LED unit is rotatable relative to the base in a range of 0° through 180°.