WO2015154542A1

WO2015154542A1 - Led spot light capable of adjusting lens focus

Info

Publication number: WO2015154542A1
Application number: PCT/CN2015/000152
Authority: WO
Inventors: 林璧光
Original assignee: 林璧光
Priority date: 2014-04-07
Filing date: 2015-03-09
Publication date: 2015-10-15
Also published as: CN203757523U

Abstract

An LED (Light Emitting Diode) spot light capable of adjusting lens focus comprises a light housing (1), an LED light source, a radiator (2), a condensing lens (3), a condensing lens seat (4) and a focal length adjuster (5). The radiator (2) is fixed in the light housing (1), the LED light source is fixed on the radiator (2), the condensing lens (3) is fixed on the condensing lens seat (4), and the condensing lens seat (4) is mounted at the front end (6) of the light housing (1). The focal length adjuster (5) comprises a focus-adjusting knob (7), a coaxially-fixed gear (8), a rack (9) arranged on the condensing lens seat (4) and meshed with the gear (8), and guide rods (11, 12) arranged on the condensing lens seat (4) and mated with the sliding seat (10) of the light housing (1), wherein there are more than three guide rods (11, 12), these guide rods are respectively arranged on the condensing lens seat (4) and are respectively mated with the corresponding sliding seats (10, 13) on the light housing (1), and a telescopic outer cover (14) is arranged between the condensing lens seat (4) and the front end (6) of the light housing (1), and covers the rack (9) and the guide rods (11, 12) on the condensing lens seat (4) therein. The abovementioned spot light can guarantee the stability of the condensing lens seat (4) in movement, and also guarantee the tidiness and aesthetic sense of the exterior of the spot light for the reason that the spot light is free from rubbing with or being jammed by the light housing (1).

Description

LED type spotlight for adjusting lens focus

Technical field

The utility model relates to a spotlight for photography, camera or professional illumination, in particular to an LED type spotlight for adjusting lens focusing.

Background technique

At present, there are spotlights for photography, video or professional lighting. From the focus adjustment method, it can be divided into two types: spotlights for adjusting the focus of the light source and spotlights for adjusting the focus of the lens.

An LED type spotlight for photography or videography of the Chinese Patent No. 201320187482.7, which is filed by the applicant, is a spotlight for adjusting the focus of the light source, and the heat sink is installed in the lamp housing through a focus adjuster, and the LED light source is fixedly mounted on the light source. On the front end surface of the heat sink, the lens is fixedly mounted on the front port of the lamp housing.

A high-power LED thread spotlight of Chinese Patent No. 201320187482.7 is a spotlight for adjusting the focus of the lens. The LED light source and its heat sink are mounted and fixed in the lamp housing, and the lens is fixed on the front tube, the front tube and the lamp housing. The port is provided with a sliding fit, and the outer side of the front cylinder is provided with a gear on the outer side of the front cylinder, and the outer side of the front cylinder is provided with a guide column on the outer side, and the outer side of the front cylinder is provided with a bearing, and the guide post and the bearing respectively cooperate with the chute groove in the lamp housing. . The shortcomings of this technical solution are as follows: First, the smoothness of the movement of the front cylinder is not ideal, and it is easy to cause the upper and lower sides to rub against the lamp housing or even get stuck; second, the rack, the guide rod and the bearing on the outer side of the front cylinder can be seen outside. It affects the cleanliness and beauty of the exterior of the spotlight.

Summary of the invention

In order to overcome the existing spotlights of the same type of lens adjustment, the front tube movement stability is not ideal, and it is easy to cause the upper and lower sides to rub against the lamp housing or even get stuck. The outer rack sees the rack, the guide rod and the bearing on the outer side of the front tube, affecting the outside of the spotlight. The object of the present invention is to provide an LED type spotlight for adjusting the focus of the lens, which can overcome the defects of the prior art.

The technical solution adopted by the utility model to solve the technical problem thereof is: an LED type spotlight for adjusting lens focusing, comprising a lamp housing and an LED light source, a heat sink, a collecting lens, a collecting lens holder, and a focal length disposed on the lamp housing The regulator, wherein the heat sink is fixed and fixed in the lamp housing, the LED light source is fixedly mounted on the front end surface of the heat sink, the collecting lens is fixedly mounted on the collecting lens holder, and the collecting lens holder is mounted on the front end of the lamp housing through the focus adjuster The focus adjuster includes a focus knob that is rotatably coupled to the lamp housing, a gear fixed coaxially with the focus knob, a rack fixed to the concentrating lens holder and meshed with the gear, and fixed to the concentrating lens holder. a guide rod that cooperates with the sliding sleeve of the lamp housing, and is characterized in that: the guiding rod is three or more Separately disposed on the concentrating lens holder, three or more guiding rods respectively cooperate with corresponding sliding seats on the lamp housing, and a retractable outer cover is disposed between the concentrating lens holder and the front end of the lamp housing, and the retractable outer cover condensing lens holder The upper rack and guide rod are placed inside.

The front side of the concentrating lens holder of the above technical solution may be hinged with an opening and closing visor.

In the concentrating lens holder of the above technical solution, a honeycomb panel may be disposed in front of the concentrating lens.

The outside of the lamp housing of the above technical solution may be provided with a spotlight mounting bracket.

In the above technical solution, the focusing knob rotated on the lamp housing, the gear fixed coaxially with the focusing knob, and the rack fixed on the collecting lens holder and meshed with the gear may have two sets and are respectively disposed on the lamp housing And corresponding positions on both sides of the condenser lens holder.

The utility model has the beneficial effects that since more than three guide rods are arranged on the concentrating lens holder, three or more guiding rods respectively cooperate with corresponding sliding seats on the lamp housing, so the concentrating lens holder has good movement stability and does not The lamp housing is rubbed or stuck; since the condensing lens holder and the front end of the lamp housing are provided with a retractable outer cover, the retractable outer cover covers the rack and the guide bar on the concentrating lens holder on the inner surface, so the outside of the illuminating lamp is relatively neat and tidy. Beautiful.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

DRAWINGS

1 is a perspective view of an embodiment of the present invention.

Figure 2 is a schematic view of the side of the cutaway portion of Figure 1.

In the figure: 1, lamp housing; 2, heat sink; 3, concentrating lens; 4, concentrating lens holder; 5, focus adjuster; 6, front end; 7, focusing knob; 8, gear; 9, rack 10, sliding seat; 11 and 12, guide rod; 13, sliding seat; 14, retractable cover; 15, opening and closing visor; 16, honeycomb panel; 17, spotlight mounting bracket.

detailed description

Referring to FIGS. 1 to 2, the LED-type spotlight in which the adjustment lens is focused includes a lamp housing 1 and an LED light source (not shown) disposed on the lamp housing 1, a heat sink 2, a collecting lens 3, and a collecting lens holder 4. a focal length adjuster 5, wherein the heat sink 2 is mounted and fixed in the lamp housing 1, the LED light source is mounted and fixed on the front end surface of the heat sink 2, and the collecting lens 3 is mounted and fixed on the collecting lens holder 4, and the collecting lens holder 4 Mounted on the front end 6 of the lamp housing 1 by the focus adjuster 5, the focus adjuster 5 includes a focus knob 7 rotatably fitted to the lamp housing 1, a gear 8 fixed coaxially with the focus knob 7, and fixed to the collecting lens a rack 9 meshing with the gear 8 on the seat 4, a guide rod 11 fixed to the concentrating lens holder 1 and engaging with the sliding seat 10 of the lamp housing 1, wherein the guide rods 11, 12, etc. are Four corners which are respectively disposed on the rear side of the concentrating lens holder 4 The four guide rods 11 and 12 respectively cooperate with the corresponding sliding

seats

10, 13 and the like on the lamp housing 1, and the telescopic lens holder 4 and the front end 6 of the lamp housing 1 are provided with a retractable outer cover 14 which is expandable and contractible. The outer cover 14 covers the rack 9 and the guide bars 11, 12 on the condensing lens holder 4.

In addition, the front side of the concentrating lens holder 4 is hinged with four opening and closing visors 15 and the like; the concentrating lens holder 4 is provided with a honeycomb panel 16 on the front side of the condensing lens 3; and the outside of the lamp housing 1 is provided with a spotlight mounting bracket 17 Rotating and adjusting the focus knob 7 on the lamp housing 1, the gear 8 fixed coaxially with the focus knob 7 and the like, and the rack 9 fixed to the concentrating lens holder 4, etc., are provided with two sets and respectively set At corresponding positions on both sides of the lamp housing 1 and the concentrating lens holder 4.

Claims

An LED type spotlight for adjusting lens focusing, comprising a lamp housing and an LED light source, a heat sink, a collecting lens, a collecting lens holder and a focus adjuster disposed on the lamp housing, wherein the radiator is fixed and fixed in the lamp housing, and the LED The light source is mounted on the front end surface of the heat sink, the concentrating lens is mounted on the concentrating lens holder, the concentrating lens holder is mounted on the front end of the lamp housing through a focus adjuster, and the focus adjuster includes a tweak that is rotatably fitted to the lamp housing. a focus knob, a gear fixed coaxially with the focus knob, a rack fixed to the concentrating lens holder and meshed with the gear, and a guide rod fixed on the concentrating lens holder and matched with the sliding seat of the lamp housing Yes: the guide rods are three or more and are disposed on the concentrating lens holder. The three or more guiding rods respectively cooperate with the corresponding sliding seats on the lamp housing, and the concentrating lens holder and the front end of the lamp housing are retractable. A cover, the retractable cover covers the rack and the guide bar on the concentrating lens holder.
The LED-type spotlight for adjusting a lens focus according to claim 1, wherein the guide rod has four and is respectively disposed on four corners of the rear side of the concentrating lens holder, and the four guide rods respectively and the lamp housing The corresponding sliding seat fits.
The LED type spotlight for adjusting lens focusing according to claim 1 or 2, wherein the front side of the concentrating lens holder is hinged with an opening and closing visor.
The LED type spotlight for adjusting lens focusing according to claim 1 or 2, wherein the concentrating lens holder is provided with a honeycomb plate in front of the condensing lens.
The LED type spotlight for adjusting lens focusing according to claim 1 or 2, wherein the outer side of the lamp housing is provided with a spotlight mounting bracket.
The LED-type spotlight for adjusting a lens focus according to claim 1 or 2, wherein said focusing knob that is rotatably fitted to the lamp housing, a gear fixed coaxially with the focus knob, and fixed to the concentrating lens holder The rack meshing with the gear is provided with two sets and respectively disposed at corresponding positions on both sides of the lamp housing and the concentrating lens holder.