CN209784707U - Light-adjusting insert for projection lens base - Google Patents
Light-adjusting insert for projection lens base Download PDFInfo
- Publication number
- CN209784707U CN209784707U CN201920827116.0U CN201920827116U CN209784707U CN 209784707 U CN209784707 U CN 209784707U CN 201920827116 U CN201920827116 U CN 201920827116U CN 209784707 U CN209784707 U CN 209784707U
- Authority
- CN
- China
- Prior art keywords
- hole
- inserted sheet
- sheet body
- adjusting
- piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Abstract
The utility model relates to an optical equipment technical field discloses a projecting lens seat inserted sheet of adjusting luminance, including inserted sheet body and the subassembly of adjusting luminance, the inserted sheet body is circular piece, and middle the opening has a through-hole, adjust luminance the unit mount in the back of inserted sheet body, the subassembly of adjusting luminance forms a regulation hole, the through-hole position on regulation hole and the inserted sheet body corresponds, thereby adjust luminance the size that the subassembly changed the regulation hole and change the light quantity that passes through the front of inserted sheet body sets up the cassette, the cassette is used for fixed figure piece, the fretwork pattern of figure piece corresponds with the through-hole position on the inserted sheet body. The utility model discloses be in the same place two function integrations of figure piece and light quantity regulation on the inserted sheet, conveniently cooperate in projection lens, it is more convenient to use, and the effect is better.
Description
Technical Field
The utility model relates to an optical equipment technical field, concretely relates to projecting lens seat inserted sheet of adjusting luminance.
Background
The projection lens is used as a necessary optical device for special light and shadow effects in the photographic industry, and different dimming sheets are replaced according to different scenes when the projection lens is used. Different graphic sheets are fixedly arranged on the light adjusting sheet so as to realize the light and shade effect or the background pattern in the scene.
The light-adjusting sheet can only replace a graphic sheet, the luminous flux can not be adjusted, in order to reduce the light intensity or reduce the projection area of the graphic sheet, the light intensity of the graphic sheet can be shielded when the light-adjusting sheet is inserted, or another light-shielding sheet is inserted when the light-adjusting sheet is inserted, so that the light intensity of the graphic sheet can be adjusted.
Due to the structure of the projection lens, the light-shielding film cannot be effectively inserted, or the light flux of the graphic film cannot be effectively controlled.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem, provide a projecting lens seat inserted sheet of adjusting luminance, be in the same place two function integrations that figure piece and light quantity were adjusted on the inserted sheet, convenient cooperation is in projection lens, and it is more convenient to use, and the effect is better.
the utility model adopts the technical proposal that:
The utility model provides a projecting mirror seat inserted sheet of adjusting luminance, characterized by, includes the inserted sheet body and adjusts luminance the subassembly, the inserted sheet body is circular piece, and middle division has the through-hole, adjust luminance the unit mount in the back of inserted sheet body, adjust luminance the subassembly and form a regulation hole, the through-hole position on regulation hole and the inserted sheet body corresponds, thereby adjust luminance the size that the subassembly changed the regulation hole and change the light quantity that passes through the front of inserted sheet body sets up the cassette, the cassette is used for fixed figure piece, the fretwork pattern of figure piece corresponds with the through-hole position on the inserted sheet body.
Furthermore, the clamping seat comprises an elastic pressing sheet, one end of the elastic pressing sheet is fixed on the inserting sheet body through a fastening piece, and when the graphic sheet is inserted, the graphic sheet is pressed between the elastic pressing sheet and the inserting sheet body through the elastic pressing sheet.
furthermore, the number of the clamping seats is three, the clamping seats are uniformly distributed on a 270-degree circular arc of a concentric circle of the inserting sheet body, and the vacant positions of the clamping seats are used for inserting the graphic sheets.
further, be equipped with the handle on the inserted sheet body, the handle is located vacancy position one side.
Further, the middle through hole of inserted sheet body is the round hole.
Further, the subassembly of adjusting luminance is including setting up the clamp plate at the inserted sheet body back, and it has the through-hole to open in the middle of the clamp plate, the through-hole in the middle of the clamp plate is corresponding with the through-hole in the middle of the inserted sheet body insert a plurality of light adjusting piece between clamp plate and the inserted sheet body, a plurality of light adjusting piece forms the regulation hole in the through-hole of inserted sheet body and clamp plate, and the size in regulation hole is adjusted to the insertion distance of light adjusting piece.
Furthermore, the number of the dimming sheets is four, and the adjusting holes formed by the four dimming sheets are rectangular holes.
Further, the subassembly of adjusting luminance includes light ring cover and regulation pole, the back of inserted sheet body sets up the change, light ring cover sets up on the change, and the centre bore of light ring cover corresponds with the through-hole of inserted sheet body, still sets up the driving lever on the change, the change is stirred to the driving lever and is rotated, and light ring cover is under the drive of change, adjusts the aperture in centre bore.
The utility model has the advantages that:
(1) The front side of the inserting sheet is fixed with a pattern sheet, and the back side of the inserting sheet is used for adjusting the luminous flux, so that the structure is compact, and the operation is convenient;
(2) the structure of the projection lens is not changed, and the original single-function dimming sheet is directly replaced.
Drawings
Fig. 1 is a schematic front structure diagram of an insert sheet according to a first embodiment of the present invention;
fig. 2 is a schematic view of a back structure of an insert sheet according to a first embodiment of the present invention;
FIG. 3 is a schematic structural view of an insert sheet fixing square pattern sheet according to a first embodiment of the present invention;
Fig. 4 is a schematic front structure diagram of an insert sheet according to a second embodiment of the present invention;
Fig. 5 is a schematic view of a back structure of an insert sheet according to a second embodiment of the present invention;
FIG. 6 is a schematic structural view of an insert-fixing square figure sheet according to a second embodiment of the present invention;
Fig. 7 is a schematic structural view of a circular pattern sheet fixed by an insertion sheet according to a second embodiment of the present invention.
The reference numbers in the drawings are respectively:
1. the insert body; 2, a handle;
3. A through hole; 4, adjusting holes;
5. A card holder; 6, a graphic sheet;
7. Elastic tabletting; 8, riveting;
9. pressing a plate; 10, a through hole;
11. A dimming sheet; 12, rotating the ring;
13. An aperture cover; 14, a screw;
15. A deflector rod; a central bore.
Detailed Description
The following describes in detail the embodiments of the light-adjusting insert for a projection lens holder according to the present invention with reference to the accompanying drawings.
projecting lens seat inserted sheet of adjusting luminance includes inserted sheet body 1 and the subassembly of adjusting luminance, and inserted sheet body 1 is the circular piece, sets up handle 2 on the circular piece, and it has circular through-hole 3 to open in the middle of the circular piece, nevertheless does not inject and must want circularly. The subassembly of adjusting luminance is installed in the back of inserted sheet body 1, and the subassembly of adjusting luminance forms an adjusting hole 4, and adjusting hole 4 corresponds with 3 positions of through-hole on the inserted sheet body 1, thereby the subassembly of adjusting luminance changes the light quantity that the size of adjusting hole 4 passes through, sets up cassette 5 in the front of inserted sheet body 1, and cassette 5 is used for fixed figure piece 6, and the fretwork pattern of figure piece 6 corresponds with 3 positions of through-hole on the inserted sheet body 1.
the clamping seat 5 comprises an elastic pressing sheet 7, one end of the elastic pressing sheet 7 is fixed on the inserting sheet body 1 through a fastening piece, and when the graphic sheet 6 is inserted, the elastic pressing sheet 7 is pressed between the elastic pressing sheet 7 and the inserting sheet body 1. The two side ends of the elastic pressing sheet 7 slightly tilt upwards, so that the graphic sheet 6 can be conveniently inserted. The clamping seats 5 are arranged in a three-degree mode and uniformly distributed on a 270-degree circular arc of a concentric circle of the inserting sheet body 1, and the vacant positions of the clamping seats 5 are used for inserting the graphic sheets 6. The vacant position is positioned at one side of the handle 2, so that the graphic sheet 6 can be conveniently inserted. The clamping seat 5 arranged in an arc shape can fix not only the rectangular pattern piece 6, but also the circular pattern piece 6.
The first embodiment is as follows:
referring to fig. 1 to 3, the adjusting light assembly of the present embodiment implements adjustment of the rectangular hole. A pressing plate 9 is fixed on the back of the inserting piece body 1 through a rivet 8 or a fastening screw, a through hole 10 is formed in the middle of the pressing plate 9, the through hole 10 in the middle of the pressing plate 9 corresponds to the through hole 3 in the middle of the inserting piece body 1, four light adjusting pieces 11 are inserted between the pressing plate 9 and the inserting piece body 1, rectangular adjusting holes 4 are formed in the through holes of the inserting piece body 1 and the pressing plate 9 through the light adjusting pieces 11, and the size of the adjusting holes 4 is adjusted through the inserting distance of the light adjusting pieces 11. The number of the light adjusting sheets 11 can be changed, for example, six sheets, and the adjusting holes 4 are formed in a hexagonal shape.
when the adjustable light-adjusting plate is used, the graphic sheet 6 is fixed on the clamping seat 5 on the front surface of the inserting sheet body 1, and the four light-adjusting sheets 11 are adjusted to enable the size of the adjusting hole 4 to reach a proper size. The insert body 1 which is adjusted is inserted into the insert hole of the projection lens base, the light source is turned on, and a proper light and shadow effect is projected. In addition, the light adjusting sheet 11 can be finely adjusted after the insert sheet body 1 is inserted into the projection lens seat, and the adjusting hole 4 can be corrected.
Example two:
Referring to fig. 4 to 7, the adjusting light assembly of the present embodiment performs adjustment of the circular hole. A rotary ring 12 is arranged on the back surface of the insert body 1, a diaphragm cover 13 is arranged on the rotary ring 12, and fixing parts of the diaphragm cover 13 and the rotary ring 12 are fixed on the insert body 1 through screws 14. When the rotary ring 12 rotates, the blades of the diaphragm cover 13 rotate, so that the central hole 16 of the diaphragm cover 13 changes in size. The central hole 16 of the aperture cover 13 corresponds to the through hole of the insert body 1, the deflector rod 15 is further arranged on the rotary ring 12, the deflector rod 15 deflects the rotary ring 12 to rotate, and the aperture of the central hole 16 is adjusted by the aperture cover 13 under the driving of the rotary ring 12. The structure of the aperture cover 13 and the rotary ring 12 can be referred to as a camera lens adjusting structure or a camera cover opening and closing structure. Such as the description of paragraph 27 and the structure of FIGS. 1 and 2 in the Chinese patent "digital single lens reflex camera dust-proof device" (publication number: CN 201615979U).
When the plug-in sheet inserting device is used, the graphic sheet 6 is fixed on the clamping seat 5 on the front surface of the plug-in sheet body 1, and the poke rod rotates to enable the size of the central hole 16 to reach the proper size. The insert body 1 which is adjusted is inserted into the insert hole of the projection lens base, the light source is turned on, and a proper light and shadow effect is projected. In addition, the poke rod can be finely adjusted after the insert piece body 1 is inserted into the projection lens base, so that the fine adjustment of the aperture of the diaphragm is realized.
Referring to fig. 6 and 7, both the rectangular pattern sheet 6 and the circular pattern sheet 6 can be well butted with the insert body 1. Embodiment one can also use a circular pattern sheet 6 as in fig. 7. The circular pattern sheet 6 is provided with an extending section which is beneficial to hand-held operation.
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. the utility model provides a projecting lens seat inserted sheet of adjusting luminance which characterized in that: including inserted sheet body and the subassembly of adjusting luminance, the inserted sheet body is circular piece, and open in the centre has the through-hole, adjust luminance the unit mount in the back of inserted sheet body, the subassembly of adjusting luminance forms an regulation hole, the through-hole position on regulation hole and the inserted sheet body corresponds, thereby adjust luminance the size that the subassembly changed the regulation hole and change the light quantity that passes through the front of inserted sheet body sets up the cassette, the cassette is used for fixed figure piece, the fretwork pattern of figure piece corresponds with the through-hole position on the inserted sheet body.
2. A projection lens mount dimming insert according to claim 1, wherein: the clamping seat comprises an elastic pressing sheet, one end of the elastic pressing sheet is fixed on the inserting sheet body through a fastening piece, and when the pattern sheet is inserted, the pattern sheet is pressed between the elastic pressing sheet and the inserting sheet body through the elastic pressing sheet.
3. a projection lens mount dimming insert according to claim 2, wherein: the card holder is three, and the equipartition is on the 270 circular arcs of a concentric circle of inserted sheet body, and the vacancy position of card holder is used for inserting the figure piece.
4. A projection lens mount dimming insert according to claim 3, wherein: the inserting piece body is provided with a handle, and the handle is located on one side of the vacant position.
5. a projection lens mount dimming insert according to claim 1, wherein: the middle through hole of the insert body is a round hole.
6. the projection lens holder dimming insert according to any one of claims 1 to 5, wherein: the light-adjusting component comprises a pressing plate arranged on the back surface of the inserting piece body, a through hole is formed in the middle of the pressing plate, the through hole in the middle of the pressing plate corresponds to the through hole in the middle of the inserting piece body, a plurality of light-adjusting pieces are inserted between the pressing plate and the inserting piece body, adjusting holes are formed in the through holes of the inserting piece body and the pressing plate through the plurality of light-adjusting pieces, and the inserting distance of the light-adjusting pieces is adjusted according to the size of the.
7. The projection lens base dimming insert of claim 6, wherein: the number of the dimming sheets is four, and the adjusting holes formed by the four dimming sheets are rectangular holes.
8. The projection lens holder dimming insert according to any one of claims 1 to 5, wherein: the subassembly of adjusting luminance includes light ring cover and regulation pole, the back of inserted sheet body sets up the swivel, light ring cover sets up on the swivel, and the centre bore of light ring cover corresponds with the through-hole of inserted sheet body, still sets up the driving lever on the swivel, the swivel is stirred to the driving lever and is rotated, and light ring cover is under the drive of swivel, adjusts the aperture in centre bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827116.0U CN209784707U (en) | 2019-06-04 | 2019-06-04 | Light-adjusting insert for projection lens base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827116.0U CN209784707U (en) | 2019-06-04 | 2019-06-04 | Light-adjusting insert for projection lens base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209784707U true CN209784707U (en) | 2019-12-13 |
Family
ID=68788486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920827116.0U Active CN209784707U (en) | 2019-06-04 | 2019-06-04 | Light-adjusting insert for projection lens base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209784707U (en) |
-
2019
- 2019-06-04 CN CN201920827116.0U patent/CN209784707U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7303308B2 (en) | Lighting apparatus | |
| US4468720A (en) | Variable mask device for an illuminator | |
| GB2111715A (en) | Rear projection apparatus | |
| US20230350272A1 (en) | Flash housing for photographic purposes, a set comprising a flash housing for photographic purposes and at least one flash light shaping tool, and a flash light shaping tool | |
| US7758194B2 (en) | Light source adjusting device | |
| CN209784707U (en) | Light-adjusting insert for projection lens base | |
| US5537166A (en) | External projection lens aperture | |
| WO2024078591A1 (en) | Condenser cylinder and photography lighting effect apparatus | |
| CN209688609U (en) | A kind of lamps and lanterns | |
| CN211083781U (en) | High-brightness electric focusing L ED spotlight | |
| US5988835A (en) | Rotating multiple gel and pattern mount for film/video lights | |
| GB2098749A (en) | Negative to positive image converting apparatus | |
| CN109668084A (en) | A kind of lamps and lanterns | |
| CN214067539U (en) | Shooting auxiliary device and camera lens with same | |
| CN212965711U (en) | Photographic lamp | |
| CN212961225U (en) | LED blackboard lamp | |
| US2700917A (en) | Microcard viewer | |
| CN220626828U (en) | Imaging lens compatible with various Barongkous | |
| US1695556A (en) | Apparatus for projecting light | |
| US5021814A (en) | Single-lens reflex camera with strobe incorporated therein | |
| US5054909A (en) | Lamp housing for motion picture film projector | |
| CN218728520U (en) | Photographic lamp | |
| JP2003021867A (en) | Projector device with lamp attachment angle adjusting mechanism | |
| CN218327976U (en) | Projection lamp | |
| CN220102591U (en) | Image pickup apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |