Projection Lens Assembly
AssemblyInterchangeable barrel lens that focuses the illuminated slide onto the screen, driven along a rack by the autofocus motor. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Projection Lens Assembly parts and their functions
5 top-level parts · 28 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Projection Lens | 1× | Slide-in f/2.8 85 mm (or 70–120 mm zoom) lens that forms the screen image; longer focal lengths suit longer throw distances. |
| 2 | Lens Barrel Rack | 1× | Toothed rack on the lens barrel engaged by the focus pinion, allowing both motorised and manual focusing. |
| 3 | Servo Motor 4 parts | 1× | Focus drive motor |
| 4 | Helical Gear Pair | 1× | Focus reduction gears |
| 5 | Autofocus Sensor | 1× | Infrared LED and split photocell aimed at the slide surface; if a warm slide "pops" out of plane, the reflected spot shifts and the motor refocuses. |
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Bill of materials for Projection Lens Assembly
5 top-level lines · 16 rows shown · 28 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Projection Lens | slide-projector-projection-lens | 1× | 1 | · | part |
| 2 | Lens Barrel Rack | slide-projector-lens-barrel-rack | 1× | 1 | · | part |
| 3 | Servo Motor 4 parts | servo-motor | 1× | 1 | 24 | assembly |
| 3.1 | Stator Assembly 3 parts | stator-assembly | 1× | 1 | 3 | assembly |
| 3.1.1 | Stator Core (laminations) | stator-core | 1× | 1 | · | part |
| 3.1.2 | Copper Winding | copper-winding | 1× | 1 | · | part |
| 3.1.3 | Slot Insulation | stator-insulation | 1× | 1 | · | part |
| 3.2 | Rotor Assembly 4 parts | rotor-assembly | 1× | 1 | 19 | assembly |
| 3.2.1 | Rotor Shaft | rotor-shaft | 1× | 1 | · | part |
| 3.2.2 | Rotor Core | rotor-core | 1× | 1 | · | part |
| 3.2.3 | Neodymium Magnet | neodymium-magnet | 16× | 16 | · | part |
| 3.2.4 | Ball Bearing | ball-bearing | 1× | 1 | · | part |
| 3.3 | Encoder | encoder | 1× | 1 | · | part |
| 3.4 | Motor Housing | motor-housing | 1× | 1 | · | part |
| 4 | Helical Gear Pair | gear-pair | 1× | 1 | · | part |
| 5 | Autofocus Sensor | slide-projector-af-sensor | 1× | 1 | · | part |
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Where the projection lens assembly is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$80. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| sunnyoptical.com ↗ | Ningbo, CN | Optics & camera modules | 1,000 pcs | 8–12 wks |
|
🇨🇳OFILM
ofilm.com ↗
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Shenzhen, CN | Camera modules | 1,000 pcs | 8–12 wks |
| vvdntech.com ↗ | Gurugram, IN | Electronics & camera modules | 1,000 pcs | 8–12 wks |
| truly.net ↗ | Shanwei, CN | Displays & camera modules | 1,000 pcs | 8–12 wks |
| aactechnologies.com ↗ | Singapore | Acoustics & optics | 1,000 pcs | 8–12 wks |